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GE Multilin 850 Instruction Manual Download Page 491

CHAPTER 8: CONTROL

POLE DISCORDANCE (52)

850 FEEDER PROTECTION SYSTEM – INSTRUCTION MANUAL

8–19

Pole Discordance (52)

Introduction

The 850-D (Distribution Feeder) relay provides three Pole Discordance elements under the 
Control menu. Each element can be used for re-tripping the breaker after pole discordance 
detection, or tripping an upstream breaker in cases when the pole discordance persists. 
The element detects if one or two of the breaker poles remain open following a close 
command, or if one or two of the poles remain closed following an open command. The 
pole discordance function operates based on either information from auxiliary contacts 
associated with the open/close status of each pole of the breaker, or by detecting the 
presence of phase currents above/below programmable current limit level upon breaker 
close or open respectively. To detect pole discordance using phase currents, the setpoint 
“Current Limit” must be programmed. By monitoring each phase current with respect to 
the selected Current Limit threshold, the relay detects whether the breaker pole is open or 
closed. If the phase current is detected below the current limit, the pole will be declared 
open, and if the current is above that limit, the pole will be declared closed. The 
implemented pole discordance logic in the 850-D allows either detection of pole 
discordance externally using single contact input (

Figure 8-11:Detecting Pole Discordance 

externally

), contact-based detection using 6 input contacts from 52a and 52b auxiliary 

breaker contacts per-phase (

Figure 8-12:Pole Discordance detected by the relay

), current-

based detection, any combination of the three detection methods, or all three methods 
enabled.
The pole discordance scheme in the 850-D relay allows two types of breaker contact 
wiring: 

Figure 8-11:Detecting Pole Discordance externally

 shows wiring of the breaker pole 

discordance signal detected externally. In such schemes the three 52a contacts are 
parallel and connected in series with the three parallel 52b contacts. If the External Pole 
Discordance input turns ON, this indicates either one or more 52b contacts did not open 
after a breaker close command, or one or more 52a contacts remained closed after a 
breaker trip command.

Figure 8-11: Detecting Pole Discordance externally

Figure 8-12:Pole Discordance detected by the relay

 shows the connection of breaker 52a 

and 52b auxiliary contacts per breaker pole, and their wiring to the relay inputs. This wiring 
of the breaker contacts to the relay is used when the contact-based method for pole 
discordance detection is enabled on the relay.

 

8xx relay

External Pole Discordance

Ia

Ib

Ic

Pole Discordance

52a

52a

52a

52b

52b

52b

Circuit Breaker

894180A1.cdr

Summary of Contents for Multilin 850

Page 1: ...Instruction manual 850 version 2 2x GE publication code 1601 0298 AD GEK 119591N 1601 0298 AD 850 Feeder Protection System Feeder protection and control GE Grid Solutions ...

Page 2: ...ed trademarks of GE Multilin Inc The contents of this manual are the property of GE Multilin Inc This documentation is furnished on license and may not be reproduced in whole or in part without the permission of GE Multilin The content of this manual is for informational use only and is subject to change without notice Part number 1601 0298 AD March 2018 Note May contain components with FCC ID XF6...

Page 3: ...Must read Information 1 44 Storage 1 45 For Further Assistance 1 46 Repairs 1 46 2 INSTALLATION Mechanical Installation 2 1 Product Identification 2 1 Dimensions 2 2 Mounting 2 3 Standard Panel Mount 2 4 Depth Reducing Collar 2 5 Draw out Unit Withdrawal and Insertion 2 7 Removable Power Supply 2 8 Removable Magnetic Module 2 9 Remote Module I O RMIO 2 10 IP20 Back Cover 2 12 Arc Flash Sensor 2 13...

Page 4: ...the Quick Connect Feature 3 27 Configuring Ethernet Communications 3 28 Connecting to the Relay 3 30 Working with Setpoints Setpoints Files 3 31 Engaging a Device 3 31 Entering Setpoints 3 31 File Support 3 32 Using Setpoints Files 3 33 Downloading Saving Setpoints Files 3 33 Adding Setpoints Files to the Environment 3 34 Creating a New Setpoints File 3 35 Upgrading Setpoints Files to a New Revisi...

Page 5: ... 5 29 DNP IEC104 Point Lists 5 30 IEC 60870 5 104 5 33 IEC 60870 5 103 5 35 IEC 61850 5 35 The IEC 61850 Configurator 5 35 IEC 61850 Configurator Details 5 37 Remote Modbus Device 5 38 Transient Recorder 5 39 Data Logger 5 40 Fault Reports 5 43 Event Data 5 45 Flex States 5 46 Front Panel 5 46 Programmable LEDs 5 46 Programmable Pushbuttons 5 49 Ten 10 Pushbutton Membrane Front Panel Defaults 5 54...

Page 6: ...Directional Overcurrent Protection 67G 6 36 Sensitive Ground Time Overcurrent Protection 51SG 6 41 Sensitive Ground Instantaneous Overcurrent Protection 50SG 6 44 Sensitive Ground Directional Overcurrent Protection 67SG 6 47 Restricted Ground Fault 87G 6 52 Switch on to Fault SOTF 6 57 Negative Sequence Time Overcurrent Protection 51_2 6 60 Negative Sequence Instantaneous Overcurrent Protection 50...

Page 7: ... Detection 7 41 RTD Temperature 7 45 RTD Trouble 7 50 Loss of Communications 7 51 8 CONTROL Setpoint Group 8 2 Local Control Mode breakers and switches 8 4 Breaker Control 2 8 13 Switch Control 9 8 16 Pole Discordance 52 8 19 Virtual Input Control 8 25 Trip Bus 8 26 Breaker Failure 50BF 8 28 Setup 8 29 Initiate 8 32 Arc Flash Protection 8 34 Synchrocheck 25 8 36 Manual Close Blocking 8 41 Cold Loa...

Page 8: ...Pushbuttons 10 3 Breakers 10 4 Information 10 5 Main CPU 10 5 Comms CPU 10 5 Hardware Versions 10 6 Environment 10 6 Settings Audit 10 7 Switches 10 7 Last Trip Data 10 7 Arc Flash 10 8 Contact Inputs 10 8 Output Relays 10 8 Output Relay 1 TRIP 10 8 Output Relay 2 CLOSE 10 8 Virtual Inputs 10 9 Virtual Outputs 10 9 Flex State 10 10 Communications 10 10 GOOSE Rx and Tx 10 10 Device Status 10 14 Clo...

Page 9: ...Ds 11 17 RTD Maximums 11 18 RRTD Maximums 11 18 Analog Inputs 11 18 FlexElements 11 19 12 RECORDS Events 12 1 Transient Records 12 2 Data Logger 12 2 Fault Reports 12 2 Breakers Records 12 4 Breaker Arcing Current 12 4 Breaker Health 12 4 Digital Counters 12 5 Remote Modbus Device 12 6 Clear Records 12 8 13 MAINTENANCE Environmental Health Report 13 2 General Maintenance 13 4 In service Maintenanc...

Page 10: ...VIII 850 FEEDER PROTECTION SYSTEM INSTRUCTION MANUAL ...

Page 11: ...r underground and overhead feeders for utility and industrial power networks The 850 D variant with support for up to eight CT inputs and two sets of four traditional VT inputs provides effective protection control and monitoring of two distribution feeders This feature also offer redundancy with the same number of devices The 850 P variant with support for up to twelve CT inputs and six Low volta...

Page 12: ... be accomplished with the front panel keys and display Due to the numerous settings this manual method can be somewhat laborious To simplify programming and provide a more intuitive interface setpoints can be entered with a PC running the EnerVista 8 Setup software provided with the relay Even with minimal computer knowledge this menu driven software provides easy access to all front panel functio...

Page 13: ...lternative reference source i e three phase currents signal or line voltage for the configuration of tie breaker if the frequency detected from the three phase voltage inputs is declared invalid The switching will not be performed if the frequency from the alternative reference signal is detected invalid Upon detecting valid frequency on the main source the tracking will be switched back to the ma...

Page 14: ...nderfrequency UV Restoration UF Restoration Bus Transfer MCB LIG HT Broken Conductor Load Encroachment CT Supervision Demand Pulsed Outputs Harmonic Detection 37 21YN 27Q 27T 79 AFP 850 D only 55 3 CTs CT 27P 59P 59N 59_2 VTFF 81U 81O 81R 51N 50N 67N RGF FAULT REPORT EVENT RECORDER TRANSIENT RECORDER METERING LOAD BUS TRIP 52 CLOSE MONITORING CLP 50BF 51P 50P 67P 51_2 50_2 67_2 49 50G 51G 51G 50G ...

Page 15: ...G Ground Instantaneous Overcurrent Y 1 Y 8 Y 12 50SG Sensitive Ground Instantaneous Overcurrent Y 1 Y 4 50N Neutral Instantaneous Overcurrent Y 2 Y 8 Y 16 50P Phase Instantaneous Overcurrent Y 2 Y 8 Y 16 50_2 Negative Sequence Instantaneous Overcurrent Y 1 Y 8 Y 16 51G Ground Time Overcurrent Y 1 Y 4 Y 6 51SG Sensitive Ground Time Overcurrent Y 1 Y 2 51N Neutral Time Overcurrent Y 2 Y 4 Y 8 51P Ph...

Page 16: ...rectional Element Y 1 Y 2 79 Automatic Recloser Y 1 Y 2 81O Overfrequency Y 6 Y 12 81U Underfrequency Y 6 Y 12 81R Frequency Rate of Change Y 6 Y 12 87G Restricted Ground Fault RGF Y Y AFP Arc Flash Protection Y 4 Y 4 CLP Cold Load Pickup Y 1 Y 2 I1 12 Broken Conductor Y 1 Y 3 MTM Automatic Bus Transfer Scheme Y Y MCB Manual Close Blocking Y Y Y SOTF Switch on to Fault Y 3 TGFD Transient Ground Fa...

Page 17: ... Digital Counters Event Recorder Fault Report and Fault Locator FlexElements FlexLogic Equations Flex States Harmonic Detection IEC 61850 Communications Metering current voltage power PF energy frequency harmonics THD Modbus User Map Neutral Admittance Non volatile Latches OPC UA Communications Output Relays Pulsed Outputs Setpoint Groups 6 Trip Bus 6 Transient Recorder Oscillography Trip and Clos...

Page 18: ...ords Targets Fault Reports Testing Output Relays Virtual Inputs Contact Inputs Arc Flash Virtual Outputs Communications Information Device Status PTP Status Clock Last Trip Data Flex States Summary Breakers Switches Autoreclose Summary Currents Voltages Frequency Harmonics Synchrocheck Power Energy Current Demand Thermal Capacity Power Demand Directional Power Wattmetric Gnd Flt Fast Underfrequenc...

Page 19: ...ions based on specific roles and individual user accounts configured on the AAA server At present the defined roles are Administrator Operator and Observer Strong encryption of all access and configuration network messages between the EnerVista software and 850 devices using the Secure Shell SSH protocol the Advanced Encryption Standard AES and 128 bit keys in Galois Counter Mode GCM as specified ...

Page 20: ...nder the command menu section The Operator can also use the Virtual Input command under the control menu section The Operator can view settings from EnerVista or the front panel but does not have the ability to change any settings This role is not a concurrent role Observer The Observer role has read only access to all 850 settings This role allows concurrent access The Observer is the default rol...

Page 21: ...om ViewProduct aspx Model 850 for available order code combinations FASTPATH Harsh Environment Coating is a standard feature on all 8 Series units Advanced security is only available with advanced communications 1E 1P 3A 3E When the advanced communications option is selected the Ethernet port on the main CPU is disabled FASTPATH Retrofit order codes must be configured using the GE Multilin Online ...

Page 22: ... Inputs 5 Form A 1 Form C M 4 SSR HSHB 1 Form C Relay 7 Digital Inputs Int Ext supply Faceplate M Basic Membrane Keypad with 3 Pushbuttons G Standard Rugged Keypad 3 Pushbuttons A Advanced Membrane Front Panel with 10 Pushbuttons Current Protection D Standard 850 D 37 3 50P 4 CT bank 50N 4 CT bank 50G 4 CT bank 51P 4 51N 4 51G 2 CT bank 50SG 4 CT bank 50_2 4 CT bank 51SG 2 CT bank 51_2 2 CT bank R...

Page 23: ... 51N 2 51G 1 M Standard 850 E Basic 50SG 1 50_2 1 51SG 1 51_2 1 RGF 1 A Advanced 850 E Standard 850 E 67P 1 67N 1 67G 1 67SG 1 67_2 1 49 2 Load Encroachment 1 Broken Conductor 1 Voltage Monitoring and Protection S Standard Voltage Metering Protection 27P 4 VT bank 27X 2 VT bank 59P 4 59N 4 59X 2 VT bank 81O 6 VT bank 81U 6 VT bank P Advanced Voltage Metering Protection Standard 25 1 CT bank 27T 4 ...

Page 24: ...4 SSR HSHB 1 Form C Relay 7 Digital Inputs Int Ext supply Slot H HV I O N None A 2 Form A 3 Form C 7 Digital Inputs Int Ext supply B 10 Digital Inputs 9 Form A D 8 Double Pole Outputs K 10 Digital Inputs 5 Form A 1 Form C M 4 SSR HSHB 1 Form C Relay 7 Digital Inputs Int Ext supply Faceplate M Basic Membrane Keypad with 3 Pushbuttons G Standard Rugged Keypad 3 Pushbuttons A Advanced Membrane Front ...

Page 25: ... RMIO requires firmware version 2 00 and later and hardware version B Check the hardware version under Status Information Main CPU If RMIO support is required for relays with earlier hardware versions contact the factory G G Power Supply L 24 48 V DC H 110 250 V DC 110 230 V AC I O Module 1 G Remote Module I O 3 100 Ohm Platinum RTDs I O Module 2 G Remote Module I O 3 100 Ohm Platinum RTDs I O Mod...

Page 26: ... steps of 0 001 x CT Dropout Level 97 to 98 of Pickup Level Accuracy For 0 1 to 0 2 x CT 0 2 of reading or 1 5 of rated whichever is greater For 0 2 x CT 1 5 of reading Operate Time 4 ms at 6 x Pickup at 60 Hz 5 ms at 6 x Pickup at 50 Hz 4 8 ms at 3 6 x Pickup at 60 Hz 4 10 ms at 3 6 x Pickup at 50 Hz AUXILIARY OVERVOLTAGE 59X Operating Parameter Vx Phasor Pickup Level 0 00 to 3 00 x VT in steps o...

Page 27: ...stic Angle 0º to 359º in steps of 1 Calibration Angle 0 00º to 0 95º in steps of 0 05 Power Pickup Range 1 200 to 1 200 x Rated Power in steps of 0 001 Pickup Level Accuracy 1 or 0 001 x Rated Power whichever is greater Hysteresis 2 or 0 001 x Rated Power whichever is greater Pickup Time Delay 0 000 to 6000 000 s in steps of 0 001 s Operate Time 55 ms at 1 1 x pickup at 60 Hz 65 ms at 1 1 x pickup...

Page 28: ...T 67G Directionality Co existing forward and reverse Polarizing Voltage Current Dual Polarizing Voltage V_0 or VX Polarizing Current Isg Operating Current Ig Level Sensing Ig Isg Characteristic Angle 90º to 90º in steps of 1 Limit Angle 40º to 90º in steps of 1 independent for forward and reverse Angle Accuracy 2º Pickup Level 0 050 to 30 000 x CT in steps of 0 001 Dropout Level 97 to 98 Operate T...

Page 29: ... CT in steps of 0 001 x CT Dropout Level 97 to 98 of Pickup Level Accuracy For 0 1 to 2 0 x CT 0 5 of reading or 0 4 of rated whichever is greater For 2 0 x CT 1 5 of reading Pickup Time Delay 0 000 to 6000 000 s in steps of 0 001 s Dropout Time Delay 0 000 to 6000 000 s in steps of 0 001 s Overreach 2 Operate Time 12 ms typical at 3 x Pickup at 60 Hz 15 ms typical at 3 x Pickup at 50 Hz Timer Acc...

Page 30: ...2º Pickup Level 0 050 to 30 000 x CT in steps of 0 001 x CT Dropout Level 97 to 98 of Pickup Operate Time 12 ms typical at 3 x Pickup at 60 Hz 15 ms typical at 3 x Pickup at 50 Hz NEUTRAL OVERVOLTAGE 59N Operating Parameter 3V_0 calculated from phase to ground voltages Pickup Level 0 02 to 3 00 x VT in steps of 0 01 x VT Dropout Level 97 to 98 of Pickup Level Accuracy 0 5 of reading from 10 to 208...

Page 31: ...ime IEC A B C and Short Inverse IAC Extremely Very Inverse Short Inverse FlexCurve A B C D I2 t I4 t Curve Multiplier 0 05 to 600 00 in steps of 0 01 Reset Time Instantaneous Timed Curve Timing Accuracy Currents 1 03 to 20 x pickup 3 of operate time or cycle whichever is greater from pickup to operate Voltage Restrained Function 51V Modifies Pickup from 0 1 V 0 9 VT Nominal in a fixed linear relat...

Page 32: ... operate PHASE OVERVOLTAGE 59P Voltage Fundamental Phasor Magnitude Pickup Level 0 02 to 3 00 x VT in steps of 0 01 x VT Dropout Level 97 to 98 of Pickup Level Accuracy 0 5 of reading from 10 to 208 V Phases Required for Operation Any one Any two All three Pickup Time Delay 0 000 to 6000 000 s in steps of 0 001s Definite Time Dropout Time Delay 0 000 to 6000 000 s in steps of 0 001s Definite Time ...

Page 33: ... greater For 2 0 xCT 1 5 of reading 2 0 xCT rating Operate Time 12 ms at 3 Pickup at 60 Hz Timer Accuracy 3 of operate time or cycle whichever is greater SENSITIVE GROUND INSTANTANEOUS OVERCURRENT 50SG Operating Parameter Isg Fundamental Phasor Magnitude Pickup Level 0 005 to 3 000 xCT in steps of 0 001 xCT Pickup Level 0 005 to 3 000 xCT in steps of 0 001 xCT Dropout Level 97 to 98 of Pickup Leve...

Page 34: ...00 000 s in steps of 0 001s Pickup Accuracy Per phase voltage input channel error Dropout Accuracy Per phase voltage input channel error Curve Timing Accuracy at 0 90 x pickup 3 5 of operate time or cycle whichever is greater from pickup to operate THERMAL OVERLOAD 49 Operating Parameter RMS current Pickup Level 0 050 to 30 000 x CT in steps of 0 001 x CT Alarm Level 70 0 to 110 0 in steps 0 1 Hea...

Page 35: ...nder Reactive Power Level Accuracy 0 5 of reading or 2V secondary whichever is greater Pickup Time Delay 0 000 to 600 000 s in steps of 0 001 Timer Accuracy 3 of the delay setting time or cycle whichever is greater from pickup to operate Current Supervision Level 0 00 to 0 20 x CT in steps of 0 01 Stages Trip Alarm and Configurable Restoration Function Min Voltage 0 05 to 1 50 x VT in steps of 0 0...

Page 36: ...ot can block IOC raise TOC Pickup or change the setting group Adjustability Current supervision can adjust the maximum number of shots attempted Timer Accuracy 3 of delay setting or cycle whichever is greater from pickup to operate BREAKER CONTROL Operation Asserted FlexLogic Operands Function Opens closes blocks bypasses blocks to the feeder breaker BREAKER FAILURE Mode 3 pole Current Supervision...

Page 37: ...mit 0 000 to 1 000 x CT in steps of 0 001 x CT Dropout Level 97 to 98 of Current Limit Pickup Time Delay 0 000 to 6000 000 s in steps of 0 001 s Level Accuracy Current 0 1 I 2 0 x CT 0 5 of reading or 0 4 of rated whichever is greater I 2 0 x CT 1 5 of reading Timer Accuracy 3 of operate time or 1 cycle whichever is greater SWITCH CONTROL Operation Local PB control and SLD and Remote asserted Flex...

Page 38: ...ng or 1 cycle whichever is greater from pickup to operate POWER FACTOR 55 Switch In Level 0 01 Lead to 1 to 0 01 Lag in steps of 0 01 Dropout Level 0 01 Lead to 1 to 0 01 Lag in steps of 0 01 Delay 0 000 to 6000 000 s in steps of 0 001 s Minimum Operating Voltage 0 00 to 1 25 x VT in steps of 0 01 x VT Level Accuracy 0 02 Timer Accuracy 3 of delay setting or 1 cycle whichever is greater from picku...

Page 39: ...y 0 00 to 600 00 s Timer Accuracy 3 of delay setting or 2 cycles whichever is greater from pickup to operate HARMONIC DETECTION Operating Parameter Current 2nd 3rd 4th 5th harmonic or THD per phase Timer Accuracy Harmonics 3 of delay setting or 1 4 cycle whichever is greater from pickup to operate THD 3 of delay setting or 3 cycles whichever is greater from pickup to operate Recording TRANSIENT RE...

Page 40: ...64 Configurable FlexAnalog values Commands Clear Last Trip Data User Programmable Elements FLEXLOGIC Lines of code 1024 Supported operations NOT XOR OR 2 to 16 inputs AND 2 to 16 inputs NOR 2 to 16 inputs NAND 2 to 16 inputs latch reset dominant edge detectors timers Inputs any logical variable contact or virtual input Number of timers 32 Pickup delay 0 to 60000 ms sec min in steps of 1 Dropout de...

Page 41: ...ckup to operate USER PROGRAMMABLE LEDS Number 17 14 3 PB LEDS for Membrane and Rugged Front Panels Programmability any logic variable contact or virtual input Reset mode self reset or latched USER PROGRAMMABLE PUSHBUTTONS Number of pushbuttons 10 3 Membrane and Rugged Front Panels Mode Self reset latched Display message 2 lines of 13 characters on each line Dropout timer 0 000 to 60 000 s in steps...

Page 42: ...h to 2147483 647 Mvarh Parameters 3 phase only Update Rate 50 ms Accuracy 2 0 of reading PHASORS Current Parameters Phase A B C Neutral and Ground Magnitude Accuracy 0 5 of reading or 0 2 of rated whichever is greater from 0 1 to 2 0 x CT 1 0 of reading 2 0 x CT Angle Accuracy 2 3 for 25 Hz Voltages Parameters Wye VTs A n B n C n A B B C C A Average Phase Neutral and Residual Delta VTs A B B C C A...

Page 43: ... second at 100 x rated current 2 seconds at 40 x rated current continuous at 3 x rated current AC VOLTAGE VT Range 10 to 260 V Nominal Frequency 20 to 65 Hz Burden 0 25 VA at 120 V Conversion Range 1 to 275 V Voltage Withstand continuous at 260 V to neutral 1 min hr at 420 V to neutral LEA VOLTAGE INPUTS Number of LEA Sensors 6 LEA inputs 2 3 phase voltage banks Max Input Range 18 Vpeak 12 1 4142 ...

Page 44: ...erating Voltage Tolerance 17VDC Vlow off 10V Vhigh on 19V 33VDC Vlow off 23V Vhigh on 38V 84VDC Vlow off 70V Vhigh on 88V 166VDC Vlow off 140V Vhigh on 176V Recognition time 1 ms typical Debounce time 0 0 to 16 0 ms in steps of 0 5 ms Continuous current draw burden 2 mA 1 mA for I O Card C CLOCK Setup Date and Time Daylight Saving Time UTC Coordinated Universal Time Backup Retention 1 hour IRIG B ...

Page 45: ...pacity DC inductive with respect to source voltage L R 40 ms 10000 Operation per IEC 60255 1 2009 08 24 V 1 A 48 V 0 5 A 125 V 0 3 A 250 V 0 2 A Breaking Capacity DC resistive with respect to source voltage 24 V 10 A 48 V 1 5A 125 V 0 4 A 250 V 0 3 A Breaking Capacity AC inductive with respect to source voltage PF 0 35 or less A300 Pilot duty 720 VA Breaking Capacity AC resistive with respect to s...

Page 46: ...L R 40 ms 10000 Operation per IEC 60255 1 2009 08 24 V 1 A 48 V 0 5 A 125 V 0 3 A 250 V 0 2 A Breaking Capacity DC resistive with respect to source voltage 24 V 8 A 48 V 2 A 125 V 0 3 A 250 V 0 2 A Breaking Capacity AC inductive with respect to source voltage PF 0 35 or less B300 Pilot duty 360 VA Breaking Capacity AC resistive with respect to source voltage 277 V 5 A Operating Time coil energizat...

Page 47: ... resistive load 8ms Contact Material Silver alloy Mechanical Endurance no load 10 000 Maximum Frequency of operation 360 h Protection Device across contact EMI Suppression Cap 1nF SOLID STATE RELAYS ON I O CARD M Maximum Working Voltage 300 VDC Make and short time carry current 30A 0 2 s per IEEE C37 90 Maximum Continuous Current per contact 10 A Total maximum current for contacts connected to com...

Page 48: ... 20 V Maximum DC Voltage 60 V POWER CONSUMPTION Typical 20 W 40 VA Maximum 34 W 70 VA Communications ETHERNET BASE OFFERING Modes 10 100 Mbps One Port RJ45 Protocol Modbus TCP DNP ETHERNET CARD OPTION C 2X COPPER RJ45 PORTS Modes 10 100 MB Two Ports RJ45 with this option both enabled ports are on the communications card the Ethernet port located on the base CPU is disabled Protocols Modbus TCP DNP...

Page 49: ...OTE MODBUS DEVICE PROFILE Device Name BSG3 13 alphanumeric characters maximum IP Address 0 0 0 0 standard Ethernet address Slave Address 254 1 to 254 Modbus Port 502 0 to 10000 default 502 Poll Rate 3 minute OFF 3 to 120 minutes the continuous mode poll interval is defined as the poll rate interval Trigger Off any FlexLogic Operand the trigger mode is based on the FlexLogic operand designed to tri...

Page 50: ...urge Immunity EN61000 4 5 Level 3 Conducted RF Immunity EN61000 4 6 Level 3 Power Frequency Immunity IEC60255 26 Class A B Voltage variation interruption and Ripple DC IEC60255 26 PQT levels based on IEC61000 4 29 IEC61000 4 11 and IEC61000 4 17 Radiated Conducted Emissions CISPR11 CISPR22 Class A Sinusoidal Vibration IEC60255 21 1 Class 1 Shock Bump IEC60255 21 2 Class 1 Seismic IEC60255 21 3 Cla...

Page 51: ...uct Safety IEC60255 27 As per Normative sections Rated Burden IEC60255 1 Sec 6 10 Contact Performance IEC60255 1 Sec 6 11 Ambient temperatures Storage Shipping 40 C to 85 C Operating 40 C to 60 C Humidity Operating up to 95 non condensing 55 C As per IEC60068 2 30 Variant 2 6 days Altitude 2000m standard base reference evaluated altitude 5000m maximum achievable altitude Pollution Degree II Overvo...

Page 52: ...not specified by the manufacturer or functions abnormally proceed with caution Otherwise the protection provided by the equipment may be impaired and can result in impaired operation and injury CAUTION Hazardous voltages can cause shock burns or death CAUTION Installation service personnel must be familiar with general device test practices electrical awareness and safety precautions must be follo...

Page 53: ...option is ordered Ensure that the control power applied to the device the AC current and voltage input match the ratings specified on the relay nameplate Do not apply current or voltage in excess of the specified limits Only qualified personnel are to operate the device Such personnel must be thoroughly familiar with all safety cautions and warnings in this manual and with applicable country regio...

Page 54: ... feature enabled Note that the factory role password may not be changed In 850 both DNP and IEC104 protocol can work at the same time but consider that there is only one point map So both protocols use the same configured points The 52b contact is closed when the breaker is open and open when the breaker is closed The Phase Directional element responds to the forward load current In the case of a ...

Page 55: ...rcuit breakers the interrupting time for currents is less than 25 of the interrupting rating and can be significantly longer than the normal interrupting time For future reference make a printout of the conversion report immediately after the conversion in case conversion reports are removed or settings modified from the 8 Series Setup Software Storage Store the unit indoors in a cool dry place If...

Page 56: ... Center Contact information is found in the first chapter Obtain a Return Materials Authorization RMA number from the Technical Support Center Verify that the RMA and Commercial Invoice received have the correct information Tightly pack the unit in a box with bubble wrap foam material or styrofoam inserts or packaging peanuts to cushion the item s You may also use double boxing whereby you place t...

Page 57: ... indicates the product model serial number and date of manufacture Figure 2 1 Product Label LISTED C US L U E57838 IND CONT EQ 2D58 R MADE IN CANADA Feeder Protection System Model 850 EP5NNG5HNNANNGSSBSNNNB SerialNumber MJ2AXXXXXXX POWERSUPPLYRATINGS Nominal 100to240V 125to250V Range 88to265V 50 60Hz 88to300V PowerConsumption 20WTyp 34W 70VAMax Input OutputRatings RefertoManual InstructionManual G...

Page 58: ...N MANUAL MECHANICAL INSTALLATION CHAPTER 2 INSTALLATION Dimensions The dimensions in inches millimeters of the 850 are shown below Additional dimensions for mounting and panel cutouts are shown in the following sections Figure 2 2 850 Dimensions ...

Page 59: ... rear of the panel screw the case into the panel at the 8 screw positions see figures in Standard panel mount section Optional tab mounting The V tabs are located on the sides of the case and appear as shown in the following figure Use needle nose pliers to bend the retaining V tabs outward to about 90 Use caution and do not bend and distort the wall of the enclosure adjacent to the tabs The relay...

Page 60: ...rd Panel Mount The standard panel mount and cutout dimensions are illustrated below CAUTION To avoid the potential for personal injury due to fire hazards ensure the unit is mounted in a safe location and or within an appropriate enclosure Figure 2 4 Standard panel mount Figure 2 5 Panel cutout dimensions ...

Page 61: ...e drill hole locations are different when a depth reducing collar is used See Figure 2 7 Depth reducing collar panel cutout 18J0 0030 8 Series Depth Reducing Collar 1 3 8 18J0 0029 8 Series Depth Reducing Collar 3 Figure 2 6 Depth reducing collar dimensions Figure 2 7 Depth reducing collar panel cutout 10 40 A 9 00 7 25 GE PN A DEPTH 1009 0310 1 3 8 1009 0311 3 Dimensions in inches 8 73 892703A1 d...

Page 62: ... on the panel cutout drawing Figure 2 7 Depth reducing collar panel cutout 2 Mount the required collar depth 1 375 or 3 on the captive unit using eight screws as shown 3 Mount the combined unit and collar on the panel using eight screws as shown DEPTH REDUCING COLLAR GE PART 1009 0311 3IN 76 2MM DEPTH GE PART 1009 0310 1 375IN 34 9MM DEPTH 8 SERIES UNIT 8 32x3 8IN P HD PHIL BLK GE PART 1408 0306 q...

Page 63: ...ed from the unit FASTPATH Turn off control power before drawing out or re inserting the relay to prevent mal operation Follow the steps outlined in the diagrams below to insert and withdraw the Draw out unit Figure 2 9 Unit withdrawal and insertion diagram 67 3 6 67 3 1 72 7 72 326 7 21 6 1 5 287 81 7 172 37 9 81 7 67 3 0 17 1 1 7 326 7 21 817 5 287 81 7 6 8 16 57 386 1 2 1 1 7 7 1 7 6 5 7 1 72548...

Page 64: ...ON CHAPTER 2 INSTALLATION Removable Power Supply Follow the steps outlined in the Insert or Remove Power Supply diagram to insert 1 or remove 2 the power supply from the unit Figure 2 10 Insert or Remove the Power Supply Figure 2 11 Unlatch Module location is marked by arrow ...

Page 65: ...STALLATION 850 FEEDER PROTECTION SYSTEM INSTRUCTION MANUAL 2 9 Removable Magnetic Module Follow the steps outlined in the diagram below to insert or remove the magnetic module from the unit Figure 2 12 Insert or Remove the Magnetic Module ...

Page 66: ...ollow these installation steps Figure 2 13 RMIO DIN rail mounting Base Expansion units Figure 2 14 RMIO Base Unit screw mounting SNAP IN THE DIN CLIPS QTY 4 FOR DIN RAIL MOUNTING 0 30 7 6 mm 1 38 35 1 mm DIN 3 RAIL 853726A1 CDR MEETS VIBRATION REQUIREMENT OF IEC 60255 SEC 21 1 21 2 21 3 2 250 57 15 mm 6 32 THREADED HOLE QTY 2 4 100 104 14 mm 853727A1 CDR ...

Page 67: ...STRUCTION MANUAL 2 11 Figure 2 15 RMIO Expansion Unit screw mounting 6 32X1 2 FT FLAT HEAD PHIL ZINC QTY 2 SUPPLIED GE PART 1406 0117 TIGHTENING TORQUE 10 lb in 0 356 9 03 mm 0 672 17 06 mm 1 500 38 10 mm EXPANSION UNIT OUTLINE 2 285 58 04 mm 6 32 THREADED HOLE QTY 2 853755A1 cdr ...

Page 68: ... Cover If using the IP20 back cover follow these installation steps 1 Place the IP20 cover in the orientation shown over the CT VT terminal blocks routing wiring through the cover slots 2 Secure the cover with the 4 screws provided Suggested tightening torque is 8 lb in Figure 2 16 IP20 Back Cover installation ...

Page 69: ...oceeding Care must be taken when handling the Arc Flash sensor fiber which can be damaged if twisted bent or clamped tightly during installation Do not bend sensor fiber sharply or with a radius of less than 25 mm 1 inch Sharp bends can damage the fiber Do not pull or tug loops of sensor fiber as sharp bends may result Do not clamp sensor fiber tightly during installation Sensor fiber should be he...

Page 70: ...nsor fiber follow these steps 1 Choose a location for the sensor clear of any obstructions that could shield the sensor from arc flash light 2 Mount the sensor securely using the mounting screw holes 3 Once the sensor is securely mounted carefully route the sensor fiber from the AFS sensor to the base unit minimizing loops and curves for the strongest possible signal 4 Secure all sensor fibers loo...

Page 71: ...C9 C8 C7 C6 C5 C4 C3 C2 C1 C12 C11 C10 C15 C14 C13 C18 C17 C16 DIGITAL INPUT 8 DIGITAL INPUT 7 DIGITAL INPUT 6 COMMON DIGITAL INPUT 5 DIGITAL INPUT 4 DIGITAL INPUT 3 DIGITAL INPUT 2 DIGITAL INPUT 1 DIGITAL INPUT 13 COMMON DIGITAL INPUT 15 DIGITAL INPUT 14 DIGITAL INPUT 12 DIGITAL INPUT 11 COMMON DIGITAL INPUT 10 DIGITAL INPUT 9 B9 B8 B7 B6 B5 B4 B3 B2 B1 B12 B11 B10 B15 B14 B13 B18 B17 B16 SHIELD ...

Page 72: ... H17 G H16 G H15 G H14 G H13 SLOT G OR H I O_A OPTIONAL ACCESS POINT J15 AUX VT AUXILIARY 4 AUXILIARY 9 AUXILIARY 10 AUXILIARY 11 AUXILIARY 12 AUXILIARY 16 G1 G2 G3 G4 G5 G6 G7 G8 G9 G10 G11 G12 G13 G14 G15 G16 G17 G18 G19 G20 G21 G22 G23 G24 DCmA I O ANALOG OUTPUT ANALOG INPUT RTD 1 1 2 3 4 5 6 7 1 1 2 3 4 SHIELD SHIELD SHIELD RETURN HOT COMP RETURN RETURN ANY MEASURED OR METERED ANALOG PARAMETER...

Page 73: ...13 14 15 16 17 18 19 20 21 22 23 24 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 1 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 Tx4 Rx4 Tx5 Rx5 PORT 5 PORT 4 E 4 Way Pad Mounted Switchgear 3ph LEA 1 3 P...

Page 74: ...Make sure that the first letter on the terminal strip corresponds to the slot location identified on the chassis silkscreen Terminal Connections NOTE NOTE When installing two lugs on one terminal both lugs must be right side up as shown in the picture below This is to ensure the adjacent lower terminal block does not interfere with the lug body Figure 2 21 Orient the Lugs Correctly Figure 2 22 Cor...

Page 75: ...pplications are available for the 850 relays As such it is not possible to present typical connections for all possible schemes The information in this section covers the important aspects of interconnections in the general areas of instrument transformer inputs other inputs outputs communications and grounding The figure below shows the rear terminal layout of the 850 Platform ...

Page 76: ... 17 18 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 1 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 Tx4 Rx4 Tx5 Rx5 PORT 5 PORT 4 E BASIC CO...

Page 77: ...escription DC Voltage input polarity 1 ve positive 2 ve negative 3 Ground SE Comms Basic Ethernet 1E 1P 3E 3A Comms Advanced Ethernet Terminal Description Terminal Description 1 IRIG B 1 IRIG B 2 IRIG B 2 IRIG B 3 RS485_1 3 RS485_1 4 RS485_1 4 RS485_1 5 RS485_1 COM 5 RS485_1 COM 6 RESERVED 6 RESERVED 7 RESERVED 7 RESERVED 8 optional RMIO COM 8 optional RMIO COM 9 optional RMIO 9 optional RMIO 10 o...

Page 78: ...onal I O Card L slot G G21 G20 G19 G24 G23 G22 RETURN RESERVED RESERVED SHIELD COMP HOT ANALOG OUTPUT 3 ANALOG OUTPUT 6 ANALOG OUTPUT 5 ANALOG OUTPUT 4 ANALOG OUTPUT 2 ANALOG OUTPUT 1 SHIELD RETURN ANALOG OUTPUT 7 ANALOG INPUT 2 ANALOG INPUT 3 ANALOG INPUT 1 ANALOG OUTPUTS ANALOG INPUTS RTD 894213A1 CDR DIGITAL INPUTS B9 C9 B8 C8 B7 C7 B6 C6 B5 C5 B4 C4 B3 C3 B2 C2 B1 C1 B12 C12 B11 C11 B10 C10 B1...

Page 79: ...24 G H23 G H22 DIGITAL INPUT 8 COMMON DIGITAL INPUT 10 DIGITAL INPUT 9 DIGITAL INPUT 7 COMMON COMMON DIGITAL OUTPUT 5 DIGITAL OUTPUT 4 DIGITAL OUTPUT 3 DIGITAL OUTPUT 2 DIGITAL OUTPUT 1 NO NC COMMON DIGITAL INPUT 1 COMMON COMMON THRESHOLD SETTING GROUP 2 THRESHOLD SET GP 1 THRESHOLD SET GP 1 G H9 G H8 G H7 G H6 G H5 G H4 G H3 G H2 G H1 G H12 G H11 G H10 G H15 G H14 G H13 G H18 G H17 G H16 COMMON C...

Page 80: ...g RETURN 850 D only 8 CT2_RETURN or CT Isg RETURN 9 VT1A IN 9 RESERVED 10 VT1A RETURN 10 RESERVED 11 VT1B IN 11 RESERVED 12 VT1B RETURN 12 RESERVED 13 VT1C IN 13 RESERVED 14 VT1C RETURN 14 RESERVED 15 VT1N IN 15 RESERVED 16 VT1N RETURN 16 RESERVED AC Inputs 1 X 3 Phase 1 5A CT 2 LEA 850 P Slot J L1 L5 AC Inputs 8 X 1 5A CT 850 P Slot K R1 R5 Terminal Description Terminal Description 1 CT1 PhA IN 1...

Page 81: ...out 9 53 mm 0 375 maximum diameter ring terminals 14 AWG to 22 AWG 2 1 mm2 to 0 3 mm2 Multiple wire termination with 9 53 mm 0 375 maximum diameter ring terminals Two ring terminals maximum per circuit Suggested wiring screw tightening torques are terminal strips A H tighten to 4 5 in lbs 0 5 N m and terminal blocks J K to 15 in lb 1 7 N m Figure 2 27 Fiber Connector Types S ST Analog Output Analo...

Page 82: ...o the switchgear Although the RMIO is internally shielded to minimize noise pickup and interference it should be mounted away from high current conductors or sources of strong magnetic fields Figure 2 28 RMIO unit showing 2 IO_G modules Figure 2 29 RMIO terminal identification with 4 IO_G modules Tx Rx IO_G IO_G RCU PSU P S U L N G Com Port Common B1 B2 B3 14 13 12 11 10 9 8 7 6 5 4 3 2 1 14 13 12...

Page 83: ...d input that can be connected to either a ground CT placed on the neutral from a Wye connected transformer winding or to a donut type CT measuring the zero sequence current from a grounded system The relay CTs are placed in a packet mounted to the chassis of the 850 relay There are no internal ground connections on the current inputs Current transformers with 1 to 12000 A primaries may be used CAU...

Page 84: ...th a Zero Sequence CT as source or in the neutral of wye connected source CTs The ground current input can be used to polarize both the neutral and sensitive ground directional elements When using the residual connection set the GROUND CT PRIMARY setpoint to a value equal to the PHASE CT PRIMARY setpoint The sensitive ground current input is intended for use either with a CT in a source neutral of...

Page 85: ...NSTALLATION ELECTRICAL INSTALLATION 850 FEEDER PROTECTION SYSTEM INSTRUCTION MANUAL 2 29 Figure 2 32 Sensitive Ground Inputs available for 850 E and 850 D 892774A2 cdr 8 Series J1 J2 J3 J4 J5 K7 J6 K8 K7 K8 K8 K7 ...

Page 86: ...oltages the zero sequence voltage V0 and neutral sensitive ground polarizing voltage V0 are zero Also with the Delta VT connection the phase neutral voltage cannot be measured and is not displayed Restricted Ground Fault Inputs Restricted Ground Fault protection also referred to as Restricted Earth Fault protection is often applied to transformers having grounded Wye windings to provide ground fau...

Page 87: ...hat ground fault current can be detected Twisted pair cabling on the Zero Sequence CT is recommended Figure 2 35 Zero Sequence Core Balance CT Installation J1 J2 J3 J4 J5 J6 J7 J8 CURRENT INPUTS PHASE A PHASE B PHASE C GROUND IA N IC IB IG N N N FEEDER TRANSFORMER 892775A1 cdr Ground connection to neutral must be on the source side UNSHIELDED CABLE LOAD A B C N G Ground outside CT Source LOAD SHIE...

Page 88: ...oes not match damage to the unit may occur All grounds MUST be connected for normal operation regardless of control power supply type For more details please refer to the Power Supply subsection located in the Introduction chapter CAUTION The relay should be connected directly to the ground bus using the shortest practical path A tinned copper braided shielding and bonding cable should be used As ...

Page 89: ... which the contact inputs detect a closed contact input is programmable as 17 V DC for 24 V sources 33 V DC for 48 V sources 84 V DC for 110 to 125 V sources and 166 V DC for 250 V sources Wet or Dry input signal types can be connected to contact input terminals as shown in the figure Wet and Dry Contact Input Wiring Examples Dry inputs use an internal 24V that is supplied by the 850 The voltage t...

Page 90: ...g In_1 Digital In_17 11 RELAY_4 RELAY_12 RELAY_20 11 RELAY_4 Analog In_2 Common 12 RELAY_4 RELAY_12 RELAY_20 12 RELAY_4 Analog In_3 24V 13 RELAY_5 RELAY_13 RELAY_21 13 Digital In_1 Analog In_4 ARC FLASH Sensor 1 Sensor 2 Sensor 3 Sensor 4 14 RELAY_5 RELAY_13 RELAY_21 14 Digital In_2 Return 15 RELAY_5 RELAY_13 RELAY_21 15 Digital In_3 Shield 16 RELAY_6 RELAY_14 RELAY_22 16 Digital In_4 Reserved 17 ...

Page 91: ...T G SLOT H Terminal SLOT F SLOT H 1 RELAY_1 RELAY_9 Digital In_15 1 RELAY_1 Digital In_8 2 RELAY_1 RELAY_9 Digital In_16 2 RELAY_1 Digital In_9 3 RELAY_1 RELAY_9 Digital In_17 3 RELAY_1 Digital In_10 4 RELAY_2 RELAY_10 Digital In_18 4 RELAY_2 Digital In_11 5 RELAY_2 RELAY_10 Digital In_19 5 RELAY_2 Digital In_12 6 RELAY_2 RELAY_10 Digital In_20 6 RELAY_2 Digital In_13 7 RELAY_3 RELAY_11 Digital In...

Page 92: ...9 8 RELAY_3 RELAY_14 Common 9 Digital In_35 Digital In_50 9 RELAY_3 RELAY_14 RELAY_21 10 Digital In_36 Digital In_51 10 RELAY_4 RELAY_14 RELAY_22 11 Digital In_37 Digital In_52 11 RELAY_4 Digital In_8 RELAY_23 12 Common Common 12 RELAY_4 Common Common 13 Digital In_38 Digital In_53 13 Digital In_1 Digital In_9 Digital In_18 14 Digital In_39 Digital In_54 14 Digital In_2 Common Digital In_19 15 Dig...

Page 93: ... source computer PLC SCADA system should have similar transient protection devices installed either internally or externally Ground the shield at one point only as shown in the figure above to avoid ground loops Correct polarity is also essential The 850 IEDs must be wired with all the positive terminals connected together and all the negative terminals connected together Each relay must be daisy ...

Page 94: ... amplitude modulated AM form The type of form is auto detected by the 850 relay Third party equipment is available for generating the IRIG B signal this equipment may use a GPS satellite system to obtain the time reference so that devices at different geographic locations can also be synchronized Figure 2 39 IRIG B connection GE MULTILIN 8 SERIES IRIG B RECEIVER TO OTHER DEVICES SHIELDED CABLE GPS...

Page 95: ... is 0 Basic Security If the relay is in the commissioning phase and you want to bypass authentication switch the Setpoint access setting on or assign it to a contact input Once the setting is on you have complete administrator access from the front panel If a contact input is chosen the access is also conditional on the activation of the respective contact input For more information on setpoint ac...

Page 96: ...eniently located on the panel is a group of 7 pushbuttons for Up Down value selection Enter Home Escape Help and Reset functions or a group of 11 including the Up Down Left Right buttons on the membrane faceplate The rugged and membrane faceplate includes 3 programmable function pushbuttons and 17 programmable LEDs The 10 Pushbutton Membrane faceplate includes 10 programmable function pushbuttons ...

Page 97: ...CES FRONT CONTROL PANEL INTERFACE 850 FEEDER PROTECTION SYSTEM INSTRUCTION MANUAL 3 3 Figure 3 2 Membrane Faceplate 3 pushbutton Figure 3 3 Rugged Faceplate The USB port is intended for connection to a portable computer ...

Page 98: ...under varied lighting conditions When the keypad and display are not being used system information is displayed after a user defined period of inactivity Pressing the Menu key during the display of the default message returns the display to the last message shown before the default message appeared Any Trip Alarm or Pickup is displayed immediately automatically overriding the default message ...

Page 99: ...t Reports Testing Output Relays Virtual Inputs Contact Inputs Arc Flash Virtual Outputs Communications Information Device Status PTP Status Clock Last Trip Data Flex States Summary Breakers Switches Autoreclose Summary Currents Voltages Frequency Harmonics Synchrocheck Power Energy Current Demand Thermal Capacity Power Demand Directional Power Wattmetric Gnd Flt Fast Underfrequency Arc Flash RTD M...

Page 100: ...Choosing each main menu item displays the corresponding sub menu Figure 3 5 Typical paging operation from the main menu There are two ways to navigate throughout the 850 menu using the pushbuttons corresponding to the soft tabs from the screen or by selecting the item from the list of items on the screen using the Up and Down pushbuttons to move the yellow highlighted line and pressing the pushbut...

Page 101: ... Pushbuttons Each Keypad pushbutton serves the following function The Home pushbutton is used to display the home screen and all screens defined under the Front Panel Screens menu as default screens The Help pushbutton is used to provide the Modbus address corresponding to the present location when in the Actual Values menu The Enter pushbutton has a dual function It is used to display a sub menu ...

Page 102: ...the previous menu This pushbutton can also be used to cancel a setpoint change The Reset pushbutton clears all latched LED indications target messages and latched output relays providing the conditions causing these events are not present To change or view an item on or from the 850 menus 1 Use the pushbuttons that correspond to the tabs Targets Status Metering Setpoints Records on the screen to s...

Page 103: ...hat represents the power system The single line diagram provided is pre configured to show Breaker status AC input connection System voltage Accompanying the single line diagram are typical metered values associated with the power system The single line diagram is configured as the default menu but this can be changed under Setpoints Device Front Panel Default Screen Figure 3 8 SLD and typical met...

Page 104: ...hen setpoint Connected under Setpoints System Breaker is set to OFF The parameters displayed in the Front panel screen example are as follows SLD Breaker Symbol Color Breaker Status Color Scheme Open Color Close Color Not Configured Unknown Open Color Close Color Not Configured Unknown Disconnected Red Open Red Green Orange Orange Orange Green Open Green Red Orange Orange Orange Parameter Input fo...

Page 105: ...n selected as Trip Alarm or Latched Alarm The RESET key is used to reset any latched LED indicator or Target Message once the condition has been cleared latched conditions can also be reset via the RESETTING menu Figure 3 10 LED numbering Figure 3 11 Typical LED Indicator Panel Some status indicators are common while some are feature specific which depend on the availability in the order code The ...

Page 106: ...ontact If both 52a and 52b contacts are open due to a breaker being racked out from the switchgear both the Breaker Open and Breaker Closed LED Indicators will be off The Event Cause indicators in the first column are described as follows Events Cause LEDs are turned ON or OFF by protection elements that have their respective target settings selected as either Self Reset or Latched If a protection...

Page 107: ...the operation of any protection control or monitoring element with function selected as Trip Alarm or Latched Alarm The RESET key is used to reset any latched LED indicator or Target Message once the condition has been cleared latched conditions can also be reset via the RESETTING menu Figure 3 12 LED numbering Figure 3 13 Typical LED Indicator Panel PB1 PB1 PB3 PB3 PB5 PB5 PB7 PB7 PB9 PB9 PB2 PB2...

Page 108: ...ust be initiated to allow the latch to be reset PICKUP This LED indicates that at least one element is picked up This indicator is never latched TEST MODE This LED indicates that the relay is in test mode MESSAGE This LED indicates the presence of target messages detected by the relay PHASE A FAULT This LED indicates that phase A of the Phase Time Overcurrent 1 function has operated PHASE B FAULT ...

Page 109: ... Active Target Icon Table 3 5 Breaker Health Icon Security State Security Icon Color User not logged in Icon is green and locked User logged in Icon is red and unlocked Description Identifies the active setpoint group Wifi State Wifi Icon Color Disabled Icon is grey and crossed by a red line Disconnected Grey Connecting Orange Connected Green Description When the target auto navigation setting is ...

Page 110: ...emoved the data being saved can also be lost Table 3 7 Local Mode Icon Description Indicates that a setting is being saved on the relay i e when changing one of relay settings Icon is ON relay is saving to flash memory Icon is OFF relay is not saving to flash memory Description Indicates that Local Mode is active During Local Mode the control for the breakers and disconnect switches can be perform...

Page 111: ...es back to the default screen the metering summary screen The target message interrupts the message timeout It overrides it The message timeout starts timing after each target message and if no more activity is recorded for the specified time the display goes back to the default screen Pressing a programmable pushbutton activates a new screen with a Target Message corresponding to the programmed P...

Page 112: ... Flashes the ALARM LED Displays Major Self test error with the error code as a target message Records the major self test failure in the Event Recorder NOTE NOTE The Critical Failure Relay Output Relay 8 is energized when the relay is in service and no major error is present Under both conditions the targets cannot be cleared if the error is still active Figure 3 15 Minor Errors Figure 3 16 Major ...

Page 113: ...id The product serial number doesn t match the product type Every 1 second Comm Alert 1 Communication error between CPU and Comms board Every 1 second Comm Alert 2 Every 1 second Comm Alert 3 Every 1 second FLASH Error The permanent storage memory has been corrupted Every 1 second SPI Error Communication error between CPU and LEDs Keypad or peripheral memory devices Every 1 second Invalid MAC Addr...

Page 114: ...g and check input signal level it may be less than specification If none of these apply contact the factory Version Mismatch CPU and Comms do not have the same revision on firmware Boot up and Every 1 second Ensure that both the CPU and Comms FW was uploaded during the upgrade process SelfTestFWUpdate The updating of the firmware failed Every 1 second Re try uploading firmware If the upload doesn ...

Page 115: ...Flash Messages Flash messages are warning error or general information messages displayed in response to pressing certain keys The factory default flash message time is 2 seconds Label Removal The 3 Pushbutton Rugged and Membrane front panels come with a label removal tool for removing the LED label and user programmable pushbutton label NOTE NOTE Templates for printing custom LED labels are avail...

Page 116: ...m the relay Move the tool inside until the tabs enter the pocket 3 Remove the tool with the LED label The following describes how to remove the user programmable pushbutton label from the 850 front panel 1 Slide the label tool under the user programmable pushbutton label as shown in the next image Make sure the bent tab is pointing away from the relay 2 Remove the tool and user programmable pushbu...

Page 117: ...s environment This section provides the necessary information to install EnerVista 8 Series Setup software upgrade the relay firmware and write and edit setting files The EnerVista 8 Series Setup software can run without a 850 connected to the computer In this case settings may be saved to a file for future use If a 850 is connected to a PC and communications are enabled the 850 can be programmed ...

Page 118: ...rVista software on the local PC 3 When installation is complete start the EnerVista Launchpad application 4 Click the IED Setup section of the LaunchPad toolbar 5 In the EnerVista Launchpad window click the Add Product button and select the 850 Protection System as shown below Select the Web option to ensure the most recent software release or select CD if you do not have a web connection then cli...

Page 119: ...oaded into the computer and the installation program automatically creates icons and adds the EnerVista 8 Series Setup software to the Windows start menu 9 The 850 device is added to the list of installed IEDs in the EnerVista Launchpad window as shown below If you are going to communicate from your computer to the 850 Relay using the USB port 10 Plug the USB cable into the USB port on the 850 Rel...

Page 120: ...ace type 14 Select the Read Order Code button Upgrading the Software The latest EnerVista software and firmware can be downloaded from https www gegridsolutions com After upgrading check the version number under Help About If the new version does not display try uninstalling the software and reinstalling the new versions ...

Page 121: ...hrough the front panel USB port of a 850 relay or through the Ethernet port The following window appears when the QuickConnect button is pressed As indicated by the window the Quick Connect feature can quickly connect the EnerVista 8 Series Setup software to a 850 front port if the USB is selected in the interface drop down list Select USB and press the Connect button Ethernet or WiFi can also be ...

Page 122: ...850 supports a maximum of 3 TCP IP sessions 1 Install and start the latest version of the EnerVista 8 Series Setup software available from the GE EnerVista CD or Website See the previous section for the installation procedure 2 Click on the Device Setup button to open the Device Setup window and click the Add Site button to define a new site 3 Enter the desired site name in the Site Name field If ...

Page 123: ... Communications menu 9 Click the Read Order Code button to connect to the 850 and upload the order code If a communications error occurs ensure that the Ethernet communication values correspond to the relay setting values 10 Click OK when the relay order code has been received The new device will be added to the Site List window or Online window located in the top left corner of the main EnerVista...

Page 124: ...s Records Maintenance 3 Expand the Setpoints Device Front Panel list item and double click on Display Properties or Default Screens to open the settings window as shown 4 The settings window opens with a corresponding status indicator on the lower left of the EnerVista 8 Series Setup window 5 If the status indicator is red verify that the serial USB or Ethernet cable is properly connected to the r...

Page 125: ...be used in on line mode relay connected to directly communicate with a relay Communicating relays are organized and grouped by communication interfaces and into sites Sites may contain any number of relays selected from the product series Entering Setpoints The System Setup page is used as an example to illustrate entering setpoints In this example we are changing the voltage sensing setpoints 1 E...

Page 126: ... 850 Click YES to accept any changes and exit the window Click Restore to retain previous values Click Default to restore Default values 7 For setpoints requiring an alphanumeric text string e g relay name the value may be entered directly within the setpoint value box NOTE NOTE When using Setpoint Groups an element from one group can be dragged and dropped on the same element in another group cop...

Page 127: ...he commissioned settings after inadvertent unauthorized or temporary setting changes are made after the settings default due to firmware upgrade or when the unit has to be replaced This section describes how to backup settings to a file and how to use that file to restore settings to the original relay or to a replacement relay Setpoints must be saved to a file on the local PC before performing an...

Page 128: ...e group of setpoint files Use the following procedure to add an existing file to the list 1 In the offline pane right click on Files and select the Add Existing Settings File item as shown 2 The Open dialog box is displayed prompting to select a previously saved setpoint file As for any other MS Windows application browse for the file to be added then click Open The new file and complete path will...

Page 129: ...ptions for the new setpoint file 3 For future reference enter some useful information in the Description box to facilitate the identification of the device and the purpose of the file 4 To select a file name and path for the new file click the button beside the File Name box 5 Select the file name and path to store the file or select any displayed file name to replace an existing file All 850 setp...

Page 130: ...ane select the saved setpoint file 5 From the main window menu bar select the Offline Edit Settings File Properties menu item and note the File Version of the setpoint file If this version is different from the Firmware Revision noted in step 2 select a New File Version that matches the Firmware Revision from the pull down menu 6 For example if the firmware revision is J0J08AA150 SFD Firmware Revi...

Page 131: ...line Print Device Information menu item If printing from a previously saved setpoints file select the Offline Print Settings File menu item 3 The Print Export Options dialog box appears Select Setpoints in the upper section and select either Include All Features for a complete list or Include Only Enabled Features for a list of only those features which are currently used in the filtering section ...

Page 132: ...pgraded since saving the setpoint file see Upgrading Setpoints Files to a New Revision for instructions on changing the revision number of a setpoint file The following procedure illustrates how to load setpoints from a file Before loading a setpoints file it must first be added to the 850 environment as described in the section Adding Setpoints Files to the Environment 1 Select the previously sav...

Page 133: ...ing 1 Create a default settings file 2 Write the default settings file to the relay 3 Delete all other files with the cid extension 4 Delete any other data files which can be in standard formats such as COMTRADE or csv You cannot directly erase the flash memory but all records and settings in that memory can be deleted Do this from the front panel or EnerVista software using RECORDS CLEAR RECORDS ...

Page 134: ... setpoint value field Configure and save the settings as required The Save Restore and Default buttons function the same as in the individual setting setup screens Attempting to enter and save a setting value which exceeds the range gives a warning dialog box note the value is not replaced with the maximum value of the setting Correct the setting value and save to proceed Example The Phase CT Prim...

Page 135: ...CHAPTER 3 INTERFACES SOFTWARE INTERFACE 850 FEEDER PROTECTION SYSTEM INSTRUCTION MANUAL 3 41 ...

Page 136: ...i interface is not allowed Note that uploading firmware to a relay having a Communications card must be done with Port 4 operation configured as independent FASTPATH Before upgrading firmware it is very important to save the current 850 settings to a file on your PC After the firmware has been upgraded it will be necessary to load this file back into the 850 Refer to Downloading and Saving Setpoin...

Page 137: ...lowing format The following screen appears Select YES to proceed 4 EnerVista 8 Series Setup software now prepares the 850 to receive the new firmware file The 850 front panel momentarily displays Upload Mode indicating that it is in upload mode 5 The following screen appears click YES to proceed with the firmware loading process J2 J08 A A 150 SFD File type Board Assembly Rev Code Type in Memory D...

Page 138: ...oot 2 upload is completed the EnerVista 8 Series Setup software requests the user reboot the relay After the Boot 1 upload is completed the EnerVista 8 Series Setup software again requests the user to reboot the relay CAUTION Make sure to reboot the relay first and then press the OK Not the other way around ...

Page 139: ... firmware the relay is not in service and requires setpoint programming To communicate with the relay the communication settings may have to be manually reprogrammed When communications is established the saved setpoints must be reloaded back into the relay See Loading Setpoints from a File for details Modbus addresses assigned to features settings and corresponding data items i e default values m...

Page 140: ...ed for the default home screen pages The 8 Series provides six 6 SLD pages Each page can have a combination of active and passive objects Status metering and control objects are active while the static images for bus generator motor transformer ground etc are passive objects Figure 3 20 SLD Page For optimum use the first SLD page can be used for the overall single line diagram and the subsequent p...

Page 141: ...of selectable breakers and disconnect switches The following figure shows the different symbols in the GE Standard style and IEC style If the switching element is tagged blocked or bypassed indicators with the letters T B and By appear on the lower right corner of the element Additionally the breaker switch name is displayed on top of the object NOTE NOTE The displayed breaker name is configured i...

Page 142: ...he status colors are reversed If the setting is used the breaker symbols automatically change to the Truck CB symbols The SLD assumes that if the Breaker Racked In Racked Out input is used any setting other than Off the appropriate Truck CB symbol will be used The following figure shows the orientation available for the control objects The default position for the control objects is 0 degrees Orie...

Page 143: ...he screen If the diagram shows a circle with no color it means the assigned input is low If it shows a circle with red color in it the assigned input is high The following figure shows an example of Reclose Blocked signal in both On and Off state Figure 3 25 Reclose Blocked signal In addition Remote Breaker status objects are added for GE and IEC style Remote breaker status allows monitoring of th...

Page 144: ...avigation selection must be made for the breaker or switch object by pressing the Enter key After selecting the desired switch or breaker control operations can then be carried out on the selected switch or breaker The 8 Series allows local opening closing tagging blocking and bypassing Front panel control is only allowed when the relay is in Local Mode Navigation The Single Line Diagram can be ac...

Page 145: ...lighter will change to maroon indicating that the breaker or switch is selected By default the control pushbuttons are programmed for Tag Block and Bypass For each control action a flash message is displayed Refer to section Local Control Mode breakers and switches Figure 3 27 Active element selection with flash message NOTE NOTE Browsing and selection is allowed only when the relay is in Local Mo...

Page 146: ...ters By may appear below the element on SLD NOTE NOTE If breaker is selected and relay status is changed to Out of Service the breaker control actions such as tag blocked bypass and open close are blocked The breaker may remain in the selected state but no action can be executed Once the selected breaker or switch is tagged a letter T appears below the associated element Similarly for blocking let...

Page 147: ...n be plotted for reference to customize the operating curve The Blue colored curve in the picture is a reference curve It can be Extremely Inverse Definite Time etc The Trip Reset and Operate Times in the tables and curves work interactively i e changing the table value affects the curve shape and vice versa Save Configured Trip Times Export Configured Trip Times to a CSV file Load Trip Times from...

Page 148: ...ds menu item to open the Transient Recorder Viewer window Click on Trigger Waveform to trigger a waveform capture To view the captured waveforms click on the Launch Viewer button A detailed Waveform Capture window appears as shown below Click on the Save button to save the selected waveform to the local PC A new window appears requesting the file name and path One file is saved as a COMTRADE file ...

Page 149: ... bar press the Preference button to open the COMTRADE Setup page in order to change the graph attributes Display graph values at the corresponding cursor line Cursor lines are identified by their colors FILE NAME Indicates the file name and complete path if saved CURSOR LINES To move lines locate the mouse pointer over the cursor line then click and drag the cursor to the new position TRIGGER LINE...

Page 150: ...nd select other options as required by checking the appropriate boxes Click OK to store these graph attributes and to close the window The Waveform Capture window reappears based on the selected graph attributes To view a vector graph of the quantities contained in the waveform capture press the View Phasors button to display the following window Preference Button ...

Page 151: ...CHAPTER 3 INTERFACES SOFTWARE INTERFACE 850 FEEDER PROTECTION SYSTEM INSTRUCTION MANUAL 3 57 ...

Page 152: ...ection Summary Screen allows the user to view the output relay R3 R4 assignments for the elements modify the output relay assignments for the elements view the Function status for the elements navigate to the respective element screen on a button click With the EnerVista 8 Series Setup software running and communications established select the Setpoints Protection Summary menu item to open the Pro...

Page 153: ...CHAPTER 3 INTERFACES SOFTWARE INTERFACE 850 FEEDER PROTECTION SYSTEM INSTRUCTION MANUAL 3 59 ...

Page 154: ... the import is complete the results are displayed in an interactive results window Convert SR 750 760 Files EnerVista 8 Series Setup software version supports conversion of SR 750 760 files to 850 settings files The conversion can only be initialized with EnerVista from the Offline New Settings File commands located in the taskbar 1 In the menu taskbar click on Offline and select the New Settings ...

Page 155: ...verted to 32 bit using the latest 350 EnerVista Setup before doing the 850 conversion 7 Click OK to begin the conversion and complete the process Once this step is completed the new file with a complete path is added to the EnerVista 8 Series Setup software environment Conversion Summary Report At the end of the conversion process the results are summarized in a conversion report The report is fou...

Page 156: ...es settings file Original Name setting name of the input file Original Value setting value of the input file CAUTION All other settings available not shown in the conversion report in the 8 Series file are set to default and must be verified before putting the relay into service Status Icons The status icon shows the conversion results Manual configuration required Successful conversion Value is n...

Page 157: ...tions that describe in detail the setpoints found on that menu NOTE NOTE Use the path provided to access the menus from the front panel and from the EnerVista 8 Series Setup software NOTE NOTE Certain named settings allow custom names Do not create 13 character long names using the largest width characters i e WWWWWWWWWWWWW Doing so can cause the last 3 characters to overlap the setting name when ...

Page 158: ...n A computer however makes entry much easier Files can be stored and downloaded for fast error free entry when a computer is used To facilitate this process the GE EnerVista CD with the EnerVista 8 Series Setup software is supplied with the relay The relay leaves the factory with setpoints programmed to default values and it is these values that are shown in all the setpoint message illustrations ...

Page 159: ...be steady lit after the conditions are cleared The LED ALARM can be reset by issuing reset command If the FUNCTION setpoint is selected as Configurable the feature is fully operational but outputs are not driving any action such as output relay 1 Alarm LED or anything else Operands from this element must be programmed to a desirable action which may be as simple as the auxiliary output relay from ...

Page 160: ... PKP level before the time for operation is reached If Timed reset is selected the time to reset is calculated based on the reset equation for the selected inverse curve BLOCK The ELEMENT_NAME BLOCK setpoint selects an operand from the list of FlexLogic operands which when active blocks the feature from running EVENTS The ELEMENT_NAME EVENTS setpoint can be set to Enabled or Disabled If set to Ena...

Page 161: ...pickup dropout setpoint shown directly above Element operation of the detector is controlled by the signal entering the RUN inset The measurement comparison can only be performed if a logic 1 is provided at the RUN input The relationship between a setpoint and input parameter is indicated by the following symbols less than greater than etc Pickup and Dropout Time Delays Shown as a block with indic...

Page 162: ...abbreviations are used in the setpoints pages A amperes kA kiloamperes V volts kV kilovolts kW kilowatts kvar kilovars kVA kilo volt amperes AUX auxiliary COM Comms communications CT current transformer GND ground Hz Hertz MAX maximum MIN minimum SEC s seconds UV undervoltage OV overvoltage VT voltage transformer Ctrl control Hr hr hour O L overload ...

Page 163: ...ON MANUAL 5 1 850 Feeder Protection System Chapter 5 Device System Input and Output Setpoints GE Grid Solutions Device System InputandOutputSetpoints This chapter describes the Device System Input and Output setpoint menu settings in detail ...

Page 164: ...are typically used or settings that are important to configure There are two configuration modes supported Simplified and Regular In Simplified configuration mode some of the advanced functions features or a few settings under a function are hidden or made read only greyed out In Regular configuration mode all function features and setpoints of the device are editable and nothing is hidden or grey...

Page 165: ...n mode When in Simplified configuration mode the home icon color changes to green When in Regular mode the home icon color stays blue Example 1 More about the setting items view control The Phase TOC 1 function in Regular mode has 14 setpoints made available to edit read write In the case of Simplified mode this function has only 6 out of the 14 setpoints made available to edit read write 5 setpoi...

Page 166: ...s functions are hidden or the values are read only to enhance user experience with minimum setpoint changes Clock Real time Clock Path Setpoints Device Real Time Clock The 850 is capable of receiving a time reference from several time sources in addition to its own internal clock for the purpose of time stamping events transient recorders and other occurrences within the relay The accuracy of the ...

Page 167: ...an the time indicated in the message The setting can be used to approximately compensate for the delay Since the relay is not aware of network switching that dynamically changes the amount of uncompensated delay there is no setting that always completely corrects for uncompensated delay A setting can be chosen that reduces worst case error to half of the range between minimum and maximum uncompens...

Page 168: ... domain number zero The setting applies to all of the relay s PTP capable ports PTP VLAN PRIORITY Range 0 to 7 Default 4 The setting selects the value of the priority field in the 802 1Q VLAN tag in request messages issued by the relay s peer delay mechanism In compliance with PP Power Profile the default VLAN priority is 4 but it is recommended that in accordance with PTP it be set to 7 Depending...

Page 169: ...VENTS Range Disabled Enabled Default Enabled IRIG B Range Disabled Enabled Default Disabled DAYLIGHT SAVINGS TIME Range Disabled Enabled Default Disabled DST START MONTH Range January to December all months Default Not Set DST START DAY Range SUN to SAT all days of the week Default Not Set DST START WEEK Range 1st 2nd 3rd 4th Last Default Not Set DST START HOUR Range 0 to 23 Default 2 DST END MONT...

Page 170: ...E 850 Feeder Protection System relays only support SNTP unicast It may take 2 3 minutes for the relay to synchronize with the SNTP server Path Setpoints Device Real Time Clock SNTP SNTP FUNCTION Range Disabled Enabled Default Disabled SNTP SERVER IP ADDRESS Range Standard IP Address Format Default 0 0 0 0 SNTP UDP PORT NUMBER Range 0 to 65535 in steps of 1 Default 123 SNTP SERVER 2 IP ADDRESS Rang...

Page 171: ...ngth Passwords must contain characters from three of the following four categories English uppercase characters A through Z English lowercase characters a through z Base 10 digits 0 through 9 Non alphabetic characters for example PASSWORD RECOVERY PROCEDURE In the event of losing all passwords the 850 can be reset to factory defaults by following the procedure below 1 Send an email to the customer...

Page 172: ...ettings 5 The Observer does not have password associated with it So there is no need to show it in the list of password changing roles LOAD FACTORY DEFAULTS The Administrator role can change this setting This setting resets all the settings communication and Security passwords and all records ACCESS LOCKOUT Access lockout is the number of failed authentications the default is 3 and the maximum is ...

Page 173: ... to the Administrator The Require PW for Reset Key is used for the purpose of bypassing security If this setting is enabled and an alarm or trip occurs on the relay the Reset button is not available to the Operator Only the Administrator can reset the relay with their password REQUIRE PW FOR D T CHANGE The date time can be set by any role if this setting is disabled If this setting is enabled the ...

Page 174: ...e supported in the feature Under the CyberSentry option the 8 Series supports SSH secure tunneling of MODBUS communications between itself and EnerVista setup software SSH secure tunneling is supported on Ethernet only If bypass security is set through setpoint access the communications over Ethernet is not encrypted ROLE ACCESS MAP The detailed role access map is defined in the following figure F...

Page 175: ...sword If the wrong password is entered an Authentication Failed message is displayed If the maximum failed authentications occur the Account Blocked message is displayed The Observer is the default choice and it does not require a password Setpoints Data Capture Security Real Time Clock Level 1 Level 2 Level 3 Level 4 Device Communications Security Change Administrator Password Change Operator Pas...

Page 176: ... authentication After switching on the device authentication the Administrator gains write access to all the other settings without the need to logout and login again LOAD FACTORY DEFAULTS Range Yes No Default No An Administrator role is able to change this setting This resets all the settings communication and security passwords and all records ACCESS LOCKOUT Range 0 99 Default 3 The Access locko...

Page 177: ...ting may be assigned to a digital input When the digital input is activated the user gets Administrator access to the front panel FACTORY SERVICE MODE Range Disabled Enabled Default Disabled When the feature is enabled the Factory role is accessible and the device may go into factory service mode The setting may be changed only by an Administrator The default value is Disabled NOTE NOTE The factor...

Page 178: ...rVista notifies the user that this operation is allowed only for Administrators e g via a pop up window The EnerVista Login Screen has two radio buttons to choose between device and server authentication If server authentication is chosen the screen provides User Name and Password fields If device authentication is chosen the User Name field changes to a drop down menu If device authentication is ...

Page 179: ...TRUCTION MANUAL 5 17 RADIUS SETTINGS The following are settings that need to be configured through EnerVista in order to set up communication with a Radius server on 850 For configuring the RADIUS server itself consult the RADIUS documentation An example is provided see Communications Guide ...

Page 180: ...sion requests 0 9999 10 sec Administrat or Retries Number of retries before giving up 0 9999 3 Administrat or Radius Authenticati on Shared Secret Shared Secret used in authentication It is only displayed as asterisks This setting must meet the CyberSentry password requirements See password section for requireme nts 245 characters N A Administrat or Confirm Radius Authenticati on Shared Secret Con...

Page 181: ... standard hardware configurations This includes USB RS485 fiber optics etc Modbus is a single master multiple slave type of protocol suitable for a multi drop configuration The 850 is always a Modbus slave with a valid slave address range 1 to 254 DATA FRAME FORMAT AND DATA RATE One data frame of an asynchronous transmission to or from an 850 typically consists of 1 start bit 8 data bits and 1 sto...

Page 182: ...se conflicts resulting in errors occur Generally each device added to the link uses the next higher address starting at 1 MODBUS TCP PORT NUMBER Range 1 to 65535 in steps of 1 Default 502 The TCP port number used with Modbus over Ethernet Note that the maximum number of simultaneous Modbus connections supported over Ethernet is three for an 850 without the communications card five for an 850 with ...

Page 183: ...hrough the AP The WiFi module integrated on the 8 Series products conforms to IEEE 802 11b g n standards The 8 Series devices operate in infrastructure mode Security is optional but enabled by default and it is advisable that it is left on as wireless traffic is very susceptible to cyber attacks The security technology used is WPA2 Wireless Protected Access version 2 based on the IEEE 802 11i stan...

Page 184: ...ess The setting specifies the address of the access point AP which the 8 Series device uses for communicating over WiFi WiFi Security The setting enables WiFi security If set to None there is no security and all traffic is open By default WiFi Security is set to WPA2 PSK WiFi SSID The SSID is the public name of a wireless network All of the wireless devices on a WLAN must use the same SSID in orde...

Page 185: ...as follows Passphrase provided with the 8 Series relay 2 The Access Point Settings are given below 3 Any 8 Series relays in range are automatically connect to the configured Access Point 4 Start EnerVista on a PC and use the Discover function all relays within range appear and are populated in EnerVista for initial configuration and commissioning 5 Once the relay is configured change the 8 Series ...

Page 186: ...nt Ethernet Ports The following communication offerings are available Base Offering Modes 10 100 Mbps One Port RJ45 Protocol Modbus TCP Communications Card Option C 2x Copper RJ45 Ports Modes 10 100 MB Two Ports RJ45 with this option both enabled ports are on the communications card the Ethernet port located on the base CPU is disabled Protocols Modbus TCP DNP 3 0 IEC 60870 5 104 IEC 61850 GOOSE I...

Page 187: ...4 address in standard IPV4 format NOTE NOTE The setting is valid on port 1 if the optional communications card is not present The setting is valid on port 5 if port 4 s OPERATION is set to INDEPENDENT PRT1 4 5 SUBNET IP MASK Range Standard IPV4 mask format Default 255 255 255 0 Port 1 Default 0 0 0 0 Port 4 5 This setting specifies the IPv4 mask associated with the corresponding port IP address PR...

Page 188: ...eiving devices 850 process the first frame received and discard the duplicate through a link redundancy entity LRE or similar service that operates below layer 2 Aside from LRE PRP uses conventional Ethernet hardware but both ports must know they are in PRP Ports of PRP devices operating with the same Internet Protocol IP addresses for traffic that uses IP Management protocols such as Address Reso...

Page 189: ...is configured for any of the entries 1 to 6 that entry becomes a static route and it must meet all the rules listed in the following section under Important Notes Rule 4 To configure the default route enter a default gateway address A default gateway address configured must be validated against Rule 5 the next rule Deleting a route Rule 5 Routes are deleted by replacing the route destination with ...

Page 190: ...face on 10 1 1 0 24 and the IP address of this interface is 10 1 1 1 Port 5 IP address 10 1 2 2 connects to LAN 10 1 2 0 24 and to EnerVista setup program through Router 2 Router 2 has an interface on 10 1 2 0 24 and the IP address of this interface is 10 1 2 1 Configuration Network addresses PRT54IP ADDRESS 10 1 1 2PRT4 SUBNET IP MASK 255 255 255 0PRT5 IP ADDRESS 10 1 2 2PRT5 SUBNET IP MASK 255 2...

Page 191: ...in steps of 1 Default 2000 NOTE NOTE DNP Channel 1 Port will take the DNP TCP UDP Port 1 and DNP Client Address 1 to allow reject connections The same relation is used by channel 2 DNP Unsol Resp Function Range Enabled Disabled Default Disabled This setting will take effect for Ethernet communication only if the main card is present or a comms card is available in the device This setting enables d...

Page 192: ...lt variation refers to the variation response when variation 0 is requested and or in class 0 1 2 or 3 scans TCP Connection Timeout Range 10 to 300 s in steps of 1 Default 120 s This setting specifies a time delay for the detection of dead network TCP connections If there is no data traffic on a DNP TCP connection for greater than the time specified by this setting the connection will be aborted b...

Page 193: ...rom the default for each individual DNP analog input point Whenever power is removed and re applied to the 850 the new deadbands are in effect The binary output points for the DNP protocol or the CSC CDC points for IEC 60870 5 104 protocol can be configured to a maximum of 16 points The data source for each point is user programmable and can be configured by assigning FlexLogic operands The menu p...

Page 194: ...reeze and clear noack 22 assign class Static Variation reported when variation 0 requested 1 32 Bit Binary Counter with Flag Change Event Variation reported when variation 0 requested 1 32 Bit Counter Change Event without time Change Event Buffer Size 10 Default Class for all points 3 FROZEN COUNTERS Static Steady State Object Number 21 Change Event Object Number 23 Request Function Codes supporte...

Page 195: ...espectively Otherwise static object requests sent with qualifiers 00 01 06 07 or 08 are responded with qualifiers 00 or 01 For change event objects qualifiers 17 or 28 are always responded Cold restarts are implemented the same as warm restarts the 850 is not restarted but the DNP process is restarted IEC 60870 5 104 The IEC 60870 5 104 communications protocol is supported on Ethernet ports 4 and ...

Page 196: ...04 Channels sub menu information is shown below Commands are executed over the Binary Outputs The first 8 Binary Outputs are configured to receive Select Operate Commands and the next 8 Binary Outputs are configured to receive Direct Execute Commands The IEC104 CHANNEL 1 PORT and IEC104 CHANNEL 2 PORT settings select the communications port assigned to the IEC104 protocol for each channel When thi...

Page 197: ...d at the first Off value Since IEC 60870 5 103 point lists must be in one continuous block any points assigned after the first Off point are ignored IEC 61850 The optional communications processor supports both the IEC61850 GOOSE and IEC 61850 MMS Server service as per IEC 61850 standard Ed 2 The GOOSE messaging service provides the 850 unit the ability to Publish Subscribe Digital Input Status an...

Page 198: ...ive order code option and saves the file to the path selected previously Read Device Settings The menu option reads all the settings from the relay by TFTP and creates an 850 file with extension CID The created CID file consists of two sections A private section where all non IEC 61850 settings are available and a public section in which IEC 61850 related settings are implemented FASTPATH When cre...

Page 199: ...he path selected previously IEC 61850 Configurator Details The IEC61850 Configurator allows editing of all sections of the IEC61850 CID and ICD file No other operations can be performed in the EnerVista 8 Series Setup software if the IEC 61850 Configurator is open Close the IEC61850 session to perform other operations in the EnerVista software The IEC 61850 configurator consists of five sections I...

Page 200: ...AME Range 13 Alphanumeric Characters Default BSG3 The Remote Modbus Device currently supports the Powell BriteSpot Thermal Monitoring device BSG3 The 27 analog and 27 digital operands that are available in the device are supported and are pre configured in the default settings file The data defined for BSG3 are described in the 8 Series Protection Relay Platform Communications guide IP ADDRESS Ran...

Page 201: ...point provides a selection of samples per cycle for representing the waveform The waveform records can be viewed using the 8 series PC program TRIGGER MODE Range Overwrite Protected Default Overwrite When Overwrite setting is selected the new records overwrite the old ones meaning the relay will always keep the newest records as per the selected number of records In Protected mode the relay will k...

Page 202: ...latile memory where the information is retained upon a relay control power loss The data logger can be configured with a few channels over a long period of time or with larger number of channels for a shorter period of time The relay automatically partitions the available memory between the channels in use The selection of the rate for logging data also affects the duration of recorded data The da...

Page 203: ...r space can be monitored to produce an alarm when the logged data occupies 80 of the data logger storage space Target message and operand Data Logger ALRM is generated at this time TRIGGER Range Off Any FlexLogic operand Default Off This setting selects the signal used to trigger the start of a new data logger record Any FlexLogic operand can be used as a trigger source The Triggered setting only ...

Page 204: ...irst protection pass from the time interval selected under setpoint Rate In Max mode the data logger records the maximum protection pass value of the selected flexanalog parameter from all protection pass values from the time interval selected under setpoint Rate In Min mode the data logger records the minimum protection pass value of the selected flexanalog parameter from all protection pass valu...

Page 205: ...s Setup software The file names are numbered sequentially to show which file is older than the other The captured data also includes the fault type and the distance to the fault location as well as the reclose shot number when applicable The relay allows locating faults including ground faults from delta connected VTs In this case the missing zero sequence voltage is substituted either by the exte...

Page 206: ...he date and time of the report The distance to fault calculations are initiated by this signal UNITS OF LENGTH Range km Miles Default km This setting provides the units of measurement in kilometers or miles LENGTH OF FEEDER Range 0 1 to 99 9 km Miles in steps of 0 1 km Miles Default 0 1 km Miles This setting provides the total length of the feeder in kilometers or miles as selected by the UNITS OF...

Page 207: ... with the protected line feeder disconnected The method is accurate only if this setting matches perfectly the actual system impedance during the fault If the system exhibits too much variability this approach is questionable and the fault location results for single line to ground faults should be trusted accordingly It should be kept in mind that grounding points in the vicinity of the installat...

Page 208: ...s 3 programmable function pushbuttons and 12 programmable LEDs The 10 PB Membrane faceplate includes 10 programmable function pushbuttons and 12 programmable LEDs Please refer to Front Control Panel Interface FASTPATH The USB port on the Front Panel is intended for connection to a portable PC Programmable LEDs Path Setpoints Device Programmable LEDs LED TRIP Range Off Any FlexLogic operand Default...

Page 209: ...r Latched the LED stays latched upon dropping out of the FlexLogic operand Table 5 5 Default LED setpoints for 3 Pushbutton Rugged and Membrane Front Panels Table 5 6 Default LED setpoints for 10 Pushbutton Membrane Front Panel Name Color Trigger Type LED1 See Note 1 LED 2 LED3 LED4 LED5 TEST MODE Orange Testing ON Self Reset LED6 MESSAGE Orange Active Target Self Reset LED7 LOCAL MODE Orange Loca...

Page 210: ...ront Panel LED7 PHASE A FAULT Orange Ph TOC 1 OP A Self Reset LED8 PHASE B FAULT Green Ph TOC 1 OP B Self Reset LED9 PHASE C FAULT Red Ph TOC 1 OP C Self Reset LED10 GROUND FAULT Green GND TOC 1 OP Self Reset LED11 50P INST OC Green Ph IOC 1 OP Self Reset LED12 AR LOCKOUT Orange AR1 Lockout Self Reset LED13 See Note 2 LED14 LED15 PB 1 Orange PB 1 On Open Self Reset LED16 PB 2 Orange PB 2 On Close ...

Page 211: ...ushbutton and are used to program specific actions Each pushbutton has an associated LED indicator By default this indicator displays the present status of the corresponding pushbutton ON or OFF This can be changed by programming the LED Trigger setting in the Programmable LED settings menu The activation and deactivation of user programmable pushbuttons is dependent on whether latched or self res...

Page 212: ...er and displayed as Target Messages In latched mode user defined messages can also be associated with each pushbutton and displayed when the pushbutton is ON or changing to OFF Path Setpoints Device Programmable PBs Pushbutton 1 X FUNCTION Range Self reset Latched Disabled Default Self reset This setting selects the characteristic of the pushbutton If set to Disabled the pushbutton is not active a...

Page 213: ...g After the flash time has expired the default message or other active target message is displayed The instantaneous Reset of the flash message will be executed if any relay front panel button is pressed or if any new target or message becomes active The PUSHBTN 1 OFF TEXT setting is linked to PUSHBUTTON 1 OFF operand and will be displayed in conjunction with PUSHBTN 1 ID only if the pushbutton el...

Page 214: ... Delay 1 0s 1 0s 1 0s Lock Off Off Off Dropout Time 0 0s 0 0s 0 0s Events Enabled Enabled Enabled PB1 PB2 PB3 PB4 PB5 PB6 PB7 PB8 PB9 PB10 Function Self Reset Self Reset Latched Latched Latched Latched Self Reset Latched Self Reset Latched ID Text Open Close Reclose Enabled Ground Trip Enabled Remote Enabled Hot Line Tag Demand Reset Alternate Settings Trigger Transient Recorder PB Lock ON Text PB...

Page 215: ... Latch Autoreset Function Disabled Enabled AND FLEXLOGIC OPERAND Pushbutton 1 ON t PKP 0 OR 60 ms 0 TIMER AND AND 200 ms 0 TIMER OR OR SETPOINT Drop Out Timer t RST 0 SETPOINT Auto Reset Delay SETPOINT AND OR Latched Self Reset Latched AND FLEXLOGIC OPERAND Pushbutton 1 OFF FLEXLOGIC OPERAND Pushbutton 1 ON SETPOINT Flash Message Time t RST 0 SETPOINT PB 1 ID Text LCD MESSAGE PB 1 OFF Text XXXXXXX...

Page 216: ...hen the Local Mode is OFF PB6 HOT LINE TAG Default None NOTE NOTE The Hot Line Tag pushbutton is not programmed to any specific feature by default A User can manually apply it to the various features mentioned in the examples below The Hot line tag is used when a maintenance crew works on a live circuit Under such conditions it is desirable to have sensitive settings for protection and automatic r...

Page 217: ...ce The Trigger Transient Recorder pushbutton provides a pulse to the transient recorder function Upon pressing this button an oscillography record is captured according to the settings configured for the transient recorder PB10 PB LOCK Default Setpoints Device Front Panel Programmable PBs Pushbutton X Lock The PB Lock button disables all the configurable pushbuttons on the front panel except PB10 ...

Page 218: ...bel If other pages have active alarms the button will show a flashing label Path Setpoints Device Front Panel Annunciator PAGE LAYOUT Range 3x3 2x2 Default 3x3 This setting selects the grid layout of the annunciator pages The default 3x3 grid layout provides 4 annunciator pages and 2x2 provides 9 pages AUTO NAVIGATION Range Disabled Enabled Default Enabled This setting when enabled automatically n...

Page 219: ...knowledged or reset the background stops flashing If the operand becomes inactive the indicator returns to its default colors The behavior of these modes conforms to ISA 18 1 1979 R2004 standard A 4 5 6 self reset and M 6 latched Figure 5 11 Self Reset Mode Figure 5 12 Latched Mode When any annunciator page is displayed with an alarm condition the navigation keys can be used to select an indicator...

Page 220: ...on pressed first takes the priority The Tab Pushbutton settings can be accessed from Setpoints Device Front Panel Tab Pushbuttons Tab PB1 The Tab Pushbutton control can be executed by navigating to Status Summary Tab Pushbuttons By default the summary page is shown to quickly glance at the active tab pushbuttons The individual pages can then be accessed from the summary page Each Tab Pushbutton as...

Page 221: ...te the operand appears on the target message until the pushbutton is pressed again to change it to the OFF state ID TEXT Range Up to 13 alphanumeric characters Default Tab PB 1 or Tab PB X This setting specifies the 13 character line of the user programmable message and is intended to provide the ID information of the pushbutton This text is used to describe the pushbutton in the FlexLogic operand...

Page 222: ...tton operation will require the pushbutton to be pressed a minimum of 100ms AUTORESET Range Disabled Enabled Default Disabled This setting enables the Tab Pushbutton Autoreset feature The setting is applicable only if the pushbutton is in Latched mode AUTORESET DELAY Range 0 2 to 600 0 s in steps of 0 1 s Default 1 0 s This setting specifies the time delay for automatic Reset of the pushbutton whe...

Page 223: ...eriod of time the relay automatically reverts to its default message screen The inactivity time is modified via this setting to ensure messages remain on the screen long enough during programming The target message interrupts the message timeout overriding it The message timeout starts timing after each target message and if no more activity is recorded for the specified time the display goes back...

Page 224: ...ion Default SLD for Default Screen 1 only Off for Default Screen 2 3 only This setpoint enables the user to input up to 3 default screens from a list of screens Home Screens The home screens allow the selection of a set of pages as home pages max 10 Multiple home pages are configured and navigated to by pressing the home button repeatedly Navigate through all available home screens by repeatedly p...

Page 225: ...wable settings are only ON and OFF FlexLogic operands cannot be used Resetting Some events can be programmed to latch the faceplate LED event indicators and target message on the display Depending on the application some auxiliary output relays can be programmed to latch after the triggering event is cleared Once set the latching mechanism holds all the latched indicators messages and auxiliary ou...

Page 226: ...AY Range Celsius Fahrenheit Default Celsius Selects engineering unit of temperature display VALIDATE CANBUS IO Range NO YES When the relay is booted the 8 Series relay enumerates the installed IO cards automatically When the relay is commissioned and the Validate CANBUS IO command is set to Yes the current auto detect value is saved to non volatile memory This value is then used to configure all d...

Page 227: ...e currents A B and C and one input for ground residual current all in slot J The 850 D Dual Feeder Protection System has two three phase currents and one input for ground residual current in slots J and K respectively The 850 P Multi Feeder Protection System supports up to four three phase currents in slots J and K The single AC input from the card inserted in slot K for 850 D and 850 E is used to...

Page 228: ...e minimum value above which metering functions NOTE NOTE The Setpoints System Current Sensing CT Bank 3 K2 option is available in 850 with order code option R1 R5 for Phase Current Slot K NOTE NOTE The Setpoints System Current Sensing CT Bank 4 JK option is available in 850 with order code option P1 P5 for Ground Currents Voltage Sensing Traditional VT The Voltage Sensing menu provides the setup f...

Page 229: ...relay auxiliary VT AUX VT SECONDARY Range 10 0 to 240 0 V in steps of 0 1 V Default 120 0 V Select the output secondary voltage of the aux VT connected to the aux VT input from bank J2 AUX VT RATIO Range 1 00 to 5000 00 in steps of 0 01 Default 1 00 Select the aux VT ratio to match the ratio of the VT connected to the aux VT input from bank J2 FASTPATH The nominal PHASE VT SECONDARY and the AUX VT...

Page 230: ...the output secondary voltage defined on the voltage sensor connected to the LEA inputs LEA RATED PHASE ANGLE Range 0 0 to 359 9 in steps of 0 1 Default 0 0 Lag Enter the phase shift of secondary voltage related to the primary voltage Due to the transformation algorithms used for some sensors the secondary side keeps a shifted angle with regards to the primary voltage The Phase Angle Shift at nomin...

Page 231: ...age 2V LEA Ratio 2000 LEA Sensor 1 2 3 Mag Correction 1 050 Calculated Secondary Voltage Measured Secondary Voltage x LEA Sensor 1 2 3 Mag Correction 2V x 1 050 2 1 V secondary Calculated Primary Voltage LEA Ratio x Calculated Secondary Voltage 2000 x 2 1 4200 V primary Power System Path Setpoints System Power System NOMINAL FREQUENCY Range 60 Hz 50 Hz Default 60 Hz The power system NOMINAL FREQUE...

Page 232: ...connected the breaker state is shown to be neither open nor closed Path Setpoints System Breakers Breaker X NAME Range Up to 13 alphanumeric characters Default BKR1 CONTACT INPUT 52a Range Off Any FlexLogic operand Default Off Selects the Contact Input connected to the breaker auxiliary contact 52a CONTACT INPUT 52b Range Off Any FlexLogic operand Default Off Selects the Contact Input connected to...

Page 233: ...reaker LEDs Figure 5 15 Breaker Connected Disconnected Racked In Racked Out Detection 52a Contact Status 52b Contact Status Breaker Status Off On BKR Opened On Off BKR Closed On On BKR Unknown State Off Off BKR Unknown State SETPOINT BKR 1 CONNECTED FlexLogic operand 1 Off 0 FlexLogic operand status AND OR FLEXLOGIC OPERANDS BKR 1 Disconnected FLEXLOGIC OPERANDS BKR 1 Connected 894207A1 cdr ...

Page 234: ...nd 1 Off 0 FlexLogic operand BKR 52a state FlexLogic operand BKR 52b status AND AND XOR 30 ms S R PB LED BREAKER CLOSED PB LED BREAKER OPENED LED ALARM LATCH OR AND OR OR RESET command AND AND FLEXLOGIC OPERANDS BKR 1 Closed FLEXLOGIC OPERANDS BKR 1 Opened FLEXLOGIC OPERANDS BKR 1 Unkwn State OR At least one contact programmed to Trip and Close output relays TARGET MESSAGE BKR 1 NOT CONFIGURED FLE...

Page 235: ...th contact inputs 89a and 89b show normal states on the relay Path Setpoints System Switches Switch 1 9 NAME Range 13 alphanumeric characters Default SW 1 Assign a user defined name to the disconnect switch This name is used in the SLD flash messages related to disconnect switch 1 and the event recorder CONTACT INPUT 89a Range Off Any FlexLogic operand Default Off Select an operand usually NO aux ...

Page 236: ... for details on output relay selection availability EVENTS Range Disabled Enabled Default Enabled This setting disables or enables the disconnect switch operation events TARGETS Range Disabled Self Reset Latched Default Enabled This setting disables or enables the disconnect switch operation Targets The logic for Switch configuration and the Open and Close status is shown in the following tables T...

Page 237: ...d 1 Off 0 FlexLogic operand SW1 89a state FlexLogic operand SW1 89b state AND AND XOR PKP S R LED ALARM LATCH OR AND OR OR AND AND FLEXLOGIC OPERANDS SW1 CLOSED FLEXLOGIC OPERANDS SW1 OPENED FLEXLOGIC OPERANDS SW1 DISCREPANCY OR FLEXLOGIC OPERANDS SW1 NOT CONFIGURED SETPOINT ALARM DELAY t Positive Edge SETPOINT RESET ALARM FlexLogic operand Off 0 FLEXLOGIC OPERANDS SW1 INTERMITTENT FLEXLOGIC OPERA...

Page 238: ...int settings for entering times to reset and operate 40 points for reset from 0 to 0 98 times the Pickup value and 80 for operate from 1 03 to 20 times the Pickup This data is converted into two continuous curves by linear interpolation between data points Path Setpoints System FlexCurves NOTE NOTE Use the EnerVista 8 Series Setup software program to select design or modify any of the FlexCurves T...

Page 239: ... ENERVISTA 8 SERIES SETUP SOFTWARE The EnerVista 8 Series Setup software allows for easy configuration and management of FlexCurves and their associated data points Prospective FlexCurves can be configured from a selection of standard curves to provide the best approximate fit then specific data points can be edited afterwards Alternately curve data can be imported from a specified file csv format...

Page 240: ...ing characteristic is effectively defined For current multiples lower than the intersection point the curve dictates the operating time otherwise the MRT does An information message appears when attempting to apply an MRT shorter than the minimum curve time High Current Time Sets a pickup multiple from which point onwards the operating time is fixed This is normally only required at higher current...

Page 241: ...30 ms for Pickup multiples exceeding 8 times Pickup Figure 5 20 Composite Recloser Curve with HCT Enabled Configuring a composite curve with an increase in operating time at increased Pickup multiples is not allowed If this is attempted the EnerVista 8 Series Setup software generates an error message and discards the proposed changes STANDARD RECLOSER CURVES The standard recloser curves are displa...

Page 242: ...21 Recloser Curves GE101 TO GE106 Figure 5 22 Recloser Curves GE113 GE120 GE138 AND GE142 GE104 1 1 2 1 5 2 2 5 3 4 5 6 7 8 9 10 12 15 20 0 01 0 02 0 05 0 1 0 2 0 5 1 2 CURRENT multiple of pickup TIME sec GE101 GE102 GE103 GE106 GE105 842723A1 CDR 1 1 2 1 5 2 2 5 3 4 5 6 7 8 9 10 12 15 20 0 05 0 1 0 2 0 5 1 2 5 10 20 50 ...

Page 243: ...137 GE140 GE151 AND GE201 Figure 5 24 Recloser Curves GE131 GE141 GE152 AND GE200 1 1 2 1 5 2 2 5 3 4 5 6 7 8 9 10 12 15 20 0 5 1 2 5 10 20 50 CURRENT multiple of pickup TIME sec GE134 GE151 GE140 GE137 GE201 842730A1 CDR 1 1 2 1 5 2 2 5 3 4 5 6 7 8 9 10 12 15 20 2 5 10 20 50 CURRENT multiple of pickup TIME sec GE131 GE200 GE152 GE141 842728A1 CDR ...

Page 244: ... Recloser Curves GE116 GE117 GE118 GE132 GE136 AND GE139 842729A1 CDR 1 1 2 1 5 2 2 5 3 4 5 6 7 8 9 10 12 15 20 0 01 0 02 0 05 0 1 0 2 0 5 1 2 5 10 20 50 CURRENT multiple of pickup TIME sec GE133 GE163 GE162 GE161 GE165 GE164 842726A1 CDR 1 1 2 1 5 2 2 5 3 4 5 6 7 8 9 10 12 15 20 0 01 0 02 0 05 0 1 0 2 0 5 1 2 5 10 20 CURRENT multiple of pickup TIME sec GE116 GE132 GE118 GE117 GE139 GE136 ...

Page 245: ... GE121 AND GE122 Figure 5 28 Recloser Curves GE119 GE135 AND GE202 842724A1 CDR 1 1 2 1 5 2 2 5 3 4 5 6 7 8 9 10 12 15 20 0 01 0 02 0 05 0 1 0 2 0 5 1 2 5 10 20 CURRENT multiple of pickup TIME sec GE121 GE114 GE112 GE122 GE107 GE115 GE111 842727A1 CDR 1 1 2 1 5 2 2 5 3 4 5 6 7 8 9 10 12 15 20 0 2 0 5 1 2 5 10 20 50 CURRENT multiple of pickup TIME sec GE119 GE202 GE135 ...

Page 246: ... Inputs Figure 5 29 Inputs Display Hierarchy Level 1 Level 2 Level 3 Level 4 Setpoints Device System Inputs Outputs Protection Monitoring Control FlexLogic Data Capture Virtual Inputs Contact Inputs IEC 61850 is selected in the order code Remote Inputs is only available when Analog Inputs Testing Remote Inputs ...

Page 247: ...Logic operand will be asserted at the time of a new protection pass A time stamp of the first sample in the sequence that validates the new state is used when logging the change of the Contact Input into the Event Recorder mark no 1 in the diagram Protection and control elements as well as FlexLogic equations and timers are executed eight times in a power system cycle The protection pass duration ...

Page 248: ...s The Contact Inputs menu contains configuration settings for each Contact Input as well as voltage threshold for all Contact Inputs Path Setpoints Inputs Contact Inputs CI Voltage Threshold Depending on the order code Voltage Threshold value can be configured for all the Contact Inputs Slot F G H with order code A or M or F or for each group of Contact Inputs Slot F G H with order code B or K and...

Page 249: ...s which Contact Inputs are available then displays settings for only these inputs VOLTAGE THRESHOLD X Range 17 33 84 166 VDC Default 33 VDC The setting determines the minimum voltage required to detect a closed Contact Input The value is selected according to the following criteria 17 for 24 V sources 33 for 48 V sources 84 for 110 to 125 V sources and 166 for 250 V sources FASTPATH For internal w...

Page 250: ...ath Setpoints Inputs Virtual Inputs Virtual Input FUNCTION Range Disabled Enabled Default Disabled If this setting is set to Disabled the input will be forced to OFF logic 0 regardless of any attempt to alter the input If set to Enabled the input operates as shown on the logic diagram below and generates output FlexLogic operands in response to received input signals and the applied settings NAME ...

Page 251: ...UCTION MANUAL 5 89 Figure 5 31 Virtual Inputs Scheme Logic SETPOINTS VIRTUAL INPUT 1 FUNCTION Disabled 0 Enabled 1 AND SETPOINTS VIRTUAL INPUT 1 TYPE Latched Self Reset AND AND Virtual Input 1 to ON 1 Virtual Input 1 to OFF 0 S LATCH Reset Dominant R FlexLogic Operands VI 1 ON OR 892705A1 cdr ...

Page 252: ...ratio has been met NOTE NOTE The connected analog input is still read and displayed in METERING ANALOG INPUTS if the trip function or alarm function is set to Disabled and the Analog Input is not Disabled Path Setpoints Inputs Analog Inputs Analog Input 1 X Settings FUNCTION Range Disabled Enabled Default Disabled This setting enables or disables the Analog Input function NAME Range Any combinatio...

Page 253: ... Default 20 This setpoint provides the trip pickup level in the engineering units defined in the setting TRIP DROPOUT RATIO Range 2 to 20 in steps of 1 Default 5 This setting represents the variation of pickup value in percentage of pickup at which the element will effectively drop out The drop out ratio is defined as follows Drop Out pickup pickup dropout ratio 100 when TRIP TYPE is Over Drop Out...

Page 254: ...PE is Under For example if the pickup level is 5000 µA ALARM TYPE is set to Over and DROPOUT RATIO set to 10 the actual dropout will be 4500 µA Conversely if the ALARM TYPE is Under with the same dropout ratio the actual dropout will be 5500 µA ALARM PICKUP DELAY Range 0 to 600 s in steps of 1 s Default 2 This setpoint will operate the element if the alarm pickup condition is maintained for a long...

Page 255: ... Do Not Operate Operate Anlg Ip 1 ALARM OP AND AND OR LATCH S R RESET Command LED Alarm FLEXLOGIC OPERANDS Anlg Ip 1 TRIP PKP SETPOINT Output Relay Do Not Operate Operate Anlg Ip 1TRIP OP Operate Output Relay 1 TRIP LED TRIP OR AND ANALOG INPUT Measured Signal SETPOINT Enabled 1 FUNCTION Disabled 0 SETPOINT MIN VALUE NAME UNITS RANGE MAX VALUE SETPOINT TRIP TYPE OVER UNDER Dropout Ratio VALUE PKP ...

Page 256: ...ting in remote devices Remote input 1 must be programmed to replicate the logic state of a specific signal from a specific remote device for local use The programming is performed by the three settings shown in the Virtual Inputs section Path Setpoints Inputs Remote Inputs NAME Range Up to 13 Alphanumeric Characters Default VI 1 An alphanumeric name may be assigned to a Remote Input for diagnostic...

Page 257: ...oil monitoring and it is selected as the default for closing the breaker The 850 provides a selection of any available output relay for closing the breaker under the Breaker Close Relay Select setpoint The output relay selected for closing the breaker can be triggered directly from some relay functions designated to perform the breaker close action If Relay 2 is not selected as the Close relay it ...

Page 258: ...ITY The output relays can be used for many different purposes such as opening and closing breakers contactors switches control of primary equipment such as motor transformer generator for blocking or supervision purposes for interlocking ect To avoid using the same output relay for two totally different actions the 8series relays checks the assignments of these output relays and prevents their usa...

Page 259: ... energized output relays changes to de energized If an output relay was used to maintain a running process or to hold a motor contactor while energized the process or the motor contactor will be interrupted To keep the process uninterrupted the following connection scheme can be applied Place selected Assigned Non assigned Output Relays Available Hidden Output Relays in Setpoints Protection Contro...

Page 260: ...Relay 1 Trip output thus extending its pulse width This is useful for those applications where the 52 contacts reporting the breaker state are faster than the 52 contacts that are responsible for interrupting the coil current BLOCK Range Disabled Any FlexLogic operand Default Disabled This setting defines a Block to the Trip output relay When the selected input is asserted the Trip output relay is...

Page 261: ... and no breaker open status detected this timer will start on the raising edge of a pulse issued from either of the two timers and will produce positive pulse upon time expiry When breaker open status is detected and no trip is present the output relay will stay reset AND TYPE SETPOINT Pulsed Self Reset RESET command For 850 only Latched Relay Ready 1 OPERATE SETTING FL Operand Off 0 For 850 869 a...

Page 262: ...ed value is Relay 2 Output Relay 2 functions as a Close relay The default value is Off The description below applies to both Relay 2 Close functionality For the Relay 2 auxiliary functionality see the Figure 5 37 Auxiliary Relays generic logic in the next section Path Setpoints Outputs Output Relays Aux Relay 2 Close NOTE NOTE The output relays selected under the Breaker menu for breaker closing a...

Page 263: ...f a pulse issued from either of the two timers and will produce positive pulse upon time expiry This timer starts on the falling edge of a pulse and issues a positive pulse upon time expiry This timer starts on the falling edge of a pulse and issues a positive pulse upon time expiry For 850 only For 850 only Relay Ready 1 OPERATE SETTING FL Operand Off 0 OR AND SEAL IN TIME SETPOINT t AND TYPE SET...

Page 264: ... Seal In Time will be reapplied to the last pulse resulting in prolonged time for which the output will stay energized before going to de energized mode BLOCK Range Disabled Any FlexLogic operand Default Disabled This setting defines a block to the Auxiliary output relay When the selected input is asserted the Aux relay is blocked OPERATE Range Off Any FlexLogic operand Default Off This setpoint p...

Page 265: ...elay is shown below Figure 5 38 Critical Failure Relay 8 Scheme 892828A3 cdr AND SETPOINT TYPE Latched Self Reset AND AND OR AND OR RESET Command Operate Aux Output Relay Pulsed AND SETPOINT OPERATE Off 0 SEAL IN TIME SETPOINT t This setpoint is displayed only upon Pulsed output type selection OR Operation from Protection Control or Monitoring Elements Relay Ready 1 Relay Ready 1 OR BLOCK SETTING ...

Page 266: ...rogrammed to do so Virtual outputs are resolved in each protection pass via the evaluation of FlexLogic equations For example if Virtual Output 1 is the trip signal from FlexLogic and the trip relay is used to signal events the settings would be programmed as follows Virtual Output 1 NAME Trip Virtual Output 1 Events Enabled Path Setpoints Outputs Virtual Outputs Virtual Outputs 1 32 NAME Range up...

Page 267: ...utputs Channel Characteristics Path Setpoints Outputs Analog Outputs Analog Output 1 X FUNCTION Range Disabled Enabled Default Disabled RANGE Range 0 to 1 mA 0 to 5 mA 0 to 10 mA 0 to 20 mA or 4 to 20 mA Default 0 to 1 mA This setting provides the selection for the analog output range PARAMETER Range Off any Flex Analog Parameter Default Off This setting selects the measured parameter to control t...

Page 268: ...5 106 850 FEEDER PROTECTION SYSTEM INSTRUCTION MANUAL OUTPUTS CHAPTER 5 DEVICE SYSTEM INPUT AND OUTPUT SETPOINTS ...

Page 269: ...epending on the relay order code Current Elements Inverse Time Overcurrent Curves Percent of Load To Trip Phase Time Overcurrent Protection 51P Phase Instantaneous Overcurrent Protection 50P Phase Directional Overcurrent Protection 67P Neutral Time Overcurrent Protection 51N Neutral Instantaneous Overcurrent Protection 50N Setpoints Device System Inputs Outputs Protection Monitoring Control FlexLo...

Page 270: ...otection 51_2 Negative Sequence Instantaneous Overcurrent Protection 50_2 Negative Sequence Directional Overcurrent Protection 67_2 Broken Conductor Load Encroachment Undercurrent 37 Thermal Overload 49 Voltage Elements Undervoltage Curves Phase Undervoltage Protection 27P Timed Undervoltage Protection 27T UV Reactive Power 27Q Auxiliary Undervoltage 27X Phase Overvoltage Protection 59P Auxiliary ...

Page 271: ...n may require changing the time overcurrent characteristics of particular elements under different conditions For manual closing or picking up a cold load a different time current characteristic can be produced by increasing the pickup current value In the 850 relay the pickup current can be raised between autoreclose shots Setpoints Device System Inputs Outputs Protection Monitoring Control FlexL...

Page 272: ...ty has reached 100 a Time Overcurrent element will operate If less than 100 energy capacity is accumulated in this variable and the current falls below the dropout threshold of 97 to 98 of the Pickup value the variable must be reduced Two types of this resetting operation are available Instantaneous and Timed The Instantaneous selection is intended for applications with other relays such as most s...

Page 273: ...4 0 90 727 38 087 14 587 8 007 5 187 3 710 2 837 2 277 1 897 1 626 6 0 136 090 57 130 21 880 12 010 7 780 5 564 4 255 3 416 2 845 2 439 8 0 181 454 76 174 29 174 16 014 10 374 7 419 5 674 4 555 3 794 3 252 10 0 226 817 95 217 36 467 20 017 12 967 9 274 7 092 5 693 4 742 4 065 IEEE VERY INVERSE 0 5 8 090 3 514 1 471 0 899 0 654 0 526 0 450 0 401 0 368 0 345 1 0 16 179 7 028 2 942 1 798 1 308 1 051 ...

Page 274: ...4 1 325 0 537 0 341 0 260 0 216 0 189 0 170 0 156 0 146 2 0 6 268 2 650 1 074 0 682 0 520 0 432 0 378 0 340 0 312 0 291 4 0 12 537 5 301 2 148 1 365 1 040 0 864 0 755 0 680 0 625 0 583 6 0 18 805 7 951 3 221 2 047 1 559 1 297 1 133 1 020 0 937 0 874 8 0 25 073 10 602 4 295 2 730 2 079 1 729 1 510 1 360 1 250 1 165 10 0 31 341 13 252 5 369 3 412 2 599 2 161 1 888 1 700 1 562 1 457 ANSI NORMALLY INV...

Page 275: ...149 0 10 1 719 1 003 0 630 0 498 0 428 0 384 0 353 0 330 0 312 0 297 0 20 3 439 2 006 1 260 0 996 0 856 0 767 0 706 0 659 0 623 0 594 0 40 6 878 4 012 2 521 1 992 1 712 1 535 1 411 1 319 1 247 1 188 0 60 10 317 6 017 3 781 2 988 2 568 2 302 2 117 1 978 1 870 1 782 0 80 13 755 8 023 5 042 3 984 3 424 3 070 2 822 2 637 2 493 2 376 1 00 17 194 10 029 6 302 4 980 4 280 3 837 3 528 3 297 3 116 2 971 IE...

Page 276: ... 223 0 711 0 445 0 351 0 301 0 269 0 247 0 231 0 218 0 207 0 60 1 835 1 067 0 668 0 526 0 451 0 404 0 371 0 346 0 327 0 311 0 80 2 446 1 423 0 890 0 702 0 602 0 538 0 494 0 461 0 435 0 415 1 00 3 058 1 778 1 113 0 877 0 752 0 673 0 618 0 576 0 544 0 518 MULTIPLIER TDM CURRENT I Ipickup 1 5 2 0 3 0 4 0 5 0 6 0 7 0 8 0 9 0 10 0 IAC CURVE SHAPE A B C D E tr IAC Extremely Inverse 0 0040 0 6379 0 6200 ...

Page 277: ...9 0 532 0 443 0 392 0 360 0 337 0 320 0 307 0 297 2 0 2 310 1 499 1 064 0 885 0 784 0 719 0 674 0 640 0 614 0 594 4 0 4 621 2 997 2 128 1 770 1 569 1 439 1 348 1 280 1 229 1 188 6 0 6 931 4 496 3 192 2 656 2 353 2 158 2 022 1 921 1 843 1 781 8 0 9 242 5 995 4 256 3 541 3 138 2 878 2 695 2 561 2 457 2 375 10 0 11 552 7 494 5 320 4 426 3 922 3 597 3 369 3 201 3 072 2 969 IAC SHORT INVERSE 0 5 0 072 ...

Page 278: ...reset time in seconds assuming energy capacity is 100 and RESET is Timed 10 00 444 44 250 00 111 11 62 50 40 00 27 78 20 41 15 63 123 5 10 00 100 00 4444 44 2500 00 1111 1 625 00 400 00 277 78 204 08 156 25 123 46 100 00 600 00 26666 7 15000 0 6666 7 3750 0 2400 0 1666 7 1224 5 937 50 740 74 600 00 MULTIPLIER TDM CURRENT I Ipickup 1 5 2 0 3 0 4 0 5 0 6 0 7 0 8 0 9 0 10 0 MULTIPLIER TDM CURRENT I I...

Page 279: ...ream downstream coordination and during certain conditions such as manual closing and Maintenance The settings of this function are applied to each of the three phases to produce Pickup and Trip flags per phase There is no intentional dead band when the current is above the Pickup level However the Pickup accuracy is guaranteed within the current input accuracy of 1 5 above the set PKP value The T...

Page 280: ...reset is calculated based on the reset equation for the selected inverse curve DIRECTION Range Disabled Forward Ph Dir OC 1 4 FWD Reverse Ph Dir OC 1 4 REV Default Disabled VOLTAGE RESTRAINT Range Disabled Enabled Default Disabled This setting enables or disables the Voltage Restraint function for the TOC element When set to Enabled this feature lowers the Pickup value of each individual Phase Tim...

Page 281: ...input bank The default bank names can be changed in Setpoints System Current Sensing Name VT Bank Name BLOCK Range Off Any FlexLogic operand Default Off OUTPUT RELAY X For details see Common Setpoints EVENTS Range Enabled Disabled Default Enabled TARGETS Range Self reset Latched Disabled Default Self reset 0 1 0 2 0 3 0 4 0 5 0 6 0 7 0 8 0 9 1 0 0 1 0 2 0 3 0 4 0 5 0 6 0 7 0 8 0 9 1 0 0 892784A1 C...

Page 282: ...hase TOC 1 OP B Phase TOC 1 OP A FlexLogic Operands Phase TOC 1 PKP Phase TOC 1 PKP C Phase TOC 1 PKP B Phase TOC 1 PKP A SETPOINTS INPUT Phasor RMS RESET From Cold Load Pickup TOC Pickup Raise From Autoreclose TOC Pickup Raise SETPOINTS OUTPUT RELAYS Do Not Operate Operate LED TRIP Set Dominant From Manual Close Blocking TOC Pickup Raise RUN Calculate Voltage Restraint Multiplier SETPOINT VOTAGE ...

Page 283: ...the measured current drops below 97 98 of the Pickup value before the time for operation is reached Path Setpoints Protection Group1 6 Current Phase IOC 1 X FUNCTION Range Disabled Trip Alarm Latched Alarm Configurable Default Disabled SIGNAL INPUT Range Dependant upon the order code Default CT Bank 1 J1 dependant on order code This setting provides the selection for the current input bank The def...

Page 284: ...P OR OR LED ALARM RESET Command AND S R LATCH Configurable Phase IOC 1 OP Phase IOC 1 OP A Phase IOC 1 OP B Phase IOC 1 OP C FlexLogic Operands Phase IOC 1 PKP Phase IOC 1 PKP A Phase IOC 1 PKP B Phase IOC 1 PKP C FlexLogic Operands SETPOINTS OUTPUT RELAYS Do Not Operate Operate t RST t RST t RST PICKUP DELAY LED TRIP Set Dominant Ph A Reverse from Phase Directional OC element From Manual Close Bl...

Page 285: ...To increase security for three phase faults very close to the VTs used to measure the polarizing voltage a voltage memory feature is incorporated This feature remembers the measurement of the polarizing voltage 3 cycles back from the moment the voltage collapsed below the polarizing voltage threshold and uses it to determine direction The voltage memory remains valid for one second after the volta...

Page 286: ...ting is based on VT accuracy REV WHEN V MEM EXP Range No Yes Default No The setting is used to select the required operation upon expiration of voltage memory When set to Yes the directional element output value is forced to Reverse when voltage memory expires when set to No the directional element is Forward when voltage memory expires BLOCK Range Off Any FlexLogic operand Default Off EVENTS Rang...

Page 287: ...0 05 x CT AND OR ACTUAL VALUES Ia Seq ABC Seq ACB Vbc Vcb SETPOINT REV WHEN V MEM EXP No Yes SETPOINT POLARIZING V TRESHOLD Vact if V V minimum Vmem if V Vminimum V V minimum MEMORY TIMER 1 cycle 1 sec AND AND PHASE B LOGIC SIMILAR TO PHASE A PHASE C LOGIC SIMILAR TO PHASE A Ph Dir OC REV A FLEXLOGIC OPERANDS Ph Dir OC REV B FLEXLOGIC OPERANDS Ph Dir OC REV C FLEXLOGIC OPERANDS To phase TOC IOC el...

Page 288: ...election for the current input bank The default bank names can be changed in Setpoints System Current Sensing Name CT Bank Name INPUT Range Phasor RMS Default Phasor This selection defines the method of processing of the current signal It could be Root Mean Square RMS or Fundamental Phasor Magnitude PICKUP Range 0 050 to 30 000 x CT in steps of 0 001 x CT Default 1 000 x CT CURVE Range IEEE Extrem...

Page 289: ...selected the neutral TOC element will reset instantaneously providing the current drops below 97 98 of the Neutral TOC PKP level before the time for operation is reached DIRECTION Range Disabled Forward Ntrl Dir OC 1 4 FWD Reverse Ntrl Dir OC 1 4 REV Default Disabled BLOCK Range Off Any FlexLogic operand Default Off OUTPUT RELAY X For details see Common Setpoints EVENTS Range Enabled Disabled Defa...

Page 290: ...ed Alarm AND RESET Neutral current In Calculated as a sum of phase currents SETPOINTS BLOCK Off 0 From Autoreclose per shot settings From Cold Load Pickup LED ALARM RESET Command AND S R LATCH SETPOINTS Do Not Operate Operate OUTPUT RELAYS SETPOINTS INPUT Phasor RMS Configurable Ntrl TOC 1 PKP FLEXLOGIC OPERANDS Ntrl TOC 1 OP FLEXLOGIC OPERANDS DIRECTION Direction from Neutral Directional OC eleme...

Page 291: ... depends on how test currents are injected into the relay single phase injection Iop 0 9375 I_injected three phase pure zero sequence injection Iop 3 I_injected The settings of this function are applied to the neutral current to produce Pickup and Trip flags The Neutral IOC Pickup flag is asserted when the neutral current is above the PKP value The Neutral IOC Operate flag is asserted if the eleme...

Page 292: ... CURRENT ELEMENTS CHAPTER 6 PROTECTION SETPOINTS BLOCK Range Off Any FlexLogic operand Default Off OUTPUT RELAY X For details see Common Setpoints EVENTS Range Enabled Disabled Default Enabled TARGETS Range Self reset Latched Disabled Default Self reset ...

Page 293: ...tral IOC source AND AND SETPOINT FUNCTION Disabled 0 Trip Alarm Latched Alarm PICKUP DELAY SETPOINTS t PKP From Autoreclose per shot settings LED ALARM RESET Command AND S R LATCH LED PICKUP SETPOINTS Do Not Operate Operate OUTPUT RELAYS DIRECTION Phasor DROPOUT DELAY t RST Configurable Ntrl IOC 1 PKP FLEXLOGIC OPERANDS Ntrl IOC 1 OP FLEXLOGIC OPERANDS Set Dominant Direction from Neutral Direction...

Page 294: ...ents during double line and three phase faults The positive sequence restraint must be considered when testing for Pickup accuracy and response time multiple of Pickup The operating quantity depends on the way the test currents are injected into the relay single phase injection Iop 1 K Iinjected three phase pure zero sequence injection Iop 3 Iinjected The positive sequence restraint is removed for...

Page 295: ... discrimination bringing more security to element operation The forward looking function is designed to be more secure as compared to the reverse looking function and should therefore be used for the tripping direction The reverse looking function is designed to be faster as compared to the forward looking function and should be used for the blocking direction This allows better protection coordin...

Page 296: ...rrent measured on the ground current input The ground CT must be connected between the ground and neutral point of an adequate source of ground current The ground current must be greater than 0 05 x CT to be validated as a polarizing signal If the polarizing signal is not valid neither forward nor reverse indication is given For a choice of current polarizing it is recommended that the polarizing ...

Page 297: ...ection FORWARD PICKUP Range 0 050 to 30 000 x CT in steps of 0 001 x CT Default 0 050 x CT This setting defines the Pickup level for the overcurrent unit of the element in the forward direction When selecting this setting it must be kept in mind that the design uses a positive sequence restraint technique for the Calculated 3I0 mode of operation REVERSE LIMIT ANGLE Range 40 to 90 in steps of 1 Def...

Page 298: ...TRAL DIR OC POS SEQ RESTRAINT Ntrl Dir OC FWD Ntrl Dir OC REV Disabled 0 Measured VX Voltage Calculated V_0 Current Ground Crt IG Zero Seq Crt I_0 Dual NOTE 1 CURRENT POLARIZING IS POSSIBLE ONLY IN RELAYS WITH THE GROUND CURRENT INPUTS CONNECTED TO AN ADEQUATE CURRENT POLARIZING SOURCE 2 POSITIVE SEQUENCE RESTRAINT IS NOT APPLIED WHEN I_1 IS BELOW 0 8 x CT Off 0 Enabled 1 AND AND AND AND AND AND A...

Page 299: ...OC 1 X FUNCTION Range Disabled Trip Alarm Latched Alarm Configurable Default Disabled SIGNAL INPUT Range dependant upon the order code Default CT Bank 1 J1 This setting provides the selection for the current input bank The default bank names can be changed in Setpoints System Current Sensing Name CT Bank Name INPUT Range Phasor RMS Default Phasor PICKUP Range 0 050 to 30 000 x CT in steps of 0 001...

Page 300: ...2 850 FEEDER PROTECTION SYSTEM INSTRUCTION MANUAL CURRENT ELEMENTS CHAPTER 6 PROTECTION SETPOINTS EVENTS Range Enabled Disabled Default Enabled TARGETS Range Self reset Latched Disabled Default Self reset ...

Page 301: ... TRIP Alarm OR OR Adjust PKP AND Latched Alarm AND RESET Ground current Ig From Ground CT SETPOINTS BLOCK Off 0 From Autoreclose per shot settings From Cold Load Pickup LED ALARM RESET Command AND S R LATCH SETPOINTS Do Not Operate Operate RELAYS SETPOINTS INPUT Phasor RMS Configurable Ground TOC 1 PKP FLEXLOGIC OPERANDS Ground TOC 1 OP FLEXLOGIC OPERANDS DIRECTION Direction from Ground Directiona...

Page 302: ...7 to 98 of the Pickup value Path Setpoints Protection Group 1 6 Current Ground IOC 1 X FUNCTION Range Disabled Trip Alarm Latched Alarm Configurable Default Disabled SIGNAL INPUT Range dependant upon the order code Default CT Bank 1 J1 This setting provides the selection for the current input bank The default bank names can be changed in Setpoints System Current Sensing Name CT Bank Name PICKUP Ra...

Page 303: ...R OR From Cold Load Pickup From Ground CT AND AND SETPOINT FUNCTION Disabled 0 Trip Alarm Latched Alarm PICKUP DELAY SETPOINTS t PKP From Autoreclose per shot settings LED ALARM RESET Command AND S R LATCH LED PICKUP SETPOINTS Do Not Operate Operate RELAYS DIRECTION DROPOUT DELAY t RST Configurable Ground IOC 1 PKP FLEXLOGIC OPERANDS Ground IOC 1 OP FLEXLOGIC OPERANDS Set Dominant Direction from G...

Page 304: ... showing the voltage polarized phase angle comparator characteristics for a phase A to ground fault with ECA 90 element characteristic angle centerline of operating characteristic FWD LA 80 forward limit angle the angular limit with the ECA for operation REV LA 80 reverse limit angle the angular limit with the ECA for operation The element incorporates a current reversal logic if the reverse direc...

Page 305: ...Disabled Enabled Default Disabled SIGNAL INPUT Range dependant upon the order code Default CT Bank 1 J1 This setting provides the selection for the current input bank The default bank names can be changed in Setpoints System Current Sensing Name CT Bank Name 827805X1 CDR VAG reference VBG VCG Ig line Ig line ECA line ECA line LA LA LA LA ECA FWD LA line FWD Operating Region REV Operating Region FW...

Page 306: ...s maintained irrespective of the fault location NOTE NOTE When signal input is J1 in the ground directional element Current Input is J1 CT ground current and Polarizing current input is K1 CT ground current When signal input is K1 for the dual feeder 850 D Current Input is K1 CT ground current and Polarizing current input is J1 CT ground current If Dual polarizing mode is selected the element perf...

Page 307: ...p level for the overcurrent unit of the element in the forward direction REVERSE LIMIT ANGLE Range 40 to 90 in steps of 1 Default 90 This setting defines a symmetrical in both directions from the ECA limit angle for the reverse direction REVERSE PICKUP Range 0 050 to 30 000 x CT in steps of 0 001 x CT Default 0 050 x CT This setting defines the Pickup level for the overcurrent unit of the element ...

Page 308: ...d Dir OC FWD Gnd Dir OC REV Disabled 0 Measured VX Voltage Calculated V _ 0 Current Ground Crt Ig K1 CT Crt Ipol Dual NOTE CURRENT POLARIZING IS POSSIBLE ONLY IN RELAYS WITH THE GROUND CURRENT INPUTS CONNECTED TO AN ADEQUATE CURRENT POLARIZING SOURCE Off 0 Enabled 1 AND AND AND AND AND AND AND OR OR OR OR Ipol 0 05 xCT Ig PICKUP Ig PICKUP Voltage Polarization Current Polarization 3V_ 0 3I_ 0 FWD F...

Page 309: ...fault 1 000 x CT This setting sets the sensitive ground overcurrent pickup level specified as a multiplier of the nominal CT current For example a PKP setting of 0 9 x CT with 300 5 CT translates into 270A primary current CURVE Range IEEE Extremely Very Moderately Inverse ANSI Extremely Very Normally Moderately Inverse IEC A B C and Short Inverse IAC Extremely Very Inverse Short Inverse I2t I4t Fl...

Page 310: ...itive Ground Directional OC which must be enabled and configured according to the directionality criteria of the feeder currents BLOCK Range Off Any FlexLogic operand Default Off The Sensitive Ground TOC is blocked when the selected operand is asserted OUTPUT RELAY X For details see Common Setpoints EVENTS Range Enabled Disabled Default Enabled The selection of the Enabled setting enables the even...

Page 311: ...ED PICKUP LED TRIP Alarm OR OR Adjust PKP AND Latched Alarm AND RESET Sens Ground current Isg From Sensitive Ground CT SETPOINTS BLOCK Off 0 From Cold Load Pickup LED ALARM RESET Command AND S R LATCH SETPOINTS Do Not Operate Operate OUTPUT RELAYS 3 to 7 SETPOINTS INPUT Phasor RMS Configurable SGnd TOC 1 PKP FLEXLOGIC OPERANDS SGnd TOC 1 OP FLEXLOGIC OPERANDS DIRECTION Direction from Sens Ground D...

Page 312: ...tting sets the instantaneous Sensitive Ground overcurrent pickup level specified as a multiplier of the nominal CT current for sensitive CT input For example a PKP setting of 0 9 x CT with 300 5 CT translates into 270A primary current DIRECTION Range Disabled Forward Reverse Default Disabled This setting defines the operation direction of the Sensitive Ground time overcurrent element Entering the ...

Page 313: ...CHAPTER 6 PROTECTION SETPOINTS CURRENT ELEMENTS 850 FEEDER PROTECTION SYSTEM INSTRUCTION MANUAL 6 45 TARGETS Range Self reset Latched Disabled Default Self reset ...

Page 314: ...elay 1 TRIP LED TRIP OR OR From Cold Load Pickup From Sensitive Ground CT AND AND SETPOINT FUNCTION Disabled 0 Trip Alarm Latched Alarm PICKUP DELAY SETPOINTS t PKP From Autoreclose per shot settings LED ALARM RESET Command AND S R LATCH LED PICKUP SETPOINTS Do Not Operate Operate OUTPUT RELAYS 3 to 7 DIRECTION DROPOUT DELAY t RST Configurable SGnd IOC 1 PKP FLEXLOGIC OPERANDS SGnd IOC 1 OP FLEXLO...

Page 315: ...nit of the element by showing the voltage polarized phase angle comparator characteristics for a phase A to ground fault with ECA 90 element characteristic angle centerline of operating characteristic FWD LA 80 forward limit angle the angular limit with the ECA for operation REV LA 80 reverse limit angle the angular limit with the ECA for operation The element incorporates a current reversal logic...

Page 316: ...zero sequence voltage angle for polarization Select either the zero sequence voltage V_0 calculated from the phase voltages or the zero sequence voltage supplied externally as the auxiliary voltage V_X The calculated V_0 can be used as polarizing voltage only if the voltage transformers are connected in Wye The auxiliary voltage can be used as the polarizing voltage if the auxiliary voltage is con...

Page 317: ...age used by the directional unit when Voltage or Dual polarizing mode is set The polarizing voltage can be programmed to be either the zero sequence voltage calculated from the phase voltages Calculated V_0 or supplied externally as an auxiliary voltage Measured VX POLARIZING VOL SUPV Range 0 005 to 0 100 x VT in steps of 0 005 x VT Default 0 020 x VT The zero sequence V_0 or auxiliary voltage Vx ...

Page 318: ... 0 005 to 3 000 x CT in steps of 0 001 x CT Default 0 050 x CT This setting defines the Pickup level for the overcurrent unit of the element in the reverse direction BLOCK Range Off Any FlexLogic operand Default Off EVENTS Range Enabled Disabled Default Enabled TARGETS Range Self reset Latched Disabled Default Self reset ...

Page 319: ... DIR OC FWD SENS GND PICKUP DIR OC REV S Gnd Dir OC FWD S Gnd Dir OC REV Disabled 0 Measured VX Voltage Calculated V_0 Current Ground Crt Ig Sens Gnd Crt Isg Dual NOTE CURRENT POLARIZING IS POSSIBLE ONLY IN RELAYS WITH THE GROUND CURRENT INPUTS CONNECTED TO AN ADEQUATE CURRENT POLARIZING SOURCE Off 0 Enabled 1 AND AND AND AND AND AND AND OR OR OR OR Ig 0 05xCT Isg PICKUP Isg PICKUP Voltage Polariz...

Page 320: ...ground fault current depending on the position of the fault with respect to the winding neutral point The diagram below shows the dependence of the fault current on the fault distance from the neutral point Figure 6 19 Fault current with respect to distance from neutral The resultant primary current can be negligible for ground winding faults within 35 of the distance from the neutral point since ...

Page 321: ...utral current and may jeopardize the security of the RGF 1 protection When the GROUND CURRENT SUPERVISION setting is selected as Enabled the algorithm checks if the ground current measured by the relay satisfies the selected GROUND CURRENT SUPERV LEVEL before making operation decision The ground current supervision is not active if the GROUND CURRENT SUPERVISION is selected as Disabled The RGF 1 p...

Page 322: ...ults or during transformer energization Since RGF 1 protection is intended to detect small ground fault currents delayed clearance of such a fault is not a high concern On the other hand delayed RGF 1 operation due to a spurious ground differential current caused by an out of zone fault can be used as a backup for downstream protections should they fail to clear the fault GND CURR SUPERV Range Dis...

Page 323: ...aults close to the winding neutral so that the winding rated load can be used as a reference in defining the RGF 1 slope setting The rated load for 4 16kV Wye winding is Irated 5MVA 4 16kV v3 693 A Slope setting 36 A 693A 100 5 1 Select 5 if the transformer is expected to run most of the time at full load If most of the time the transformer runs at lower than the nominal loads the slope setting ca...

Page 324: ... 1 OP SETPOINTS Do Not Operate Operate OUTPUT RELAY 3 X Source IB Source IC AND SETPOINTS RGF 1 BLOCK Off 0 Source IA Disabled OR RESET Igd Imax Igd I pickup RUN SETPOINTS RGF 1 PICKUP DELAY t PKP 0 Select highest value Imax max Ia Ib Ic Trip Operate Output Relay 1 TRIP LED TRIP AND Igd 3Io Ig Calculate 3Io SETPOINTS RGF 1 PICKUP RGF 1 SLOPE Source Ig AND SETPOINTS RGF 1 GND CURR SUPERV Disabled 0...

Page 325: ... Range 0 05 to 1 00 x VT in steps of 0 01 Default 0 20 x VT This setting sets the dead line voltage threshold Voltage above this setting is not considered for the dead line condition To be in a dead line condition all phases must be below this threshold DEAD LINE MAX CURRENT Range 0 05 to 1 00 x CT in steps of 0 01 Default 0 05 x CT This setting definesthe dead line current threshold Currents abov...

Page 326: ...it breaker closure EXTERNAL SOTF TRIGGER Range Off Any FlexLogic operand Default Off SOTF can be detected by this logic or by an external logic or device This setting defines the external signal that can also detect the SOTF condition PICKUP DELAY Range 0 000 to 6000 000 s in steps of 0 001 Default 0 000 s This setting defines a potential delay before trip when SOTF is detected FASTPATH The curren...

Page 327: ...0 t dpo t Dead Line Pickup Delay SETPOINT pkp 0 OR Manual breaker closing command FlexLogic Operands SETPOINT BLOCK Off 0 AND SETPOINTS SOTF Max Voltage Va SETPOINTS SOTF Current Pickup Ia AND BKR1 Open FlexLogic Operands OR OR SETPOINT External SOTF Trigger Operand set 1 Ib Ic Vb Vc AND AND OR SETPOINTS Dead Line Max Current Ia Ib Ic SETPOINTS Dead Line Max Voltage Va Vb Vc Trip Configurable AND ...

Page 328: ...drops below 97 to 98 of the pickup value before the time for operation is reached When Definite Time is selected the time for Negative Sequence TOC operation is defined only by the TDM setting Path Setpoints Protection Group 1 6 Current Negative Sequence TOC 1 X FUNCTION Range Disabled Trip Alarm Latched Alarm Configurable Default Disabled SIGNAL INPUT Range dependant upon the order code Default C...

Page 329: ...NTS CURRENT ELEMENTS 850 FEEDER PROTECTION SYSTEM INSTRUCTION MANUAL 6 61 OUTPUT RELAY X For details see Common Setpoints EVENTS Range Enabled Disabled Default Enabled TARGETS Range Self reset Latched Disabled Default Self reset ...

Page 330: ...P LED TRIP Alarm OR OR Adjust PKP AND Latched Alarm AND RESET Negative sequence current In_2 Calculated value SETPOINTS BLOCK Off 0 From Autoreclose per shot settings From Cold Load Pickup LED ALARM RESET Command AND S R LATCH SETPOINTS Do Not Operate Operate OUTPUT RELAY 3 X Phasor Configurable Neg Seq TOC 1 PKP FLEXLOGIC OPERANDS Neg Seq TOC 1 OP FLEXLOGIC OPERANDS DIRECTION Direction from Neg S...

Page 331: ... Pickup accuracy and response time multiple of Pickup The operating quantity depends on the way the test currents are injected into the relay single phase injection Iop 0 2917 I_injected three phase injection opposite rotation Iop I_injected The settings of this function are applied to the calculated negative sequence current to produce Pickup and Trip flags The Negative Sequence IOC Pickup flag i...

Page 332: ... SETPOINTS DROPOUT DELAY Range 0 000 to 6000 000 s in steps of 0 001 s Default 0 000 s BLOCK Range Off Any FlexLogic operand Default Off OUTPUT RELAY X For details see Common Setpoints EVENTS Range Enabled Disabled Default Enabled TARGETS Range Self reset Latched Disabled Default Self reset ...

Page 333: ...uence IOC source AND AND SETPOINT FUNCTION Disabled 0 Trip Alarm Latched Alarm PICKUP DELAY SETPOINTS t PKP From Autoreclose per shot settings LED ALARM RESET Command AND S R LATCH LED PICKUP SETPOINTS Do Not Operate Operate OUTPUT RELAYS DIRECTION Phasor DROPOUT DELAY t DP O Configurable Neg Seq IOC 1 PKP FLEXLOGIC OPERANDS Neg Seq IOC 1 OP FLEXLOGIC OPERANDS Set Dominant Direction from Neg Seq D...

Page 334: ...o the relay For single phase injection Iop 1 3 1 K Iinjected for I_2 mode The directional unit uses the negative sequence current I_2 and negative sequence voltage V_2 The following tables define the Negative Sequence Directional Overcurrent element Table 6 12 Negative Sequence Directional Overcurrent Unit Table 6 13 Negative Sequence Directional Unit The negative sequence voltage must be greater ...

Page 335: ...tion coordination The above bias should be taken into account when using the Negative Sequence Directional Overcurrent element to directionalize other protection elements Path Setpoints Protection Group 1 6 Current Negative Sequence Dir OC 1 X FUNCTION Range Disabled Enabled Default Disabled SIGNAL INPUT Range dependant upon the order code Default CT Bank 1 J1 This setting provides a selection for...

Page 336: ...ECA limit angle for the forward direction FORWARD PICKUP Range 0 050 to 30 000 x CT in steps of 0 001 x CT Default 0 050 x CT The setting defines the Pickup level for the overcurrent unit in the forward direction When selecting this setting it must be kept in mind that the design uses a positive sequence restraint technique REVERSE LIMIT ANGLE Range 40 to 90 in steps of 1 Default 90 lag The settin...

Page 337: ...ce Restraint TIMER 1 25 cycles 1 5 cycles FLEXLOGIC OPERAND NegSeq DirOC FWD SETTING Disabled 0 Enabled 1 Function ACTUAL VALUES V_2 I_2 RUN I_2 K I_1 Pickup Voltage Polarization SETTINGS Forward ECA RUN Forward Limit Angle Reverse Limit Angle Forward Reverse SETTINGS Reverse Pickup RUN I_2 K I_1 Pickup Pos Seq Restraint FLEXLOGIC OPERAND NegSeq DirOC REV 894204A1 cdr TO NEG SEQ TOC AND IOC ELEMEN...

Page 338: ...s picked up for the time defined by the Pickup time delay The element instantaneously drops from Pickup without operation if the I_2 I_1 ratio decreases to 97 to 98 of the Pickup value before the time for operation is reached Path Setpoints Protection Group 1 6 Current Broken Conductor 1 X FUNCTION Range Disabled Trip Alarm Latched Alarm Configurable Default Disabled SIGNAL INPUT Range dependant u...

Page 339: ...ANUAL 6 71 PICKUP DELAY Range 0 000 to 6000 000 s in steps of 0 001 s Default 20 000 s BLOCK Range Off Any FlexLogic operand Default Off OUTPUT RELAY X For details see Common Setpoints EVENTS Range Enabled Disabled Default Enabled TARGETS Range Self reset Latched Disabled Default Self reset ...

Page 340: ...SETPOINTS BROKEN CONDUCTOR PICKUP DELAY 2 cyc 0 Broken Cond OP FlexLogic Operands Broken Cond PKP AND AND AND Command RESET S LATCH Set Dominant R OR LED ALARM LED TRIP Operate Output Relay 1 TRIP Phase A Current IA Phase B Current IB Phase C Current IC IA I_1 MIN IC I_1 MIN IB I_1 MIN IA IA 0 05pu IC IC 0 05pu IB IB 0 05pu I is 4 cycles old SETPOINTS BROKEN CONDUCTOR I_1 MAX I_1 I_1 MAX BROKEN CO...

Page 341: ...minimum operating value The Load Encroachment Trip flag is asserted if the element stays picked up for the time defined by the Pickup time delay Load Encroachment can be inhibited by a blocking input Path Setpoints Protection Group 1 6 Current Load Encroachment FUNCTION Range Disabled Enabled Default Disabled VT INPUT Range Ph VT Bnk1 J2 Ph VT Bnk2 K2 LEA Bnk1 J2 LEA Bnk2 J2 Default Ph VT Bnk1 J2 ...

Page 342: ...m and applies this to the positive sequence impedance PICKUP DELAY Range 0 000 to 6000 00 s in steps of 0 001 s Default 0 000 s FASTPATH It has to be taken into account that the Pickup time delay programmed in the overcurrent elements or the other elements that are blocked with Load Encroachment must be higher than the time programmed in the Load Encroachment function in order to avoid false tripp...

Page 343: ...HMENT REACH AND Positive seq current I_1 RUN SETPOINTS LOAD ENCROACHMENT BLOCK Off 0 Enabled FlexLogic Operands Load Encro OP Load Encro PKP LOAD ENCROACHMENT ANGLE SETPOINT LOAD ENCROACHMENT MINIMUM VOLTAGE V_1 MINIMUM SETPOINTS Do Not Operate Operate OUTPUT RELAYS 3 to 7 AND SETPOINTS LOAD ENCROACHMENT PICKUP DELAY LOAD ENCROACHMENT DROPOUT DELAY t PKP t DPO SETPOINT CT INPUT CT Bank 1 J1 850 On...

Page 344: ...as Breaker 1 programmed under Setpoints System Breaker 1 to monitor the breaker close status Path Setpoints Protection Group 1 Current Undercurrent 1 X TRIP FUNCTION Range Disabled Trip Configurable Default Disabled This setting enables the Undercurrent Trip functionality SIGNAL INPUT Range dependant upon the order code Default CT Bank 1 J1 This setting provides the CT Bank input for the Undercurr...

Page 345: ...m function ALARM PICKUP DELAY Range 0 00 to 180 00 s in steps of 0 01 s Default 1 00 s This setting specifies a time delay for the alarm function ALARM DROPOUT DELAY Range 0 00 to 180 00 s in steps of 0 01 s Default 1 00 s This setting specifies a time delay to reset the alarm command ALARM OUTPUT RELAY X For details see Common Setpoints BLOCK Range Off Any FlexLogic operand Default Off The Underc...

Page 346: ...ckup SETPOINT Trip Pickup Delay SETPOINTS Trip Dropout Delay t PKP t RST Alarm Pickup Delay SETPOINTS Alarm Dropout Delay t PKP t RST AND Operate Output Relay 1 TRIP LED TRIP LED Alarm AND AND OR LATCH S R RESET Command Undercur Trip PKP FLEXLOGIC OPERANDS Undercur Trip OP Undercur Alarm PKP FLEXLOGIC OPERANDS Undercur Alarm OP SETPOINT Trip Output Relay X Do Not Operate Operate SETPOINT Alarm Out...

Page 347: ... squared load Pickup ratio is greater than the thermal capacity θ t 1 estimated in the previous time step Otherwise the formula uses the cooling time constant When the load current exceeds the PKP setting and the element picks up At the same time the thermal capacity will start to increase at a rate depending on the current amplitude the prior loading condition of the cable and heating time consta...

Page 348: ...e maximum continuous current for the equipment within its thermal limits ALARM Range 70 0 to 110 0 in steps of 0 1 Default 80 0 The setting sets the Alarm level for the accumulated thermal capacity above which the element generates an alarm The Alarm signal can be displayed by the user programmable LED HEAT TIME CONSTANT τH Range 3 0 to 600 0 min in steps of 0 1 min Default 6 0 min The time consta...

Page 349: ...n element target message When set to Disabled no target message is issued upon operation of the element When set to Self Reset the target message and LED indication follow the operate state of the element and self resets once the operate element condition clears When set to Latched the target message will remain visible after the element output returns to logic 0 until a RESET command is received ...

Page 350: ...D AND Command RESET OR LED ALARM LED TRIP Operate Output Relay 1 TRIP RUN SETPOINTS OUTPUT RELAYS 3 7 Do Not Operate Operate CABLE THERMAL MDL HEAT TIME CONSTANT THERMAL OVERLOAD 1 PICKUP θ A 1 θ C 1 θ B 1 SETPOINTS THERMAL OVERLOAD 1 ALARM θ A ALARM θ C ALARM θ B ALARM OR Thermal 1 OP A Thermal 1 OP B Thermal 1 OP C Thermal 1 Alarm A Thermal 1 Alarm B Thermal 1 Alarm C Thermal 1 Alarm OR Thermal ...

Page 351: ...sly V Voltage as a fraction of the nominal VT Secondary Voltage Vpkp Undervoltage Pickup Level The element resets instantaneously if the applied voltage exceeds the dropout voltage The delay setting selects the minimum operating time of the phase undervoltage NOTE NOTE At 0 of Pickup the operating time equals the Undervoltage Pickup Time Delay setpoint Level 1 Level 2 Level 3 Level 4 Level 5 Setpo...

Page 352: ... FlexCurve reverses the ratio of voltages The ratio of set pickup value to the measured voltage Example For a Pickup set to 0 9 x VT when the measured voltage is 0 82 x VT the ratio would be 0 9 0 8 1 1 therefore in the FlexCurve the corresponding Trip time setting entry is at 1 1 x PKP not at 0 82 x PKP On the other hand when the measured voltage is 1 x VT the ratio is 0 9 1 0 9 therefore in the ...

Page 353: ...03 of the Pickup value before the time for operation is reached The minimum voltage setting selects the operating voltage below which the element is blocked a setting of 0 allows a dead source to be considered a fault condition This element may be used to give a desired time delay operating characteristic versus the applied voltage phase to ground or phase to phase for wye VT connection or phase t...

Page 354: ...oltages required for operation of the Phase UV protection function UNDERVOLTAGE CURVES Range Definite Time Inverse Time FlexCurves A B C D Default Definite Time This setting provides the selection of definite time delay or time delay inverse undervoltage curves or FlexCurves In the case of FlexCurves the voltage ratio used is reversed Refer to the equation and note regarding FlexCurves in the prev...

Page 355: ...hase to Phase Delta VTs RUN RUN PICK UP DELAY UNDERVOLTAGE CURVES VA VAB PICKUP VB VBC PICKUP VC VCA PICKUP OR SETPOINTS OPERATE ANY ONE ANY TWO ALL THREE PHASES FOR OPERATION PICK UP ANY ONE ANY TWO ALL THREE SETPOINTS MINIMUM VOLTAGE VA VAB MINIMUM AND AND VB VBC MINIMUM VC VCA MINIMUM AND Phase UV1 OP C Phase UV1 OP B Phase UV1 OP A MODE Phase A voltage VA Phase B voltage VB Phase C voltage VC ...

Page 356: ...ing threshold to prevent some undesired operation when voltage is not available The input voltages are the three phase to phase voltages from delta connected VTs PTs or three phase to ground voltages from wye connected VTs PTs The settings of this function are applied to each of the three voltage inputs to produce pickup and trip flags per voltage input The UV pickup flag is asserted when the meas...

Page 357: ...t 0 000 s This setting provides a definite time dropout delay Instantaneous operation is selected by a dropout time delay setting of 0 000 s MINIMUM VOLTAGE Range 0 00 to 1 50 x VT in steps of 0 01 x VT Default 0 20 x VT This setting sets the minimum operating voltage for undervoltage pickup level specified as percent of VT For example a minimum voltage setting of 0 20x VT with 13800 115 VT transl...

Page 358: ... at 0 3xVT point 5 should be greater than or equal to 0 3xVT CURVE TIME 1 10 Range 0 000 to 600000 000 s in steps of 0 001 s Default 2 000 s This setting provides the configurable characteristic curve operating time for the associated operating limit The curve time should be set in an increasing order For example point 1 should start at 0 000s and then point 2 should be at 0 150s FASTPATH The sett...

Page 359: ... PICKUP SETPOINTS OPERATE ANY ONE ANY TWO ALL THREE PHASES FOR OPERATION PICK UP ANY ONE ANY TWO ALL THREE SETPOINTS MINIMUM VOLTAGE VA VAB MINIMUM VB VBC MINIMUM VC VCA MINIMUM AND Timed UV 1 OP C Timed UV 1 OP B Timed UV 1 OP A MODE Phase A voltage VA Phase B voltage VB Phase C voltage VC Phase to Ground Voltages Wye connection Ph Ph AB voltage VAB Ph Ph BC voltage VBC Ph Ph CA voltage VCA Phase...

Page 360: ...the expected behavior are shown here Figure 6 38 System behaviour from Case 1 894189A1 cdr AND SETPOINTS COUNTER MODE Enabled Timed UV 1 PKP From Timed UV protection logic diagram Disabled SET RST SETPOINT Time for Voltage Drops tVDrops 0 AND FlexLogic Operands Timed UV 1 Cnt OP Voltage Drop Counter Increment 1 to 11 Reset 0 OR SETPOINTS VOLTAGE DROPS Count Number of Voltage Drops Allowed AND Rese...

Page 361: ...me window from one set of time to another It is not a sliding time window Hence there is no Trip observed because the time for voltage drop expires before the programmed threshold could be reached The timer resets before the next voltage drop The sample settings and the expected behavior are shown below here Curve Settings As shown in the red characteristic curve Pickup 0 90 x VT Dropout 105 5 of ...

Page 362: ...ve operating characteristics examples of this are shown in the following figure see A German BDEW and B North American NERC Figure 6 41 Examples of operating characteristics for LVRT In such low voltage conditions the protection devices are required to not trip and the energy resource can continue to support the grid under transient low voltages To meet these requirements the configurable curve po...

Page 363: ...mmed threshold value before the total time allowed for voltage drop expires a trip Timed UV 1 Cnt OP is issued The counter and timer are both reset if there is no timed undervoltage pickup and one of these two conditions occurs 1 A trip signal is issued due to the counter exceeding the programmed threshold for the number of voltage drops 2 Total time for allowed voltage drop expires without reachi...

Page 364: ...7 8 9 10 2000 1 In this case there are two operating points for the same voltage level The point with lower time point A in this case will be used for operation Points sorted by Time Points 1 2 3 4 5 6 7 7 8 8 9 9 10 Original Points New Points 1 2 3 4 6 5 6 7 7 8 8 9 9 10 Point Time Limit 1 600 0 3 2 150 0 3 3 150 0 4 0 0 5 1500 0 9 6 600 0 5 7 8 9 10 2000 1 In this case the points are not sorted ...

Page 365: ...lant will be switched off by the circuit breaker at the network connection point The UV Reactive Power element consists of a protection function and generating unit restoration function Protection Function UV reactive power protection function operates after a configurable time delay programmed as Pickup Delay as soon as all the phase voltages fall below the set voltage level programmed as Pickup ...

Page 366: ...tion phase to phase for delta connected VT connection SIGNAL INPUT Range Power 1 Power 2 Default Power 1 This setting provides the power source selection The selection for power comes from the power sensing settings in system setup When Signal Input is programmed as Power 1 the element uses actual metering value Pwr1 Reactive Metering Power 1 When the Signal Input is programmed as Power 2 element ...

Page 367: ... Direction Forward or exceeds when Var Direction Reverse the set value of Min Var then the UV Reactive Protection pickups VAR DIRECTION Range Forward Reverse Default Forward This setting specifies the flow direction of the watts P and Vars Q during normal and fault situations as seen from the grid or generator viewpoint When this value is programmed as Forward During normal operation P 0 and Q 0 w...

Page 368: ... 20 00 to 65 00 Hz in steps of 0 01 Default 60 50 Hz Re closing of the generator circuit breaker requires that the frequency measurement must lie within the band defined by the Min Frequency and Max Frequency setpoints MIN CURRENT Range 0 00 to 1 00 x CT in steps of 0 01 Default 0 10 x CT Current that is greater than the minimum current level as defined by the Min Current setpoint resets the CB re...

Page 369: ... Reactive Power Restore function can be supervised by the Synchrocheck function Path Setpoints Control Synchrocheck 1 The Synchrocheck function must be enabled and set accordingly For applications where Synchrocheck and or dead source check is not needed Sycn Supervision can be bypassed by setting it to Off FASTPATH If the Sync Supervision is On and the UV Reactive Power Restore function is applie...

Page 370: ...OLTAGE SETPOINT VA Pickup Voltage Curr Superv Level SETPOINT I1 Current Sup Level PICKUP VARS SETPOINT Vars Pickup Vars when Var Direction Forward Vars Pickup Vars when Var Direction Reverse VAR DIRECTION Pickup Delay SETPOINT t PKP t DPO Dropout Delay Voltage Mode SETPOINT When MODE Phase to Ground VA VAG VB VBG VC VCG When MODE Phase to Phase VA VAB VB VBC VC VCA VB Pickup Voltage VC Pickup Volt...

Page 371: ...c Operand RESTORE DELAY SETPOINT t delay 0 Falling Edge FLEXLOGIC OPERANDS UV Var Restore SETPOINT Output Relay X Do Not Operate Operate AND VA Min Voltage VB Min Voltage VC Min Voltage AND F Min Frequency F Max Frequency S R SETPOINT 27Q INITIATE Off 0 On AND OR AND LATCH SETPOINT SYNC SUPERVISION Off ON Sync1 Close Perm From Synchrocheck 1 AND OR AND AND SETPOINT Configurable RESTORE FUNCTION Di...

Page 372: ...f the Pickup value before the time for operation is reached The minimum voltage setting selects the operating voltage below which the element is blocked a setting of 0 will allow a dead source to be considered a fault condition This element may be used to give a desired time delay operating characteristic versus the applied voltage or as a definite time element For the inverse time setpoint the un...

Page 373: ...TS Range Enabled Disabled Default Enabled TARGETS Range Disabled Self reset Latched Default Self reset Figure 6 47 Auxiliary Undervoltage Protection logic diagram 894047A3 cdr SETPOINTS Auxiliary voltage Vaux SETPOINT FUNCTION Disabled Trip PICKUP AND Operate Output Relay 1 TRIP LED PICKUP LED TRIP Alarm OR OR AND Latched Alarm AND RUN SETPOINTS BLOCK Off 0 LED ALARM LATCHED ALARM RESET Command AN...

Page 374: ...ore the time for operation is reached Path Setpoints Protection Group 1 6 Voltage Phase OV 1 X FUNCTION Range Disabled Trip Alarm Latched Alarm Configurable Default Disabled SIGNAL INPUT Range dependant upon the order code Default Ph VT Bnk1 J2 or LEA Bnk1 J2 dependant on order code This setting provides the selection for the voltage signal input MODE Range Phase to Ground Phase to Phase Default P...

Page 375: ...o 6000 000 s in steps of 0 001 s Default 1 000 s DROPOUT DELAY Range 0 000 to 6000 000 s in steps of 0 001 s Default 1 000 s BLOCK Range Off Any FlexLogic operand Default Off OUTPUT RELAY X For details see Common Setpoints EVENTS Range Enabled Disabled Default Enabled TARGETS Range Disabled Self reset Latched Default Self reset ...

Page 376: ...Phase OV 1 OP B Phase OV 1 OP A Phase OV 1 PKP Phase OV 1 OP C Phase OV 1 OP B Phase OV 1 OP A SETPOINTS MODE Phase to Ground Phase to Phase for wye connection Phase to Phase Delta connection Ph Ph AB voltage VAB Ph Ph BC voltage VBC Ph Ph CA voltage VCA Phase to Phase Voltages Delta connection VB VBC PICKUP RUN VC VCA PICKUP RUN SETPOINTS PICKUP DELAY DROPOUT DELAY t PKP t RST t PKP t RST t PKP t...

Page 377: ...ion are applied to the auxiliary voltage input to produce pickup and trip flags The Auxiliary OV pickup flag is asserted when the voltage on auxiliary input is above the PKP value The Auxiliary OV trip flag is asserted if the element stays picked up for the time defined by pickup time delay Inverse Time or FlexCurves The element drops from pickup without operation if the measured voltage drops bel...

Page 378: ...x VT in steps of 0 01 x VT Default 1 50 x VT This setting sets the auxiliary overvoltage pickup level specified per times VT For example a Pickup setting of 1 10 x VT with 13800 115 VT translates into 15 08kV or 126 5V secondary PICKUP DELAY Range 0 000 6000 000s in steps of 0 001s Default 1 000s DROPOUT DELAY Range 0 000 to 6000 000 s in steps of 0 001 s Default 1 000 s BLOCK Range Off Any FlexLo...

Page 379: ...Disabled Trip PICKUP AND Operate Output Relay 1 TRIP LED TRIP Alarm OR OR Auxiliary voltage AND Latched Alarm AND Vx PICKUP RUN SETPOINTS BLOCK Off 0 LED ALARM LATCHED ALARM RESET Command AND S R LATCH Configurable FlexLogic Operands Aux OV OP Aux OV PKP PICK UP DELAY DROP OUT DELAY LED PICKUP SETPOINTS Do Not Operate Operate OUTPUT RELAYS 3 to 7 SETPOINTS SIGNAL INPUT NAME Ax VT Bnk1 J2 889 Overv...

Page 380: ...line to ground fault coverage on high impedance grounded or ungrounded systems which are isolated This constraint stems from the fact that a measurement of 3V_0 cannot discriminate between a faulted circuit and an adjacent healthy circuit Use of a time delayed back up or alarm mode allows other protections an opportunity to isolate the faulted element first As indicated above the relay has one Neu...

Page 381: ...ANUAL 6 113 DROPOUT DELAY Range 0 000 to 6000 000 s in steps of 0 001 s Default 1 000 s BLOCK Range Off Any FlexLogic operand Default Off OUTPUT RELAY X For details see Common Setpoints EVENTS Range Enabled Disabled Default Enabled TARGETS Range Disabled Self reset Latched Default Self reset ...

Page 382: ...OR AND Latched Alarm AND SETPOINTS BLOCK Off 0 LED ALARM LATCHED ALARM RESET Command AND S R LATCH Configurable FlexLogic Operands Neutral OV 1 OP Neutral OV 1 PKP SETPOINTS PICK UP DELAY DROP OUT DELAY t PKP t RST Van 0 85 x VT Vbn 0 85 x VT Vcn 0 85 x VT OR 3_Vo PICKUP RUN CURVE SETPOINTS Do Not Operate Operate OUTPUT RELAYS 3 to 7 Phase A Voltage Va Phase B Voltage Vb Phase C Voltage Vc Phase V...

Page 383: ...he element drops from Pickup without operation if the calculated Negative Sequence Voltage drops below 97 to 98 of the Pickup value before the time for operation is reached Path Setpoints Protection Group 1 6 Voltage Neg Seq OV 1 X FUNCTION Range Disabled Trip Alarm Latched Alarm Configurable Default Disabled SIGNAL INPUT Range dependant upon the order code Default Ph VT Bnk1 J2 or LEA Bnk1 J2 dep...

Page 384: ...6 116 850 FEEDER PROTECTION SYSTEM INSTRUCTION MANUAL VOLTAGE ELEMENTS CHAPTER 6 PROTECTION SETPOINTS TARGETS Range Disabled Self reset Latched Default Self reset ...

Page 385: ...IP LED PICKUP LED TRIP Alarm OR OR AND Latched Alarm AND SETPOINTS BLOCK Off 0 LED ALARM LATCHED ALARM RESET Command AND S R LATCH Configurable FlexLogic Operands Neg Seq OV 1 OP Neg Seq OV 1 PKP SETPOINTS PICK UP DELAY DROP OUT DELAY t PKP t RST V_2 PICKUP RUN SETPOINTS Do Not Operate Operate OUTPUT RELAYS 3 to 7 SETPOINTS Signal Input Ph VT Bank 1 J2 Phase A Voltage Va Phase B Voltage Vb Phase C...

Page 386: ...Ig and K1 Ig supplied externally at ground CT input The setting range provides flexibility of selecting the current source bank currents J1 I0 and J1 Ig correspond to Bank 1 Slot J1 while currents K1 I0 and K1 Ig correspond to Bank 2 Slot K1 FASTPATH Selection of K1 I0 and K1 Ig is only available with a Slot K bank order code Otherwise the neutral admittance is calculated from the Slot J options o...

Page 387: ...e Non directional Forward Reverse Default Non directional When set to Non Directional the element operates in both forward and reverse direction If set to Forward the element operates when the fault is detected in the forward direction When set to Reverse the element operates when the fault is detected in the Reverse direction The following figures show the interactions between different setting o...

Page 388: ...e current is reversed or not relative to voltage this setting can be used to change the polarity When 180 deg is selected the measured admittance Y0 is multiplied with 1 which corresponds to a 180 degree shift in current direction Secondly this angle can also be used to eliminate the angular errors of the voltage transformer and or current transformers CT measured phase angle deviations caused by ...

Page 389: ...f the Direction setting this element always operates in the non directional mode Operating characteristic depends only on the pick up threshold defined by this setting G0 FWD REACH Range 500 00 to 500 00 mS in steps of 0 01 mS Default 1 00 mS This setting defines the pickup level of protection criterion based on the neutral conductance Neutral Admittance Ground Fault protection will operate after ...

Page 390: ...llows B0 FWD REACH Range 500 00 to 500 00 mS in steps of 0 01 mS Default 1 00 mS This setting defines the pickup level of the protection criterion based on the neutral susceptance Neutral Admittance Ground Fault protection will operate after the set Pickup Delay time when the neutral susceptance quantity B0 exceeds this setting This setting is not applicable when the Direction setpoint is set as R...

Page 391: ...2 x CT This setting specifies the minimum limit of the measuring process ground current to activate Neutral Admittance Ground Fault protection The element remains blocked until the ground current value for building the protective criterion exceeds this minimum limit MINIMUM VOLTAGE Range 0 01 to 1 50 x VT in steps of 0 01 mS Default 0 01 x VT This setting specifies the minimum limit of the measuri...

Page 392: ...0 to 600 000 s in steps of 0 001 s Default 0 000 s This setting specifies a dropout time delay for the function BLOCK Range Off Any FlexLogic operand Default Off The element will be blocked when the selected operand is asserted OUTPUT RELAY X For details see Common Setpoints EVENTS Range Enabled Disabled Default Enabled The element will be blocked when the selected operand is asserted TARGETS Rang...

Page 393: ...E SETPOINT V Min Voltage VOLTAGE INPUT SETPOINT J2 V0 I Min Current MIN CURRENT SETPOINT DIRECTION G0 FWD REACH Y0 REACH G0 REV REACH S0 FWD REACH S0 REV REACH RUN MODE SETPOINT G0 Y0 S0 RUN RUN AND AND AND jB G Y0 Operate Block G Operate Block G0 G0 Operate jB G Operate Block B0 Operate B0 SETPOINT ANGLE CORRECTION FLEXLOGIC OPERANDS Ntrl Admit 1 OP FLEXLOGIC OPERANDS Ntrl Admit 1 PKP t DOP ACTUA...

Page 394: ...ents Figure 6 54 Power Elements Display Hierarchy Level 1 Level 2 Level 3 Level 4 Level 5 Setpoints Device System Inputs Outputs Protection Monitoring Control FlexLogic Data Capture Power Frequency Voltage Current Wattmetric Ground Fault Directional Power Group 1 Group 2 Group 3 Group 4 Group 5 Group 6 Testing ...

Page 395: ... power as shown in the Directional Power characteristic diagram The element responds to the following condition Where P and Q are active and reactive powers as measured per the metering convention Ɵ is a sum of the element characteristic DIR POWER 1 RCA and calibration DIR POWER 1 CALIBRATION angles SMIN is the minimum operating power The element has two independent as to the Pickup and Delay sett...

Page 396: ...6 128 850 FEEDER PROTECTION SYSTEM INSTRUCTION MANUAL POWER ELEMENTS CHAPTER 6 PROTECTION SETPOINTS Figure 6 56 Sample applications of the Directional Power element ...

Page 397: ...ye connected power transformer and phase angle compensation is required For example the active overpower characteristic is achieved by setting DIR POWER 1 RCA to 0 reactive overpower by setting DIR POWER 1 RCA to 90 active underpower by setting DIR POWER 1 RCA to 180 and reactive underpower by setting DIR POWER 1 RCA to 270 CALIBRATION Range 0 to 0 95 in steps of 0 05 Default 0 This setting allows...

Page 398: ...sequence current becomes virtually zero that is it drops below the cutoff level STAGE 1 DELAY Range 0 000 to 6000 000 s in steps of 0 001 s Default 0 500 s The setting specifies a time delay for stage 1 For reverse power or low forward power applications for a synchronous machine stage 1 is typically applied for alarming and stage 2 for tripping STAGE 2 SMIN Range 1 200 to 1 200 x Rated Power in s...

Page 399: ...e OR SETPOINTS DIR POWER 1 RCA DIRECTIONAL POWER CHARACTERISTICS SETPOINTS DIR POWER 1 STAGE 1 DELAY t PKP 100 ms FlexLogic Operands DirPwr 1 Stg2 PKP AND AND AND Command RESET OR LED ALARM LED TRIP Operate Output Relay 1 TRIP RUN SETPOINTS RELAYS Do Not Operate Operate DIR POWER 1 CALIBRATION DIR POWER 1 STAGE 1 SMIN DIR POWER 1 STAGE 2 SMIN SETPOINTS DIR POWER 1 STAGE 2 DELAY t PKP 100 ms DirPwr...

Page 400: ...is selected the voltage input shall be either Ax VT Bnk1 J2 or Ax VT Bnk2 K2 VOLTAGE Range Calculated VN Measured Vx Default Calculated VN The element uses neutral voltage that is three times the zero sequence voltage The setting allows selecting the internally calculated neutral voltage or externally supplied voltage broken delta VT connected to the auxiliary channel bank of the relay When the la...

Page 401: ...lement A value of 1 CTxVT is a product of the 1 VT voltage as specified for the overvoltage condition of this element and 1 CT current as specified for the overcurrent condition of this element REFERENCE POWER PICKUP Range 0 001 to 1 200 CTxVT in steps of 0 001 CTxVT Default 0 500 CTxVT The setting is used to calculate the inverse time characteristic delay defined by Sref in the equations below A ...

Page 402: ...nes a definite time delay before the inverse time characteristic is activated If the curve selection is set as Definite Time the element operates after this security time delay If the curve selection is Inverse or one of the FlexCurves the element uses both the definite and inverse time timers simultaneously The definite time timer specified by this setting is used and when it expires it releases ...

Page 403: ...is a multiplier defined by the multiplier setting Sref is the reference power Pickup setting Sop is the operating power at the time This timer starts after the definite time timer expires The four FlexCurves allow custom user programmable time characteristics When working with FlexCurves the element uses the operate power to reference power ratio and the multiplier setting is not applied Again the...

Page 404: ...ic Operands AND AND AND Command RESET OR LED ALARM LED TRIP Operate Output Relay 1 TRIP RUN SETPOINTS OUTPUT RELAYS 3 7 Do Not Operate Operate Watt GndFlt 1 PKP Watt GndFlt 1 OP SETPOINTS WATT GND FLT CURRENT Calculated Vn or Measured Vx SETPOINTS WATT GND FLT VOLTAGE SETPOINTS WATT GND FLT POWER PICKUP S OP PKP RUN WATT GND FLT VOLTAGE PICKUP WATT GND FLT CURRENT PICKUP V MAG PKP RUN I MAG PKP RU...

Page 405: ...60 Frequency Elements Display Hierarchy Setpoints Device System Inputs Outputs Protection Monitoring Control FlexLogic Data Capture Power Frequency Voltage Current Overfrequency Fast Underfrequency Frequency Rate of Change Level 1 Level 2 Level 3 Level 4 Level 5 Group 1 Group 2 Group 3 Group 4 Group 5 Group 6 Underfrequency Testing ...

Page 406: ...und voltages from wye connected VTs PTs or single phase auxiliary voltage The input currents are the three phase currents The Underfrequency Pickup flag is asserted when the measured frequency of the specified source is below the PKP value and the voltage and current are above the MINIMUM levels The Underfrequency Trip flag is asserted if the element stays picked up for the time defined by the Pic...

Page 407: ...internally changed to 1 sqrt 3 of the user setting since the base of VT here is the phase phase voltage CT INPUT Range dependant upon the order code Default CT Bank 1 J1 or CT Bank 1 K1 dependant on order code MINIMUM CURRENT Range 0 000 to 30 000 x CT in steps of 0 001 x CT Default 0 200 x CT The setting sets the minimum value of current required on any phase to allow the Underfrequency element t...

Page 408: ...TPOINTS UNDERFREQ 1 MINIMUM CURRENT I MINIMUM SETPOINTS UNDERFREQ 1 MINIMUM VOLTAGE AND SETPOINTS UNDERFREQ 1 PICKUP 0 f PICKUP FREQUENCY f RUN SETPOINTS UNDERFREQ 1 PICKUP DELAY t PKP t DPO UNDERFREQ 1 DROPOUT DELAY Underfreq1 OP FlexLogic Operands Underfreq 1 PKP AND AND AND Command RESET OR LED ALARM LED TRIP Operate Output Relay 1 TRIP RUN V MINIMUM RUN SETPOINTS OUTPUT RELAYS 3 X Do Not Opera...

Page 409: ...us element with no time delay or as a definite time delayed element The Overfrequency element has a fixed minimum operating threshold to prevent undesired operation during periods of unavailable voltage The input voltages are the three phase to phase voltages from delta connected VTs PTs three phase to ground voltages from wye connected VTs PTs or single phase auxiliary voltage The settings of thi...

Page 410: ... 3 phase VT uses a delta connection and FREQUENCY INPUT is set to Ph VT Bnk1 J2 the positive sequence voltage is used as the supervision voltage In such condition the true supervision level is internally changed to 1 sqrt 3 of the user setting since the base of VT here is the phase phase voltage BLOCK Range Off Any FlexLogic operand Default Off OUTPUT RELAY X For details see Common Setpoints EVENT...

Page 411: ...puts None SETPOINTS OVERFREQ 1 PICKUP f PICKUP RUN SETPOINTS OVERFREQ 1 PICKUP DELAY t PKP t DPO OVERFREQ 1 DROPOUT DELAY Overfreq1 OP FlexLogic Operands Overfreq1 PKP AND AND Command RESET OR LED ALARM SETPOINTS OVERFREQ 1 MINIMUM OPERATING VOLTAGE V MINIMUM FREQUENCY f RUN SETPOINTS OUTPUT RELAYS 3 Do Not Operate Operate S LATCH Set Dominant R Trip AND LED TRIP Operate Output Relay 1 TRIP WYE DE...

Page 412: ...element is blocked The minimum and maximum frequencies set the operating frequency range out of which the element is blocked Path Setpoints Protection Group 1 6 Frequency Frequency Rate of Change 1 X FUNCTION Range Disabled Trip Alarm Latched Alarm Configurable Default Disabled The selection of the Trip Alarm Latched Alarm or Configurable setting enables the element When the Trip function is selec...

Page 413: ...example if the intent is to monitor an increasing trend but only if the frequency is already above certain level this setting is set to the required frequency level MAXIMUM FREQUENCY Range 20 00 to 80 00 Hz in steps of 0 01 Hz Default 65 00 Hz The setting defines the maximum frequency level required for operation of the element The setting may be used to effectively block the feature based on freq...

Page 414: ...element will be blocked when the selected operand is asserted OUTPUT RELAY X For details see Common Setpoints Each relay can be selected to become either energized or de energized when operated and to operate as latched self resetting or pulsed EVENTS Range Enabled Disabled Default Enabled The selection of the Enabled setting enables the events of the function TARGETS Range Disabled Self reset Lat...

Page 415: ...N SETPOINTS FREQ RATE PICKUP DELAY t PKP 0 FreqRate1 OP FlexLogic Operands FreqRate1 Up PKP AND AND AND Command RESET OR LED ALARM LED TRIP Operate Output Relay 1 TRIP RATE OF CHANGE df dt SETPOINTS FREQ RATE TREND Decreasing Increasing Bi directional SETPOINTS FREQ RATE MIN FREQUENCY FREQ RATE MAX FREQUENCY AND AND SETPOINTS FREQ RATE PICKUP df dt PICKUP RUN SETPOINTS FREQ RATE PICKUP DELAY t PKP...

Page 416: ... underfrequency threshold but also on the dynamic rate of change of frequency The Fast Underfrequency element is mainly used in medium voltage and distribution substations as a selective load shedding scheme By doing so frequency recovers stability and potentially dangerous situations that might affect generators in other parts of the electrical system are avoided The Fast Underfrequency element m...

Page 417: ... the element is reset On the other hand if the pickup conditions are satisfied before reset the element will continue the count of semi cycles to set from where it was left The invalid frequency measurement will not affect the SET counter The SEMICYCLES SET and SEMICYCLES RESET settings are common for the eight Fast Underfrequency elements Path Setpoints Protection Group 1 6 Frequency Fast Underfr...

Page 418: ...SYSTEM INSTRUCTION MANUAL FREQUENCY ELEMENTS CHAPTER 6 PROTECTION SETPOINTS OUTPUT RELAY X For details see Common Setpoints EVENTS Range Enabled Disabled Default Enabled TARGETS Range Self reset Latched Disabled Default Self reset ...

Page 419: ... 3 X Do Not Operate Operate Disabled J2 Voltage Input Fast UF 1 PKP Fast UF 1 OP SETPOINT WYE DELTA VA VAB VB VBC VC VCA Vx V MINIMUM RUN SETPOINT Positive sequence Composite FREQUENCY INPUT MINIMUM VOLTAGE SETPOINT 0 f PICKUP RUN UF PICKUP SETPOINT df dt PICKUP RUN ROC PICKUP Frequency f Rate of Change df dt SETPOINT TYPE UF Only UF and df dt AND AND OR SETPOINT Counter RUN SEMICYCLES SET RESET S...

Page 420: ...6 152 850 FEEDER PROTECTION SYSTEM INSTRUCTION MANUAL FREQUENCY ELEMENTS CHAPTER 6 PROTECTION SETPOINTS ...

Page 421: ...Setpoints Device System Inputs Outputs Protection Monitoring Control FlexLogic Data Capture Functions Breaker Power Factor Demand Digital Counters Pulsed Outputs Trip Circuit Monitoring Close Circuit Monitoring Breaker Arcing Current Breaker Health Apparent Power Level 5 Reactive Power Real Power Current Testing Data Capture Harmonic Detection e RTD Temperature Data Capture RTD Trouble e Loss of C...

Page 422: ...T V for the Trip coil monitoring or and FA_2 COM and FA_2 OPT V for the Close coil monitoring The monitor contains a level detector whose output is set to logic 1 ON when the voltage is above 20 volts The voltage monitor is used to check the health of the overall trip and closing circuit The two figures below show the two different connections of the breaker trip and close coils to the relay s tri...

Page 423: ...STRUCTION MANUAL 7 3 Figure 7 3 Close Coil Circuit without Monitoring Figure 7 4 Trip Coil Circuit with Monitoring V DC DC Output Relay 2 CLOSE 52b contact Close Coil FA_2 COM FA_2 NO FA_2 OPT V V DC DC Output Relay 1 TRIP 52a contact Trip Coil FA_1 COM FA_1 NO FA_1 OPT V External Jumper ...

Page 424: ...ations require monitoring the Trip coil or and Close coil continuously regardless of the breaker position open or closed This can be achieved by connecting a suitable resistor see the table Value of Resistor R across the breaker auxiliary contact s 52a in the trip circuit across 52b contact s for Close coil With such connections the trickle current is maintained by the resistor For these applicati...

Page 425: ... FA_1 NO FA_1 OPT V External Jumper R Bypass resistor V DC DC Output Relay 1 TRIP 52a contact Trip Coil FA_1 COM FA_1 NO FA_1 OPT V External Jumper R Bypass resistor 52a contact R Bypass resistor V DC DC Output Relay 2 CLOSE 52b contact Close Coil FA_2 COM FA_2 NO FA_2 OPT V External Jumper R Bypass resistor V DC DC Output Relay 2 CLOSE 52b contact Close Coil FA_2 COM FA_2 NO FA_2 OPT V External J...

Page 426: ...led Default Disabled Set the Bypass Breaker State to Enabled when a by pass resistor is connected across the breaker auxiliary contact for continuous Trip circuit monitoring The circuits are monitored regardless of breaker position BREAKER STATE CLOSED Range Off Any FlexLogic operand Contact inputs Virtual inputs Remote inputs Default Off This setpoint selects the FlexLogic operand digital input v...

Page 427: ... LATCHED ALARM RESET Command AND S R LATCH 1 Set Dominant Configurable FlexLogic Operand Trip Coil Mon 1 OP SETPOINTS Do Not Operate Operate OUTPUT RELAY 3 X SETPOINT TCM BLOCK Off 0 AND SETPOINT TCM PICK UP DELAY SETPOINT TCM BYPASS BKR STATE Disabled 0 FlexLogic Operand Trip Coil 1 Mon PKP OR t PKP t RST TCM DROP OUT DELAY SETPOINT TCM BKR STATUS CLOSED Off 0 AND OUTPUT RLY 1 TRIP OPERATE OUTPUT...

Page 428: ...hen a by pass resistor is connected across the breaker auxiliary contact for continuous Close circuit monitoring The circuits are monitored regardless of breaker position BREAKER STATE OPENED Range Off Any FlexLogic operand Contact inputs Virtual inputs Remote inputs Default Off The setpoint selects the FlexLogic operand digital input virtual input or remote input to indicate that circuit breaker ...

Page 429: ... RESET Command AND S R LATCH 1 Set Dominant Configurable FlexLogic Operand Close Coil Mon 1 OP SETPOINTS Do Not Operate Operate OUTPUT RELAY 3 X SETPOINT CCM BLOCK Off 0 AND SETPOINT CCM PICK UP DELAY SETPOINT CCM BYPASS BKR STATE Disabled 0 FlexLogic Operand Close Coil Mon 1 PKP OR t PKP t RST CCM DROP OUT DELAY SETPOINT CCM BKR STATUS OPENED Off 0 AND OUTPUT RLY 2 MONITORING VOLTAGE THRESHOLD OU...

Page 430: ...ced between initiation and starting of integration to prevent integration of current flow through the breaker before the contacts have parted This interval includes the operating time of the output relay any other auxiliary relays and the breaker mechanism For maximum measurement accuracy the interval between the change of state of the operand from 0 to 1 and contact separation should be measured ...

Page 431: ...ime the breaker contacts are expected to part starting the integration of the measured current ALARM LEVEL Range 0 to 50000 kA2 c in steps of 1 kA2 c Default 1000 kA2 c The setpoint specifies the threshold value kA2 cycle above which the output operand is set BLOCK Range Off Any FlexLogic operand Default Off OUTPUT RELAYS X For details see Common Setpoints EVENTS Range Enabled Disabled Default Ena...

Page 432: ...erate Operate OUTPUT RELAY 3 X CT Bank current IB CT Bank current IC AND SETPOINTS BKR 1 ARCING BLOCK Off 0 CT Bank current IA Disabled AND COMMAND CLEAR BKR 1 ARCING CURRENT YES 1 OR RESET IA t Integrate IB t Integrate IC t Integrate RUN RUN RUN SETPOINTS BKR 1 ARCING DELAY t delay 0 BKR 1 ARCING INITIATION Off 0 SETPOINTS OR 100ms 0 IA cycle IB cycle IC cycle Add to accumulator Set all to 0 Sele...

Page 433: ...tively So it automatically resets the related time interval after the programmed delay A breaker operation function is also included where breaker operation failure is caused by either of the following conditions The breaker does not respond to a Trip command within the programmed breaker operation delay time The breaker does not respond to a Close command within the programmed time Path Setpoints...

Page 434: ... time The Trip time interval is initiated by the TRIP TRIGGER signal and stopped by the OPEN STATUS signal CLOSE TIME PICKUP Range 0 000 to 6000 000 s in steps of 0 001 s Default 0 050 s The setting sets the Pickup level of the Close time The Close time interval is initiated by the CLOSE TRIGGER signal and stopped by the CLOSE STATUS signal INCOMPLETE TRP CLS TIME Range 0 000 to 6000 000 s in step...

Page 435: ...evel of the arc energy The arc energy value is calculated in the Breaker Arcing Current element FASTPATH The ACR ENERGY is calculated by the breaker arcing current element If the breaker arcing current element is disabled the ACR ENERGY is not calculated and this setting should not be used The ACR ENERGY used here is the individual value for each trip and not the accumulated value recorded in the ...

Page 436: ... t_arc_C t_trip 1 cyc PKP RUN SETPOINTS BKR HEALTH CLOSE TRIGER Off 0 SETPOINTS BKR HEALTH BKR CLOSE STATUS Off 0 SETPOINTS BKR HEALTH SPRING CHARGE STATUS Off 0 t _close START STOP t _charge t_close PKP RUN SETPOINTS BKR HEALTH CLOSE TIME PICKUP t_charge PKP RUN SETPOINTS BKR HEALTH CHARGE TIME PICKUP START START START Arc Energy Inputs IA2t cycle IB2t cycle IC2 t cycle IA2 t PKP RUN SETPOINTS BK...

Page 437: ...r to signal an alarm to the system operator After entering this state when the Power Factor becomes less lagging or leading than the Power Factor Switch Out level for a time greater than the set delay the relay resets the output contact to the non operated state For delta connected VTs the Power Factor feature is inhibited from operating unless all three voltages are above a threshold and one or m...

Page 438: ...nditions the power factor will be re calculated based on the still valid phase s If the element is continuously asserted with the new power factor value the timer will continue timing otherwise the element will reset without operating The following figure illustrates the conventions established for use in 850 relays where the negative value means the lead power factor and the positive value means ...

Page 439: ...CHAPTER 7 MONITORING FUNCTIONS 850 FEEDER PROTECTION SYSTEM INSTRUCTION MANUAL 7 19 ...

Page 440: ...ions are satisfied The Power Factor Operate flag in the Switch In level is asserted if the element stays switched in for the time defined by the time delay After the element drops from Switch In the Power Factor Switch Out flag is asserted when the Power Factor passes the Switch Out value The Power Factor Operate flag in the Switch Out level is asserted if the element stays switched out for the ti...

Page 441: ...ead 1 0 99 Lag 0 98 Lag 0 02 Lag 0 01 Lag Default 1 00 The setting sets the Power Factor Switch Out level The negative value is used to denote the lead power factor and the positive value is used for the lag power factor FASTPATH SWITCH IN and SWITCH OUT are mutually exclusive settings See the application examples above which show no common zone in which both SWITCH IN and SWITCH OUT are asserted ...

Page 442: ...e s wye connected VTs SETPOINT POWER FACTOR 1 MINIMUM VOLTAGE VAB MINIMUM RUN IA 0 002 xCT VBC MINIMUM VCA MINIMUM IB 0 002 xCT IC 0 002 xCT AND OR SETPOINTS POWER FACTOR 1 DELAY t DLY 0 SETPOINTS POWER FACTOR 1 SWITCH IN PF SWITCH IN both PF and SWITCH IN are lag or lead RUN SETPOINTS POWER FACTOR 1 SWITCH OUT PF passing SWITCH OUT RUN SETPOINTS POWER FACTOR 1 DELAY t DLY 0 AND PF 1 Switch Out PF...

Page 443: ... Demand equivalent based on d t D 1 e kt Where d demand value after applying input quantity for time t in minutes D input quantity constant k 2 3 thermal 90 response time Figure 7 15 Thermal Demand Characteristic 15 min response The 90 thermal response time characteristic defaults to 15 minutes A setpoint establishes the time to reach 90 of a steady state value just as with the response time of an...

Page 444: ...ling Dmd Default Blk Interval This setting sets the measurement method Three methods can be applied THERMAL 90 RESPONSE TIME Range 5 min 10 min 15 min 20 min 30 min Default 15 min This setpoint sets the time required for a steady state current to indicate 90 of the actual value to approximately match the response of the relay to analog instruments The setpoint is visible only if MEASUREMENT TYPE i...

Page 445: ...ulate Phase A CURRENT DEMAND SETPOINTS PICKUP IA Demand PICKUP RUN Current Dmd1 PKP AND AND Command RESET OR LED ALARM THERMAL 90 RESPONSE TIME TIME INTERVAL Phase B Current IB Calculate Phase B CURRENT DEMAND Phase C Current IC Calculate Phase C CURRENT DEMAND IB Demand PICKUP RUN IC Demand PICKUP RUN OR Current Dmd1 PKP A Current Dmd1 PKP B Current Dmd1 PKP C SETPOINTS OUTPUT RELAYS Do Not Opera...

Page 446: ...5 min 20 min 30 min Default 15 min This setpoint sets the time required for steady state Real Power to indicate 90 of the actual value to approximately match the response of the relay to analog instruments The setpoint is visible only if MEASUREMENT TYPE is Thermal Exponential TIME INTERVAL Range 5 min 10 min 15 min 20 min 30 min Default 20 min This setpoint sets the time period over which the Rea...

Page 447: ...abled Alarm Latched Alarm Configurable OR SETPOINTS REAL PWR DEMAND MEASUREMENT TYPE Calculate Real Power Demand SETPOINTS REAL PWR DEMAND REAL POWER PICKUP P Demand PICKUP RUN RealPwr Dmd PKP AND AND Command RESET OR LED ALARM REAL PWR DEMAND THERMAL 90 RESPONSE TIME REAL PWR DEMAND TIME INTERVAL Three Phase Real Power P SETPOINTS OUTPUT RELAYS X Do Not Operate Operate FlexLogic Operands S LATCH ...

Page 448: ... min 30 min Default 15 min The setpoint sets the time required for a steady state Reactive Power to indicate 90 of the actual value to approximately match the response of the relay to analog instruments The setpoint is visible only if MEASUREMENT TYPE is Thermal Exponential TIME INTERVAL Range 5 min 10 min 15 min 20 min 30 min Default 20 min The setpoint sets the time period over which the Reactiv...

Page 449: ...tched Alarm Configurable OR SETPOINTS REACTIVE PWR DMD MEASUREMENT TYPE Calculate Reactive Power Demand SETPOINTS REACTIVE PWR DMD REACTIVE POWER PICKUP Q Demand PICKUP RUN ReactvPwr Dmd PKP AND AND Command RESET OR LED ALARM REACTIVE PWR DMD TIME INTERVAL Three Phase Reactive Power Q SETPOINTS SETPOINTS OUTPUT RELAY X Do Not Operate Operate FlexLogic Operands S LATCH Set Dominant R 89 1 cdr REAL ...

Page 450: ...0 RESPONSE TIME Range 5 min 10 min 15 min 20 min 30 min Default 15 min The setpoint sets the time required for a steady state Apparent Power to indicate 90 of the actual value to approximately match the response of the relay to analog instruments The setpoint is visible only if MEASUREMENT TYPE is Thermal Exponential TIME INTERVAL Range 5 min 10 min 15 min 20 min 30 min Default 20 min The setpoint...

Page 451: ...tched Alarm Configurable OR SETPOINTS APPARENT PWR DMD MEASUREMENT TYPE Calculate Apparent Power Demand SETPOINTS APPARENT PWR DMD APPARENT POWER PICKUP S Demand PICKUP RUN ApprntPwr Dmd PKP AND AND Command RESET OR LED ALARM APPARENT PWR DMD THERMAL 90 RESPONSE TIME APPARENT PWR DMD TIME INTERVAL Three Phase Apparent Power S SETPOINTS SETPOINTS OUTPUT RELAY X Do Not Operate Operate FlexLogic Oper...

Page 452: ... and cannot be used for billing purposes Energy quantities are displayed in MWh and MVarh with resolutions of 1 kWh and 1 kVarh respectively Path Setpoints Monitoring Functions Pulsed Outputs FUNCTION Range Disabled Enabled Default Disabled SIGNAL INPUT Range Power 1 Power 2 Power 3 Power 4 Dependant on order code Default Power 1 This setting provides the power element selection for the CT and VT ...

Page 453: ...Rh in steps of 0 001 MVARh Default 10 000 MVARh The setpoint specifies the positive VARhours threshold pulse increment after which the output pulse and output operand are set NEG VARHS PULSE RELAY X For details see Common Setpoints EVENTS Range Disabled Enabled Default Enabled TARGETS Range Disabled Self reset Latched Default Self Reset ...

Page 454: ...Wh REAL ENERGY NEGATIVE Wh ACTUAL VALUE SETPOINT NEG WHS PULSE INCREMENT STORING Wh AT PULSE Do Not Operate Operate RUN FlexLogic Operands Pos Varh Pulse OP SETPOINTS OUTPUT RELAYS X MVARh MVARhprev PMVARhP value MVARhprev RUN MVARh REACTIVE ENERGY POSITIVE VARh ACTUAL VALUE SETPOINT POS VARHS PULSE INCREMENT STORING VARh AT PULSE Do Not Operate Operate RUN FlexLogic Operands Neg Varh Pulse OP SET...

Page 455: ... value before counting operations begin as in the case where a substitute relay is installed in place of an in service relay or while the Counter is running COMPARE Range 2147483648 0 2147483647 Default 0 The setpoint sets the value to which the accumulated count value is compared Three FlexLogic output operands are provided to indicate if the present value is more than HI equal to EQL or less tha...

Page 456: ...for freezing capturing the accumulating count value into a separate register with the associated date and time of the operation while resetting the count to either 0 or the pre set value depending on the state of the Counter 1 Set to Pre set operand FREEZE COUNT Range Off Any FlexLogic operand Default Off The setpoint selects the FlexLogic operand for freezing capturing the accumulating count valu...

Page 457: ...OINT DGTL CNTR 1 RESET OFF 0 SETPOINT DGTL CNTR 1 FREEZE RESET OFF 0 SETPOINT DGTL CNTR 1 FREEZE COUNT OFF 0 OR OR AND AND SET TO PRE SET VALUE SET TO 0 RUN STORE DATE AND TIME SETPOINT DGTL CNTR 1 COMPARE COUNT COMPARE COUNT COMPARE DGTL CNTR 1 NAME DGTL CNTR 1 UNITS COUNT COMPARE FlexLogic Operand COUNTER 1 LOW SETPOINTS Do Not Operate Operate FlexLogic Operand COUNTER 1 HI SETPOINTS Do Not Oper...

Page 458: ...etect the overexcitation condition NOTE NOTE The harmonics monitored in this element is calculated from the phase currents unlike the second or fifth harmonic differential current used in the transformer differential element NOTE NOTE The harmonics are updated every protection pass The THD is updated every three cycles which is not recommended as a blocking signal Path Setpoints Monitoring Harmoni...

Page 459: ...divider is decreased from 3 to 2 The same happens if the magnitude of the fundamental magnitude on one of remaining two phases drops below the cut off level In this case the selected harmonic on this phase is dropped from summation and the divider is decreased to 1 MIN OPER CURRENT Range 0 03 to 1 00 x CT in steps of 0 01 Default 0 10 x CT This setting sets the minimum value of current required to...

Page 460: ... CURRENT IA MINIMUM RUN S LATCH Set Dominant R Phase A Current IA Phase B Current IB Phase C Current IC Phase A Harmonics Phase B Harmonics Phase C Harmonics IB MINIMUM IC MINIMUM SETPOINT OUTPUT RELAY X Do Not Operate Operate W1 Current Harmonics W1 Current Input Calculate Harmonic Derating Factor W1_HDF AND Phase A Harmonics Phase B Harmonics Phase C Harmonics W2 Current Harmonics Calculate Harm...

Page 461: ...ed by conventional feeder protection devices are not adequate for these types of grounded systems Instead a novel technique based on the transient reactive and transient active power principle can be applied as described in the following figure for the compensated Peterson coil The function of the Peterson coil is to compensate the capacitive current decreasing the fault arc current as well as lim...

Page 462: ...requency to precisely determine the fault direction Sub harmonic residual voltage and current band pass filters are implemented in the TGFD design After residual voltage and current signals pass through the band pass filter VN becomes VN due to the 90 shift As a healthy line is capacitive and a faulty line is inductive we can say that For VN and IN in opposite directions the feeder is faulty forwa...

Page 463: ...r Threshold is used to determine the residual fault direction To avoid overlap with the small P Q area minimum value is 3 W RESIDUAL VOLTAGE SUPERVISION Range 0 00 to 1 50 x VT in steps of 0 01 Default 0 12 x VT The Voltage Supervision pickup threshold is used to determine whether TGFD starts 10 of the nominal voltage is used which is 120 x 10 12V i e 0 12 x VT as the residual overvoltage threshol...

Page 464: ...dynamic threshold Q max average Q and evaluate Positive Negative Q Calculate dynamic threshold P max average P and evaluate Positive Negative P SETPOINT Power Threshold Directional Logic SETPOINT Residual Voltage Pickup Activate TGFD RMS V N Threshold Select Power P or Q SETPOINT BLOCK Off 0 AND SETPOINT Function Disabled Latched Alarm Alarm OR LED ALARM RESET Command S R LATCH TGFD Forward FlexLo...

Page 465: ...he 850 relay is packaged with one LVIO card consisting of one RTD input four DCmA inputs and seven DCmA outputs Additionally the relay can be furnished with up to two optional RTD cards each of them having 6 RTD input channels Only slots B and C can accept the optional RTD cards NOTE NOTE If only one RTD card is ordered at the time the relay is ordered this RTD card is always shown in slot B The o...

Page 466: ...t value for Type for each RTD is 100 Ω Platinum The protection RTD Trip and RTD Alarm from the menu are optional They respond to directly measured RTD TEMPERATURE RESISTANCE IN OHMS C F 100 Ω PT IEC 60751 120 Ω NI 100 Ω NI 10 Ω CU 40 40 84 27 92 76 77 30 7 49 30 22 88 22 99 41 82 84 7 88 20 4 92 16 106 15 88 45 8 26 10 14 96 09 113 00 94 17 8 65 0 32 100 00 120 00 100 00 9 04 10 50 103 90 127 17 1...

Page 467: ...active regardless of whether or not the RTD Trip or and RTD Alarm functions are enabled Path Setpoints RTD Temperature RTD 1 X Path Setpoints RRTD Temperature RRTD 1 X TRIP FUNCTION Range Disabled Trip Configurable Default Disabled If a trip is not required from the RTD select Configurable The Configurable setting enables the RTD without producing a trip NAME Range Up to 13 alphanumeric characters...

Page 468: ...NITORING ALARM DROPOUT DELAY Range 0 s to 600 s in steps of 1 s Default 0 s ALARM OUTPUT RELAY X For details see Common Setpoints BLOCK Range Off Any FlexLogic operand Default Off EVENTS Range Disabled Enabled Default Enabled TARGETS Range Disabled Self reset Latched Default Latched ...

Page 469: ...H S R RESET Command RTD 1 Trip PKP FLEXLOGIC OPERANDS RTD 1 Trip OP RTD 1 Alarm PKP FLEXLOGIC OPERANDS RTD 1 Alarm OP SETPOINT Trip Output Relay X Do Not Operate Operate SETPOINT Alarm Output Relay X Do Not Operate Operate OR tº Trip Temperature RUN Alarm Temperature SETPOINT Tº Alarm Temperature Resistance Temperature Convertion Name RTD 1 Type SETPOINT SETPOINT AND RUN RUN R 250 C R 40 C Tempera...

Page 470: ...g this element Path Setpoints Monitoring RTD Trouble FUNCTION Range Disabled Alarm Latched Alarm Default Disabled ALARM OUTPUT RELAY X For details see Common Setpoints EVENTS Range Disabled Enabled Default Enabled TARGETS Range Disabled Self reset Latched Default Latched Figure 7 28 RTD Trouble logic diagram 894178A1 cdr SETPOINT Latched Alarm Alarm Function Disabled Alarm OR RTD Trouble OP FLEXLO...

Page 471: ...ts Monitoring Loss of Comms FUNCTION Range Disabled Trip Alarm Latched Alarm Configurable Default Disabled INTERFACE Range Serial Serial Ethernet Ethernet All Default Serial Only the protocols associated with the selected interface are shown in this screen as options For example if Ethernet is selected select the Ethernet protocols to monitor The Ethernet protocols selection is defined as Ethernet...

Page 472: ...SETPOINTS BLOCK Off 0 Comms Status Inactive AN D Operate Output Relay1 TRIP LED TRIP OR O R AN D A N D SETPOINT FUNCTION Disabled 0 Trip Alarm Latched Alarm PICKUP DELAY LED ALARM RESET Command AN D S R LATCH LED PICKUP SETPOINTS Do Not Operate Operate OUTPUT RELAYS Configurable Loss of Comms PKP FLEXLOGIC OPERANDS Loss of Comms OP FLEXLOGIC OPERANDS Set Dominant ...

Page 473: ...p Bus Breaker Control Setpoint Group BF Initiate BF Setup AR Initiate AR Setup Level 1 Level 2 Level 3 Level 4 Breaker Failure Synchrocheck Manual Close Block Cold Load Pickup Undervoltage Restoration AR Rate Supervision AR Shot 1 to 4 AR Zone Coordination AR Current Supervision Bus Transfer Autoreclose CT Supervision Underfrequency Restoration FlexLogic Arc Flash Testing Data Capture Local Contro...

Page 474: ...roup between a setpoint inputs and inputs from functions the higher numbered group is made active For example if the inputs for Group 2 4 and 6 are all asserted the relay uses Group 6 If the logic input for Group 6 then becomes de asserted the relay uses Group 4 Some application conditions require that the relay does not change from the present active group This prevention of a setpoint group chan...

Page 475: ...BIT 16 Off OR AND OR AND OR AND OR AND OR AND OR AND AND AND AND AND FLEXLOGIC OPERAND S GROUP 5 ACTIVE FLEXLOGIC OPERAND S GROUP 4 ACTIVE FLEXLOGIC OPERAND S GROUP 3 ACTIVE FLEXLOGIC OPERAND S GROUP 2 ACTIVE FLEXLOGIC OPERAND S GROUP 1 ACTIVE AND OR AND OR AND OR AND OR AND OR AND OR TO PROTECTION SETPOINT GROUPS Setpoint Group 2 Setpoint Group 3 Setpoint Group 4 Setpoint Group 5 Setpoint Group 6...

Page 476: ... be accessed from the relay front panel PBs programmed for Open and Close or by contact inputs for Open and Close from PBs installed near the relay Hardcoded SLD PBs are designated for Tag Block and Bypass Block for each component upon selection In this mode the Local Open and Local Close setpoints for Breaker Control or Switch Control see the respective logic are active Remote when Remote Mode is...

Page 477: ... block and block bypass flags are also suspended With Select Before Operate set to Disabled the relay behaves similar to some other legacy relays where when in Local mode the breaker is directly controlled by pressing the Open and Close PBs without additional confirmation and when in Remote mode the breaker is directly controlled by executing the remote open and close commands from the configured ...

Page 478: ...res Local Control for breakers Local Control for switches When the block is active the letter B appears in the SLD next to the controlled component 894195A1 cdr MESSAGE SLD Breaker Selection 5 min Timer Clears the selection Setpoint Bkr Sw Select Timeout OR AND OR SLD Switch Selection PB ESCAPE BKR 1 BKR 2 BKR 3 Local Mode ON FLEXLOGIC OPERAND BKR 1 Selected FLEXLOGIC OPERANDS BKR 2 Selected BKR 3...

Page 479: ... opened pressing the PB Bypass will allow closing command If the bypass is active for the selected breaker or switch a letter By appears next to the symbol in the SLD Figure 8 5 SLD Pushbutton Bypass Block logic diagram 894197A1 cdr FLEXLOGIC OPERAND BKR X Selected SW X Selected AND S Latch R Non Volatile Latch Reset Dominant positive one shot Block PB BLOCK AND FLEXLOGIC OPERAND Block ON FLEXLOGI...

Page 480: ...o one breaker or switch at the time in the single line diagram Figure 8 6 Pushbutton Tag logic diagram FASTPATH The pushbuttons Tag Block and Bypass Block are used for both breakers and switches when selected in the SLD Only one component at the time can be selected in the SLD FASTPATH Tagging blocking or bypassing block can be performed in Local Mode and only when the component breaker or switch ...

Page 481: ...tatus detection logic FLEXLOGIC OPERAND BKR1 Selected from Bkr Sw selection logic AND FLEXLOGIC OPERAND Block ON from Local Block logic FLEXLOGIC OPERAND Bypass Block ON From Local Bypass Block logic The logic shows the local breaker control for Breaker 1 with Enabled and Disabled Select Before Operate setpoint FLEXLOGIC OPERAND BKR1 Rem Blk Open By FLEXLOGIC OPERAND BKR1 Rem Blk Open AND FLEXLOGI...

Page 482: ...sconnect Switch 1 when Select Before Operate setpoint is set to Enabled The local switch control is not available when SBO is set to Disabled SETPOINT Switch1 Local Open Off 0 Pushbutton ON 1 SETPOINT Local Mode Off 0 FLEXLOGIC OPERAND Local Mode ON Local Mode OFF LM Shows on display banner AND FLEXLOGIC OPERAND Tag ON from Tagging logic AND AND AND FLEXLOGIC OPERAND SWt1 Opened FLEXLOGIC OPERAND ...

Page 483: ... as blocking bypassing and tagging are reset Setting the SBO to Enabled enables the navigation and the selection of a component from the SLD so that the pushbuttons Open or Close from the front panel or those mounted in close proximity to the relay can be used in Local Mode only after the component is selected All flags such as blocking bypassing and tagging can be initiated during this mode Block...

Page 484: ...on 1 ON Pushbutton 10 ON Contact Input X Default Pushbutton 2 ON This setpoint is active when Local Mode is activated The switch close command can be initiated by the programmed faceplate pushbutton The setpoint appears in the Local Control Mode menu only when advanced SLD is selected when ordering the relay TAGGING Range Enabled Disabled Default Enabled When enabled tagging control is enabled and...

Page 485: ...nd 850 E single feeders provides control of one breaker while 850 D dual feeders and 850 P provide control of two breakers An additional remote breaker status is available for HMI status only Path Setpoints Control Breaker Control BKR1 2 REMOTE OPEN Range Off Any FlexLogic operand Default Off The setting specifies the input which when asserted initiates a Trip command to output relay 1 TRIP When t...

Page 486: ...CLOSE Range Off Any FlexLogic operand Default Off This setting specifies selection of an input which when asserted bypasses the asserted remote block close signal Close command is permitted for the breaker CLOSE SYNC SPVN BKR Range Bypass Sync 1 Cls Perm Default order code dependant e g Bypass or Sync 1Cls Perm This setpoint selects whether or not the closing of the breaker is supervised by the sy...

Page 487: ...Blk Cls By FLEXLOGIC OPERAND BKR1 Remote Open OPEN command Relay Ready 1 BKR1 Trip Relay Select Setpoints System Breakers BKR1 To Selected BKR 1 Trip Output CLOSE command BKR 1 Close Relay Select FLEXLOGIC OPERAND BKR1 Remote Close To Selected BKR 1 Close Output AND AND From Synchrocheck 1 Sync 1 BKR Cls Perm OR SETPOINTS CLOSE SYNCHROCHECK SPVN BKR 1 Bypass Sync 1 Cls Perm Setpoints System Breake...

Page 488: ...by assigning appropriate operands The control for each disconnect switch can be programmed to have Bypass Remote Block Open and Bypass Remote Block Close inputs These inputs can be programmed if temporary permission for open or close is required FASTPATH The switch Remote Block Open Remote Block Close Bypass Remote Block Open and Bypass Remote Block Close flags are inhibited when the setpoint Sele...

Page 489: ...of the operand assigned to this setpoint prevents the disconnect switch from opening REMOTE BLOCK CLOSE Range Off Any FlexLogic operand Default Off The assertion of the operand assigned to this setpoint prevents the disconnect switch from closing BYPASS REM BLK OPEN Range Off Any FlexLogic operand Default Off This setting specifies the selection of an input which when asserted bypasses the block t...

Page 490: ...XLOGIC OPERAND SW1 Rem Blk Open SW1 Rem Blk Open By FLEXLOGIC OPERAND SW1 Rem Blk Close SW1 Rem Blk Cls By Relay Ready 1 SW 1 Open Relay Select Setpoints System Switches SW1 to output relay selected to open SW1 FLEXLOGIC OPERAND SW1 Open Cmd Relay Ready 1 SW 1 Close Relay Select Setpoints System Switches SW1 to output relay selected to close SW1 FLEXLOGIC OPERAND SW1 Close Cmd from Control Mode lo...

Page 491: ... implemented pole discordance logic in the 850 D allows either detection of pole discordance externally using single contact input Figure 8 11 Detecting Pole Discordance externally contact based detection using 6 input contacts from 52a and 52b auxiliary breaker contacts per phase Figure 8 12 Pole Discordance detected by the relay current based detection any combination of the three detection meth...

Page 492: ...c operand typically contact input as an input from pole discordance detected externally by arranging the breaker auxiliary contacts PICKUP DELAY Range 0 100 to 6000 000 s in steps of 0 001 s Default 2 000 s This setting provides the definite time pickup delay If during a breaker open action all three poles are detected open before the timer expires the timer resets and no pole discordance is decla...

Page 493: ...iteria the primary contacts must be fully synchronized with the auxiliary contacts of the monitored switching element This means primary contacts and auxiliary contacts need to switch simultaneously CURRENT BASED DETECTION Range Disabled Enabled Default Disabled Selecting Enabled enables the setpoint CURRENT LIMIT associated with current based PD detection SIGNAL INPUT Range Dependant upon order c...

Page 494: ...figurable Set Dominant SETPOINTS Do Not Operate Operate OUTPUT RELAY1 X excluding trip selected outputs To output relay selected to trip the breaker FLEXLOGIC OPERAND Pole Discord 1 OP SETPOINT BKR Close Triggerl FlexLogic Operand Off 0 SETPOINT External Pole Discordance FlexLogic Operand Off 0 SETPOINT BRK Trip Trigger FlexLogic Operand Off 0 Contact based PD detection logic RUN SETPOINT Contacts...

Page 495: ...pen Ph C Open Ph B Open Ph A Open Ph C Open Ph B Open Ph A Open OR RUN Ph A pole 52a Ph B pole 52a Ph C pole 52a Contact Inputs Breaker auxiliary contact outputs Ph A pole 52b Ph B pole 52b Ph C pole 52b Contact Inputs Breaker auxiliary contact outputs AND AND AND AND AND AND AND AND AND AND AND AND AND OR Check for open poles Check for closed poles BRK Trip Trigger BRK Close Trigger From Pole Dis...

Page 496: ...1 B Fail to Open FLEXLOGIC OPERAND PD1 C Fail to Open OR OR OR SETPOINT PICKUP Ia Pickup Ib Pickup Ic Pickup Ia Pickup Ib Pickup Ic Pickup Ia Pickup Ib Pickup Ic Pickup Ia Pickup Ib Pickup Ic Pickup Ia Pickup Ib Pickup Ic Pickup Ia Pickup Ib Pickup Ic Pickup SETPOINT PICKUP Ia Pickup Ib Pickup Ic Pickup Ia Pickup Ib Pickup Ic Pickup Ia Pickup Ib Pickup Ic Pickup Ia Pickup Ib Pickup Ic Pickup Ia Pi...

Page 497: ...ut selected under Setpoints Inputs Virtual Inputs is set to Latched the On command initiated from this menu stays On and the status of this Virtual Input is also On until the Off command is received If the Virtual Input type is Self Reset the command and status of this Virtual Input reverts to Off after one evaluation of the FlexLogic equations 894185A1 cdr FLEXLOGIC OPERAND PD1 A Fail to Cls FLEX...

Page 498: ...erand Default Off These settings select a FlexLogic operand to be assigned as an input to the Trip Bus LATCHING Range Enabled Disabled Default Disabled The setting enables or disables latching of the Trip Bus output This is typically used when lockout is required or user acknowledgement of the relay response is required RESET Range Off Any FlexLogic operand Default Off The trip bus output is reset...

Page 499: ...BUS 1 BLOCK Off 0 LED ALARM LATCHED ALARM Command AND S R LATCH SET DOMINANT Configurable FlexLogic Operands Trip Bus 1 OP SETPOINTS TRIP BUS 1 LATCHING Disabled 0 SETPOINTS TRIP BUS 1 PICKUP DELAY TRIP BUS 1 DROPOUT DELAY t PKP t DPO SETPOINTS Do Not Operate Operate OUTPUT RELAYS 3 X SETPOINTS TRIP BUS 1 INPUT 2 Off 0 SETPOINTS TRIP BUS 1 INPUT 16 Off 0 OR RESET AND SETPOINTS TRIP BUS 1 RESET OR ...

Page 500: ...status Each type of supervision is equipped with a time delay after which a failed breaker is declared and Trip signals are sent to all breakers required to clear the zone The delays are associated with breaker failure timers 1 2 and 3 Timer 1 logic is supervised by current level only If fault current is detected after the delay interval an output is issued The continued presence of current indica...

Page 501: ...AL INPUT Range dependant upon the order code Default CT Bank 1 J1 PH RETRIP SUPERV PICKUP Range 0 050 to 30 000 x CT in steps of 0 001 x CT Default 1 000 x CT The setpoint specifies the phase current Retrip level which when exceeded after Breaker Failure initiation will Retrip its own breaker The setting is set to detect the lowest expected fault current on the protected circuit NTRL RETRIP SUPERV...

Page 502: ...ssing time current supervision reset time and the time required for the breaker auxiliary contact to open T3 PICKUP DELAY Range 0 000 to 6000 000 s in steps of 0 001 s Default 0 120 s The setting provides a delay for Timer 3 logic which is supervised with breaker status only 52b indication The timer is set to the expected opening time of the circuit breaker plus a safety margin intended to overcom...

Page 503: ...the protected circuit where significant change in current level is expected for example breakers with opening resistors Neutral current supervision is used to provide increased sensitivity DROPOUT DELAY Range 0 000 to 6000 000 s in steps of 0 001 s Default 0 100 s The setting is used to set the period of time for which the Breaker Fail output is sealed in This timer must be coordinated with the au...

Page 504: ...e used with the help of FlexLogic but for easier setting the Breaker Failure function is provided with a BF1 INITIATE submenu INITIATE IN1 15 Range Off Any FlexLogic operand Default Ph TOC 1 OP The setpoint selects the FlexLogic operand that initiates the Breaker Failure scheme typically the trip signals from internal protection functions FASTPATH The default setting includes the following protect...

Page 505: ...V PICKUP IN AND OR SETPOINT BF1 BREAKER CLOSED Off 0 OR RESET SETPOINTS BF1 SUPERVISION Current 52b Current 52b AND AND IA PICKUP IB PICKUP IC PICKUP RUN RUN RUN IN PICKUP RUN SETPOINTS BF1 PHASE HIGHSET PICKUP BF1 NTRL HIGHSET PICKUP IA PICKUP IB PICKUP IC PICKUP RUN RUN RUN IN PICKUP RUN BF1 PHASE LOWSET PICKUP BF1 NTRL LOWSET PICKUP SETPOINTS BF1 T1 PICKUP DELAY t1 PKP 0 SETPOINTS BF1 T2 PICKUP...

Page 506: ...e Arc flash light event is also possible using Light as the only detection parameter for alarm purposes In addition customized logic can be designed using individual AF1 Light PKP and Arc Flash 1 S OP operands from different light sensors in the FlexLogic engine Path Setpoints Control Arc Flash Arc Flash 1 FUNCTION Range Disabled Trip Alarm Latched Alarm Configurable Default Disabled The selection...

Page 507: ... Light Sensor 3 Input Factory PKP Level Auto Calibration Level for Sensor 3 Light Sensor 2 Input Factory PKP Level Auto Calibration Level for Sensor 2 OR AND AND AND AND OR Arc Flash 1 OP FlexLogic Operands Arc Flash 1 S1 OP Arc Flash 1 S2 OP Arc Flash 1 S3 OP Arc Flash 1 S4 OP FlexLogic Operands RESET Command AF 1 Light 1 PKP AF 1 Light 2 PKP AF 1 Light 3 PKP AF 1 Light 4 PKP FlexLogic Operands A...

Page 508: ...hout angle compensation and the frequency difference F slip frequency It can be defined as the time it would take the voltage phasor BUS or LINE to traverse an angle equal to 2 Φ at a frequency equal to the frequency difference F This time can be calculated by where Φ phase angle difference in degrees F frequency difference in Hz Example For the values of Φ 30 and F 0 1 Hz the time during which th...

Page 509: ... VT setting is 0 the Synchrocheck will work However if this difference is bigger than 5 the Synchrocheck will not work Path Setpoints Control Synchrocheck 1 X FUNCTION Range Disabled Enabled Default Disabled BUS VOLTS INPUT Range dependant upon the order code Default J2 3VT The setting provides selection of the Bus Volts input either three phase voltages from the three phase VTs connected to the r...

Page 510: ...he breaker to be closed when one or both of the two voltages Bus Voltage or and Line Voltage are below the maximum voltage threshold A dead or live source is declared by monitoring the voltage level Six options are available The voltage levels that determine whether a source is dead or live are configurable in the four setpoints following this one The DEAD SOURCE PERMISSION range is as follows Dis...

Page 511: ...teps of 0 01 x VT Default 0 20 x VT This setpoint establishes a maximum voltage magnitude for the Line Voltage Below this magnitude the Line Voltage input used for Synchrocheck is be considered Dead or de energized BLOCK Range Off Any FlexLogic operand Default Off The Synchrocheck is blocked when the selected operand is asserted Typically 52a the circuit breaker closed contact is used to block Syn...

Page 512: ... ΔΦ MAX ANGLE DIFF Vbus LIVE BUS V MIN SETPOINT LIVE BUS VOLTS MIN Vline LIVE LINE V MIN SETPOINT LIVE LINE VOLTS MIN Vbus DEAD BUS V MAX SETPOINT DEAD BUS VOLTS MAX Vline DEAD LINE V MAX SETPOINT DEAD LINE VOLTS MAX D LINE D BUS D LINE OR D BUS D LINE XOR D BUS OR XOR AND AND AND AND AND OR AND AND AND AND AND AND OR Sync1 Close Perm Sync1 Live Bus Sync1 Live Line Sync1 Dead Bus Sync 1Dead Line M...

Page 513: ...Default Off If set to On the operation of the PHASE IOC 1 2 protection element is blocked after the Manual Close Blocking condition is detected BLOCK NEUTRAL IOC 1 2 3 4 Range Off On Default Off If set to On the operation of the NEUTRAL IOC 1 2 protection element is blocked after the Manual Close Blocking condition is detected BLOCK GROUND IOC 1 2 3 4 Range Off On Default Off If set to On the oper...

Page 514: ...P Range 1 to 100 in steps of 1 Default 0 The setpoint determines the characteristics of the SENSITIVE GROUND TOC 1 protection element by raising the Pickup level RAISE NEG SEQ TOC 1 2 PKP Range 1 to 100 in steps of 1 Default 0 The setpoint determines the characteristics of the NEGATIVE SEQUENCE TOC 1 protection element by raising the Pickup level SELECT SETPOINT GROUP Range Active Group 1 2 3 4 5 ...

Page 515: ...inant Configurable FlexLogic Operand Manual Cls Blk OP 5 s SETPOINTS Do Not Operate Operate OUTPUT RELAYS 3 to 7 AND AND SETPOINT MANUAL CLS BLOCK INTERVAL OR To TOC Pickup Raise IOC Blocking and Setting Group Change OR FLEXLOGIC OPERAND BKR 1 MANUAL CLOSE FLEXLOGIC OPERAND AR 1 ENABLED FLEXLOGIC OPERAND COLD LOAD 1 OP FLEXLOGIC OPERAND TRIP ON Relay 1 Aux Relay X ON FLEXLOGIC OPERAND Upon selecti...

Page 516: ...aying to 300 after 1 second 200 after 2 seconds and 150 after 3 seconds See the following figure for details Figure 8 22 Cold Load Pickup A Cold Load condition can be initiated in two ways 1 Automatically responding to a loss of source of the feeder by detecting that all phase currents drop below 5 of the nominal current for an amount of time greater than the Outage Time Before Cold Load setpoint ...

Page 517: ...P algorithm EXTERNAL INITIATION Range Off Any FlexLogic operand Default Off The setpoint selects the FlexLogic operand digital input virtual input or remote input that initiates the Cold Load Pickup scheme bypassing the Outage Time Before Cold Load OUTAGE T BEFORE COLD LOAD Range 0 000 to 6000 000 s in steps of 0 001 s Default 1000 000 s The setting provides a definite time after which it is expec...

Page 518: ...Range 0 to 100 in steps of 1 Default 0 The setpoint determines the characteristics of the GROUND TOC 1 protection element by raising the Pickup level RAISE SENS GND TOC 1 2 PKP Range 0 to 100 in steps of 1 Default 0 The setpoint determines the characteristics of the SENSITIVE GROUND TOC 1 protection element by raising the Pickup level RAISE NEG SEQ TOC 1 2 PKP Default 0 Range 0 to 100 in steps of ...

Page 519: ...OINTS Do Not Operate Operate OUTPUT RELAYS 3 to 7 IA 0 05 p u IB 0 05 p u IC 0 05 p u Phase B current IB Phase C current IC RUN RUN RUN AND SETPOINTS COLD LOAD PICKUP BLOCK Off 0 AND Phase A current IA SETPOINTS OUTAGE T BEFORE COLD LOAD AND OR SETPOINTS EXTERNAL INITIATION Off 0 OR COMPARATORS IA 0 05 p u IB 0 05 p u IC 0 05 p u RUN RUN RUN OR SETPOINTS COLD LOAD T BEFORE RESET AND To TOC Pickup ...

Page 520: ... the breaker from tripping shortly after it is automatically closed The settings of this function produce Pickup and Close flags Once the Undervoltage Restoration is initiated by any of the user defined elements the Undervoltage Restoration Pickup flag is asserted when the measured voltages on the programmed number of phases are above the MINIMUM value The Undervoltage Restoration Close flag is as...

Page 521: ...int from Phase Undervoltage 1 element menu RESTORE DELAY Range 0 000 to 6000 000 s in steps of 0 001 s Default 10 000 s The setting provides a definite restore time delay Instantaneous operation is selected by a restore time delay setting of 0 000 s INCOMPLETE SEQUENCE TIME Range 1 to 10000 min in steps of 1 min Default 100 min The setting provides a definite reset time delay SYNCHROCHECK SUPERVIS...

Page 522: ...reset Latched Default Self reset FASTPATH Upon voltage recovery i e measured voltage above programmed setpoint and Close output relay selected as Self Reset type the UF Restore operating condition and hence the Close output relay will reset automatically after the breaker is detected closed If the Close output relay is selected as Pulsed type the output relay will stay closed until the programmed ...

Page 523: ...RUN AND SETPOINTS UV RESTORE PHASES FOR OPERATION OPERATE ANY ONE ALL THREE ANY TWO PICKUP ANY ONE ALL THREE ANY TWO OR Ph UV Restore PKP Aux UV Restore OP FlexLogic Operands S LATCH Set Dominant R SETPOINTS Phase UV 1 OP Phase UV 2 OP Aux UV 1 OP Aux UV 2 OP OR OR Aux UV Restore PKP OR OR Disabled Alarm Latched Alarm Configurable Close AND INITIATION OR OR SETPOINTS OUTPUT RELAYS 3 7 Do Not Opera...

Page 524: ...s also enabled in order to prevent the breaker from tripping shortly after it is automatically closed The settings of this function produce Pickup and Close flags Once Underfrequency Restoration is initiated by the user selected operand the Underfrequency Restoration Pickup flag is asserted when the measured frequency and voltage of the specified source are above the MINIMUM value The Underfrequen...

Page 525: ...Restoration element to operate FASTPATH The voltage and frequency used here should be associated with the initiation signal For example if the UF restore scheme is triggered by Underfreq 1 OP the voltage and frequency values in the Underfrequency 1 element should be applied RESTORE DELAY Range 0 000 to 6000 000 s in steps of 0 001 s Default 10 000 s The setting provides a definite restore time del...

Page 526: ...ed UF Restore CLOSE command is sent directly to output 2 For other outputs logic has to be created for supervision as required BLOCK Range Off Any FlexLogic operand Default Off OUTPUT RELAY X For details see Common Setpoints EVENTS Range Disabled Enabled Default Enabled TARGETS Range Disabled Self reset Latched Default Self reset ...

Page 527: ...etpoint UF Restore initiation None AND SETPOINTS UF RESTORE MINIMUM FREQUENCY f MINIMUM FREQUENCY f RUN SETPOINTS UF RESTORE RESTORE DELAY t RSR 0 UF Restore OP FlexLogic Operands UF Restore PKP AND AND Command RESET OR LED ALARM WYE DELTA VA VAB VB VBC VC VCA OR AND Command RESET SETPOINTS UF RESTORE INCOMPLETE SEQUENCE TIME t IST 0 Status Input to BKR1 Close Relay Select output relay Vx Positive...

Page 528: ...omers 1 and 2 connect sources of electrical energy to two busses which could be paralleled through the Bus Tie breaker The normal system configuration is with both incoming breakers closed and the bus tie breaker open The transfer scheme implemented in the 850 relay is known as Open Transfer with an Open before Close operation sequence This means that the faulty incomer is removed from service bef...

Page 529: ... N O SOURCE Ι 1 φ φ or φ G OR 2 φ φ OR 3 φ G 1 φ φ or φ G OR 2 φ φ OR 3 φ G 3 43 Local Rem 43 Local Rem OPTIONAL 43 10 1 2 3 43 83 BLOCK TRANSFER SCHEME LOGIC Dead Bus Dead Line Dead Bus Max Volts Dead Line Max Volts ΙΙ 2 R 51G T2 87N T2 87N T2 86 T2 63 50P 2 51P 2 50N 2 51N 2 27 2 Time 27 2 Inst 25 2 METERING 94 2 52 a 33 LS 850 2 V V BUS LINE T2 N C SOURCE ΙΙ 1 φ φ or φ G OR 2 φ φ OR 3 φ G 1 φ φ...

Page 530: ...ach relay which obey the following table It is required to connect one contact to each relay This switch selects the breaker that trips in the eventuality that all three breakers become closed to prevent the two incoming systems to remain connected in parallel The contacts can be either normally open or normally closed depending on the logic of the corresponding input used for this purpose If cust...

Page 531: ... Incomer 1 Relay 1 to initiate a transfer the following sequence of events will take place Relay 1 trips Incomer 1 breaker Breaker 1 Relay 1 issues a close signal to the 850 3 on the Bus Tie breaker Relay 3 When relay 850 3 receives the close command from Relay 1 it is captured and retained until either the Bus Tie breaker Breaker 3 closes or the Block Transfer logic input is received Relay 850 3 ...

Page 532: ...AKER Logic Diagram below and Transfer Bus Tie setting 850 RELAY INCOMER 1 When the INCOMER 1 function is selected the following display is available INC 1 BKR CONNECTED Range Off Any FlexLogic operand Default Off The setpoint selects the FlexLogic operand digital input virtual input or remote input used to inhibit transfer if Incomer breaker 1 cannot be used to pass current from the source to the ...

Page 533: ... input used to provide a condition for Selected to Trip breaker logic if the bus tie breaker is racked in connected and closed TIE BKR CONNECTED Range Off Any FlexLogic operand Default Off The setpoint selects the FlexLogic operand digital input virtual input or remote input used to provide permission for Transfer if Bus Tie breaker is racked in connected The Transfer Scheme can be applied to any ...

Page 534: ...e Transfer sequence can be originated from the upstream protection Typically an auxiliary contact from the tripping device 94 is fed to one of the 850 contact inputs and set as Source Trip TIMED UV ON THIS SOURCE Range Off Any FlexLogic operand Default Off The setpoint selects the FlexLogic operand digital input virtual input or remote input used to initiate Transfer for loss of source Typically a...

Page 535: ...y on the other relay as this source is the other source is experiencing low voltage for the other relay DELAY THIS SOURCE Range 0 000 to 6000 000 s in steps of 0 001 s Default 1 000 s The setting provides selection of a time interval from the reset of the overcurrent elements selected on this source during which the low voltage instantaneous is allowed to block transfer FAULT CURRENT PICKUP IN 1 t...

Page 536: ...s available INC 2 CB CONNECTED Range Off Any FlexLogic operand Default Off The setpoint selects the FlexLogic operand digital input virtual input or remote input used to inhibit transfer if Incomer breaker 2 cannot be used to pass current from the source to the load for example when the breaker is in rack out or test position This setpoint also provides the condition for Selected to Trip breaker l...

Page 537: ... input used to provide a condition for Selected to Trip breaker logic if the bus tie breaker is racked in connected and closed TIE BKR CONNECTED Range Off Any FlexLogic operand Default Off The setpoint selects the FlexLogic operand digital input virtual input or remote input used to provide permission for Transfer if Bus Tie breaker is racked in connected The Transfer Scheme can be applied to any ...

Page 538: ...e Transfer sequence can be originated from the upstream protection Typically an auxiliary contact from the tripping device 94 is fed to one of the 850 contact inputs and set as Source Trip TIMED UV ON THIS SOURCE Range Off Any FlexLogic operand Default Off The setpoint selects the FlexLogic operand digital input virtual input or remote input used to initiate Transfer for loss of source Typically a...

Page 539: ...n the other relay as this source is the other source is experiencing low voltage for the other relay DELAY THIS SOURCE Range 0 000 to 6000 000 s in steps of 0 001 s Default 1 000 s The setting provides selection of a time interval from the reset of the overcurrent elements selected on this source during which the low voltage instantaneous is allowed to block transfer FAULT CURRENT PICKUP IN 1 to 6...

Page 540: ...or test position This setpoint also provides a condition for Selected to Trip breaker logic Flex logic operand TIE CB CON CLSD is required for Incomer 1 and Incomer 2 Circuit Breaker transfer logic and for 2 close relay block FASTPATH For non draw out breakers without associated disconnect switches this setpoint must be set as ON TIE BKR SELECTED TO TRIP Range Off Any FlexLogic operand Default Off...

Page 541: ...uxiliary breaker contact or a Breaker Closed state from the Breaker Detection control element is used to indicate close state of the breaker for preventing the two incoming power systems from being connected in parallel and permitting transfer logic CLOSE TIE FROM INCOMER 1 Range Off Any FlexLogic operand Default Off The setpoint selects the FlexLogic operand digital input virtual input or remote ...

Page 542: ...ected and closed Incomer 2 Breaker is racked in connected and closed No transformer lockout or source trip is present No undervoltage is detected on any of the two sources No faults on the load side of the circuit breaker Incomer 2 Relay The Incomer 2 setting is selected under the TRANSFER FUNCTION setpoint The transfer scheme is not blocked from the Block Transfer input Bus Tie Breaker is racked ...

Page 543: ... TRIP Off 0 SETPOINT TRANSFER BLOCK TRANSFER Off 0 SETPOINT TRANSFER INC1 CB CONNECTED Off 0 SETPOINT TRANSFER INC 1 CB CLOSED Off 0 FlexLogic Operand INC 1 TO CLS TIE CB FlexLogic Operand INC 1 CB CON CLSD AND BLOCK 2 CLOSE RLY AND AND SETPOINT TRANSFER DELAY SELECT TO TRIP Tdstt OR SETPOINT TRANSFER BLCK TRIP ON DBL LOSS Enabled 1 TRIP 1 TRIP RLY OR AND AND AND AND AND Disabled 0 0 SETPOINT TRAN...

Page 544: ...E TRIP Off 0 SETPOINT TRANSFER BLOCK TRANSFER Off 0 SETPOINT TRANSFER INC2 CB CONNECTED Off 0 SETPOINT TRANSFER INC 2 CB CLOSED Off 0 FlexLogic Operand INC2 TO CLS TIE CB FlexLogic Operand INC2 CB CON CLSD AND BLOCK 2 CLOSE RLY AND AND SETPOINT TRANSFER DELAY SELECT TO TRIP Tdstt OR SETPOINT TRANSFER BLCK TRIP ON DBL LOSS Enabled 1 TRIP 1 TRIP RLY OR AND AND AND AND AND Disabled 0 0 SETPOINT TRANS...

Page 545: ...threshold value setpoints for voltage check dead sources associated with the Synchrocheck function must be set 892761A2 cdr SETPOINT TRANSFER FUNCTION Disabled Incomer 1 AND Incomer 2 Tie AND FlexLogic Operand Tie BKR Trfer Rdy SETPOINT INC1 BKR CONN CLSD Off 0 SETPOINT CLS TIE BKR FROM INC 1 Off 0 SETPOINT TIE BKR SLCTD TO TRIP Off 0 SETPOINT BLOCK TRANSFER Off 0 FlexLogic Operand Tie BKR Con Cls...

Page 546: ... the load side of the breaker This fault is cleared by Time Overcurrent protection on the incomer or an upstream breaker The 50P element is set above the maximum current caused by either the bus motor contribution to an upstream fault or the maximum current during low voltage conditions The 50N element is be set to detect arcing ground faults but allow permitted unbalances Fault detectors are requ...

Page 547: ...e ground fault on a measured phase reducing that phase voltage but leaving the other two phases at a higher voltage If experience shows this setpoint causes a delay of transfer presenting problems it is occasionally raised to a maximum of 0 40 of Pickup The user establishes all other setpoints for this element If breaker status is taken from Breaker function it is necessary to set all digital inpu...

Page 548: ...850 2 DWG 850 3 DWG Ground Connection Terminal A3 and GND STUD connect to switchgear ground bus DC Common for G Slot NOTES 1 Optional 2 Limit Switch LS or Truck Operated Contact TOC for drawout breakers Used isolator switches closed or jumper for non drawout breakers 3 This 52 b auxiliary contact will be included if necessary This is when due to breakers characteristics and performance a race may ...

Page 549: ...bus DC Common for G Slot NOTES 1 Optional 2 Limit Switch LS or Truck Operated Contact TOC for drawout breakers Used isolator switches closed or jumper for non drawout breakers 3 This 52 b auxiliary contact will be included if necessary This is when due to breakers characteristics and performance a race may occur between tripping of the incomer breaker and closing of the tie breaker 4 A maintenance...

Page 550: ... G9 G8 G7 G4 G5 Spare 10 G10 G11 G12 F24 F23 F22 Auto TRF Ready 850 3 For Bus Tie 3 DC Common for F Slot 52a Contact Maintenance Switch Breaker Closed MS Maintenance Switch F16 CI4 Note 1 850 1 DWG 850 2 DWG Ground Connection Terminal A3 and GND STUD connect to switchgear ground bus DC Common for G Slot DC Negative DC Positive Trip CONTACT G9 G8 G12 G11 850 1 Co11 Co12 DWG 850 1 DWG G9 G8 G12 G11 ...

Page 551: ...aker again The scheme has gone to Lockout and must be reset before further reclosures are permitted The scheme may also be sent into Lockout when the incomplete sequence timer times out or when a block cancel or breaker failure signal occurs while in Reclose in Progress If enabled the Lockout from the Rate Supervision function or the Lockout from the Zone Coordination function may also send the sc...

Page 552: ...e first Reclosure initiation exceeds the AR1 RESET TIME setpoint value This Autoreclosure reset returns the shot counter to zero Each of the four possible shots has an independently settable dead time One additional timer can be used to increase the initial set dead times 1 to 4 by a delay equal to AR1 DELAY This offers enhanced setting flexibility using FlexLogic operands to turn the additional t...

Page 553: ...efore Reclosure goes to Lockout because the fault is permanent The dead time and Overcurrent characteristics for each Reclosure shot are entered in the subsequent setpoints groups AR1 RECLOSE SHOT 1 to AR1 RECLOSE SHOT 4 BLOCK CANCEL Range Off Any FlexLogic operand Default Off The Autoreclose is blocked when the selected operand or input is asserted The selected operand or input blocks the Autorec...

Page 554: ...f setpoint RST LOCKOUT ON MANUAL CLS is set to ON The Lockout is cleared and the shot counter is set to 0 RST LOCKOUT ON MANUAL CLS Range Off On Default Off The setpoint allows the Autoreclose scheme to be reset from Lockout if the breaker is manually closed regardless of whether the breaker remains closed or not This setting overrides RST LOCKOUT IF BKR CLOSED RST LOCKOUT IF BKR CLOSED Range Off ...

Page 555: ...ose shot with a sufficient margin FASTPATH Set the RESET TIME timer to a delay longer than the INCOMPLETE SEQUENCE timer REDUCE MAXIMUM TO 1 2 or 3 Range Off Any FlexLogic operand Default Off The setpoint selects the FlexLogic operand digital input virtual input or remote input that changes the maximum number of shots from the initial setting to 1 2 or 3 SYNCHROCHECK SUPERV Range Bypass Sync1 Clos...

Page 556: ...eclose has been initiated but the breaker is not closed and Autoreclose isn t blocked This output can be used to block the operation of a transformer tap changer during a Reclose sequence LOCKOUT OUTPUT RELAY X For details see Common Setpoints Selects the relays required to operate when Autoreclose scheme goes to Lockout No further circuit breaker closure is initiated until the Autoreclose Lockout...

Page 557: ...0 OR AND OR AND AND AND OR AR1 Breaker is closed AR1 Initiate AR1 Reset from LO AR1 LO Locked Out Default FLEXLOGIC OPERAND AR1 Lockout SETPOINTS AR1 INCOMPLETE SEQUENCE TIME 0 OR SETPOINTS AR1 DEAD TIME 1 0 SETPOINTS AR1 DEAD TIME 2 0 SETPOINTS AR1 DEAD TIME 3 0 SETPOINTS AR1 DEAD TIME 4 0 From Page 2 AND AND AND AND SETPOINTS AR1 DELAY 0 OFF 0 SETPOINTS AR1 ADD DELAY AND AND OR To Page 2 FROM BR...

Page 558: ...OR OR SETPOINTS AR1 MAXIMUM NUMBER SHOTS MAX 1 MAX 2 MAX 3 MAX 4 SETPOINTS AR1 REDUCE MAX TO 1 OFF 0 SETPOINTS AR1 REDUCE MAX TO 2 OFF 0 SETPOINTS AR1 REDUCE MAX TO 3 OFF 0 STATUS AUTORECLOSE 1 SHOT NUMBER IN EFFECT 0 1 2 3 4 SHOTS REMAINING 4 0 1 2 3 TOTAL SHOT COUNT To Page 1 From Page 1 OR OR OR OR AR1 coordinating From Page 5 OUTPUT 2 CLOSE AR1 CLOSE To Page 5 To Page 3 AR1 close From Page 4 A...

Page 559: ... scheme typically the Trip signals from external devices INITIATE IN1 to IN15 Range Off Any FlexLogic operand Default Ph TOC 1 OP The setpoint selects the FlexLogic operand digital input virtual input or remote input that initiates the Autoreclose scheme typically the Trip signals from internal protection functions FASTPATH The default setting includes the following protection functions Ph TOC 1 O...

Page 560: ...ys before the first second third or fourth automatic breaker reclosure and should be set longer than the estimated deionized time following a three pole Trip There are four time delay settings one per each reclosure to be configured and used to time out before the first second third or fourth breaker reclosure BLOCK PHASE IOC 1 2 3 4 Range Off On Default Off If set to ON for the selected shot s th...

Page 561: ...The setpoint determines the characteristics of the GROUND TOC 1 protection element by raising the Pickup level RAISE SENS GND TOC 1 2 PKP Range 0 to 100 in steps of 1 Default 0 The setpoint determines the characteristics of the SENSITIVE GROUND TOC 1 protection element by raising the Pickup level RAISE NEG SEQ TOC 1 2 PKP Range 0 to 100 in steps of 1 Default 0 The setpoint determines the character...

Page 562: ...function the Lockout can be reset only if the rate per hour drops below the setpoint value or if the Rate Supervision data is cleared by EnerVista 8 Series Setup software FUNCTION Range Disabled Lockout Alarm Default Disabled The selection of the Lockout setting enables the Autoreclose Rate Supervision function Lockout The selection of the Alarm setting enables the Autoreclose Rate Supervision fun...

Page 563: ...EMENTS SHOTS FROM 60 MIN AGO SETPOINTS CLEAR AR 1 RATE DATA YES NO SETPOINTS AR1 MAX RATE PER HOUR RUN Counter Max Rate SETPOINTS AR1 RATE SUPERV FUNCTION Disabled 0 Alarm FLEXLOGIC OPERAND AR1 Rate High AR1 Rate High Lockout To Page 1 AR1 RATE SUP OUTPUT RELAYS 3 7 SETPOINTS Do Not Operate Operate From Page 2 AR1 close PAGE 3 AR1 RATE SUPERVISION Lockout OR AND FLEXLOGIC OPERAND AR1 Rate HI Lockt...

Page 564: ... Enabled FUNCTION Range Disabled Enabled Default Disabled SIGNAL INPUT Range dependant upon the order code Default CT Bank 1 J1 This setting provides selection of three phase current input source for current supervision NOTE NOTE Since AR1 applies to BKR1 and AR2 applies to BKR2 the user must select the CT bank that is associated with the breaker to which the autoreclosure applies 3 SHOTS FOR CURR...

Page 565: ...N SYSTEM INSTRUCTION MANUAL 8 93 LOCKOUT Range Disabled Enabled Default Disabled The selection of the Enabled setting enables Current Supervision to Lockout if the fault current exceeds the specified level EVENTS Range Disabled Enabled Default Enabled ...

Page 566: ...AR1 CUR SUPERV LOCKOUT Enabled Disabled 0 RUN SETPOINTS AR1 3 SHOTS FOR CURRENT ABOVE I Setting RUN SETPOINTS AR1 1 SHOT FOR CURRENT ABOVE I Setting RUN SETPOINTS I Setting RUN FLEXLOGIC OPERAND AR1 ShotRdc to 3 FLEXLOGIC OPERAND AR1 ShotRdc to 1 FLEXLOGIC OPERAND AR1 ShotRdc to 2 FLEXLOGIC OPERAND AR1 ShotRdc to LO AR1 MAX NUMBER OF SHOTS 1 AR1 MAX NUMBER OF SHOTS 2 AR1 MAX NUMBER OF SHOTS 3 AR1 ...

Page 567: ...ning for fault clearance After the first detection of an external Reclose the shot counter is incremented by one and the Autoreclose scheme Reset Timer is initiated If needed protection setpoint groups can be changed as shown in the figure Both the upstream and downstream relays should be programmed with the same number of shots to lockout and number of trips before protection is blocked This will...

Page 568: ...y be quite low for an end fault on a long feeder with a weak source NEUTRAL CURRENT PICKUP Range 0 050 to 30 000 x CT in steps of 0 001 x CT Default 0 300 x CT The setpoint specifies neutral fault current level which when exceeded signifies a downstream fault PICKUP TIME Range 0 000 to 6000 000 s in steps of 0 001 s Default 0 020 s If the phase or neutral fault current exists for more than the Coo...

Page 569: ...RRENT PKP Ia I PKP RUN Ib I PKP RUN Ic I PKP RUN In I PKP RUN SETPOINTS AR1 ZC NTRL CURRENT PKP AND OR AND SETPOINTS AR1 ZC PICKUP DROPOUT TIME AND AND AND AND From Page 1 AR1 Breaker is closed AR1 Initiate From Page 2 AR1 Shot Count MAX AND AR1 Coordinating lockout AR1 Coordinating To Page 2 To Page 1 FLEXLOGIC OPERAND AR1 Coordinating PAGE 5 AR1 ZONE COORDINATION Tp Td Tp Td Tp Td Tp Td Tp AR1 Z...

Page 570: ...sequence voltage If voltages are not available or they are available but in delta configuration the differential check can be used The differential check uses calculated zero sequence current and ground current to calculate differential current If ground current is not available the symmetry check can be used The symmetry check operates by calculating a quotient or a ratio of minimum current over ...

Page 571: ... the calculated neutral current 3I0 In such condition the total current difference ICTSdiff should be zero If the CTS Diff Current goes above the set minimum permitted value Setpoints Monitoring CT Supervision Diff Current PKP ICTSdiff it can be concluded that the fault is either in the ground current path CT or in one of the phase current path CTs A dynamic correction factor or a Slope Setpoints ...

Page 572: ...for it FASTPATH The CT Supervision element ground current input must come from a core balance CT The Transformer neutral point grounding or residual ground input method should not be used for differential check Symmetry Check The symmetry check continuously calculates the quotient Q between measured minimum and maximum phase current magnitudes Under normal balanced load conditions this value is cl...

Page 573: ...his avoids nuisance alarms under fault conditions and unnecessary blocking of protection elements during faults PICKUP DELAY Range 0 000 to 6000 000 s in steps of 0 001 Default 0 000 s The pickup delay setting applies to sequence differential and symmetry check It adds an additional delay between pickup and operate of the element This is a common setting for the whole element but each check runs i...

Page 574: ... Range 0 050 to 30 000 x CT in steps of 0 001 Default 0 500 x CT This setting represents the threshold for the differential current calculated between the calculated zero sequence current and the measured ground current from a core balance CT If the differential current magnitude is higher than the pickup value the differential check operates DIFF SLOPE Range 0 to 100 in steps of 1 Default 10 The ...

Page 575: ...o drop to 0 causing the symmetry check function to pickup The quotient pickup value should be kept lower than 0 5 to allow for unbalance between the phase currents SYM MIN CURRENT Range 0 050 to 30 000 in steps of 0 001 Default 0 100 x CT This setting is used to compare the Imax against the minimum current For the quotient to be calculated the Imax must be above the minimum current level This avoi...

Page 576: ...e I max PKP if Slope 0 RUN I CTSdiff I max Select I max max I a b c I min min a b c AND SETPOINTS Sym Quotient PKP Q I min I max Q PKP RUN SETPOINTS Sym Min Current I max Sym Min Current t Pickup Delay 3 Individual Timers with same delay setting SETPOINT pkp 20 ms OR CTS Alarm OP FlexLogic Operands CTS Seq Check OP CTS Diff Check OP CTS Sym Check OP CTS Seq Check PKP CTS Diff Check PKP CTS Sym Che...

Page 577: ...itive sequence current and an insignificant amount of positive sequence voltage These noted indications of fuse failure could also be present when faults are present on the system so a means of detecting faults and inhibiting fuse failure declarations during these events is provided Once the fuse failure condition is declared it is sealed in until the cause that generated it disappears An addition...

Page 578: ...S R LATCH 1 Set Dominant Configurable FlexLogic Operands VT Fuse Fail 1 OP VT Fuse 1 V Loss TIMER 2 cyc 20 cyc SETPOINTS Do Not Operate Operate OUTPUT RELAY 3 X V_1 0 05 p u RUN I_1 0 075 p u RUN V_1 0 80 p u RUN I_1 0 05 p u RUN V_1 I_1 AND OR AND AND OR S R S R LATCH 2 Reset Dominant LATCH 3 Reset Dominant AND AND AND OR I_1 I_1 0 04 p u I_2 I_2 0 04 p u I_0 I_0 0 04 p u Where I is 2 cycles old ...

Page 579: ... Display Hierarchy This chapter describes the FlexLogic and Testing setpoints in detail Flexlogic setpoints provide access to the variable logic used with the relay Testing setpoints include simulated current and voltage inputs and test operations for LEDs input contacts and output relays Setpoints Device System Inputs Outputs Protection Monitoring Control FlexLogic Level 1 Level 2 Testing ...

Page 580: ...software Setpoints Menu The Protection Summary page as seen in the EnerVista 8 Series Setup software Setpoints menu is described in detail in Protection Summary The SLD Configurator as seen in the EnerVista 8 Series Setup software Setpoints menu is described in detail in SLD Configurator The Modbus User Map as seen in the EnerVista 8 Series Setup software Setpoints menu is described in detail in t...

Page 581: ...og and digital outputs The major sub systems of a generic 8 Series relay involved in this process are shown as follows NOTE NOTE For information on the Logic Designer and Logic Monitor menu items see Help User Manual Logic Designer Monitor in the EnerVista 8 Series Setup software Figure 9 4 FlexLogic Display Hierarchy The states of all digital signals used in the 850 are represented by flags FlexL...

Page 582: ...lements schemes and outputs is field programmable through the use of logic equations that are sequentially processed The use of virtual inputs and outputs in addition to hardware is available internally and on the communication ports for other relays to use distributed FlexLogic FlexLogic allows customization of the relay through a series of equations that consist of operators and operands The ope...

Page 583: ...r 2 or corresponding fiber Detection of any trouble in light sensor 3 or corresponding fiber Detection of any trouble in light sensor 4 or corresponding fiber Detection of any trouble in any of the 4 light sensors or corresponding fibers Autoreclose AR1 Enabled AR1 Disabled AR1 Man Cls Blk AR1 In Progress AR1 Lockout AR1 Initiated AR1 Shot Cnt 0 AR1 Shot Cnt 1 AR1 Shot Cnt 2 AR1 Shot Cnt 3 AR1 Sho...

Page 584: ...fer INC1 BKR Con Clsd INC1 Close Tie BKR INC1 Trnsfr Ready INC2 BKR Con Clsd INC2 Close Tie BKR INC2 Trnsfr Ready Tie BKR Trefr Ready Tie BKR Con Clsd Transfer Not Ready Transfer Initiated Incomer 1 circuit breaker is connected and closed Closing Bus Tie circuit breaker command from Incomer 1 Transfer is ready from Incomer 1 Incomer 2 circuit breaker is connected and closed Closing Bus Tie circuit...

Page 585: ...ement has picked up on raising frequency The frequency rate of change 1 element has operated on raising frequency The frequency rate of change 1 element has picked up on lowering frequency The frequency rate of change 1 element has operated on lowering frequency Front Panel Targets LEDs Pushbuttons Any Target PB X On PB X Off Testing On Testing Off Generated upon activation of any target message P...

Page 586: ...C 2 Neutral IOC 1 has picked up Neutral IOC 1 has operated The same set of operands as per Neutral IOC 1 Neutral Directional OC Ntrl Dir OC FWD Ntrl Dir OC REV Neutral directional overcurrent forward has operated Neutral directional overcurrent reverse has operated Neutral OV Ntrl OV X PKP Ntrl OV X OP Neutral overvoltage element 1 has picked up Neutral overvoltage element 1 has operated Negative ...

Page 587: ... Ph OV 1 PKP A Ph OV 1 PKP B Ph OV 1 PKP C Ph OV 1 OP Ph OV 1 OP A Ph OV 1 OP B Ph OV 1 OP C Ph OV 2 At least one phase of phase overvoltage 1 has picked up Phase A of phase overvoltage element 1 has picked up Phase B of phase overvoltage element 1 has picked up Phase C of phase overvoltage element 1 has picked up At least one phase of phase overvoltage 1 has operated Phase A of phase overvoltage ...

Page 588: ... Trouble OP RTD Trouble has picked up RTD Trouble has operated Security ROLE ADMIN ACT ROLE OPERATOR ACT ROLE OBSERVER ACT Administrator role is active and is set to true when that is the case Operator role is active and is set to true when that is the case Observer role is active and is set to true when that is the case Self Test Error Any Minor Error Any Major Error see the Relay Minor Self Test...

Page 589: ...l overload 1 has operated Phase A of thermal overload 2 produced alarm Phase B of thermal overload 2 produced alarm Phase C of thermal overload 2 produced alarm At least one phase of thermal overload 2 produced alarm Phase A of thermal overload 2 has picked up Phase B of thermal overload 2 has picked up Phase C of thermal overload 2 has picked up At least one phase of thermal overload 2 has picked...

Page 590: ...ar OP UV Var Restore UV Reactive Power Trip has picked up UV Reactive Power Trip has operated Circuit breaker re closing command is asserted Virtual Input 1 to 32 VI ON VI OFF any virtual input number Virtual Outputs 1 to 32 VO ON VO OFF Flag is set logic 1 Flag is set logic 0 VT Fuse Failure VT Fuse Fail1 OP VT Fuse1 V Loss VT fuse failure detector 1 has operated VT fuse 1 failure has lost voltag...

Page 591: ... the 16 previous parameters AND 2 AND 16 2 input AND gate 16 input AND gate Operates on the 2 previous parameters Operates on the 16 previous parameters NOR 2 NOR 16 2 input NOR gate 16 input NOR gate Operates on the 2 previous parameters Operates on the 16 previous parameters NAND 2 NAND 16 2 input NAND gate 16 input NAND gate Operates on the 2 previous parameters Operates on the 16 previous para...

Page 592: ...automatically reset If it is necessary to re initialize FlexLogic during testing for example it is suggested to power the unit down then back up Timers Path Setpoints FlexLogic Timers There are 32 identical FlexLogic timers available These timers can be used as operators for FlexLogic equations TIMER 1 TYPE Range Milliseconds Seconds Minutes Default Milliseconds The setpoint is used to select the ...

Page 593: ...latile Latches Latch 1 16 NV LATCH 1 FUNCTION Range Disabled Enabled Default Disabled The setpoint enables or disables the Non volatile Latch function NV LATCH 1 TYPE Range Reset Dominant Set Dominant Default Reset Dominant The setting characterizes NV LATCH 1 to be set or reset dominant NV LATCH 1 SET Range Any FlexLogic operand Default Off If asserted this specified FlexLogic operand SET NV LATC...

Page 594: ...Graphics section for more details Logic Design Last Saved Logic Design Last Compiled and FlexLogic Editor Last Saved Each of these three read only variables holds the time stamp that represents the time that the operation of the respective variable was performed 1 When no Logic New file creation is present these timestamps are set to default text representations 2 Time stamps are displayed in the ...

Page 595: ...e when a user tries to open the FlexLogic Equation Editor of a particular device or file If the Logic Designer screen is open and in Edit mode a message prompts to save any changes The FlexLogic Equation Editor is not launched If the Logic Designer is open and in saved mode no edits to save or compile the Logic Designer screen is closed and then the FlexLogic Equation Editor launch is initiated So...

Page 596: ...ure 9 6 FlexLogic Graphic Example FlexElements There are 8 identical FlexElements A FlexElement is a universal comparator that can be used to monitor any analog actual value measured or calculated by the relay or a net difference of any two analog actual values of the same type Depending on how the FlexElement is programmed the effective operating signal could be either a signed signal Signed sele...

Page 597: ...e Up to 13 alphanumeric characters Default FlexEl 1 INPUT 1 Range Off any FlexAnalog signal Default Off This setting specifies the first input non inverted to the FlexElement Zero is assumed as the input if this setting is set to Off For proper operation of the element at least one input must be selected Otherwise the element will not assert its output operands 894017 1 CDR FUNCTION SETTING Enable...

Page 598: ...er direction is set the element picks up when the operating signal exceeds the PICKUP value If the Under direction is set the element picks up when the operating signal falls below the PICKUP value The HYSTERESIS setting controls the element drop out Notice that both the operating signal and the pickup threshold can be negative when facilitating applications such as reverse power alarms The FlexEl...

Page 599: ... 13 8 kV power system Phase VT Connection Wye Phase VT Secondary 66 4 V Phase VT Ratio 120 1 phase to neutral primary voltage 120 66 4 7968 V Aux VT Connection Vab Aux VT Secondary 115 V Aux VT Ratio 120 1 phase phase primary voltage 13800V Phase CTs Primary 2000 A Ground CT Primary 500 A Frequency 60Hz Detecting voltage difference The voltage difference between calculated phase phase voltage deri...

Page 600: ...A FlexElement settings Input 1 J1 InInput 2 J1 Ig Operating Mode Absolute Input Comparison Mode Level Direction Over Pickup 200A 2000A 0 1 pu When no CT saturation conditions exist if the difference between the neutral current and the ground current becomes more than 200 Amps primary this can be treated as an indication of an internal ground fault which should be cleared With IBASE max 2000A 500A ...

Page 601: ...centage step of 0 1 Simple V Hz ratio detection for protected equipment V HzBASE 1 00High V Hz ratios in the power system are harmful for the insulation of the protected equipment transformer generator or elsewhere in the power system If not detected it can lead to excessive heat and degradation of the insulation which will damage the equipment A FlexElement can be used for simple detection of V H...

Page 602: ...erence becomes 2 C the hysteresis would be calculated as 5 C 100 C 2 C 100 C 3 C 100 C 0 03 pu Therefore Hysteresis 0 03 pu 100 0 05 60 High Breaker Arcing current detection High breaker arcing current can be detected by using a FlexElement during the opening of a breaker One or more FlexElements can be configured for detecting levels of maximum arcing current during the tripping of a particular b...

Page 603: ...he 8 Series can simulate current and voltage inputs when the Simulation feature is enabled Other test operations are also possible such as the LED lamp test of each color contact input states and testing of output relays Pre Fault Setpoints Device System Inputs Outputs Protection Monitoring Control FlexLogic Level 1 Level 2 Level 3 Level 4 Setup Testing Simulation Test LEDs Contact Inputs Output R...

Page 604: ...N STATE Range Disabled Prefault State Fault State Postfault State Default Disabled Program the Simulation State to Disabled if actual system inputs are to be monitored If programmed to any other value the relay is in test mode and actual system parameters are not monitored including Current Voltage and Contact Inputs The system parameters simulated by the relay are those in the following section t...

Page 605: ...he installed Order Code options Path Setpoints Testing Simulation Pre Fault J2 Prefault Van Vbn Vcn Vx Voltage Range 0 00 to 300 00 V in steps of 0 01 Default 0 00 V J2 Prefault Van Vbn Vcn Vaux Angle Range 359 9 to 0 0 in steps of 0 1 Default 0 0 J2 LEA 1 2 Prefault Van Vbn Vcn Voltage Range 0 00 to 30 00 V in steps of 0 01 Default 0 00 V J2 LEA 1 2 Prefault Van Vbn Vcn Angle Range 359 9 to 0 0 i...

Page 606: ... CONNECTION setpoint is Delta Voltages are set in secondary VT units The CT and VT Bank availability is dependent on the installed Order Code options Path Setpoints Testing Simulation Fault J2 Fault Van Vbn Vcn Vx Voltage Range 0 00 to 300 00 V in steps of 0 01 Default 0 00 V J2 Fault Van Vbn Vcn Vaux Angle Range 359 9 to 0 0 in steps of 0 1 Default 0 0 J2 LEA1 X Fault Van Vbn Vcn Vx Voltage Range...

Page 607: ...0 00 to 300 00 V in steps of 0 01 Default 0 00 V J2 Postfault Van Vbn Vcn Vaux Angle Range 359 9 to 0 0 in steps of 0 1 Default 0 0 J2 LEA1 X Postfault Van Vbn Vcn Voltage Range 0 00 to 30 00 V in steps of 0 01 Default 0 00 V J2 LEA1 X Postfault Van Vbn Vcn Angle Range 359 9 to 0 0 in steps of 0 1 Default 0 0 J1 Postfault Phase la lb lc Range 0 000 to 46 000 x CT in steps of 0 001 x CT Default 0 0...

Page 608: ...o program the state of each contact input when in test mode The number of Contact Inputs available is dependent on the installed Order Code options NOTE NOTE Contact Inputs setpoints here in test will revert to default values at power up Path Setpoints Testing Contact Inputs CI 1 X Range Off On Default Off The item name displays the user configurable name for the contact input Output Relays The Ou...

Page 609: ...850 FEEDER PROTECTION SYSTEM INSTRUCTION MANUAL 10 1 850 Feeder Protection System Chapter 10 Status GE Grid Solutions Status Figure 10 1 Main Status Screen ...

Page 610: ...d object To select the breaker switch press the enter key Upon pressing the Enter key the tab labels change to the programmable tab pushbutton labels and a flash message for the breaker selected appears Flash Message BKR1 Selected Pressing Escape de selects the breaker switch and the tab pushbutton labels Annunciator The graphical annunciator panel emulates a physical annunciator panel Indicators ...

Page 611: ...eir operation is not available from the setup software Path Status Summary Tab Pushbuttons The initial view of the Tab Pushbutton controls is the Summary page which shows the status of all 20 pushbuttons To operate the pushbuttons navigate to the individual pages where the tab pushbuttons can be used to activate them Figure 10 4 Tab pushbutton summary left and detailed view right Only the tab push...

Page 612: ...through and navigate to page 1 with pushbuttons 1 to 4 Alternatively escape to the overall summary screen and navigate to any desired page of pushbuttons Breakers Path Status Breaker Breaker X Status STATE Range Not Configured Opened Closed Disconnected State Unknown The Unknown state is displayed upon discrepancy of the 52a and 52b contacts for more than 30 milliseconds TRIP COIL Range Not Set Fa...

Page 613: ... Product Serial The relay serial number Order Code The installed Order Code MAC Address 1 The MAC address for copper Ethernet port 1 Remote CANBUS RMIO The commissioned value of the CANBUS IO is displayed here If the relay has never been commissioned then the value is None i e default None and Range 6 alphanumeric characters NUM of RMIO RTDs The number of remote RTDs detected Comms CPU The Informa...

Page 614: ...ound in the relay Last Poll Date Time The date and time on which the last measurements were recorded in the format MM DD YY and HH MM SS Average Humidity The average of all the humidity measurements taken over time last 1 hr by the EAM Maximum Humidity The maximum humidity measurement taken by the EAM since it began recording data Minimum Humidity The minimum humidity measurement taken by the EAM ...

Page 615: ...t Trip Data feature stores the same 64 FlexAnalog quantities that are configured for the Event Data Last Trip Data has a Clear Last Trip Data command that clears the Last Trip Data storage The Event Number of Last Trip value contains the number of the last event of a Trip type This is a platform feature and a Basic option so it has no dependencies There is no Enabling Disabling of this feature It ...

Page 616: ...ere see above In the Parameter column the value indicates the label on the output terminal The Value column indicates the present ON or OFF state of the output relay Output Relay 1 TRIP Path Status Output Relays The status of all output relays is shown here see above The value in the Name column indicates the name given to the output relay In this case Trip relay is named Output relay 1 The value ...

Page 617: ...cally as a toggle switch in either the On state or the Off O state Figure 10 6 Status of Virtual Inputs HMI Figure 10 7 Status of Virtual Inputs Enervista 8 Series Setup software Virtual Outputs Path Status Virtual Outputs The state of all virtual outputs is shown here see next figure The value for each Virtual Output is shown on the control panel graphically as a toggle switch in either the On st...

Page 618: ...f a digital point status change or an analog exceeding its deadband The 850 server supports a subset of the server features described in part 7 2 of the IEC61850 standard GOOSE MESSAGING As indicated above the 850 supports 3 GOOSE transmissions and eight GOOSE receptions as shown in the table below Launch speed is measured by comparing the time stamp in SOE of digital remote output status change t...

Page 619: ...d to map any FlexLogic operand into the IED 61850 information model Default value is Off GOOSE STATUS Path Status Communications GOOSE Status GOOSE 1 to 64 Status Range OFF ON Default OFF GOOSE HEADER Path Status Communications GOOSE HDR Status GOOSE 1 to 64 H Status Range OFF ON Default OFF GOOSE ANALOG Path Status Communications GOOSE Analog AV FLOAT 1 to 24 Range Default 0 0 SINT32 1 to 8 Range...

Page 620: ...ault YES NUMBER OF CONNECTED CLIENTS Default 0 CLIENT 1 8 IP ADDRESS Range 0 0XFFFFFFFF Default 0 ACTIVITY STATUS The communication state for each enabled communication type is shown by its value The main CPU and Comms software sets resets the active bits for all enabled communication types The communication state bits are not latched Path Status Communications Activity Status SERIAL MODBUS Range ...

Page 621: ...S Path Status Communications Connections MMS TCP Maximum Range 0 to 99 in steps of 1 Default 0 MMS TCP Remaining Range 0 to 99 in steps of 1 Default 0 Modbus TCP Maximum Range 0 to 99 in steps of 1 Default 0 Modbus TCP Remaining Range 0 to 99 in steps of 1 Default 0 DNP TCP Maximum Range 0 to 99 in steps of 1 Default 0 DNP TCP Remaining Range 0 to 99 in steps of 1 Default 0 IEC 104 Maximum Range 0...

Page 622: ...tatus of system components is displayed here Path Status Device Status RUNNING SAVING CID to FLASH Range YES NO Default NO CID HANDLING DONE Range YES NO Default YES SELF TEST FAULT Range YES NO Default NO MAINTENANCE Range YES NO Default NO IN SERVICE Range YES NO Default YES PICKUP STATE Range YES NO Default YES BREAKER X CONNECTED Range YES NO Default YES BREAKER X CLOSED Range YES NO Default N...

Page 623: ...TP to be globally unique so one can always know which clock is grandmaster in a system with multiple grandmaster capable clocks RTC Accuracy is the estimated maximum time difference at present in the Real Time Clock RTC considering the quality information imbedded in the received time signal how long the relay has had to lock to the time source and in the case of time signal interruptions the leng...

Page 624: ...ch a Trip caused Lockout Shots Remaining Range 0 to 65535 in steps of 1 The SHOTS REMAINING value displays the number of reclose shots that can still be performed The value displayed is contained in the Shot Limit memory Each time a reclose shot is performed in a given sequence this Shot Limit is reduced by one The Shot Limit can also be reduced to any given value less than the programmed value by...

Page 625: ...es all phasor angles in a given relay are referred to an AC input channel pre selected as the phase A voltage If there is no voltage input the phase A current is used for angle reference The phase angle of the reference signal always display zero degrees and all other phase angles are relative to this signal If the preselected reference signal is not measurable at a given time the phase angles are...

Page 626: ...of these quantities are recalculated every protection pass and perform protection and monitoring functions Displayed metered quantities are updated approximately three 3 times a second for readability All phasors and symmetrical components are referenced to the A N voltage phasor for wye connected VTs to the A B voltage phasor for delta connected VTs or to the phase A current phasor when no voltag...

Page 627: ...An example of the HMI display showing actual currents is shown here The measured values can also be displayed in the PC EnerVista 8 Series program The same example of actual currents displayed in the EnerVista 8 Series program is shown as follows Figure 11 4 Current Metering Screen EnerVista 8 Series The complete list of actual values available in the Metering menu is covered in the following sect...

Page 628: ...R PROTECTION SYSTEM INSTRUCTION MANUAL SUMMARY CHAPTER 11 METERING Summary Path Metering Summary The Metering Summary menu consists of three display screens including a graphical presentation of key phasor quantities ...

Page 629: ...ctance Range 230 000 00 to 230 000 00 mS in steps of 0 01 mS Default 0 00 mS This value represents the magnitude of the neutral admittance seen by the relay Ntrl Susceptance Range 230 000 00 to 230 000 00 mS in steps of 0 01 mS Default 0 00 mS This value represents the magnitude of the neutral susceptance seen by the relay Currents NOTE NOTE The number of Currents supported is order code dependent...

Page 630: ... 0 to 359 9 Positive Sequence Angle I_1 Angle Range 0 0 to 359 9 Negative Sequence Angle I_2 Angle Range 0 0 to 359 9 Ground Differential Igd Range 0 000 to 12000 000 A Ground Differential Angle Igd Angle Range 0 0 to 359 9 Load I Range 0 0 to 100 0 NOTE NOTE Percent of load to trip is calculated from the phase with the highest current reading This metered value is the ratio between the highest ph...

Page 631: ...Vca Range 0 00 to 600000 00 V Neutral Vn Range 0 00 to 600000 00 V Auxiliary Vaux Range 0 00 to 600000 00 V Phase A Van RMS 0 00 V Range 0 00 to 600000 00 V Phase B Vbn RMS Range 0 00 to 600000 00 V Phase C Vcn RMS Range 0 00 to 600000 00 V Phase to Phase AB Vab RMS Range 0 00 to 600000 00 V Phase to Phase BC Vbc RMS Range 0 00 to 600000 00 V Phase to Phase CA Vca RMS Range 0 00 to 600000 00 V Neu...

Page 632: ...sitive Sequence V1 Range 0 00 to 600000 00 V Negative Sequence V2 Range 0 00 to 600000 00 V Zero Sequence Angle V0 Angle Range 0 0 to 359 9 Positive Sequence Angle V1 Angle Range 0 0 to 359 9 Negative Sequence Angle V2 Angle Range 0 0 to 359 9 Frequency Path Metering Frequency 1 J Frequency Current Input J1 CT Range 2 000 to 90 000 Hz Frequency Rate of Change Current Input J1 CT Range 20 00 to 20 ...

Page 633: ...t are displayed here only if the element is enabled Path Metering Fast Underfrequency Fast Frequency Range 20 000 to 70 000 Hx in steps of 0 01 Fast Rate of Change Range 120 00 to 120 00 Hz s in steps of 0 01 Harmonics 1 Harmonics 2 NOTE NOTE The number of Harmonics supported is order code dependent All values relate to phase currents measured on the input cards J1 etc Path Metering Harmonics 1 J1...

Page 634: ...element are calculated and updated every protection pass Path Metering Harmonic Detection Synchrocheck Path Metering Synchrocheck If a Synchrocheck function setting is Disabled the corresponding metering display is not displayed Bus Voltage Magnitude Bus Volts Magnitude Range 0 00 to 600000 00 V Bus Voltage Angle Bus Volts Angle Range 0 0 to 359 9 Bus Voltage Frequency Bus Volts Frequency Range 2 ...

Page 635: ...nerator Generator Inductive Inductive Resistive Resistive Generator Generator 8 SERIES IED G G M M G G VCG IC VAG IA VBG IB VCG IC VAG IA VBG IB VCG IC VAG IA VBG IB VCG IC VAG IA VBG IB Q Q Q Q PF Lead PF Lead PF Lead PF Lead PF Lag PF Lag PF Lag PF Lag PF Lag PF Lag PF Lag PF Lag PF Lead PF Lead PF Lead PF Lead Q Q Q Q P P P P P P P P IA IA IA IA S VI LOAD LOAD Resistive Resistive LOAD LOAD Watt...

Page 636: ... kW Phase A Reactive Ph A Reactive Range 214748364 8 kvar to 214748364 7 kvar Phase B Reactive Ph B Reactive Range 214748364 8 kvar to 214748364 7 kvar Phase C Reactive Ph C Reactive Range 214748364 8 kvar to 214748364 7 kvar Phase A Apparent Ph A Apparent Range 0 kVA to 214748364 7 kVA Phase B Apparent Ph B Apparent Range 0 kVA to 214748364 7 kVA Phase C Apparent Ph C Apparent Range 0 kVA to 2147...

Page 637: ... 7 MWh Neg WattHours Cost Default 0 0 Positive Var Hours Pos VarHours Range 0 0 Mvarh to 214748364 7 Mvarh Negative Var Hours Neg VarHours Range 0 0 Mvarh to 214748364 7 Mvarh Power Factor The power factor value input to the power factor element s is displayed here Note that the value may not be equal to the power factor value displayed under Metering Power 1 since the supervision conditions are a...

Page 638: ...Clear Records Max Current Demand Path Metering Current Demand 1 X Cur1 Reset Demand D T MM DD YY 00 00 00 Cur1 Ph A B C Demand Range 0 000 to 12000 000 A Cur1 Max Ph A B C Demand Range 0 000 to 12000 000 A Cur1 D T Ph A B C Demand MM DD YY HH MM SS Power Demand This menu shows the real reactive and apparent power demands along with their maximums The maximums can be cleared by resetting them from ...

Page 639: ...Power Path Metering Directional Power The effective operating quantities of the sensitive directional power elements are displayed here The display may be useful to calibrate the feature by compensating the angular errors of the CTs and VTs with the use of the RCA and CALIBRATION settings Directional Power 1 Range 214748364 8 kW to 214748364 7 kW Default 0 0 kW Directional Power X Range 214748364 ...

Page 640: ...reshold Pos P Range 1500 00 W to 1500 00 W in steps of 0 01 W Default 0 00 W Dynamic Threshold Neg P Range 1500 00 W to 1500 00 W in steps of 0 01 W Default 0 00 W CT Supervision CTS Path Metering CT Supervision CT Supervision 1 X CTS X SYM Imin Range 0 000 to 120000 000 A in steps of 0 001 Default 0 000 A This value is the minimum phase current magnitude of the three phases for the symmetry check...

Page 641: ...rent Range 0 00 to 120000 00 A in steps of 0 01 Sensor 1 X Light Level Range 0 00 to 300000 0 Lu in steps of 0 1 Sensor 1 X Max Light Level Range 0 00 to 300000 0 Lu in steps of 0 1 RTDs Path Metering RTDs NOTE NOTE The Temperature can be displayed in Celsius or Fahrenheit The selection is made in Setpoints Device Installation Temperature Display RTD 1 13 Range 40 to 250 C 40 to 482 F Temperatures...

Page 642: ...emperatures 250 C are displayed as Open RTD RTD 1 13 Max Date Time Range DD MM YY hh mm ss RRTD Maximums Path Metering RRTD Maximums NOTE NOTE The Temperature can be displayed in Celsius or Fahrenheit The selection is made in Setpoints Device Installation Temperature Display Reset RRTD Date Time Range DD MM YY hh mm ss NOTE NOTE Maximum RRTD values can be cleared reset by setting the value of Setp...

Page 643: ...are displayed in pu values using the definitions of the base units in the Definitions of the Base Unit for the FLEXELEMENT table This table is in the Setpoints FlexLogic FlexElements section FlexElement Operating Signals FlexEI 1 Op Signal FlexEI 2 Op Signal FlexEI 3 Op Signal FlexEI 4 Op Signal FlexEI 5 Op Signal FlexEI 6 Op Signal FlexEI 7 Op Signal FlexEI 8 Op Signal ...

Page 644: ...11 20 850 FEEDER PROTECTION SYSTEM INSTRUCTION MANUAL FLEXELEMENTS CHAPTER 11 METERING ...

Page 645: ...t number equal to the number of events that have occurred since the recorder was cleared The event number is incremented for each new event The Event Recorder captures contextual data associated with the last 1024 events listed in chronological order from most recent to oldest Events for a particular element are captured if the setpoint Events from its menu is selected to Enabled By default the Ev...

Page 646: ...displayed Path Records Fault Reports NUMBER OF REPORTS This value shows the number of reports since the last clear LAST TRIP DATE TIME Range MM DD YY HH MM SS This value is the date and time on which the last report was generated LAST CLEAR DATE TIME Range MM DD YY HH MM SS This value is the date and time on which the record was cleared TYPE OF FAULT Range N A AG BG CG AB BC CA ABG BCG CAG ABC Def...

Page 647: ... RESISTIVE WYE DELTA VA VAB VB VBC VC VCA Vn or V0 Neutral Current 3I0 Current Inputs Voltage Inputs FAULT DISTANCE CALCULATION RUN FAULT REPORT Z_1 INDUCTIVE FAULT REPORT Z_0 RESISTIVE FAULT REPORT Z_0 INDUCTIVE FAULT REPORT UNITS OF LENGTH FAULT REPORT LENGTH FAULT REPORT Z_0 SYS RESISTIVE FAULT REPORT Z_0 SYS INDUCTIVE RECORDS FAULT REPORT DATE FAULT REPORT TIME FAULT REPORT TYPE OF FAULT FAULT...

Page 648: ...d the values displayed here can be used as the reference for user settings The values are saved into non volatile memory to avoid the loss of data during the power down period Path Records Breakers Records Breaker Health TOTAL BREAKER TRIPS Range 0 to 10000 in steps of 1 TRIPS SINCE LAST RESET Range 0 to 10000 in steps of 1 ALARM COUNTER Range 0 to 100 in steps of 1 LAST TRIP TIME Range 0 TO 42949...

Page 649: ...2 cyc in steps of 0 01 Digital Counters The present status of the sixteen Digital Counters is shown here The status of each Counter with the user defined Counter name includes the accumulated and frozen counts the count units label also appears Also included is the date and time stamp for the frozen count The Counter microseconds frozen value refers to the microsecond portion of the time stamp Pat...

Page 650: ... operand is set to Low when there is a successful communication attempt The Time of Last Successful Poll is updated if the update for all pooled data was success This is a timestamp value for the last successful read Path Records Remote Modbus Device Device 1 Status DEVICE STATUS Range Offline Online Default Offline LAST SUCCESSFUL POLL Range MM DD YYYY HH MM SS Default 01 01 2000 00 00 This is a ...

Page 651: ...47483648 to 2147483647 in steps of 1 Default 0 Up to 64 FlexAnalog operands can be shown here The displayed text see Item Name field in EnerVista 8 Series Setup software is the FlexAnalog name defined in the Generic Modbus Device Setpoint label field in the CID file The value displayed is based on the Data Type and the Units field defined in the Generic Modbus Device Setpoint for a specific analog...

Page 652: ...rds The Clear Records command is accessible from the front panel and from the EnerVista 8 Series Setup software Path Records Clear Records Records can be cleared by assigning On to the appropriate setting FASTPATH The Clear Records command is also available from Device Clear Records where the allowable settings also include FlexLogic operands ...

Page 653: ...map for testing troubleshooting and maintaining connected devices See the 8 Series Protective Relay Communications Guide for modbus memory map details Path Maintenance Update Firmware Selecting Update Firmware loads new firmware into the flash memory See Loading New Relay Firmware in Chapter 3 Interfaces Software Interface Upgrading Relay Firmware Path Maintenance Environmental Awareness Health Re...

Page 654: ... products The 850 has an Environmental Awareness Module EAM to record environmental data over the life of the product The patented module measures temperature humidity surge pulses and accumulates the events every hour in pre determined threshold buckets over a period of 15 years Retrieve this data in the form of a histogram using EnerVista Setup Software to ensure any change in the operating cond...

Page 655: ...CHAPTER 13 MAINTENANCE ENVIRONMENTAL HEALTH REPORT 850 FEEDER PROTECTION SYSTEM INSTRUCTION MANUAL 13 3 Figure 13 1 Environmental Report ...

Page 656: ...tion of active alarms relay display messages and LED indications 3 Visual inspection for any damage corrosion dust or loose wires 4 Event recorder file download with further events analysis Out of service Maintenance 1 Check wiring connections for firmness 2 Analog values currents voltages RTDs analog inputs injection test and metering accuracy verification Calibrated test equipment is required 3 ...

Page 657: ...limitations and disclaimers see the GE Digital Energy Terms and Conditions at https www gegridsolutions com multilin warranty htm For products shipped before 1 October 2013 the standard 24 month warranty applies Revision history Table A 1 Revision History MANUAL P N RELEASE DATE 1601 0298 A1 5 December 2013 1601 0298 A2 12 December 2013 1601 0298 A3 15 January 2014 1601 0298 A4 May 2014 1601 0298 ...

Page 658: ...E 850 D and 850 P options Note and link to online store for available order codes updated Order codes split into 850 E 850 D 850 P and updated for 2 2 including new I O cards RMIO order codes added Functional diagrams added for 850 D dual and 850 P Feature tables updated and split for 850 D 850 E 950 P Operator role clarified Specifications Fast Underfrequency RTDs Contact Inputs Output Relays Eth...

Page 659: ... INPUT setpoints to control elements as applicable Updated Synchrocheck warnings and added note AutoReclose Zone Coordination section updated Added CT Supervision note Added Breaker Control note 9 Updated Test section 10 Added Settings Audit section 11 Added Transient Ground Fault Detection section n a Minor corrections throughout Table A 4 Major Updates for 850 AB Chapter SECTION and CHANGES cove...

Page 660: ...A2 cdr to add setting for signal input 4 Revised Negative Sequence OV logic diagram to 894051A2 cdr to add setting for signal input 4 Added new Admittance section to Setpoints Protection 4 Revised Wattmetric Ground Fault logic diagram to 894053A2 cdr to add settings for CT and VT inputs 4 Revised Power Factor logic diagram to 894059A3 cdr to add setting for signal input 4 Revised Pulsed Outputs lo...

Page 661: ...rmal Overload section 4 261 Added new RTD Trouble section to Setpoint Monitoring 4 262 Added new Loss of Communications section to Setpoints Monitoring 4 373 4 341 Updated the FlexLogic Operands table 4 376 4 346 Removed Cable Thermal Model from the FlexLogic Operands table and added Thermal Overload Table A 6 Major Updates for 850 A9 PAGE NUMBER A8 PAGE NUMBER A9 CHANGES cover cover Manual revisi...

Page 662: ...ANGES Manual revision number from A7 to A8 850 version updated to 1 5x 1 8 1 8 Updated 850 order codes see slots B C G and H 1 9 1 9 Added Arc Flash specifications to Specifications Protection 1 22 1 23 1 23 1 24 Added Analog Inputs and Analog Outputs to Specifications Inputs and Specifications Outputs respectively 2 8 2 8 Revised Typical Wiring diagram to 892771A5 cdr 4 4 93 4 106 Added Analog In...

Page 663: ... Power Frequency Chapter 3 Updated image and Test mode description for Programmable LEDs Chapter 4 Updated Breaker control logic diagram and added Warning description for Synchrocheck General Minor Corrections Table A 10 Major Updates for 850 A5 PAGE NUMBER CHANGES Manual revision number from A4 to A5 850 version updated to 1 2x Chapter 1 Updated some specifications Chapter 4 Replaced screen captu...

Page 664: ...vision number from A2 to A3 Chapter 1 Revised specification for 67P Chapter 2 Revised Line VT Connections diagram from A1 to A2 General Minor Corrections Table A 13 Major Updates for 850 A2 PAGE NUMBER CHANGES Manual revision number from A1 to A2 Chapter 2 Revised Typical wiring diagram Draw out unit General Minor Corrections Table A 11 Major Updates for 850 A4 PAGE NUMBER CHANGES ...

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