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scheider electric MiCOM P746, Technical Manual

The MiCOM P746 by Schneider Electric is a powerful and reliable protection relay for electrical substations. Its Technical Manual is available for free download on our website. Stay informed and maximize the capabilities of your P746 with this comprehensive manual. Download it from manualshive.com now.

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Firmware Design 

 

P746/EN FD/G31 

 

 

 

MiCOM P746 

 

(FD) 9-

9

 

 

 

2.3 Input 

module 

The input module provides the interface between the processor board and the analogue and 
digital signals coming into the relay. The input module consists of two PCBs; the main input 
board and a transformer board.  

The P746 provides eighteen current inputs (6 times 3 phases or 18 times single phase). 

CT

CT

Buffer

ó  

ADC

16-bits

Serial 

interface

Sample 
control

16:1

Up to 4 current inputs

8 digital inputs

Serial sample 

data bus

Trigger from

processor board

Calibration

E

2

PROM

Parallel bus

Up to 4

Difn

to

single

Low 

pass 

filter

Noise Filter 

Threshold 

Bus Interface

P3703ENa

Up to 4

Up tp 4

Difn

to

single

Low 

pass 

filter

Multiplexer

 

FIGURE 4: MAIN INPUT BOARD 

 

FD

Summary of Contents for MiCOM P746

Page 1: ...MiCOM P746 Numerical Busbar Protection P746 EN M G31 Software Version 03 Hardware Suffix K Technical Manual...

Page 2: ...settlements of warranties result solely from the applicable purchase contract which is not affected by the contents of the technical manual This device MUST NOT be modified If any modification is mad...

Page 3: ...cording P746 EN MR A11 Section 9 Firmware Design P746 EN FD G31 Section 10 Commissioning P746 EN CM F21 Section 11 Maintenance P746 EN MT A11 Section 12 Troubleshooting P746 EN TS G31 Section 13 SCADA...

Page 4: ......

Page 5: ...Pxxx EN SS G11 SAFETY SECTION...

Page 6: ......

Page 7: ...1 INTRODUCTION 3 2 HEALTH AND SAFETY 3 3 SYMBOLS AND EXTERNAL LABELS ON THE EQUIPMENT 4 3 1 Symbols 4 3 2 Labels 4 4 INSTALLING COMMISSIONING AND SERVICING 4 5 DECOMMISSIONING AND DISPOSAL 7 6 TECHNI...

Page 8: ...Pxxx EN SS G11 Page 2 8 Safety Section BLANK PAGE...

Page 9: ...miliar with the contents of that Safety Section or this Safety Guide When electrical equipment is in operation dangerous voltages will be present in certain parts of the equipment Failure to observe w...

Page 10: ...t documentation should be consulted before installing commissioning or servicing the equipment Terminals exposed during installation commissioning and maintenance may present a hazardous voltage unles...

Page 11: ...he protective conductor earth connection must be low inductance and as short as possible All connections to the equipment must have a defined potential Connections that are pre wired but not used shou...

Page 12: ...former termination has automatic CT shorting on removal of the module Therefore external shorting of the CTs may not be required the equipment documentation should be checked to see if this applies Fo...

Page 13: ...he equipment may be cleaned using a lint free cloth dampened with clean water when no connections are energized Contact fingers of test plugs are normally protected by petroleum jelly which should not...

Page 14: ...documentation This equipment requires a protective conductor earth connection to ensure user safety 6 3 Installation Category IEC 60255 27 2005 EN 60255 27 2006 Installation Category III Overvoltage C...

Page 15: ...Introduction P746 EN IT G31 MiCOM P746 IT INTRODUCTION Date 2011 Hardware Suffix K Software Version 03 Connection Diagrams 10P746xx...

Page 16: ...P746 EN IT G31 Introduction MiCOM P746...

Page 17: ...n P746 EN IT G31 MiCOM P746 IT 1 1 IT CONTENTS 1 MiCOM DOCUMENTATION STRUCTURE 3 2 INTRODUCTION TO MiCOM 5 3 PRODUCT SCOPE 6 3 1 Functional overview 6 3 2 Ordering options 8 FIGURES FIGURE 1 FUNCTIONA...

Page 18: ...P746 EN IT G31 Introduction IT 1 2 MiCOM P746 IT BLANK PAGE...

Page 19: ...tep sizes and defaults together with a brief explanation of each setting P746 EN OP Operation A comprehensive and detailed functional description of all protection and non protection functions P746 EN...

Page 20: ...d within the product documentation P746 EN IN Installation Recommendations on unpacking handling inspection and storage of the relay A guide to the mechanical and electrical installation of the relay...

Page 21: ...r supply control system The components within MiCOM are P range protection relays C range control products M range measurement products for accurate metering and monitoring S range versatile PC suppor...

Page 22: ...o 2 zones or n times 2 zones 3 1 Functional overview The P746 Busbar protection contains a wide variety of protection functions The protection features are summarized below Protection Functions Overvi...

Page 23: ...s Programmable function keys Control inputs IT Programmable scheme logic Programmable allocation of digital inputs and outputs Sequence of event recording Comprehensive disturbance recording waveform...

Page 24: ...RSTP 2 multi mode fibre ports IRIG B un modul Redundant Ethernet DHS 2 multi mode fibre ports IRIG B modulated Redundant Ethernet DHS 2 multi mode fibre ports IRIG B un modul G H J K L M Product Spec...

Page 25: ...Technical Data P746 EN TD G31 MiCOM P746 TD TECHNICAL DATA Date 2011 Hardware Suffix K Software Version 03 Connection Diagrams 10P746xx...

Page 26: ...P746 EN TD G31 Technical Data MiCOM P746...

Page 27: ...lock M4 screw For screened twisted pair cable multidrop 1000m max Courier protocol SELV rated circuit Ethernet copper fibre Optional Second Rear Communication PortEIA RS 232 9 pin D type female connec...

Page 28: ...10 Vdc and 40 to 100Vac rms iii Vx 110 to 250 Vdc and 100 to 240Vac rms Operating Range i 19 to 65V dc only for this variant ii 37 to 150V dc 32 to 110V ac iii 87 to 300V dc 80 to 265V ac With a toler...

Page 29: ...level Input impedance at dc 10k Environmental Conditions Ambient Temperature Range Ambient temperature range Operating temperature range 25 C to 55 C or 13 F to 131 F Storage and transit 25 C to 70 C...

Page 30: ...urge Immunity Test EIA RS232 ports excepted Per IEC 61000 4 5 2006 Level 4 Time to half value 1 2 50 s Amplitude 4kV between all groups and case earth Amplitude 2kV between terminals of each group Imm...

Page 31: ...oration Critical Infrastructure Protection USA CIP 002 1 CIP 003 1 CIP 004 1 CIP 005 1 CIP 006 1 CIP 007 1 CIP 008 1 and CIP 009 1 BDEW Germany ANSI ISA 99 USA IEEE 1686 IEC 62351 ISO IEC 27002 NIST S...

Page 32: ...rent elements 40ms Programmable scheme logic Accuracy Output dwell and pulse conditioner timers Setting 2 or 50ms whichever is greater IRIG B and Real Time Clock Modulated IRIG B Modulation ratio 1 3...

Page 33: ...ndow Edge PIN Min W 33 5 31 dBm avg Input Optical Power Minimum at Eye Center PIN Min C 34 5 31 8 Bm avg Input Optical Power Maximum PIN Max 14 11 8 dBm avg Settings Measurements and Records List Glob...

Page 34: ...values are expressed in multiple of the local CT s nominal rated current inp primary or ins secondary Breaker Failure 1ST phase O C threshold dead pole detection for 50BF I 0 05 1 00 xIn Confirmation...

Page 35: ...us 6 IN 1 0 5 15 0 xIn Reset Char if function status 6 IN 1 DT Inverse tReset if 2 function status 5 OR if Reset Char 1 AND function status 6 IN 1 0 0 100 0 Residual Overcurrent threshold function sta...

Page 36: ...l Ethernet Port NIC Tunl Timeout 1 30mins NIC Link Report Alarm Event None NIC Link Timeout 0 1 60s COMMISSION TESTS Monitor Bit 1 up to 8 Binary function link strings selecting which DDB signals have...

Page 37: ...Getting Started P746 EN GS G31 MiCOM P746 GS GETTING STARTED Date 2011 Hardware Suffix K Software Version 03 Connection Diagrams 10P746xx...

Page 38: ...P746 EN GS G31 Getting Started MiCOM P746...

Page 39: ...ay configuration 12 1 8 Front panel user interface keypad and LCD 12 1 8 1 Default display and menu time out 13 1 8 2 Menu navigation and setting browsing 14 1 8 3 Hotkey menu navigation 15 1 8 4 Pass...

Page 40: ...FIGURE 2 P746 RELAY REAR VIEW 80TE 7 FIGURE 3 MENU STRUCTURE 9 FIGURE 4 FRONT PANEL USER INTERFACE 12 FIGURE 5 Default display navigation 14 FIGURE 6 HOTKEY MENU NAVIGATION 15 FIGURE 7 FRONT PORT CONN...

Page 41: ...cover does not compromise the environmental withstand capability of the product but allows access to the relay settings When full access to the relay keypad is required for editing the settings the tr...

Page 42: ...unication with a PC locally to the relay up to 15m distance via an EIA RS 232 serial data connection A 25 pin female D type port providing internal signal monitoring and high speed local downloading o...

Page 43: ...Latched P746 LED Function Indication 1 LED1 Red LED1 Yellow LED1 Green Yes CB1 closed CB1 Alarm CB1 open 2 LED2 Red LED2 Yellow LED2 Green Yes CB2 closed CB2 Alarm CB2 open 3 LED3 Red LED3 Yellow LED...

Page 44: ...phase C Not used Not used 14 FnKey LED6 Red FnKey LED6 Yellow FnKey LED6 Green No Zone 2 blocked Zone 2 alarm zone blocked but not the CZ Zone 2 healthy 15 FnKey LED7 Red FnKey LED7 Yellow FnKey LED7...

Page 45: ...ogue input board M Power supply board FIGURE 2 P746 RELAY REAR VIEW 80TE Refer to the wiring diagram in Installation Chapter P746 EN IN for complete connection details 1 3 Relay connection and power u...

Page 46: ...1850 8 1 MODBUS The optional Ethernet port which supports IEC 61850 The measurement information and relay settings that can be accessed from the four interfaces are summarized in Table 1 Keypad LCD Co...

Page 47: ...s protection settings disturbance recorder settings or control and support C S settings One of two different methods is used to change a setting depending on which category the setting falls into Cont...

Page 48: ...is controlled by entry of two different passwords The levels of access are summarized in Table 2 Level management including password description management and recovery is fully described in section...

Page 49: ...either by a prompt when a setting change is attempted or by moving to the Password cell in the System data column of the menu The level of access is independently enabled for each interface that is to...

Page 50: ...panel user interface keypad and LCD GS When the keypad is exposed it provides full access to the menu options of the relay with the information displayed on the LCD The and keys which are used for men...

Page 51: ...lt display it is also possible to view the other default display options using the and keys However if there is no keypad activity for the 15 minute timeout period the default display will revert to t...

Page 52: ...eared alarm the default display is replaced by the text Alarms Faults present You cannot override this default display However you can enter the menu structure from the default display even if the dis...

Page 53: ...P through the available setting groups or SELECT the setting group that is currently displayed When the SELECT button is pressed a screen confirming the current setting group is displayed for 2 second...

Page 54: ...rts to the default access level 5 To manually reset the password protection to the default level select System data Password then press the clear key instead of entering a password 1 8 5 Reading and c...

Page 55: ...lay the following prompt will be given Update settings Enter or clear Pressing GS will result in the new settings being adopted pressing will cause the relay to discard the newly entered values It sho...

Page 56: ...2 to pin 2 pin 3 to pin 3 and pin 5 to pin 5 Note that a common cause of difficulty with serial data communication is connecting Tx to Tx and Rx to Rx This could happen if a cross over serial connect...

Page 57: ...automatic extraction of event and disturbance records is not supported it is possible to manually access this data via the front port 1 10 MiCOM S1 relay communications basics The front port is partic...

Page 58: ...panel of the relay Please follow the instructions in section 1 9 to ensure a proper connection is made between the PC and the relay before attempting to communicate with the relay This section is int...

Page 59: ...the different application programs MiCOM S1 for MiCOM M Px20 IEDs MiCOM S1 for MiCOM Px30 IEDs MiCOM S1 for MiCOM Px40 IEDs MiCOM S1 disturbance application To access these different programs use the...

Page 60: ...the following procedure must be followed First the communication setup must be adjusted if necessary In the Device menu select Communications Setup This brings up the following screen GS FIGURE 9 COM...

Page 61: ...ED both are said to be online Data and information can be directly transferred from and to the IED using the menu available under the DEVICE menu For further instruction on how to extract download and...

Page 62: ...OK will open the default file and you can start to edit settings For further instruction on how to extract download and modify settings files please refer to the MiCOM S1 User Manual 1 10 4 Connectin...

Page 63: ...iew Studio Explorer Properties views Start page Toolbar Search results view Studio Explorer Properties views Start page Toolbar Search results view Studio Explorer Properties views Start page Toolbar...

Page 64: ...bstations bays voltage levels and devices are added to the system If a system is no longer needed It can be deleted using the delete command The use of Quick Connect will automatically create a defaul...

Page 65: ...Started P746 EN GS G31 MiCOM P746 GS 3 27 or or The following window is displayed Enter the name of the system and the path to save the system file The new System is displayed in the Studio Explorer p...

Page 66: ...s panel 1 10 4 3 Create a new substation Select the system the menu bar is updated with new device new substation close delete paste properties and options icons Create a new device Create a new subst...

Page 67: ...vel of the station The new voltage level is displayed and the new bay icon is displayed GS Create new bay Create new bay 1 10 4 5 Create a new bay Select the substation and click on new bay button or...

Page 68: ...ed P746 EN GS G31 GS 3 30 MiCOM P746 GS Select the model in the list 6 and click in the Next button 7 The Device Name panel is displayed Enter the name and description of the relay 8 and click on the...

Page 69: ...Settings folder and open the Settings file If the relay is connected extract the settings from the relay click on the Extract Settings command or right click on the Settings folder Extract Settings E...

Page 70: ...Getting Started P746 EN GS G31 GS 3 32 MiCOM P746 1 2 1 1 2 2 GS Select the Model and click on the Finish button The default settings are displayed 1 2 1 2 1 1 2 2...

Page 71: ...I2 T1 Magnitude 0 000 A 60 00 mins 0 000 A Plant Status IB Z2 bias DST Start 000000 IN T1 Deriv Mag 0 000 A Last 0 000 A Control Status IC Z2 bias DST Start Day 0000000000000000 IN T1 deriv Ang 0 000...

Page 72: ...Digital input 1 Disabled Enabled Output R1 Setting Group 4 Protection Event Input 1 Trigger Disabled Enabled No Trigger OP Mode Clear Dist Recs Digital Input 2 One Box Mode No Output R2 Diff Protecti...

Page 73: ...Bit 8 Ctrl Command 31 10 IEC61850 71 Set Reset NIC Mac Address Test Mode Control Input 32 Fn Key 10 00 02 86 92 01 4 Disabled Latched Unlocked if Contacts NIC Tunl Timeout Blocked Ctrl Command 32 Fn...

Page 74: ...00 100 100 100 2 10 00 Z1 Bus CT Blk Time Remain CT6 ID 1 Alarm timer 0 5 000 s Z1 Bus CT Pol SNTP Server 1 Password Fallback Inverted CZ CCTFAIL MODE 255 255 255 255 Level 0 AlarmSR No Block Z2 Bus C...

Page 75: ...e 10 00 0 000 s 1 200 s CTS I2 I1 1 5 000 s CTS I2 I1 2 40 00 I 1 Current Set IN 1 Current I 1 TMS IN 1 TMS 1 000 1 000 I 1 tReset IN 1 tReset 0 000 s 0 000 s I 1 Current Set IN 1 Current 1 000 kA 200...

Page 76: ...m Group Relay 1 2 3 4 Grp 1 PSL Ref OutputR1 Reference Relay 2 JJ Month AAAA Output R2 HH MM SS mmm Relay 3 Grp 1 PSL ID Output R3 0xB83E9B5E Grp 2 PSL Ref Reference same for Groupe 3 4 Relay 24 Outpu...

Page 77: ...Settings P746 EN ST G31 MiCOM P746 ST SETTINGS Date 2011 Hardware Suffix K Software Version 03 Connection Diagrams 10P746xx...

Page 78: ...P746 EN ST G31 Getting Started MiCOM P746...

Page 79: ...fault only available for one box mode 12 1 2 6 Circuit Breaker Fail and undercurrent fonction 13 1 2 7 Supervision 13 1 3 Control and support settings 14 1 3 1 System data 15 1 3 2 Date and time 16 1...

Page 80: ...P746 EN ST G31 Settings ST 4 2 MiCOM P746 ST BLANK PAGE...

Page 81: ...Similarly a disabled setting group cannot be set as the active group The column also allows all of the setting values in one group of protection settings to be copied to another group To do this first...

Page 82: ...the overcurrent function Earth fault Enabled Enabled or Disabled To enable activate or disable turn off the earth fault overcurrent function CB fail Disabled Enabled or Disabled To enable activate or...

Page 83: ...isible further on in the relay setting menu RP1 Read Only Disabled Enabled or Disabled Enable Remote Read Only Mode on RP1 courier or IEC60870 5 103 communication protocol RP2 Read Only Disabled Enabl...

Page 84: ...ders connected to the relay up to 6 Z1 terminals 000000 0 or 1 Sets the configuration of the terminals fixed to zone 1 from terminal 6 1st digit to terminal 1 last digit The terminal is activated when...

Page 85: ...lator Sets the configuration of the bus coupling It indicates whether bus is coupled by breaker isolator or none Z1 Bus CT No CT No CT CT1 to CT18 Sets the busbar current transformer belonging to zone...

Page 86: ...000 Slope angle setting for the phase circuitry fault monitoring characteristic ID 1 Alarm timer 5 000 s 0 000 s 600 0 s 10 00 ms Setting for the operating time delay of the phase circuitry fault mon...

Page 87: ...only the Zone and or Check Zone is blocked for the 3 phases CCTFAIL tReset 5 000 s 0 000 s 600 0 s 100 0 ms Setting for the reset time delay of the circuitry fail reset option Voltage check Disabled D...

Page 88: ...ded in the phase comparison algorithm see section P746 EN AP 1 2 3 Dead Zone Overcurrent configuration Setting Range Menu Text Default Setting Min Max Step Size DEAD ZONE OC I Status I Status Disabled...

Page 89: ...set release characteristic of the IEEE US curves I 1 tReset 0 000 s 0 000 s 100 0 s 10 00 ms Setting that determines the reset release time for definite time reset characteristic I 1 k RI 1 000 0 100...

Page 90: ...s 100 0 s 10 00 ms Setting that determines the reset release time for definite time reset characteristic IN 1 IDG Is 1 500 1 000 4 000 0 100 Setting to determine the IDG characteristics IN 1 TMS 1 000...

Page 91: ...CBF Control by I or I and 52a setting that determines the circuit breaker fail timer reset current for overcurrent based protection circuit breaker fail initiation CB Fail 1 Timer 50 00 ms 0 000 s 10...

Page 92: ...10 00 s 100 0 ms This setting determines the operating time delay of the element upon detection of a current transformer supervision condition CTS I1 10 00 5 000 100 0 1 000 Setting for positive seque...

Page 93: ...cannot be altered Frequency 50 Hz 10Hz Relay set frequency Settable between 50 and 60Hz Comms Level 2 Displays the conformance of the relay to the Courier Level 2 comms Relay Address 255 0 255 1 Fixe...

Page 94: ...ics and CB data counters and level 2 password setting Level 3 All other settings Password Control 2 Sets the menu access level for the relay This setting can only be changed when level 2 access is ena...

Page 95: ...defined using the LocalTime offset setting and each interface can be assigned to the UTC zone or local time zone with the exception of the local interfaces which will always be in the local time zone...

Page 96: ...or universal time coordinated RP2 Time Zone Local UTC or Local Setting for the rear port 2 interface to specify if time synchronisation received will be local or universal time coordinated Tunnel Tim...

Page 97: ...this setting means that no event will be generated for any change in logic input state Opto Input Event Enabled Enabled or Disabled Disabling this setting means that no event will be generated for any...

Page 98: ...ontrols whether measured values via the front panel user interface and the front courier port are displayed as primary or secondary quantities Remote Values Primary Primary Secondary This setting cont...

Page 99: ...ter station and relay RP1 Comms Mode IEC60870 FT1 2 Frame IEC60870 FT1 2 Frame or 10 Bit No Parity The choice is either IEC60870 FT1 2 for normal operation with 11 bit modems or 10 bit no parity RP1 B...

Page 100: ...at both relay and master station are set at the same speed setting 1 3 6 1 3 Ethernet port Setting Range Menu Text Default Setting Min Max Step Size NIC Protocol IEC 61850 Indicates that IEC 61850 wil...

Page 101: ...tatus 00000000 This menu cell displays the status of the eight digital data bus DDB signals that have been allocated in the Monitor Bit cells Monitor Bit 1 Relay Label 01 0 to 1022 See PSL section for...

Page 102: ...nput active when accessing the relay from a remote location a 1 indicating a particular LED is lit and a 0 not lit Green LED Status 000001000100000000 This cell is an eighteen bit binary string that i...

Page 103: ...and is given and will then reset automatically i e no reset command required Ctrl command 1 Set Reset Set Reset ON OFF Enabled Disabled IN OUT Allows the SET RESET text displayed in the hotkey menu to...

Page 104: ...onfiguration are mostly data cells displayed for information but not editable In order to edit the configuration it is necessary to use the IED Intelligent Electronic Device configurator tool within M...

Page 105: ...he SCL Substation Configuration Language for XML file IEC61850 GOOSE GoEna 00000000 00000000 11111111 1 GoEna GOose ENAble is a setting to enable GOOSE Generic Object Orientated Substation Event for h...

Page 106: ...required to be disabled Rear Port 1 Enabled Enabled or Disabled Enable or disable the rear port 1 access A level 3 password is needed to perform this action To prevent accidental disbling of a port a...

Page 107: ...ccessed by the hotkey menu or it can be displayed in the programmable scheme logic Control Input 2 to 32 Control Input 2 to 32 16 Character Text Setting to change the text associated with each individ...

Page 108: ...As above The Terminal 2 Phase C calculated current is assigned to this channel Analog Channel 10 IA T3 Ix T6 As above The Terminal 3 Phase A calculated current is assigned to this channel Analog Chann...

Page 109: ...r when changing from 0 low Level to 1 High level If Trigger H L is selected it will trigger when changing from 1 high level to 0 low level Following lines give default settings up to channel 32 Digita...

Page 110: ...er H L Digital Input 15 Idiff Start Z2 As above Differential current in main zone 2 Input 15 Trigger Trigger L H No Trigger Trigger L H Trigger H L Digital Input 16 Idiff CZ Start As above Differentia...

Page 111: ...ut 26 Trigger No Trigger No Trigger Trigger L H Trigger H L Digital Input 27 Diff CZ Blked As above Check Zone Busbar Diff in Block Status Input 27 Trigger No Trigger No Trigger Trigger L H Trigger H...

Page 112: ...P746 EN ST G31 Settings ST 4 34 MiCOM P746 ST BLANK PAGE...

Page 113: ...Operation P746 EN OP G31 MiCOM P746 OP OPERATION Date 2011 Hardware Suffix K Software Version 03 Connection Diagrams 10P746xx...

Page 114: ...P746 EN OP G31 Operation MiCOM P746...

Page 115: ...ion 7 1 3 Additional protection 7 1 3 1 Dead Zone protection DZ 7 1 3 2 Circuit Breaker Fail CBF 8 1 4 Three Phase Overcurrent Protection 15 1 5 Earth Fault Protection 16 1 5 1 EF time delay character...

Page 116: ...FIGURE 1 DIFFERENTIAL BUSBAR PROTECTION PRINCIPLE 3 FIGURE 2 P746 SCHEME CHARACTERISTIC 5 FIGURE 3 CB ELEMENT LOGIC 9 FIGURE 4 CB FAIL LOGIC 11 FIGURE 5 CB FAIL ELEMENT LOGIC INTERNALLY INITIATED 12 F...

Page 117: ...the check zone concerned is equal in to the amount of the current flowing out of the area Therefore the currents cancel out In contrast when a fault occurs the differential current that arises is equa...

Page 118: ...ain differential current element of the busbar protection will only be able to operate if the differential current reaches a threshold IDx 2 In general this setting will be adjusted above the normal f...

Page 119: ...urated CT The measured differential current may be determined as an internal fault and initiate an unwanted trip of the busbar In order to avoid a risk of tripping under these circumstances most of th...

Page 120: ...g busbar trip Case 5 Case 1 then External fault Over 1000A is flowing from CT1 through CT2 and Current 3 decreases below 250A then the 2 currents are not within any 90 area and the phase algorithm is...

Page 121: ...upervise the current circuit A differential current will result if the secondary circuit of a CT becomes open circuited short circuited the amplitude of this current is proportional to the load curren...

Page 122: ...etection of a circuit breaker pole opening is the disappearance of the current i e undercurrent element This function is generally preferred above other elements due to its very fast response time In...

Page 123: ...ax T pl t Tn1 Switching order Tp Trip pole signal tBF4 30ms P0712ENa OP FIGURE 3 CB ELEMENT LOGIC Principle of the undercurrent function Instantaneous current measurements are taken for both the posit...

Page 124: ...system this detection method is used with the 52a threshold 1 3 2 1 4 Logic AND Current reset Criterion This is for instances where circuits may carry a very low level of load or even may operate unl...

Page 125: ...T BF4 T BF3 External CB Fail T BF2 Back trip time delay 2 4 0 0 0 Dead pole Detection I I enable I I B C I a I b c 0 Tn2 0 Tn2 0 IB IA IC IN N 0 Tn2 Tn2 IN I Fault Detection T BF1 Back trip time dela...

Page 126: ...87BB TpABC tBF1 tBF2 tBF1 BBx Local Retrip Local Circuit Breaker Note 1 Signal for back k trip including adjacent zone s if failed CB is bus section or bus coupler circuit breaker Note 2 I BB and I co...

Page 127: ...ignal for back trip including adjacent zone s if failed CB is bus section or bus coupler circuit breaker Note 2 Optional refer to section 3 3 2 1 Note 3 I could be enable or disable Back trip Note 1 E...

Page 128: ...ical setting under this condition is 150ms 1 3 2 1 8 1 General zone trip after time tBF4 When both the local trip and re trip have failed the countdown continues with a second timer adjusted to have a...

Page 129: ...curves OP IDMT Curve description Standard K Constant Constant L Constant Standard Inverse IEC 0 14 0 02 0 Very Inverse IEC 13 5 1 0 Extremely Inverse IEC 80 2 0 Long Time Inverse UK 120 1 0 Moderately...

Page 130: ...ault Protection 1 5 1 EF time delay characteristics The earth fault measuring elements for EF and SEF are followed by an independently selectable time delay These time delays are identical to those of...

Page 131: ...commended as long as the number of Input is sufficient If both 89A and 89B are used then status information will be available and in addition a discrepancy alarm will be possible 89A and 89B inputs ar...

Page 132: ...mmand are definitely required for all bus sections and bus couplers OP They are not definitely required for feeders but if the information is supplied to the scheme better operation is possible Dead Z...

Page 133: ...ed to as part of the PSL The function key commands can be found in the Function Keys menu see Settings section P746 EN ST In the Fn Key Status menu cell there is a 10 bit word which represent the 10 f...

Page 134: ...s chosen Two DDB signals are available in PSL for selecting a setting group via an opto input or function key selection The following table illustrates the setting group that is active on activation o...

Page 135: ...In addition to the latched pulsed option this column also allows the control inputs to be individually assigned to the Hotkey menu by setting 1 in the appropriate bit in the Hotkey Enabled cell The h...

Page 136: ...P746 EN OP G31 Operation OP 5 22 MiCOM P746 OP BLANK PAGE...

Page 137: ...Application Notes P746 EN AP G31 MiCOM P746 AP APPLICATION NOTES Date 2011 Hardware Suffix K Software Version 03 Connection Diagrams 10P746xx...

Page 138: ...P746 EN AP G31 Application Notes MiCOM P746...

Page 139: ...RMERS 15 4 ISOLATOR AND CIRCUIT BREAKER FUNCTION 16 4 1 Isolator State Monitoring Features 16 4 1 1 Use of one position information only 16 4 1 2 Use of the two positions information 16 4 1 3 Use of t...

Page 140: ...of relays CTs 25 6 3 3 Simplified topology 25 6 4 Conclusion 25 7 TOPOLOGY 26 7 1 Topology Configuration 26 7 2 Topology Monitoring Tool 27 7 3 Topology processing 28 7 3 1 Single bar or double bus w...

Page 141: ...hgear 45 8 7 Substation Architecture 45 9 STANDARD CONFIGURATIONS 46 10 APPLICATION OF NON PROTECTION FUNCTIONS 51 10 1 Function keys 51 11 CT REQUIREMENTS 52 11 1 Notation 52 11 2 87BB Phase CT Requi...

Page 142: ...P746 EN AP G31 Application Notes AP 6 4 MiCOM P746 AP BLANK PAGE...

Page 143: ...closure The busbar protection must also remain stable for faults that occur outside of the protected zone as these faults will usually be cleared by external protection devices In the case of a circui...

Page 144: ...ial protection sometimes referred to as low impedance type Provides the main protection element for the scheme This protection provides high speed discriminative protection for all fault types Circuit...

Page 145: ...Busbar settings Busbar Biased Current Differential Protection 2 2 1 Setting guidelines 2 2 1 1 87BB Phase Settings Solid Earthed Network Schemes An Excel spreadsheet tool called Idiff_Ibias is availa...

Page 146: ...w as possible whilst ensuring the single CT failure will not cause tripping under maximum load conditions with no VT 4 Slope k2 ID 2 usuaL recommendation is generally 50 65 5 IDCZ 2 as low as possible...

Page 147: ...hat is counted twice by the Check Zone for example one and half circuit breaker substation and depends on the number of bars n bars Independent bars A minimum internal short circuit value Icc min 1 ba...

Page 148: ...2 bars Independent bars A minimum internal short circuit value Icc min 1 bar A maximum load for a bar IloadMax 1 bar Feeder Feeder Feeder Feeder Feeder Feeder lload lload lload lload P0582ENa AP The...

Page 149: ...depend on the number of bars but depends on The minimum internal short circuit threshold ID 2 The maximum number of infeeds and their CT primary nominal currents Q CB CT Feeder Q CB CT Feeder Q CB CT...

Page 150: ...2 2 1 2 1 Sub station features Only 4 values have to be known 1 Maximum load current in a feeder 2 Minimum phase to phase fault current Ph Ph min in a bus 3 Maximum single phase steady state faulty cu...

Page 151: ...d to exist between the open element and the CT The P746 can protect this zone with the Dead Zone protection This is a simple time delayed overcurrent element which is only active when a dead zone is i...

Page 152: ...y operation The phase undercurrent settings must be set less than load current to ensure that operation indicates that the circuit breaker pole is open A typical setting for overhead line or cable cir...

Page 153: ...imary CT winding is 40 This mix must therefore be accounted for by the scheme and this is achieved by using the primary currents sent by the P746 to the P746 that undertakes scheme calculations In the...

Page 154: ...mation only The use of the open position 89b is highly recommended In that case in the P746 topology the position will be forced as closed as soon as the isolator will leave the open position AP 4 1 2...

Page 155: ...arrive at the open position This is not recommended as the P746 may trip in 2 steps instead of 1 in case of a fault appearing during the closing period of the isolator AP 4 1 6 Isolator supervision al...

Page 156: ...ovides supervision of the trip coil with the breaker open or closed however pre closing supervision is not provided This scheme is also incompatible with latched trip contacts as a latched contact wil...

Page 157: ...he TCS scheme 1 Any of the available opto inputs can be used to indicate whether or not the trip circuit is healthy The delay on drop off timer operates as soon as the opto is energized but will take...

Page 158: ...ained through the 52b contact when the trip contact is closed AP When the breaker is closed supervision current passes through opto input A and the trip coil When the breaker is open current flows thr...

Page 159: ...and 2 supervision current is maintained through the trip path with the breaker in either state thus giving pre closing supervision As with schemes 1 and 2 resistors R1 and R2 are used to prevent false...

Page 160: ...on In this mode both the busbar and circuit breaker fail conditions are monitored but all trips are inhibited for the selected zone When a zone is in this mode the P746 does take into account the loca...

Page 161: ...ics In low impedance busbar schemes spill current during load or fault conditions due to Imag CT error remanence flux different CT ratios are taken care by the bias characteristics where the different...

Page 162: ...uble busbar system where bus1 has least number of feeders say 5 feeders with weak source and busbar 2 has more number of feeders say 30 feeders check zone CZ bias current will be extremely large since...

Page 163: ...the failure of any relay or CT in one side will not block affect the scheme on other side This requirement is very essential since the busbar is large and we shall not compromise on full busbar protec...

Page 164: ...o 6 for one box mode and up to 18 for three boxes mode Z1 Terminals 000011 to be set to 1 if the terminal connection can only be to Zone 1 Z2 Terminals 000100 to be set to 1 if the terminal connection...

Page 165: ...ine diagram of the system which is used to recreate the system using the topology configuration software This can be carried out by customer AP FIGURE 7 P746 SCHEME EDITOR FIGURE 8 P746 SYNOPTIC The t...

Page 166: ...S SECTION CLOSED A zone is defined from a CT to an other CT or an open electrical element coupler CB or isolator As all the breakers and isolators are closed there is only one zone including BB1 and B...

Page 167: ...is created from each bar feeder CT to that coupler CT There is one zone for BB1 to CT3 and one zone for BB2 to CT3 P0587ENa CT 3 is not taken into account Coupling Open Isolator Closed Isolator Close...

Page 168: ...both zones There is one zone for BB1 to CT4 and one zone for BB2 to CT3 P0589ENa CT 3 4 not taken into account Coupling Open Isolator Closed Isolator Closed Zone 1 CT1 Zone 2 CT2 Zone 1 BB1 Zone 2 BB...

Page 169: ...er CTs belongs to the closed isolator zone There is one zone for BB1 to the open isolator and one zone for BB2 to the open isolator P0591ENa CT 3 4 not taken into account Coupling Open CB Closed CB Cl...

Page 170: ...th sides If the circuit breaker was open no load current would flow through the circuit breaker The differential current in the two main zones would equal zero as the current flowing into the zones wo...

Page 171: ...If the circuit breaker was open no load current would flow through the circuit breaker The differential current in the two main zones would equal zero as the current flowing into the zones would stil...

Page 172: ...equal the current flowing out However if a fault occurs between the CT and the circuit breaker the current will flow from zone 1 into zone 2 which feeds the fault The differential current in main zon...

Page 173: ...between CT and CB 2 CT Coupler with the CB closed and Fault between a CT and the CB P0846ENa AP FIGURE 21 CT ON BOTH SIDES OF BUS COUPLER CB CLOSED FAULT OCCURS BETWEEN A CT THE CB Treating this as a...

Page 174: ...t of VTs 0 or 1 0 or 1 Mode One box mode 3 boxes mode Radial bus with 1 or 2 CT coupling 2 zones Set of CTs Up to 6 Up to 12 Up to 18 Up to 36 Set of VTs 0 or 1 0 to 2 0 or 2 0 to 2 Mode One box mode...

Page 175: ...is scheme can be protected by 2 sets of 3 P746 connected as shown below AP The trip information must be shared among the 2 sets of 3 P746 with high speed contact to the filtered or via goose messages...

Page 176: ...s all digital inputs and all relay outputs are connected to one p746 3 Phase 1 box Application cabling Ph C Ph C Ph B Ph B Ph A Ph A P0848ENa 8 2 2 3 boxes mode Each phase inputs all digital inputs an...

Page 177: ...teria must be shared among the 3 P746 P0850ENa Voltage information must be shared 1 P746 per CT phase The information to be shared is the voltage algorithm output that allows the trip There are two dd...

Page 178: ...G31 Application Notes AP 6 40 MiCOM P746 To do so the blocking information has to be sent from the connected P746 to the two other ones with the following methods Goose messages with IEC 61850 8 1 rec...

Page 179: ...P746 EN AP G31 MiCOM P746 AP 6 41 High speed contact to filtered optos Note the tripping time is delayed by around Standard relay 5ms opto filtering 5ms 10ms High break high speed relay 0ms opto filt...

Page 180: ...P746 EN AP G31 Application Notes AP 6 42 MiCOM P746 high speed contact to unfiltered optos Note the tripping time is delayed by around 5ms for Standard relay AP...

Page 181: ...se fault will be seen by two phase P746 By wiring the trip outputs in parallel any fault would be cleared even if one P746 fails simplified redundancy 3 box 1 box Application cabling Ph A Ph B Ph C Ne...

Page 182: ...different other P746 settings transformer coupler line etc 7 Draw the topology line diagram optional but to use the P746 remote HMI using P746 Remote HMI Tips 8 Create the P746 PSL file using MiCOM S1...

Page 183: ...imum three phase busbar fault current With impedance Minimum two phase busbar fault current Minimum single phase to earth busbar fault current Minimum load current on the smallest feeder Maximum load...

Page 184: ...o 6 Up to 12 Up to 18 Up to 36 Set of VTs 0 or 1 0 to 2 0 or 2 0 to 2 Mode One box mode One box mode 3 boxes mode 3 boxes mode Note 2 sets of 2 sets of Double bus with no transfer bus 2 zones Set of C...

Page 185: ...TION WITH BUS SECTION ISOLATOR The above example shows a single busbar with a bus section isolator It is split into two zones There are up to 6 feeders connected to the busbar This configuration requi...

Page 186: ...s connected to the busbar This configuration would require 3 P746 1 P746 per CT phase The voltages can be shared either via HB HS contacts Optos or via Ethernet 61850 8 1 gooses P0853ENa BB2 BB1 If it...

Page 187: ...end on the i o requirements of the scheme in question FIGURE 25 DOUBLE BUSBAR APPLICATION WITH BUS COUPLER The above example shows a double busbar with a bus coupler It is split into two zones If ther...

Page 188: ...section isolators is optional The number of additional P746 being dependant on the number of bus section bus coupler CTs The type of P746 used for each bay will depend on the i o requirements of the...

Page 189: ...onitoring indication of the circuit breaker isolator position via the auxiliary contacts scheme acts accordingly should discrepancy conditions be detected Commissioning test facilities Continuous self...

Page 190: ...particular protection 11 2 87BB Phase CT Requirements 11 2 1 Feeders connected to sources of significant power i e lines and generators The primary rated current is specified above a 1 20th of the max...

Page 191: ...nee point voltage for saturation By convention one admits that the knee point voltage Vk is 80 of this value For a conversion between a class 5P IEC and a class X BS CT one uses the relation Vk 0 8 X...

Page 192: ...872 1000 5 0 4 92 5 145 250 460 880 1500 5 0 6 112 5 165 270 480 900 2000 5 0 8 132 5 185 290 500 920 3000 5 1 2 172 5 225 330 540 960 TABLE 3 IEC BS KNEE POINT VOLTAGE VK OFFERED BY C CLASS CTS Assum...

Page 193: ...ng capacity This gives equivalent characteristics to HRC red spot fuses type NIT TIA often specified historically The table below recommends advisory limits on relays connected per fused spur This app...

Page 194: ...P746 EN AP G31 Application Notes AP 6 56 MiCOM P746 AP BLANK PAGE...

Page 195: ...Programmable Logic P746 EN PL G31 MiCOM P746 PL PROGRAMMABLE LOGIC Date 2011 Hardware Suffix K Software Version 03 Connection Diagrams 10P746xx...

Page 196: ...P746 EN PL G31 Programmable Logic MiCOM P746...

Page 197: ...3 Drawing Tools 6 1 5 4 Nudge tools 6 1 5 5 Rotation tools 6 1 5 6 Structure tools 6 1 5 7 Zoom and pan tools 6 1 5 8 Logic symbols 6 1 6 PSL logic signals properties 8 1 6 1 Link properties 8 1 6 2 O...

Page 198: ...1 7 Description of P746 logic nodes 14 1 7 1 Sorted by DDB number 14 1 7 2 Sorted by DDB name 21 1 8 Factory default programmable scheme logic 28 1 9 Logic input mapping 28 1 10 Relay output contact m...

Page 199: ...gth of the pulse on the input The outputs of the PSL are the LEDs on the front panel of the relay and the output contacts at the rear The execution of the PSL logic is event driven the logic is proces...

Page 200: ...o use MiCOM Px40 PSL editor With the MiCOM Px40 PSL Module you can Start a new PSL diagram Extract a PSL file from a MiCOM Px40 IED Open a diagram from a PSL file Add logic components to a PSL file Mo...

Page 201: ...s that the program attempts to detect are One or more gates LED signals contact signals and or timers have their outputs linked directly back to their inputs An erroneous link of this sort could lock...

Page 202: ...nnotations for easier reading of PSL schemes 1 5 4 Nudge tools To move logic elements PL 1 5 5 Rotation tools Tools to spin mirror and flip 1 5 6 Structure tools To change the stacking order of logic...

Page 203: ...age to another IED Used in IEC 61850 GOOSE applications only Control In Create an input signal to logic that can be operated from an external command Function Key PL Create a function key input signal...

Page 204: ...the gate It is not possible to invert a link that is not connected to the input of a gate Rules for Linking Symbols Links can only be started from the output of a signal gate or conditioner and can on...

Page 205: ...mer DDB 651 T1 IN 1 TimeBlk 1 6 5 GOOSE input signal properties GOOSE In The Programmable Scheme Logic interfaces with the GOOSE Scheme Logic see PSL Editor online help or S1 Users manual for more det...

Page 206: ...i e toggled or normal Toggled mode means the DDB signal will remain latched or unlatched on key press and normal means the DDB will only be active for the duration of the key press For example operat...

Page 207: ...LED output to be latching or non latching 1 6 13 Contact conditioner properties Each contact can be conditioned with an associated timer that can be selected for pick up drop off dwell pulse pick up d...

Page 208: ...ee variants of the SR latch gate are available They are Standard no input dominant Set Input Dominant Reset Input Dominant The output of the gate Q is latched i e its state is non volatile upon power...

Page 209: ...R Q S R Q 1 0 1 0 1 0 0 0 no change last state 1 1 1 Set Input Dominant S RD Q S R Q 1 0 1 0 1 0 0 0 no change last state 1 1 0 Reset Input Dominant P0737ENa PL 1 Select the Gate type AND OR or Progra...

Page 210: ...User Control Function Key 1 is activated In Normal mode it is high on keypress and in Toggle mode remains high low on single keypress 361 Function Key 10 User Control Function Key 10 is activated In N...

Page 211: ...Terminal 6 feeder or coupler I 2 Timer Blocked 636 T18 I 1 TimerBlk PSL Terminal 18 feeder or coupler I 1 Timer Blocked 637 T18 I 2 TimerBlk PSL Terminal 18 feeder or coupler I 2 Timer Blocked 651 T1...

Page 212: ...il CZ phase C CCTFail 849 Bus CB Not Ready BUSBAR Diff Bus CB Not Ready to open or close 851 UI pw level 1 Cyber Security Less Significant Bit for user interface password indication level level 1 Each...

Page 213: ...Differential busbar Zone 2 Phase A Trip 907 Idiff TripB Z2 DIFF Differential busbar Zone 2 Phase B Trip 908 Idiff TripC Z2 DIFF Differential busbar Zone 2 Phase C Trip 909 Z1 BusCB Trp DIFF Zone 1 Bus...

Page 214: ...art 1381 T6 I 1 Start A Phase Over Current Terminal 6 feeder or coupler I 1 Start A 1382 T6 I 1 Start B Phase Over Current Terminal 6 feeder or coupler I 1 Start B 1383 T6 I 1 Start C Phase Over Curre...

Page 215: ...ode Terminal 1 feeder or coupler in Test Mode 1703 T6 In Test Mode Terminal 6 feeder or coupler in Test Mode 1715 T18 In Test Mode Terminal 18 feeder or coupler in Test Mode 1716 PhComp Blk Z1 A Zone...

Page 216: ...ked BUSBAR Diff Zone 2 Busbar Diff Phase C Blocked 1820 Diff CZ Blked BUSBAR Diff Check Zone Busbar Diff Blocked 1821 Diff CZ A Blked BUSBAR Diff Check Zone Busbar Diff Phase A Blocked 1822 Diff CZ B...

Page 217: ...CB6 Healthy CBF Alarm Bus CB 500 CB FAILURE CB Fail Alarm of the Bus CB CBF Bktrip Z1 1122 CBF FAILURE Zone 1 CBF Back Trip CBF Bktrip Z2 1123 CBF FAILURE Zone 2 CBF Back Trip CBF Retrip T1 1104 CBF F...

Page 218: ...r Current start DeadZone18 Start 1333 Dead Zone Over Current Terminal 18 feeder or coupler DeadZone Over Current Start DeadZone18 Trip 950 DEADZONE Feeder 18 DeadZone Trip DeadZone6 StartA 1629 Dead Z...

Page 219: ...ction key Tri LED 1 Red energized FnKey LED10 ConG 291 PSL Assignment of signal to drive output FnKey Tri LED 10 Green FnKey LED10 ConR 290 PSL Assignment of signal to drive output FnKey Tri LED 10 Re...

Page 220: ...to drive output Tri LED 8 Red LED8 Grn 207 PSL Programmable Tri LED 8 Green energized LED8 Red 206 PSL Programmable Tri LED 8 Red energized MCB VTS 874 PSL Not Used Monitor Blocked 879 PSL IEC60870 5...

Page 221: ...rip By Busbar Diff or CBF RemoteTripT6 1129 CBF FAILURE Terminal 6 feeder or coupler Remote Trip By Busbar Diff or CBF Remote1 level 1 855 Cyber Security Less Significant Bit for first rear port passw...

Page 222: ...r Current Terminal 6 feeder or coupler I 1 Start T6 I 1 Start A 1381 Phase Over Current Terminal 6 feeder or coupler I 1 Start A T6 I 1 Start B 1382 Phase Over Current Terminal 6 feeder or coupler I 1...

Page 223: ...Z1 560 SW VT Check Allow Zone 1 to Trip VT Chk Allow Z2 561 SW VT Check Allow Zone 2 to Trip VT Fail Alarm 477 VT Supervision VT Fail Alarm VT Supervision VTS Block Z1 593 BUSBAR Diff Block Zone 1 VTS...

Page 224: ...746xxxK 40 24 24 P746xxxL 32 32 32 1 9 Logic input mapping The default mappings for each of the opto isolated inputs are as shown in the following table Opto Input Number P746 Relay Text Function 1 In...

Page 225: ...ut L24 Not mapped 25 Input L25 Not mapped 26 Input L26 Not mapped 27 Input L27 Not mapped 28 Input L28 Not mapped 29 Input L29 Not mapped 30 Input L30 Not mapped 31 Input L31 Not mapped 32 Input L32 N...

Page 226: ...0 CBF trip 11 Relay R11 Pick up 0 0 87BB Trip 12 Relay R12 Pick up 0 0 Fault Ph A 13 Relay R13 Pick up 0 0 Fault Ph B 14 Relay R14 Pick up 0 0 Fault Ph C 15 Relay R15 Pick up 0 0 Maintenance 16 Relay...

Page 227: ...5 Function Key 5 Normal 6 Function Key 6 Normal 7 Function Key 7 Toggled Set zone 2 in test mode 8 Function Key 8 Normal Reset Circuitry fault 9 Function Key 9 Disabled Reset Indications 10 Function K...

Page 228: ...llow FnKey LED3 Green No Fault on phase A Not used Not used 12 FnKey LED4 Red FnKey LED4 Yellow FnKey LED4 Green No Fault on phase B Not used Not used 13 FnKey LED5 Red FnKey LED5 Yellow FnKey LED5 Gr...

Page 229: ...TA column 3 for each setting group The function for each cell is shown below Grp PSL Ref When downloading a PSL to the relay the user will be prompted to enter which group the PSL is for and a referen...

Page 230: ...Closed DDB 725 CB4 Closed DDB 069 Input L6 DDB 723 CB3 Closed DDB 068 Input L5 DDB 721 CB2 Closed DDB 067 Input L4 DDB 719 CB1 Closed DDB 066 Input L3 DDB 065 Input L2 DDB 064 Input L1 CB1 opto input...

Page 231: ...NAND Gate DDB 076 Input L13 DDB 765 Q3 Z2 Closed DDB 763 Q3 Z1 Closed DDB 075 Input L12 DDB 074 Input L11 DDB 761 Q2 Z2 Closed DDB 759 Q2 Z1 Closed DDB 073 Input L10 DDB 757 Q1 Z2 Closed DDB 755 Q1 Z...

Page 232: ...t Mode DDB 892 Reset CcT Fail DDB 1820 Diff CZ Blked DDB 1697 Z2 In Test Mode DDB 358 Function Key7 DDB 1820 Diff CZ Blked DDB 1696 Z1 In Test Mode DDB 353 Function Key2 DDB 359 Function Key8 DDB 844...

Page 233: ...224 Non Latching FnKeyLED9 Red DDB 225 FnKeyLED9 Grn DDB 226 Non Latching FnKeyLED10 Red DDB 227 FnKeyLED10 Grn 1 1 1 1 DDB 883 Fault REC TRIG DDB 1816 Diff Z2 Blked DDB 876 Reset Relays LED DDB 1820...

Page 234: ...Trip T3 DDB 1146 T3 IN 1 Trip DDB 1012 T3 I 1 Trip DDB 1145 T2 IN 2 Trip DDB 1290 Int CBF Init T1 DDB 934 DeadZone 2 Trip DDB 1699 T2 In Test Mode DDB 1011 T2 I 2 Trip DDB 1105 CBF Retrip T2 DDB 916 Z...

Page 235: ...BusCB DDB 909 Z1 BusCB Trp DDB 1151 T5 IN 2 Trip DDB 1293 Int CBF Init T4 DDB 1017 T5 I 2 Trip DDB 937 DeadZone 5 Trip DDB 1702 T5 In Test Mode DDB 1108 CBF Retrip T5 DDB 919 Zone Trip T5 DDB 1150 T5...

Page 236: ...p 0 0 Output R15 DDB 014 Pick Up 0 0 Output R16 DDB 015 1 1 1 DDB 451 CB Status Alarm DDB 1697 Z2 In Test Mode DDB 1696 Z1 In Test Mode DDB 895 Fault C DDB 894 Fault B DDB 893 Fault A DDB 902 Idiff Tr...

Page 237: ...Measurements and Recording P746 EN MR A11 MiCOM P746 MR MEASUREMENTS AND RECORDING Date 2008 Hardware Suffix K Software Version 01 Connection Diagrams 10P746xx xx 01 to 07...

Page 238: ...P746 EN MR A11 Measurements and Recording MiCOM P746...

Page 239: ...1 Types of event 6 1 2 2 Resetting of event fault records 9 1 2 3 Viewing event records via MiCOM S1 support software 9 1 2 4 Event filtering 10 1 3 Disturbance recorder 11 1 4 Measurements 16 1 4 1 C...

Page 240: ...P746 EN MR A11 Measurements and Recording MR 8 2 MiCOM P746 MR BLANK PAGE...

Page 241: ...A value of 0 corresponds to the latest event and so on Menu Cell Ref Latched alarm active Latched alarm inactive Self reset alarm active Self reset alarm inactive Relay contact event Opto isolated in...

Page 242: ...12 I 1 Trip T12 I 2 Trip T13 I 1 Trip T13 I 2 Trip T14 I 1 Trip T14 I 2 Trip T15 I 1 Trip T15 I 2 Trip T16 I 1 Trip T16 I 2 Trip T17 I 1 Trip T17 I 2 Trip T18 I 1 Trip T18 I 2 Trip T1 IN 1 Trip T1 IN...

Page 243: ...of negative current on terminal 1 I2 T2 Magnitude Magnitude of negative current on terminal 2 I2 T3 Magnitude Magnitude of negative current on terminal 3 I2 T4 Magnitude Magnitude of negative current...

Page 244: ...hat the relevant protection element has reset to reset all LED and relays latched in the PSL and to reset the latched alarms For extraction from a remote source via communications refer to the SCADA C...

Page 245: ...ously described It is used by the event extraction software such as MiCOM S1 V2 or Studio to identify the alarm and is therefore invisible if the event is viewed on the LCD Either ON or OFF is shown a...

Page 246: ...the General Events is given in the Relay Menu Database P746 EN MD which is a separate document available for downloaded from our website 1 2 1 6 Fault records Each time a fault record is generated an...

Page 247: ...t once the settings have been confirmed at the setting trap 1 2 2 Resetting of event fault records If it is required to delete either the event fault or maintenance reports this may be done from withi...

Page 248: ...ent will be generated for any change in logic input state Opto Input Event Enabled Enabled or Disabled Disabling this setting means that no event will be generated for any change in logic input state...

Page 249: ...5 s 10 00 ms This sets the overall recording time Trigger Position 33 3 0 0 100 0 0 10 This sets the trigger point as a percentage of the duration For example the default settings show that the overal...

Page 250: ...to this channel Analog Channel 18 IC T5 Ix T14 As above The Terminal 5 Phase C calculated current is assigned to this channel Analog Channel 19 IA T6 Ix T15 As above The Terminal 6 Phase A calculated...

Page 251: ...Digital Input 7 Output R7 As above Relay 7 output digital channel Input 7 Trigger No Trigger No Trigger Trigger L H Trigger H L Digital Input 8 Output R8 As above Relay 8 output digital channel Input...

Page 252: ...o Trigger No Trigger Trigger L H Trigger H L Digital Input 20 Idiff Trip Z1 As above Differential busbar trip or gate of Z1 Diff phase in zone 1 Input 20 Trigger No Trigger No Trigger Trigger L H Trig...

Page 253: ...igger Position sets the trigger point as a percentage of the duration For example the default settings show that the overall recording time is set to 1 5s with the trigger point being at 33 3 of this...

Page 254: ...rete Fourier Transform used by the relay protection functions and present both magnitude and phase angle measurement 1 4 3 Sequence voltages and currents Sequence quantities are produced by the P746 r...

Page 255: ...X 3 Magnitude IB Z1 Bias IC 1 Phase Angle IX 3 Phase Angle IC Z1 Bias IA 2 Magnitude IX 4 Magnitude IA 2 Phase Angle IX 4 Phase Angle IB 2 Magnitude IX 5 Magnitude IB 2 Phase Angle IX 5 Phase Angle IA...

Page 256: ...2 Derived Ang I0 3 Magnitude I1 3 Magnitude I2 3 Magnitude IN 3 Derived Mag IN 3 Derived Ang I0 4 Magnitude I1 4 Magnitude I2 4 Magnitude IN 4 Derived Mag IN 4 Derived Ang I0 5 Magnitude I1 5 Magnitu...

Page 257: ...Firmware Design P746 EN FD G31 MiCOM P746 FD FIRMWARE DESIGN Date 2011 Hardware Suffix K Software Version 03 Connection Diagrams 10P746xx...

Page 258: ...P746 EN FD G31 Firmware Design MiCOM P746...

Page 259: ...m services software 6 1 2 3 Platform software 6 1 2 4 Protection control software 7 1 2 5 Disturbance recorder 7 2 HARDWARE MODULES 8 2 1 Processor board 8 2 2 Internal communication bus 8 2 3 Input m...

Page 260: ...face 16 3 4 Protection and control software 17 3 4 1 Overview protection and control scheduling 17 3 4 2 Topology processing 17 3 4 3 Signal processing 17 3 4 4 Programmable scheme logic 17 3 4 5 Func...

Page 261: ...oard Optional P3701ENc Main board Interconnexion buses ENTER READ CLEAR OUT OF SERVICE HEALTHY TRIP ALARM FIGURE 1 MiCOM P746 ARCHITECTURE The different modules that can be present in the relay are as...

Page 262: ...e time reference for the relay The IRIG B board and is controlled by the main board 1 1 6 Second rear comms board optional The optional second rear port is designed typically for dial up modem access...

Page 263: ...tacts Measurements event fault disturbance records Protection control settings Protection Control software Platform software Disturbance recorder task Programmable fixed scheme logic Signal processing...

Page 264: ...TION FLOW FD 1 2 2 System services software The system services software provides the low level control of the relay hardware For example the system services software controls the boot of the relay s...

Page 265: ...ents The protection control software interfaces with the platform software for settings changes and logging of records and with the system services software for acquisition of sample data and access t...

Page 266: ...ss SRAM which is used for the storage and execution of the processor software and data storage as required during the processor s calculations The non volatile memory is sub divided into 2 groups 4MB...

Page 267: ...ansformer board The P746 provides eighteen current inputs 6 times 3 phases or 18 times single phase CT CT Buffer ADC 16 bits Serial interface Sample control 16 1 Up to 4 current inputs 8 digital input...

Page 268: ...er Buffer Serial interface Sample control 16 1 Multiplexer Anti alias filters Transformer board Input board 8 4 4 4 Up to 5 current inputs 3 4 voltage inputs 8 digital inputs Parallel bus Serial sampl...

Page 269: ...nication interface 2 5 Power supply board including EIA RS 485 communication interface One of three different configurations of the power supply board can be fitted to the relay This will be specified...

Page 270: ...ith high capacity relay output contacts The MOSFET has a varistor across it to provide protection which is required when switching off inductive loads as the stored energy in the inductor causes a rev...

Page 271: ...ering this board within a relay both 2nd rear communications will become connection and setting options The user may then enable either one or both as demanded by the installation There is a hardware...

Page 272: ...ard It is recommended that each copper Ethernet cable is limited to a maximum length of 3 meters and confined within one bay cubicle When using IEC 61850 communications through the Ethernet card the r...

Page 273: ...face Modbus Setting database Local Remote communications interface Courrier Front panel interface LCD keypad Relay hardware System service software Supervisor task Sample data digital logic inputs Con...

Page 274: ...initiated from the protection software or the platform software is responsible for logging of a maintenance record in the event of a relay failure This includes errors that have been detected by the...

Page 275: ...the power waveform The value of the frequency is also stored for use by the protection control task The protection and control calculates the Fourier components for the analogue signals The Fourier co...

Page 276: ...be reinstated after power up should relay power be inadvertently lost 3 4 6 Event and fault recording A change in any digital input signal or protection element output signal causes an event record t...

Page 277: ...navailable This is signalled by the Healthy LED on the front of the relay which will illuminate when the relay has passed all of the tests and entered operation If the testing detects a problem the re...

Page 278: ...solated inputs and the relay contacts is checked by the data acquisition function every time it is executed The operation of the analogue data acquisition system is continuously checked by the acquisi...

Page 279: ...Commissioning and Maintenance P746 EN CM F21 MiCOM P746 CM COMMISSIONING AND MAINTENANCE Date 2010 Hardware Suffix K Software Version 02 Connection Diagrams 10P746xx...

Page 280: ......

Page 281: ...ergised 10 4 2 1 Watchdog contacts 10 4 2 2 Date and time 10 4 2 3 Light Emitting Diodes LED s 11 4 2 4 Field voltage supply 12 4 2 5 Input opto isolators 12 4 2 6 Output relays 12 4 2 7 Rear communic...

Page 282: ...P746 EN CM F21 Commissioning and Maintenance CM 10 2 MiCOM P746 CM 8 FINAL CHECKS 30 9 COMMISSIONING TEST RECORD 31 10 SETTING RECORD 38...

Page 283: ...ator interface HMI Unless previously agreed to the contrary the customer will be responsible for determining the application specific settings to be applied to the relay and for testing of any scheme...

Page 284: ...secondary front cover allows access to all keys so that settings can be changed LED s and alarms reset and fault and event records cleared However menu cells those have access levels higher than the...

Page 285: ...one unit 3 2 Optional equipment Multi finger test plug type P992 if test block type P991 installed or MMLB if using MMLG blocks An electronic or brushless insulation tester with a dc output not exceed...

Page 286: ...CM 4 1 With the relay de energised The following group of tests should be carried out without the auxiliary supply being applied to the relay and with the trip circuit isolated The current and voltag...

Page 287: ...17 15 13 11 9 7 5 3 1 2 18 16 14 12 10 8 6 4 17 15 13 11 9 7 5 3 1 G H J K L M 2 18 16 14 12 10 8 6 4 17 15 13 11 9 7 5 3 1 2 18 16 14 12 10 8 6 4 17 15 13 11 9 7 5 3 1 2 18 16 14 12 10 8 6 4 17 15 13...

Page 288: ...nt input one box mode three box mode Shorting contact between terminals A 1 A 1 or IB 1 or IC 1 D23 D24 B 1 A 2 or IB 2 or IC 2 D25 D26 C 1 A 3 or IB 3 or IC 3 D27 D28 A 2 A 4 or IB 4 or IC 4 D17 D18...

Page 289: ...or scheme diagram The relay diagram number appears on the rating label under the top access cover on the front of the relay The corresponding connection diagram will have been supplied with the Schne...

Page 290: ...or these checks The trip circuit should also remain isolated to prevent accidental operation of the associated circuit breaker 4 2 1 Watchdog contacts Using a continuity tester check the watchdog cont...

Page 291: ...at the relay is healthy The relay has non volatile memory which remembers the state on or off of the alarm trip and if configured to latch user programmable LED indicators when the relay was last ener...

Page 292: ...ut being tested Note The opto isolated inputs may be energised from an external dc auxiliary supply e g the station battery in some installations Check that this is not the case before connecting the...

Page 293: ...ons with the relay can be established Note The first rear communication port terminal M17 18 can be either K Bus or EIA RS 485 4 2 8 Second rear communications port This test should only be performed...

Page 294: ...the communications baud rate and parity settings in the application software are set the same as those in the relay The relays courier address in cell 0E90 COMMUNICATIONS RP2 Address must be set to a...

Page 295: ...lay is 5 However an additional allowance must be made for the accuracy of the test equipment being used Cell in MEASUREMENTS 1 column 02 Corresponding CT Ratio in CT and VT RATIOS column 0A of menu IA...

Page 296: ...O ENABLED THE RELAY SCHEME LOGIC DOES NOT DRIVE THE OUTPUT RELAYS AND HENCE THE P746 WILL NOT TRIP THE ASSOCIATED CIRCUIT BREAKER IF A BUSBAR FAULT OCCURS COMMISSIONING MODE 1 AND 2 HOWEVER THE COMMUN...

Page 297: ...um this will further reduce the commissioning time and should always be the case where application specific programmable scheme logic is to be applied to the relay Enter them manually via the relay s...

Page 298: ...rrent I2 is injected into a phase and neutral of the feeder 2 which is used as differential and bias current Idiff Ibias I2 K2 Zone percentage bias Characteristic limit Idiff ID 2 KCZ Check Zone perce...

Page 299: ...e thresholds is to inject an increasing slope for I1 and a decreasing slope for I2 The Ibias I1 I2 is thus constant and I Idiff I2 I1 is increasing IMPORTANT FOR THE CHECK ZONE THE IBIAS INCLUDES ALL...

Page 300: ...T ratio of the smallest injected current is 500 1 Ibiasmax is 1250A so ID 2 up to 750 A CM For example if k2 is 60 x 40 and if the CT ratio of the smallest injected current is 1000 1 Ibiasmax is 2000A...

Page 301: ...oing I2 Ibias 2 for 10s for example Check on the P746 HMI Tool that the right Ibias is displayed and the differential current is 0 Inject outgoing I1 Ibias x 1 m 2 and ingoing I2 Ibias x 1 m 2 for 40m...

Page 302: ...hus CM Maximum current of 50 of 2000 A 1000A to not be used by the phase comparison Maximum of bias current 2 x I2 1 n 2 x 1000 0 43 4650 A First test Chose min Ibias 2 kA more than 1834 A and less th...

Page 303: ...im 2 25 A sec and ingoing I2 2250 A prim 1 125 A sec for 10s I bias 2250 2250 4500 A I diff 2250 2250 0 A Check on the P746 HMI Tool that the right Ibias 9 kA is displayed and the differential current...

Page 304: ...On P746 go to GROUP1 BUSBAR PROTECT and set ID 1 Alarm timer to 100s Then go to COMMISSION TESTS column in the menu scroll down and change cells Monitor Bit 1 to BUSBAR_TRIPPING Doing so cell Test Po...

Page 305: ...gram Chapter P746 EN CO Connect the output relay so that its operation will trip the test set and stop the timer Connect the current output of the test set to the A phase current transformer input of...

Page 306: ...PERATING TIMES FOR 1 Re perform the tests for the function I 2 Upon completion of the tests any current differential overcurrent earth fault breaker fail or supervision elements which were disabled fo...

Page 307: ...fter 60ms the P746 displayed value will be 23ms To test the backtrip Do the same tests as for retrip however apply a faulty current for more than tBF4 and check that the backtrip signal is sent Check...

Page 308: ...hat they are correct and have not been mistakenly altered during the injection test There are two methods of checking the settings Extract the settings from the relay using a portable PC running the a...

Page 309: ...alues of the secondary phase currents with the relay s measured values which can be found in the MEASUREMENTS 1 menu column Note Under normal load conditions the earth fault function will measure litt...

Page 310: ...ction or scheme diagram Ensure that the relay has been restored to service by checking that cell COMMISSION TESTS Test Mode is set to Disabled If the menu language has been changed to allow accurate t...

Page 311: ...In Auxiliary voltage Vx Test Equipment Used This section should be completed to allow future identification of protective devices that have been commissioned using equipment that is later found to be...

Page 312: ...ed against diagram Yes No Test block connections checked Yes No na 4 1 5 Watchdog Contacts auxiliary supply off Terminals 11 and 12 Contact closed Yes No Contact resistance ____ Not measured Terminals...

Page 313: ...ut 7 working Yes No Opto input 8 working Yes No Opto input 9 working Yes No na Opto input 10 working Yes No na Opto input 11 working Yes No na Opto input 12 working Yes No na Opto input 13 working Yes...

Page 314: ...ntact resistance ____ Not measured Relay 2 Working Yes No Contact resistance ____ Not measured Relay 3 Working Yes No Contact resistance ____ Not measured Relay 4 Working Yes No Contact resistance ___...

Page 315: ...tact resistance ____ Not measured Relay 19 Working Yes No Contact resistance ____ Not measured Relay 20 Working Yes No na Contact resistance ____ Not measured Relay 21 Working Yes No na Contact resist...

Page 316: ...Applied value Displayed value A _______A _______A B one box mode _______A _______A C one box mode _______A _______A A or IB or IC three box mode _______A _______A 5 Setting Checks 5 1 Application spec...

Page 317: ..._A C one box mode _______A _______A A or IB or IC three box mode _______A _______A 7 3 Differential current checked Yes No 8 Final Checks Test wiring removed Yes No na Disturbed customer wiring re che...

Page 318: ...ppropriate Setting Groups Used Group 1 Yes No Group 2 Yes No Group 3 Yes No Group 4 Yes No 0000 SYSTEM DATA Language English Francais Deutsch Espanol Description Plant Reference Model Number Serial Nu...

Page 319: ...abled Input Labels Invisible Visible Output Labels Invisible Visible Record Control Invisible Visible Disturb Recorder Invisible Visible Measur t Setup Invisible Visible Comms Setting Invisible Visibl...

Page 320: ...7 CT Primary 3 box mode T7 CT Secondary 3 box mode T8 CT Polarity Standard inverted 3 box mode T8 CT Primary 3 box mode T8 CT Secondary 3 box mode T9 CT Polarity Standard inverted 3 box mode T9 CT Pri...

Page 321: ...box mode T16 CT Polarity Standard inverted 3 box mode T16 CT Primary 3 box mode T16 CT Secondary 3 box mode T17 CT Polarity Standard inverted 3 box mode T17 CT Primary 3 box mode T17 CT Secondary 3 bo...

Page 322: ...223 192 DDB 255 224 DDB 287 256 DDB 319 288 DDB 351 320 DDB 383 352 DDB 415 384 DDB 447 416 DDB 479 448 DDB 511 480 DDB 543 512 DDB 575 544 DDB 607 576 DDB 639 608 DDB 671 640 DDB 703 672 DDB 735 704...

Page 323: ...1599 1568 DDB 1631 1600 DDB 1663 1632 DDB 1695 1664 DDB 1727 1696 DDB 1759 1728 DDB 1791 1760 DDB 1823 1792 DDB 1855 1824 DDB 1887 1856 DDB 1919 1888 DDB 1951 1920 DDB 1983 1952 DDB 2015 1984 DDB 2047...

Page 324: ...L H Trigger H L Digital Input 3 Input 3 trigger No trigger Trigger L H Trigger H L Digital Input 4 Input 4 trigger No trigger Trigger L H Trigger H L Digital Input 5 Input 5 trigger No trigger Trigger...

Page 325: ...tal Input 21 Input 21 trigger No trigger Trigger L H Trigger H L Digital Input 22 Input 22 trigger No trigger Trigger L H Trigger H L Digital Input 23 Input 23 trigger No trigger Trigger L H Trigger H...

Page 326: ...nput 38 Input 38 trigger No trigger Trigger L H Trigger H L Digital Input 39 Input 39 trigger No trigger Trigger L H Trigger H L Digital Input 40 Input 40 trigger No trigger Trigger L H Trigger H L 0D...

Page 327: ...r Bit 3 Monitor Bit 4 Monitor Bit 5 Monitor Bit 6 Monitor Bit 7 Monitor Bit 8 Test Mode Disabled Test Mode Blocked Test Pattern DDB 31 0 DDB 63 32 DDB 95 64 DDB 127 96 DDB 159 128 DDB 191 160 DDB 223...

Page 328: ...DDB 1151 1120 DDB 1183 1152 DDB 1215 1184 DDB 1247 1216 DDB 1279 1248 DDB 1311 1280 DDB 1343 1312 DDB 1375 1344 DDB 1407 1376 DDB 1439 1408 DDB 1471 1440 DDB 1503 1472 DDB 1535 1504 DDB 1567 1536 DDB...

Page 329: ...up Settings Group 1 Settings Group 2 Settings Group 3 Settings Group 4 Settings Relay 1 Relay 2 Relay 3 Relay 4 Relay 5 Relay 6 Relay 7 Relay 8 Relay 9 Relay 10 Relay 11 Relay 12 Relay 13 Relay 14 Rel...

Page 330: ...Numbers Z1 terminals Z2 terminals Xfer Terminals ChZONE terminal Bus Coupling by Z1 Bus CT Z1 Bus CT Pol Z2 Bus CT Z2 Bus CT Pol 3100 DIFF PROTECTION Group Settings Group 1 Settings Group 2 Settings...

Page 331: ...ERCURRENT Group 1 Settings Group 1 Settings Group 2 Settings Group 3 Settings Group 4 Settings I Status I Current Set I Time Delay 3500 NON DIRECTIONAL PHASE OVERCURRENT PROTECTION Group 1 Settings Gr...

Page 332: ...2 Time delay TERMINAL 3 I 1 Function I 1 Current US IEEE I 1 Time Dial US IEEE I 1 Reset Char RI I 1 k RI UK IEC I 1 TMS TD I 1 Time Delay I 1 tReset I 2 Function I 2 Current I 2 Time delay TERMINAL 4...

Page 333: ...n I 1 Current US IEEE I 1 Time Dial US IEEE I 1 Reset Char RI I 1 k RI UK IEC I 1 TMS TD I 1 Time Delay I 1 tReset I 2 Function I 2 Current I 2 Time delay For 3 box mode only TERMINAL 7 I 1 Function I...

Page 334: ...US IEEE I 1 Time Dial US IEEE I 1 Reset Char RI I 1 k RI UK IEC I 1 TMS TD I 1 Time Delay I 1 tReset I 2 Function I 2 Current I 2 Time delay TERMINAL 10 I 1 Function I 1 Current US IEEE I 1 Time Dial...

Page 335: ...EEE I 1 Reset Char RI I 1 k RI UK IEC I 1 TMS TD I 1 Time Delay I 1 tReset I 2 Function I 2 Current I 2 Time delay TERMINAL 13 I 1 Function I 1 Current US IEEE I 1 Time Dial US IEEE I 1 Reset Char RI...

Page 336: ...I UK IEC I 1 TMS TD I 1 Time Delay I 1 tReset I 2 Function I 2 Current I 2 Time delay TERMINAL 16 I 1 Function I 1 Current US IEEE I 1 Time Dial US IEEE I 1 Reset Char RI I 1 k RI UK IEC I 1 TMS TD I...

Page 337: ...2 Time delay 3700 EARTH FAULT Only in one box mode CM Group 1 Settings Group 1 Settings Group 2 Settings Group 3 Settings Group 4 Settings TERMINAL 1 IN 1 Function IN 1 Current US IEEE IN 1 Time Dial...

Page 338: ...1 IDG IS IN 1 tReset IN 2 Function IN 2 Current IN 2 Time delay TERMINAL 4 IN 1 Function IN 1 Current US IEEE IN 1 Time Dial US IEEE IN 1 Reset Char RI IN 1 k RI UK IEC IN 1 TMS TD IN 1 Time Delay ID...

Page 339: ...ction IN 2 Current IN 2 Time delay 4500 CB FAIL I CM Group 1 Settings Group 1 Settings Group 2 Settings Group 3 Settings Group 4 Settings CBF Control by I Current Set CB Fail 1 Timer CB Fail 2 Timer C...

Page 340: ...Input 6 Opto Input 7 Opto Input 8 Opto Input 9 Opto Input 10 Opto Input 11 Opto Input 12 Opto Input 13 Opto Input 14 Opto Input 15 Opto Input 16 Opto Input 17 Opto Input 18 Opto Input 19 Opto Input 2...

Page 341: ...ut 40 4B00 OUTPUT LABELS Group 1 Settings Group 1 Settings Group 2 Settings Group 3 Settings Group 4 Settings Relay 1 Relay 2 Relay 3 Relay 4 Relay 5 Relay 6 Relay 7 Relay 8 Relay 9 Relay 10 Relay 11...

Page 342: ...P746 EN CM F21 Commissioning and Maintenance CM 10 62 MiCOM P746 CM Commissioning Engineer Customer Witness Date Date...

Page 343: ...ntrol Input 7 Latched Pulsed Ctrl Command 7 Control Input 8 Latched Pulsed Ctrl Command 8 Control Input 9 Latched Pulsed Ctrl Command 9 Control Input 10 Latched Pulsed Ctrl Command 10 Control Input 11...

Page 344: ...ntrol Input 26 Latched Pulsed Ctrl Command 26 Control Input 27 Latched Pulsed Ctrl Command 27 Control Input 28 Latched Pulsed Ctrl Command 28 Control Input 29 Latched Pulsed Ctrl Command 29 Control In...

Page 345: ...gled Normal Fn Key 7 Label Fn Key 8 Disabled Locked Unlock Fn Key 8 Mode Toggled Normal Fn Key 8 Label Fn Key 9 Disabled Locked Unlock Fn Key 9 Mode Toggled Normal Fn Key 9 Label Fn Key 10 Disabled Lo...

Page 346: ...Control Input 14 Control Input 15 Control Input 16 Control Input 17 Control Input 18 Control Input 19 Control Input 20 Control Input 21 Control Input 22 Control Input 23 Control Input 24 Control Input...

Page 347: ...Maintenance P746 EN MT A11 MiCOM P746 MT MAINTENANCE Date 2008 Hardware Suffix K Software Version 01 Connection Diagrams 10P746xx xx 01 to 07...

Page 348: ...P746 EN MT A11 Maintenance MiCOM P746...

Page 349: ...to isolators 3 1 2 3 Output relays 3 1 2 4 Measurement accuracy 3 1 3 Method of repair 4 1 3 1 Replacing the complete relay 4 1 3 2 Replacing a PCB 5 1 4 Recalibration 14 1 4 1 P746 relay 14 1 5 Chang...

Page 350: ...P746 EN MT A11 Maintenance MT 11 2 MiCOM P746 MT BLANK PAGE...

Page 351: ...failure 1 2 Maintenance checks It is recommended that maintenance checks are performed locally i e at the substation itself Before carrying out any work on the equipment the user should be familiar wi...

Page 352: ...epair However if the repair is not performed by an approved service centre the warranty will be invalidated Before carrying out any work on the equipment the user should be familiar with the contents...

Page 353: ...and trip circuit are isolated Open the top and bottom access covers With size 80TE cases the access covers have two hinge assistance T pieces which clear the front panel moulding when the access cover...

Page 354: ...ZN0019 5 9 11 Assy Opto Input ZN0017 7 Sigma delta input board Transformer PCB ZN0067 ZN0068 13 Assy IRIG B modulated only Assy IRIG B demodulated only Assy Ethernet 100Mbps only Assy Ethernet 100Mbps...

Page 355: ...n be re assembled with a replacement PCB using the reverse procedure Ensure that the ribbon cable is reconnected to the main processor board and all eight screws are re fitted P3007ENa FIGURE 3 FRONT...

Page 356: ...ZN0049001 or Ethernet and IRIG B ZN0049001 or ZN0049 002 or ZN0049 003 or second rear port or Redundant Ethernet Board ZN0071 001 to ZN0071 008 P3757ENe IRIG B RX TX Option with IRIG B Board A TX TX R...

Page 357: ...n section 1 3 2 1 After refitting and closing the access covers on size 80TE cases press at the location of the hinge assistance T pieces so that they click back into the front panel moulding Once the...

Page 358: ...on between the contacts of two terminal blocks one medium duty and one heavy duty Note Care should be taken when withdrawing the input module as it will suddenly come loose once the friction of the te...

Page 359: ...me left hand side of all MiCOM differential busbar relays Pull the power supply module forward away from the rear terminal blocks and out of the case A reasonable amount of force will be required to a...

Page 360: ...lay board is the one with holes cut in it to allow the transformer and two large electrolytic capacitors of the power supply board to protrude through To help identify that the correct board has been...

Page 361: ...slot number into which it will be fitted If the slot number is missing or incorrect write the correct slot number on the label The replacement PCB should be carefully slid into the appropriate slot e...

Page 362: ...al data section and the ratings on the equipment rating label MT 1 5 1 Instructions for replacing the battery Open the bottom access cover on the front of the relay Gently extract the battery from its...

Page 363: ...former and voltage transformer connections are isolated to prevent any chance of an electric shock whilst cleaning The equipment may be cleaned using a lint free cloth dampened with clean water The us...

Page 364: ...P746 EN MT A11 Maintenance MT 11 16 MiCOM P746 MT BLANK PAGE...

Page 365: ...Troubleshooting P746 EN TS G31 MiCOM P746 TS TROUBLESHOOTING Date 2011 Hardware Suffix K Software Version 03 Connection Diagrams 10P746xx xx 01 to 07...

Page 366: ...P746 EN TS G31 Troubleshooting MiCOM P746...

Page 367: ...SERVICE LED ILLUMINATED ON POWER UP 7 6 ERROR CODE DURING OPERATION 8 7 MAL OPERATION OF THE RELAY DURING TESTING 10 7 1 Failure of output contacts 10 7 2 Failure of opto isolated inputs 10 7 3 Incorr...

Page 368: ...P746 EN TS G31 Troubleshooting TS 12 2 MiCOM P746 TS BLANK PAGE...

Page 369: ...d so that appropriate corrective action can be taken Should the relay have developed a fault it should be possible in most cases to identify which relay module requires attention The Maintenance secti...

Page 370: ...e section referenced to perform a more detailed analysis of the problem Symptom Refer To Relay fails to power up Section 4 Relay powers up but indicates error and halts during power up sequence Sectio...

Page 371: ...dc 2 is dc If auxiliary voltage is present and correct then proceed to test 2 Otherwise the wiring fuses in auxiliary supply should be checked 2 Do LEDs and LCD backlight illuminate on power up also c...

Page 372: ...ddress lines SRAM Fail data lines FLASH Fail format error FLASH Fail checksum Code Verify Fail The following hex error codes relate to errors detected in specific relay modules These messages indicate...

Page 373: ...ndicates the causes of the failure using bit fields Bit Meaning 0 The application type field in the model number does not match the software ID 1 The application field in the model number does not mat...

Page 374: ...relay via the front panel or in the Maintenance Records can offer a considerable amount of information about the source of the error The Hex Code is reported on the front user interface of the relay i...

Page 375: ...error on the acquisition board Check the input board 0x0C170016 202833942 Secondary initialisation tests detected a fast watchdog failure Check the Flash EPROM on the main processor board 0x0C170017...

Page 376: ...this purpose If the output relay does operate then the problem must be in the external wiring to the relay If the output relay does not operate this could indicate a failure of the output relay contac...

Page 377: ...action values are not suitable for the relay and or the type of connection Modem configuration is not valid Changes may be necessary when using a modem The connection cable is not wired correctly or b...

Page 378: ...ires export Delivery and invoice addresses Contact details 3 Send RMA form to your local Schneider Electric contact 4 Receive from local service contact the information required to ship the product Yo...

Page 379: ...andatory delays in return will occur if not completed Model No Part No M Manufacturer Reference M Serial No M Software Version Quantity Site Name Project Commissioning Date Under Warranty Yes No Addit...

Page 380: ...hone No Fax No E mail Contact Name Telephone No Fax No E mail REPAIR TERMS 1 Please ensure that a copy of the import invoice is attached with the returned unit together with the airway bill document P...

Page 381: ...SCADA Communications P746 EN SC G31 MiCOM P746 SC SCADA COMMUNICATIONS Date 2011 Hardware Suffix K Software Version 03 Connection Diagrams 10P746xx xx 01 to 07...

Page 382: ...P746 EN SC G31 SCADA Communications MiCOM P746...

Page 383: ...nication port SK4 9 1 4 Ethernet communication 10 1 4 1 Legacy Protocols 10 1 4 2 IEC 61850 8 1 Protocol 11 2 COURIER INTERFACE 12 2 1 Courier protocol 12 2 2 Supported command set 12 2 3 Relay courie...

Page 384: ...ttings 28 3 7 3 Protection and disturbance recorder settings 28 3 8 Date and time format data type G12 29 3 9 Power energy measurement data formats G29 G125 30 3 9 1 Data type G29 30 3 9 2 Data type G...

Page 385: ...6 IEC 61850 ETHERNET INTERFACE 37 6 1 Introduction 37 6 2 What is IEC 61850 37 6 2 1 Interoperability 37 6 2 2 The data model 38 6 3 IEC 61850 in MiCOM relays 38 6 3 1 Capability 38 6 3 2 IEC 61850 C...

Page 386: ...RANGEMENTS 7 FIGURE 3 ETHERNET CONNEXION EXAMPLE 10 FIGURE 4 ETHERNET CONNEXION 11 FIGURE 5 MANUAL SELECTION OF A DISTURBANCE RECORD 23 FIGURE 6 AUTOMATIC SELECTION OF A DISTURBANCE OPTION 1 24 FIGURE...

Page 387: ...tre Of the three connections two are for the signal connection and the other is for the earth shield of the cable When the K Bus option is selected for the rear port the two signal connections are not...

Page 388: ...and noise reasons 1 2 1 4 Biasing It may also be necessary to bias the signal wires to prevent jabber Jabber occurs when the signal level has an indeterminate state because the bus is not being active...

Page 389: ...e form of a database and respond with information from the database when it is requested by a master unit The relay is a slave unit that is designed to be used with a Courier master unit such as MiCOM...

Page 390: ...the same Courier address The Courier address is then used by the master station to communicate with the relay Default value of remote address is 255 and must be changed The next cell down controls th...

Page 391: ...rdware option of a second rear communications port which will run the Courier language This can be used over one of three physical links twisted pair K Bus non polarity sensitive twisted pair EIA RS 4...

Page 392: ...ay will wait without receiving any messages on the rear port before it reverts to its default state including revoking any password access that was enabled For the rear port this can be set between 1...

Page 393: ...746 SC 13 11 1 4 2 IEC 61850 8 1 Protocol P746 IEC 61850 8 1 Fibre Copper PC with MiCOM S1 AND OR Ethernet Ethernet All Measurments Settings PSL events Disturbance Records P746 Ethernet Switch P746 P7...

Page 394: ...ti drop connection It should be noted that although K Bus is based on EIA RS 485 voltage levels it is a synchronous HDLC protocol using FM0 encoding It is not possible to use a standard EIA RS 232 to...

Page 395: ...ss Both the column and the row can take a range from 0 to 255 Addresses in the database are specified as hexadecimal values e g 0A02 is column 0A 10 decimal row 02 Associated settings data will be par...

Page 396: ...ing changes are verified and stored in non volatile memory 2 5 Event extraction Events can be extracted either automatically rear port only or manually either Courier port For automatic extraction all...

Page 397: ...This setting should be set to the event number value returned within the record the extended data can be extracted from the relay by uploading the text and data from the column 2 5 4 Manual event rec...

Page 398: ...been stated the rear Courier port can be used to automatically extract disturbance records as they occur This operates using the standard Courier mechanism defined in Chapter 8 of the Courier User Gu...

Page 399: ...ives 11 bits per character The following parameters can be configured for this port using either the front panel interface or the front Courier port Baud rate Device address Parity Inactivity time 3 2...

Page 400: ...the relay software is busy executing a previous request 3 4 Register mapping The relay supports the following memory page references Memory Page Interpretation 0xxxx Read and write access of the outpu...

Page 401: ...ng the relay status register 30001 G26 data type If the event bit of this register is set then the relay has unextracted events available To select the next event for sequential extraction the master...

Page 402: ...vides an option to reset the relay indications which has the same effect on the relay as pressing the clear key within the alarm viewer using the front panel menu 3 6 Disturbance record extraction The...

Page 403: ...register is used during the extraction process and has a number of commands These are b0 Select next event b1 Accept event b2 Select next disturbance record b3 Accept disturbance record b4 Select nex...

Page 404: ...action process where the disturbance being extracted was overwritten by a new record No unextracted disturbances An attempt was made by the master station to automatically select the next oldest unext...

Page 405: ...ID value of the required record to register 4x00250 Get Disturbance Time stamp from registers 3x00930 3x00933 optional Yes P1460ENa FIGURE 5 MANUAL SELECTION OF A DISTURBANCE RECORD SC 3 6 2 2 Automat...

Page 406: ...acceptance of the disturbance record once the extraction is complete P1461ENa Start Read Status word from register 3x00001 Is disturbance bit Bit 4 set No Yes Select next Oldest unextracted Record by...

Page 407: ...once the extraction is complete P1462ENa Start Read Status word from register 3x00001 Is disturbance bit Bit 4 set Yes Select next Oldest unextracted Record by writing 0x04 to register 4x00400 No Send...

Page 408: ...elay P1463ENa Start Record Selected Read DR status value from register 3x00934 What is the value of DR status Read number of registers in data page from address 3x00802 Page Ready Read data page regis...

Page 409: ...d Get Next Page of Data to register 4x00400 Record Complete Record Complete Mark record as extracted automatic extraction only Other Check DR Status For Error Conditions or Busy status Busy Send Selec...

Page 410: ...s currently enabled then all setting changes in the write operation will be discarded 3 7 1 Password protection As described in the introduction to this service manual the relay settings can be subjec...

Page 411: ...shown in Table 3 1 and is compliant with the IEC60870 5 4 Binary Time 2a format The seven bytes of the structure are packed into four 16 bit registers such that byte 1 is transmitted first followed b...

Page 412: ...the G29 format The floating point G125 versions appear at the end of the column 3 9 1 Data type G29 Data type G29 consists of three registers The first register is the per unit power or energy measure...

Page 413: ...ter set is 64 10 000 000 640MW Note that there is an actual error of 49MW in this calculation due to loss of resolution The registers would contain 30300 0040h 30301 0098h 30302 9680h 3 9 2 Data type...

Page 414: ...d a reset command is required to initialize the communications The relay will respond to either of the two reset commands Reset CU or Reset FCB the difference being that the Reset CU will clear any un...

Page 415: ...rated value of the analog value 4 7 Commands A list of the supported commands is contained in the menu database P746 EN MD The relay will respond to other commands with an ASDU 1 with a cause of tran...

Page 416: ...ntains information describing the state of signals within the relay which mostly form part of the digital data bus DDB In general these include the state of the output contacts and input optos alarm s...

Page 417: ...current and voltage frequency is outside the tracking range of the relay or the thermal state when the thermal protection is disabled in the configuration column Note that all object 30 points are rep...

Page 418: ...some of the counters that are selected as running are not also selected as frozen then the renumbering will result in the frozen counters having different point numbers to their running counterparts F...

Page 419: ...r to peer e g relay to relay communication The standard includes mapping of data onto Ethernet Using Ethernet in the substation offers many advantages most significantly including High speed data rate...

Page 420: ...d with For example Pos position of Logical Node type XCBR Data Attribute This is the actual data measurement value status description etc For example stVal status value indicating actual position of c...

Page 421: ...D file or CID file to be imported and transferred to the IED Alongside this the requirements of manual configuration are satisfied by allowing the manual creation of configuration files for MiCOM rela...

Page 422: ...of the IEC 61850 standard 6 5 The communication services of MiCOM relays The IEC 61850 communication services which are implemented in the Px30 and Px40 relays are described in the Protocol Implementa...

Page 423: ...ternal Binding tab in the configuration editor window Care should be taken to ensure that the configuration is correct to ensure efficient GOOSE scheme operation Settings to enable GOOSE signalling an...

Page 424: ...P746 EN SC G31 SCADA Communications SC 13 42 MiCOM P746 SC BLANK PAGE...

Page 425: ...Symbols and Glossary P746 EN SG F21 MiCOM P746 SG SYMBOLS AND GLOSSARY Date 2008 Hardware Suffix K Software Version 02 Connection Diagrams 10P746xx xx 01 to 07...

Page 426: ...P746 EN SG F21 Symbols and Glossary MiCOM P746...

Page 427: ...An Isolator closed auxiliary contact The contact is in the same state as the breaker primary contacts 89b An Isolator open auxiliary contact The contact is in the opposite state to the breaker primary...

Page 428: ...An underfrequency element Could be labelled 81U in ANSI terminology F An overfrequency element Could be labelled 81O in ANSI terminology FLC Full load current The nominal rated current for the circui...

Page 429: ...nology I 4 Fourth stage of phase overcurrent protection Could be labelled 51 4 in ANSI terminology I BB Minimum pick up phase threshold for the local trip order confirmation I DZ Minimum pick up phase...

Page 430: ...d 51N 2 in ANSI terminology IN BB Minimum pick up neutral threshold for the local trip order confirmation IN DZ Minimum pick up neutral threshold for the Dead Zone protection Inh An inhibit signal Ins...

Page 431: ...ate Indicates a NOT invert function O P Abbreviation of output Opto An optocoupled logic input Alternative terminology binary input P1 Used in IEC terminology to identify the primary CT terminal polar...

Page 432: ...gy to identify the secondary CT terminal polarity Replace by a dot when using ANSI standards S2 Used in IEC terminology to identify the secondary CT terminal polarity The non dot terminal SCL Substati...

Page 433: ...erminology VC Phase C voltage Might be phase L3 blue phase or other in customer terminology VCO Voltage controlled overcurrent element Vk IEC knee point voltage of a current transformer Vn The rated n...

Page 434: ...t t INPUT OUTPUT INPUT OUTPUT t 0 t Delay on drop off timer t t t INPUT OUTPUT INPUT OUTPUT t1 t2 Delay on pick up drop off timer t1 t2 t1 t2 INPUT OUTPUT INPUT OUTPUT t Pulse timer t t INPUT OUTPUT...

Page 435: ...ossary P746 EN SG F21 MiCOM P746 SG 14 9 SG Logic Symbols Explanation Time Chart Timer Dwell Dwell timer t t INPUT OUTPUT INPUT OUTPUT Straight Straight non latching Hold value until input reset signa...

Page 436: ...l Truth Table IN 1 1 0 1 0 1 0 1 1 0 0 0 A B Y OUT IN 1 1 1 1 0 0 0 1 0 0 0 1 A B Y OUT IN 1 1 1 1 0 0 0 1 0 0 0 1 A B Y OUT EXCLUSIVE OR GATE XOR A B Y XOR A B Y XOR A B Y Symbol Truth Table Symbol T...

Page 437: ...Installation P746 EN IN G31 MiCOM P746 IN INSTALLATION Date 2011 Hardware Suffix K Software Version 03 Connection Diagrams 10P746xx...

Page 438: ......

Page 439: ...3 STORAGE 5 4 UNPACKING 6 5 RELAY MOUNTING 7 5 1 Rack mounting 8 5 2 Panel mounting 9 6 RELAY WIRING 10 6 1 Medium and heavy duty terminal block connections 10 6 2 RS485 port 10 6 3 IRIG B connections...

Page 440: ...P746 EN IN G31 Installation IN 15 2 MiCOM P746 IN BLANK PAGE...

Page 441: ...ediately to ensure no external damage has been sustained in transit If damage has been sustained a claim should be made to the transport contractor and Schneider Electric should be promptly notified R...

Page 442: ...me or edges of the circuit boards Printed circuit boards should only be handled by their edges Avoid touching the electronic components printed circuit tracks or connectors 3 Do not pass the module to...

Page 443: ...ut an hour prior to replacing it in the carton To prevent battery drain during transportation and storage a battery isolation strip is fitted during manufacture With the lower access cover open presen...

Page 444: ...tion strip will be seen protruding from the positive side of the battery compartment Do not remove this strip because it prevents battery drain during transportation and storage and will be removed as...

Page 445: ...iewed from the front it is positioned on the right hand side of the relay or relays with which it is associated This minimises the wiring between the relay and test block and allows the correct test b...

Page 446: ...OS relays have marginally larger heads which can damage the front cover moulding if used Once the tier is complete the frames are fastened into the racks using mounting angles at each end of the tier...

Page 447: ...to mounting in the panel Note It is not advised that MiCOM relays are fastened using pop rivets as this will not allow the relay to be easily removed from the panel in the future if repair is necessar...

Page 448: ...mm2 Auxiliary Supply Vx 1 5mm2 RS485 Port See separate section Other circuits 1 0mm2 Due to the limitations of the ring terminal the maximum wire size that can be used for any of the medium or heavy d...

Page 449: ...0nm multi mode 100BaseFx and BFOC 2 5 ST connectors one Tx optical emitter one Rx optical receiver 6 6 Download monitor port Short term connections to the download monitor port located behind the bott...

Page 450: ...ERMINAL SCREWS M4 x 7 BRASS CHEESE HEAD SCREWS WITH LOCK WASHERS PROVIDED TYPE OF FIBRE OPTIC CONNECT OR ST 240 0 157 5 MAX P3797ENb SECONDARY COVER WHEN FITTED INCL WIRING SIDE VIEW 30 0 406 9 413 2...

Page 451: ...0 8 6 4 17 15 13 11 9 7 5 3 1 B E F D C 1 2 3 4 5 6 7 8 9 28 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 1 2 3 4 5 6 7 8 9 28 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 P746back3...

Page 452: ...12 10 8 6 4 17 15 13 11 9 7 5 3 1 2 18 16 14 12 10 8 6 4 17 15 13 11 9 7 5 3 1 2 18 16 14 12 10 8 6 4 17 15 13 11 9 7 5 3 1 2 18 16 14 12 10 8 6 4 17 15 13 11 9 7 5 3 1 2 18 16 14 12 10 8 6 4 17 15 13...

Page 453: ...A A B C C B A PHASE ROTATION MiCOM P746 PART B C A VIEWED FROM REAR MODULE TERMINAL BLOCK 19 27 25 21 23 17 15 13 11 3 1 20 28 26 22 24 18 16 14 12 4 2 NOTE 2 A b n a c B A N C NOTE 3 B C D3 F2 F1 V...

Page 454: ...20 28 26 22 24 18 16 14 12 4 2 PIN TERMINAL P C B TYPE TERMINAL 3 THE MONITORED THREE PHASE VOLTAGE MAY BE CONNECTED HV OR LV SIDE 2 THE VT STAR POINT MUST BE MADE EXTERNALLY AS SHOWN C T SHORTING LI...

Page 455: ...L1 M12 M11 E3 G17 G18 G1 G9 G13 G15 G16 G14 G11 G12 G10 G5 G7 G8 G6 G3 G4 G2 E11 E15 E17 E18 E16 E13 E14 E12 E7 E9 E10 E8 E5 E6 E4 E1 E2 COMMS OPTIONS 10Px4001 SEE DRAWING CONNECTION COMMON OPTO 2 OP...

Page 456: ...16 RELAY 10 RELAY 11 RELAY 12 L13 L16 L17 L15 L14 L18 RELAY 7 RELAY 8 L3 L5 L6 L4 H7 L9 L12 L11 L10 L8 RELAY 4 RELAY 5 RELAY 6 RELAY 2 RELAY 3 M11 L1 L2 M14 M13 M12 CONTACT RELAY 1 WATCHDOG CONTACT WA...

Page 457: ...1 J2 RELAY 17 RELAY 15 RELAY 16 RELAY 14 RELAY 13 RELAY 11 RELAY 12 RELAY 9 RELAY 10 RELAY 7 RELAY 8 RELAY 5 RELAY 6 RELAY 4 RELAY 2 RELAY 3 RELAY 1 WATCHDOG CONTACT CONTACT WATCHDOG L9 K16 K17 K18 K1...

Page 458: ...26 RELAY 25 V 48V DC FIELD VOLTAGE OUT M7 M10 M9 M8 M2 M1 AC OR DC AUX SUPPLY x COMMS OPTIONS PORT KBUS EIA485 SEE DRAWING 10Px4001 M17 M18 SCN M16 SEE DRAWING 10Px4001 J13 RELAY 24 RELAY 23 J18 J17 J...

Page 459: ...K12 K13 K11 K14 K10 RELAY 13 RELAY 14 RELAY 12 RELAY 11 L16 L17 L15 K1 K2 L18 K4 K3 L14 RELAY 10 RELAY 9 RELAY 8 RELAY 7 L3 L5 L6 L4 L9 L8 H7 L12 L11 L10 RELAY 4 RELAY 6 RELAY 5 RELAY 3 RELAY 2 M11 M1...

Page 460: ...7 L15 L14 L3 L8 L9 L12 L11 L10 L5 L6 L4 H7 M12 L1 L2 M14 M13 POWER SUPPLY VERSION 24 48V NOMINAL D C ONLY 10Px4001 SEE DRAWING RELAY 24 V 48V DC FIELD VOLTAGE OUT M7 M10 M9 M8 M2 M1 AC OR DC AUX SUPPL...

Page 461: ...PTO 22 H4 H6 H5 H7 H2 H3 H1 OPTO 19 OPTO 20 OPTO 17 OPTO 18 COMMS OPTIONS SEE DRAWING 10Px4001 HIGH BREAK CONTACTS POWER SUPPLY VERSION 24 48V NOMINAL D C ONLY K16 RELAY 12 L12 K3 K11 K15 K12 K8 RELAY...

Page 462: ...18 J17 J12 J13 J14 J11 RELAY 23 RELAY 24 RELAY 22 J5 J7 J9 J8 J6 J1 J4 J3 J2 RELAY 20 RELAY 19 RELAY 17 RELAY 18 OPTO 18 OPTO 17 OPTO 20 OPTO 19 OPTO 22 OPTO 21 OPTO 24 OPTO 23 COMMON CONNECTION G7 G1...

Page 463: ...22 H8 H7 H6 OPTO 19 OPTO 20 H1 H3 H2 H4 OPTO 17 OPTO 18 RELAY 17 RELAY 19 RELAY 18 RELAY 20 RELAY 22 RELAY 21 RELAY 23 RELAY 24 EIA485 KBUS PORT AC OR DC AUX SUPPLY VOLTAGE OUT 48V DC FIELD M8 M9 M10...

Page 464: ...NECTION C6 C11 C14 C13 C12 C7 C10 C9 C8 C2 C3 C5 C4 C1 OPTO 31 OPTO 30 OPTO 29 OPTO 28 OPTO 25 OPTO 27 OPTO 26 MiCOM P746 PART 10Px4001 SEE DRAWING MiCOM P746 PART POWER SUPPLY VERSION 24 48V NOMINAL...

Page 465: ...Installation P746 EN IN G31 MiCOM P746 IN 15 27 IN 10P74611 1 FIGURE 18 MiCOM P746 80TE WIRING DESCRIPTION P746xxxL...

Page 466: ...P746 EN IN G31 Installation IN 15 28 MiCOM P746 IN 8 COMMUNICATION OPTIONS 10Px4001 1 FIGURE 19 MiCOM P746 80TE COMMUNICATION OPTIONS...

Page 467: ...Remote HMI P746 EN HI G31 MiCOM P746 HI REMOTE HMI Date 2011 Hardware Suffix K Software Version 03 Connection Diagrams 10P746xx xx 01 to 07...

Page 468: ......

Page 469: ...10 3 2 Constraints 15 3 3 Designing the scheme 16 3 3 1 Creating a new blank scheme 16 3 3 2 Creating a Busbar 17 3 3 3 Creating a Busbar Link 17 3 3 4 Creating a Tie Group 17 3 3 5 Creating a Feeder...

Page 470: ...P746 EN HI G31 Remote HMI HI 16 2 MiCOM P746 HI BLANK PAGE...

Page 471: ...e predefined Busbars Tie Groups and Feeder Groups Dynamic Synoptic This tool is used to display the P746 measured analogue quantities and DDB Digital Data Bus status information based on the scheme de...

Page 472: ...or Dynamic Synoptic mode The selected communication option and their settings will be displayed in the left side of the Status Bar always Schemes for Communication Setup There are 3 possible schemes...

Page 473: ...aud Rate Select the Baud Rate to be used The options are 19200 and 9600 Framing Framing determines how many bits there are in a character and what the bits are used for This includes the number of sta...

Page 474: ...P746 EN HI G31 Remote HMI HI 16 6 MiCOM P746 Transaction Values Busy Hold off Time Busy Count Reset Response Time Response Time Retry Count Transmit Delay Time and Global Transmit Time HI...

Page 475: ...ss Mandatory Set the IP address though which P746 can be connected TCP Port number Optional Select this option if specific ETHERNET TCP port has to be used If this option is not selected default ETHER...

Page 476: ...46 Transaction Values Busy Hold off Time Busy Count Reset Response Time Response Time Retry Count Transmit Delay Time and Global Transmit Time 2 3 Miscellaneous Device Address Settings Set the Device...

Page 477: ...SCHEME EDITOR The Scheme Editor window is used to design the scheme for the P746 Relay using Busbar Feeder Group and Tie Group graphical icons The Main Window is composed of following parts The Menu...

Page 478: ...window These symbols can be easily dragged and dropped into the Scheme Window The initial drag and drop placement of an object onto the scheme editor page will not be possible if the grey imaginary b...

Page 479: ...Groups Toolbox S No Tie Group Name Tie Group Icon 1 Tie Group 1 2 Tie Group 2 3 Tie Group 3 4 Tie Group 4 5 Tie Group 5 6 Tie Group 6 Feeder Groups Toolbox S No Feeder Group Name Feeder Group Icon 1 F...

Page 480: ...P746 EN HI G31 Remote HMI HI 16 12 MiCOM P746 HI S No Feeder Group Name Feeder Group Icon 4 Feeder Group 4 5 Feeder Group 5 6 Feeder Group 6...

Page 481: ...Remote HMI P746 EN HI G31 MiCOM P746 HI 16 13 HI S No Feeder Group Name Feeder Group Icon 7 Feeder Group 7 8 Feeder Group 8 9 Feeder Group 9 10 Feeder Group 10...

Page 482: ...P746 EN HI G31 Remote HMI HI 16 14 MiCOM P746 HI S No Feeder Group Name Feeder Group Icon 11 Feeder Group 11 12 Feeder Group 12 13 Feeder Group 13 14 Feeder Group 14...

Page 483: ...of such an object is touching or overlapping with another object already placed on the page Feeder Group cannot be created before creating at least one busbar in the scheme The Feeder group and Tie gr...

Page 484: ...dow appears as shown below If P746 relay is connected select Relay Connected option and press OK button The P746 mode will be retrieved from P746 and a new scheme will be created Otherwise select Rela...

Page 485: ...press OK button to create the Busbar To increase the length of the Busbar click on the endpoint and drag the mouse until enough Busbar length is achieved 3 3 3 Creating a Busbar Link Drag and drop Bu...

Page 486: ...llowed in a scheme Same CTs are not allowed for CT1 and CT2 for Tie Groups with double CTs 3 3 5 Creating a Feeder Group Drag and drop Feeder Group symbol from Feeder Group Toolbox into the Scheme Win...

Page 487: ...d Tie Groups will be associated dynamically when they are moved nearer to the Busbar The following are the examples of association of Zone for Isolators in Feeder Groups S No Description Before Associ...

Page 488: ...M P746 The following are the examples of association of Zone for Isolators in Tie Groups S No Description Before Association After Association 1 Association of Tie Group with Busbar Links 2 Associatio...

Page 489: ...the submenu that appears Left click the mouse on the point where the object is to be pasted If the new position of the object overlaps with any other object the object will not be pasted and a beep w...

Page 490: ...al components present in the scheme and analogue values in real time In Dynamic Synoptic mode the main window consists of following parts The Menu Bar The Toolbar Scheme Window Measurements Window Sta...

Page 491: ...in the scheme The respective icons are animated based on the states polled from P746 and the load currents are displayed near each CT These values are updated periodically with the information polled...

Page 492: ...ages for connected zone DDB Status information for Protection Status Trip Status Blocked Zone Trip Zone and Alarm DDB Signals Zone Measurements HI In 1 Box mode Differential and Bias Currents per phas...

Page 493: ...Blocked Zone This indicates which zone is blocked The colors used are GREEN for OK and RED for BLOCKED state Trip Zone This indicates which zone is tripped The colors used are GREEN for NO TRIP and R...

Page 494: ...the Toolbar to open the saved scheme No actions except new and exit is available before opening a scheme Save If the scheme is kept opened and clicks the File Save menu or Save icon in the Toolbar th...

Page 495: ...Remote HMI P746 EN HI G31 MiCOM P746 HI 16 27 Print Select File Print to display a dialog box as shown below that allows to select the printer though which the scheme is to be printed HI...

Page 496: ...ctions Undo Select Edit Undo menu or Type CTRL Z or Undo icon in the Toolbar to cancel the last action Redo Select Edit Redo menu or Type CTRL Y or Redo icon in the Toolbar to bring again the cancelle...

Page 497: ...lick View Zoom Zoom Out menu or Zoom Out icon in the Toolbar to minimize the scheme from 200 to 25 Grid Click View Grid menu to view and hide the grid in the scheme 5 4 Device The Device menu proposes...

Page 498: ...ng polled from P746 Select Device Stop Polling menu to stop polling in the Dynamic Synaptic mode 5 5 Mode The MODE menu contains only one sub menu whose functionality differs in idle condition Scheme...

Page 499: ...h menu to choose English language French Select Language Fran ais menu to choose French language Spanish Select Language Espa ol menu to choose Spanish language German Select Language Deutsch menu to...

Page 500: ...P746 EN HI G31 Remote HMI HI 16 32 MiCOM P746 HI BLANK PAGE...

Page 501: ...Cyber S curity P746 EN CS G31 MiCOM P746 CS CYBER SECURITY Date 2011 Hardware Suffix K Software Version 03 Connection Diagrams 10P746xx xx 01 to 07...

Page 502: ......

Page 503: ...2007 9 4 PX40 CYBER SECURITY IMPLEMENTATION 10 4 1 Four level Access 11 4 1 1 Default Passwords 12 4 1 2 Password Rules 12 4 1 3 Access Level DDBs 12 4 2 Password Strengthening 12 4 3 Password valida...

Page 504: ...P746 EN CS A11G31 Cyber Security CS 17 2 MiCOM P746 CS BLANK PAGE...

Page 505: ...g sophistication of protection schemes coupled with the advancement of technology and the desire for vendor interoperability has resulted in standardization of networks and data interchange within sub...

Page 506: ...nal e g natural disasters human error or intentional e g cyber attacks by hackers Good cyber security can be achieved with a range of measures such as closing down vulnerability loopholes implementing...

Page 507: ...ntifying new topics such as patch management IEEE 1686 International International Standard for substation IED cyber security capabilities IEC 62351 International Power system data and Comm protocol I...

Page 508: ...or electronic access CIP 006 1 Physical Security Define and document Physical Security Perimeters within which Critical Cyber Assets reside CIP 007 1 Systems Security Management Define and document sy...

Page 509: ...bution To provide appropriate training of its personnel We can provide cyber security training 3 1 4 CIP 005 CIP 005 requires the establishment of an Electronic Security Perimeter ESP which provides T...

Page 510: ...provide advise and assistance Account management We can provide advice and assistance Monitoring Our equipment monitors and logs access 3 1 7 CIP 008 CIP 008 requires that an incident response plan b...

Page 511: ...pper case lower case numeric and special characters Passwords are never displayed or transmitted to a user IED functions and features are assigned to different password levels The assignment is fixed...

Page 512: ...the associated threats and risks This section describes the current implementation of cyber security valid for the release of platform software to which this manual pertains This current cyber securit...

Page 513: ...COM S1 Studio 2 Read All Write Some All data and settings are readable Poll Measurements All items writeable at level 1 Setting Cells that change visibility Visible Invisible Setting Values Primary Se...

Page 514: ...ent level of access for each interface is also available for use in the Programming Scheme Logic PSL by mapping to these Digital Data Bus DDB signals HMI Access Lvl 1 HMI Access Lvl 2 FPort AccessLvl1...

Page 515: ...e the password irrespective of whether it is or isn t NERC compliant and then uses appropriate response codes to inform the client that the password was NERC compliant or not The client then can choos...

Page 516: ...s timer and blocking timer can be configured as shown in Table 4 Setting Cell col row Units Default Setting Available Setting Attempts Limit 25 02 3 0 to 3 step 1 Attempts Timer 25 03 Minutes 2 1 to 3...

Page 517: ...achieve the same result irrespective of which interface it is applied through 4 4 2 Password Encryption The IED supports encryption for passwords entered remotely The encryption key can be read from t...

Page 518: ...Tunnelling Note If any of these protocols are enabled or disabled the Ethernet card will reboot 4 6 Logging out If you have been configuring the IED you should log out You do this by going up to the t...

Page 519: ...RD SET NON COMPLIANT P WORD NOT NERC BY int LEVEL p PASSWORD MODIFIED PASSWORD CHANGED BY int LEVEL p PASSWORD ENTRY BLOCKED PASSWORD BLOCKED ON int PASSWORD ENTRY UNBLOCKED P WORD UNBLOCKED ON int IN...

Page 520: ...DED DNP STNG UPLOAD BY int TRACE DATA UPLOADED TRACE DAT UPLOAD BY int IEC61850 CONFIG UPLOADED IED CONFG UPLOAD BY int USER CURVES UPLOADED USER CRV UPLOAD BY int GROUP crv PSL CONFIG UPLOADED PSL CO...

Page 521: ...er 25 In addition to this new group settings are affected in the SYSTEM DATA COMMS SYS DATA and VIEW RECORDS columns A summary of the relevant columns is shown in Table 6 A complete listing of the set...

Page 522: ...W Level 25 20 0 0 Password Level 0 1 Password Level 1 2 Password Level 2 3 Password Level 3 All Yes Not Settable Security Code 25 FF User interface Only No Evt Unique Id Normal Extraction 01 FE All No...

Page 523: ...Firmware and Service Manual P746 EN VH G31 Version History MiCOM P746 VH VH FIRMWARE AND SERVICE MANUAL VERSION HISTORY Date 2011 Hardware Suffix K Software Version 03 Connection Diagrams 10P746xx...

Page 524: ...P746 EN VH G31 Firmware and Service Manual Version History MiCOM P746...

Page 525: ...rovement of the CBF undercurrent detection reset V2 14 P746 EN xx B11 01 D K Feb 2009 Addition of high break boards V2 14 P746 EN xx C11 01 E K May 2009 Improvement of internal fault tripping V2 14 P7...

Page 526: ...P74 VH 18 VH 6 EN VH G31 Firmware and Service Manual Version History 2 MiCOM P746 Relay Software Version 01 02 03 01 02 03 Setting File Software Version...

Page 527: ...VH Firmware and Service Manual P746 EN VH G31 Version History MiCOM P746 VH 18 3 Relay Software Version 01 02 03 01 9 9 9 02 9 9 9 03 9 9 9 PSL File Software Version P742 P743...

Page 528: ...P74 VH 18 VH 6 EN VH G31 Firmware and Service Manual Version History 4 MiCOM P746 Relay Software Version 01 02 03 01 02 03 Menu Text File Software Version...

Page 529: ......

Page 530: ...ll rights reserved Schneider Electric 35 rue Joseph Monier 92506 Rueil Malmaison FRANCE Phone 33 0 1 41 29 70 00 Fax 33 0 1 41 29 71 00 www schneider electric com Publishing Schneider Electric Publica...

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