BECKWITH ELECTRIC M-3425A Instruction Book Download Page 448

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F–9

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Summary of Contents for M-3425A

Page 1: ...Instruction Book M 3425A Generator Protection ...

Page 2: ...T Under Frequency Time Accumulation 81A Inadvertent Energizing 50 27 and Turn to Turn Fault 59X Expanded IPScom Communications Software provides simple and logical setting and programming including logic schemes Simple application with Base and Comprehensive protection packages Load encroachment blinders and power swing blocking for system backup protection 21 to enhance security during system abn...

Page 3: ...4S option 20 Hz signal generator 430 00426 Band pass Filter 430 00427 400 5 A 20 Hz CT 430 00428 Protective Functions Base Package Overexcitation V Hz 24 Phase Undervoltage 27 Directional power sensitive triple setpoint Reverse Power Low Forward Power or Overpower detection one of which can be used for sequential tripping 32 Dual zone offset mho Loss of Field 40 which may be applied with undervolt...

Page 4: ...ly 50 and 60 Hz models available Both 1A and 5 A rated CT inputs available Additional trip inputs for externally con nected devices IRIG B time synchronization Operating Temperature 20 C to 70 C Sequence of Events Log Trip Circuit Monitoring Breaker Monitoring Four Setpoint Groups Optional Features Redundant power supply M 3925A Target Module M 3931 Human Machine Interface HMI Module RJ45 Ethernet...

Page 5: ...for blocking Function 21 1 and or 21 2 Volts Hz Definite Time Pickup 1 2 100 to 200 1 1 Time Delay 1 2 30 to 8160 Cycles 1 Cycle 25 Cycles Inverse Time Pickup 100 to 200 1 1 Characteristic Curves Inverse Time 1 4 Time Dial Curve 1 1 to 100 1 1 Time Dial Curves 2 4 0 0 to 9 0 0 1 1 Reset Rate 1 to 999 Sec 1 Sec 1 Second or 1 from threshold of trip The percent pickup is based on nominal VT secondary...

Page 6: ...e Delay 1 2 3 1 to 8160 Cycles 1 Cycle 16 Cycles or 1 The minimum Pickup limits are 002 and 002 respectively The per unit pickup is based on nominal VT secondary voltage and nominal CT secondary current settings This function can be selected as either overpower or underpower in the forward direction positive setting or reverse direction negative setting Element 3 can be set as real power or reacti...

Page 7: ...1 to 8160 Cycles 1 Cycle 1 Cycle or 1 When frequency f is fnom 5 Hz add an additional time of 1 5 f 0 033 sec to the time delay accuracy Breaker Failure Pickup Phase Current 0 10 to 10 00 A 0 01 A 0 1 A or 2 0 02 to 2 00 A 0 02 A or 2 Neutral Current 0 10 to 10 00 A 0 01 A 0 1 A or 2 0 02 to 2 00 A 0 02 A or 2 Time Delay 1 to 8160 Cycles 1 Cycle 1 Cycle or 1 50BF can be initiated from designated M...

Page 8: ...stic Curve Definite Time Inverse Very Inverse Extremely Inverse IEC Curves Moderately Inverse Very Inverse Extremely Inverse IEEE Curves Time Dial 0 5 to 11 0 0 1 3 Cycles or 3 0 05 to 1 10 IEC curves 0 01 0 5 to 15 0 IEEE curves 0 01 For IEC Curves the timing accuracy is 5 When the frequency f is fnom 5 Hz add an additional time of 1 5 f 0 033 sec to the time delay accuracy Inverse Time Phase Ove...

Page 9: ... to be less than 0 5 V the 59D function can not be used The 59D function with VX cannot be enabled if the 25 function is enabled The line side voltage can be selected as the third harmonic of 3V0 equivalent to VA VB VC or VX 3V0 selection for line side voltage can only be used with line ground VT configuration Neutral Overvoltage Pickup 1 2 3 5 0 to 180 0 V 0 1 V 0 5 V or 0 5 Time Delay 1 2 3 1 to...

Page 10: ...ne ground VT configuration Operating current for 67N can be selected as 3Io calculated or IN Residual CT If 87GD is enabled 67N with IN Residual CT operating current will not be available Out of Step mho characteristic Circle Diameter 0 1 to 100 0 Ω 0 1 Ω 0 1 Ω or 5 0 5 to 500 0 Ω 0 5 Ω or 5 Offset 100 0 to 100 0 Ω 0 1 Ω 0 1 Ω or 5 500 0 to 500 0 Ω 0 5 Ω or 5 Impedance Angle 0 to 90 1 1 Blinder 0 ...

Page 11: ...es to 50 Hz nominal frequency models Rate of Change of Frequency Pickup 1 2 0 10 to 20 00 Hz Sec 0 01 Hz Sec 0 05 Hz Sec or 5 Time Delay 1 2 3 to 8160 Cycles 1 Cycle 20 Cycles Negative Sequence Voltage Inhibit 0 to 99 1 0 5 Phase Differential Current Pickup 1 2 0 20 A to 3 00 A 0 01 A 0 1 A or 5 0 04 to 0 60 A 0 02 A or 5 Percent Slope 1 2 1 to 100 1 2 Time Delay 1 2 1 to 8160 Cycles 1 Cycle 1 Cyc...

Page 12: ...any phase the relay can set a programmable output contact The accumulated value for each phase can be displayed The Breaker Monitoring feature requires an initiating contact to begin accumulation and the accumulation begins after the set time delay Trip Circuit Monitoring Time Delay 1 to 8160 Cycles 1 Cycle 1 Cycle or 1 The AUX input is provided for monitoring the integrity of the trip circuit Thi...

Page 13: ...When 64F is purchased an external Coupler Module M 3921 is provided for isolation from dc field voltages Figure 10 Field Ground Protection Block Diagram illustrates a typical connection utilizing the M 3921 Field Ground Coupler Hardware dimensional and mounting information is shown in Figure 11 M 3921 Field Ground Coupler Mounting Dimensions 100 Stator Ground Protection by low frequency injection ...

Page 14: ...ely 1 second Metering The relay provides metering of voltages phase neutral and sequence quantities currents phase neutral and sequence quantities real power reactive power power factor and impedance measurements Metering accuracies are Voltage 0 5 V or 0 5 whichever is greater 0 8 V or 0 75 whichever is greater when both RMS and Line Ground to Line Line are selected Current 5 A rating 0 1 A or 3 ...

Page 15: ...d to power the relay Burden nominal 46 VA 120 V ac Sensing Inputs Five Voltage Inputs Rated for a nominal voltage of 50 V ac to 140 V ac at 60 Hz or 50 Hz Will withstand 240 V continuous voltage and 360 V for 10 seconds Source voltages may be line to ground or line to line connected Phase sequence ABC or ACB is software selectable Voltage transformer burden less than 0 2 VA at 120 V ac Seven Curre...

Page 16: ...owing functions when used with the Windows compatible S 3400 IPScom Communications Software MODBUS and BECO 2200 protocols are supported providing Interrogation and modification of setpoints Time stamped information for the 32 most recent trips Real time metering of all quantities measured Downloading of recorded oscillographic data and Sequence of Events Recorder data The optional Ethernet port c...

Page 17: ...toring Application I O Expansion optional Optional I O Expansion provides an additional 15 form a output contacts and an additional 8 control status inputs Output LEDs indicate the status of the output relays Tests and Standards The relay complies with the following type tests and standards Voltage Withstand Dielectric Withstand IEC 60255 5 3 500 V dc for 1 minute applied to each independent circu...

Page 18: ... each independent circuit 2002 4 000 V pk Fast Transient burst applied to each independent circuit to earth 4 000 V pk Fast Transient burst applied between each independent circuit NOTE The signal is applied to the digital data circuits RS 232 RS 485 IRIG B Ethernet communication port and field ground coupling port through capacitive coupling clamp Radiated Susceptibility ANSI IEEE 25 1000 Mhz 35 ...

Page 19: ... a standard 19 semiflush four unit high rack mount panel design conforming to ANSI EIA RS 310C and DIN 41494 Part 5 specifications Vertical or horizontal panel mount options are available Approximate Weight 19 lbs 8 6 kg Approximate Shipping Weight 26 lbs 11 8 kg Recommended Storage Parameters Temperature 5 C to 40 C Humidity Maximum relative humidity 80 for temperatures up to 31 C decreasing to 3...

Page 20: ...nformation regarding setting Trip Circuit Monitoring input voltage Connecting a voltage other than the voltage that the unit is configured to may result in mis operation or permanent damage to the unit 3 8 WARNING ONLY DRY CONTACTS must be connected to inputs terminals 5 through 10 with 11 common because these contact inputs are internally wetted Application of external voltage on these inputs may...

Page 21: ...ng Trip Circuit Monitoring input voltage Connecting a voltage other than the voltage that the unit is configured to may result in mis operation or permanent damage to the unit 3 8 WARNING ONLY DRY CONTACTS must be connected to inputs terminals 5 through 10 with 11 common and terminals 68 through 75 with 66 and 67 common because these contact inputs are internally wetted Application of external vol...

Page 22: ...ort Optional Rear RS 485 Communication Breaker Monitoring Trip Circuit Monitoring 67N 67N Polarization Software Select 81A 50N 50 BFN 51N 46 59X 59N 3VO Calculated VX VN 3IO IN 67N Operating Current Software Select VT Note 1 Note 3 Note 5 CT Residual Note 4 59D Line Side Voltage Software Select VX 3VO Calculated CT Neutral Notes 2 5 CT M Metering M Metering Rear RS232 Communication Event Log NOTES...

Page 23: ...ional Rear RS 485 Communication Breaker Monitoring Trip Circuit Monitoring 27 TN 81A 46 49 21 32 50 40 78 60FL 51V 50 27 27 64F 64B 59X 64S 59N CT Residual Note 5 VT Note 1 VT Note 1 67N Polarization Software Select 3VO Calculated VX VN Note 2 CT Note 3 Note 4 59D Line Side Voltage Software Select VX 3VO Calculated CT Neutral Note 5 M Metering M Metering Rear RS232 Communication Event Log NOTES 1 ...

Page 24: ...3 ACTUAL 0 40 1 02 X 0 27 0 68 Slot 4X 10 20 25 91 19 00 48 26 18 31 46 51 0 35 0 89 1 48 3 76 2 25 5 72 NOTE Dimensions in brackets are in centimeters NOTES 1 Dimensions in brackets are in centimeters 2 See Instruction Book Chapter 5 for Mounting and Cutout information Figure 6 Horizontal Unit Dimensions Without Expanded I O H1 ...

Page 25: ... TIME OSC TRIG SYNC BRKR CLOSED OK RELAY TARGET RESET PS 2 PS 1 17 5 44 45 ACTUAL 5 65 14 40 Recommended cutout when relay is not used as standard rack mount and is panel cut out mounted 19 00 48 26 17 50 44 45 0 35 0 89 0 03 0 076 NOTE Dimensions in brackets are in centimeters NOTES 1 Dimensions in brackets are in centimeters 2 See Instruction Book Chapter 5 for Mounting and Cutout information Fi...

Page 26: ...K W IT H E L ECT R IC C O INC 6 19 0 118 t h AV E NO L A RG O F L 3 3 7 7 3 RS 2 3 2 1 3 5 4 2 6 7 2 7 5 4 4 2 3 2 6 14 W A RNING C O NT A C T W IT H T E RM INA L S M A Y C A US E E L E C T RIC S HO C K F O R C O NT A C T RA T ING S S E E INS T RUC T IO N M A NUA L 10 8 9 7 13 12 11 16 18 17 15 22 20 19 21 23 63 60 62 61 5 5 2 6 8 6 5 18 6 5 8 5 2 1 8 5 6 F3 F4 3 A MP 3A B 1 PS 2 PS 1 PS2 F1 F2 5 ...

Page 27: ...ction Relay 0 35 0 89 18 31 46 51 NOTES 1 Dimensions in brackets are in centimeters 2 See Instruction Book Chapter 5 for Mounting and Cutout information Figure 9 Horizontal and Vertical Unit Dimensions With Expanded I O H5 and H6 ...

Page 28: ... 13 B I A RT N 11 IN 12 S E L F 46 65 45 X V 64 44 43 41 42 40 39 I 52b 10 9 N V 7 5 6 IN 6 8 I N P U T S V C V A C C COM 3 RS485 4 3 2 V V B AUX V B A V A 48 250 125 1 24 B 37 36 35 38 IN 5 IN 4 IN 3 IN 2 IN 1 T E S T 3AMP 3AB VOLTAGE RATED 60 140VAC 50 60Hz 5 A NO M 1A N O M RATED CURRENT I I a N LA RGO FL 3 3 77 3 6 19 0 118 t h AVE NO B E C K W IT H E L E C T R IC C O INC 72 7 5 4 4 2 3 2 6 OU...

Page 29: ...1 0 Hz based on the rotor capacitance in order to improve accuracy 4 The signal rise time is analyzed to determine if shaft brushes are lifting or open 64B 5 May also be applied on generators with brushless excitation with a grounding brush and pilot ground fault detection brush Function Specification Field Exciter Supply Voltage Rating Terminal 3 to 2 60 to 1200 V dc continuous 1500 V dc 1 minute...

Page 30: ...V pk pk applied between each independent circuit 1989 5 000 V pk Fast Transient applied to each independent circuit to earth 5 000 V pk Fast Transient applied between each independent circuit ANSI IEEE 2 500 V pk pk oscillatory applied to each independent circuit to earth C37 90 1 2 500 V pk pk applied between each independent circuit 2002 4 000 V pk Fast Transient applied to each independent circ...

Page 31: ...ES MOUNTING PATTERN WITHOUT TABS Field Ground Coupler 4 72 11 99 7 87 19 99 2 96 REF 7 52 3 54 9 0 NOTE Dimensions in brackets are in centimeters 7 40 18 79 9 06 23 01 3 54 9 0 18 DIA 0 46 4 X M 3921 Figure 12 M 3921 Field Ground Coupler Mounting Dimensions ...

Page 32: ... grounding transformer through a band pass filter The band pass filter passes the 20 Hz signal and rejects out of band signals The output of the 20 Hz band pass filter is connected to the VN input of the M 3425A relay through a suitable voltage divider that limits the M 3425A to O 200 V ac the voltage generator may be bypassed if the expected 50 60 Hz voltage during a phase to ground fault of the ...

Page 33: ...ng that will result in 50 60 Hz phase ground fault voltages 200 V ac use the High Voltage connection for the 59N Function If 20 Hz Signal Generator is prior to Model EE a step down transformer is necessary for voltages 120 VAC Connection terminals for Model A00 EE shown 12 1 2 3 6 8 7 9 5 1A2 _ Supply Voltage DC 100 230 VAC UH L1 UH L2 L3 External Block Error Device Operative L 4 1A1 1A3 1A4 Figur...

Page 34: ...ld Adjustable voltage range with jumper For control voltages 24 V 48 V 60 V DC 19 V Uhigh P DC 19 V Ulow O DC 10 V For control voltages 110 V 125 V 220 V 250 V DC 88 V Uhigh P DC 88 V Ulow O DC 44 V Permissible voltage continuous 300 V dc Life Contact Connections 5 7 and 9 Switching capacity MAKE 30W VA BREAK 20 VA 30 W resistance load 25 W L R O 50 ms Switching voltage DC 24 V to DC 250 V AC 24 t...

Page 35: ...3425A Generator Protection Relay NOTE Detailed Mounting information is contained in the M 3425A Instruction Book Chapter 5 Installation Section 5 6 Figure 14 20Hz Signal Generator Dimensions Dimensions in mm ...

Page 36: ... Divider Circuit Connections 1A1 1A4 Permissible voltage continuous 55 V ac Permissible voltage for O30 s 50 V ac Test Voltage 2 8 kV dc Permissible Ambient Temperatures with RL 5 Ω burden O400 C or O 1040 F with RL 5 Ω burden O550 C or O 1310 F NOTE The device may produce up to 75 W power losses during service In order to prevent heat pockets the dissipation of the losses must not be restricted T...

Page 37: ...Protection Relay Figure 16 20 Hz Measuring Current Transformer 400 5 A CT NOTE Detailed Mounting information is contained in the M 3425A Instruction Book Chapter 5 Installation Section 5 Figure 15 Band pass Filter Dimensions ...

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Page 40: ... equipment in a test area the Protective Earth Terminal must be attached to a separate ground securely by use of a tool since it is not grounded by external connectors Do NOT operate in an explosive environment Do not operate this equipment in the presence of flammable or explosive gases or fumes To do so would risk a possible fire or explosion Keep away from live circuits Operating personnel must...

Page 41: ...atures are maintained Always replace components with those of equal or better quality as shown in the Parts List of the Instruction Book Avoid static charge This unit contains MOS circuitry which can be damaged by improper test or rework procedures Care should be taken to avoid static charge on work surfaces and service personnel Use caution when measuring resistances Any attempt to measure resist...

Page 42: ...version D 0150 V01 00 34andlater 59N 20 Hz Injection Mode Page 2 58 IEEEcurvesfor51N 51V and67Nfunctions AppendixD SequenceofEventsRecorder Page4 18 Dropout ResetTimeDelayaddedtoIPSlogic Page2 91 ResponseTimeDelayforCommunications Page4 3 25 Function does not produce a target Page 2 21 ...

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Page 44: ...lanking 2 3 Arrow Pushbuttons 2 3 EXIT Pushbutton 2 3 ENTER Pushbutton 2 3 RELAY OK LED 2 3 Time Sync LED 2 3 Breaker Closed BRKR CLOSED LED 2 3 Diagnostic LED DIAG 2 3 Oscillograph Triggered LED 2 3 Power Supply PS1 and PS2 LEDs 2 4 Target LED 2 4 M 3925A Target Module and Target Reset Pushbutton 2 4 2 2 Operation HMI PC 2 5 System Priority 2 5 HMI Operation Overview 2 5 Default Message Screens 2...

Page 45: ...From IPScom 2 29 Tools Counters and Error Codes 2 29 Relay Sequence of Events Retrieve 2 30 Time and Date Stamping 2 30 Relay Sequence of Events View 2 31 Relay Sequence of Events Clear 2 31 Chapter 3 IPScom 3 1 IPScom Functional Description 3 1 IPScom Main Screen Menu Bar 3 1 Shortcut Command Buttons 3 1 IPScom Main Screen Status Line 3 1 File Menu 3 4 File New Command 3 4 File Save and Save As C...

Page 46: ...l Number 3 32 System OK LED 3 32 Tools Relay Communication 3 33 Tools Output Test 3 33 Tools Counters and Error Codes 3 34 Tools Firmware Update 3 35 Tools Calibration Data 3 35 Window Menu 3 35 Help Menu 3 35 Chapter 4 System Setup and Setpoints 4 1 Unit Setup 4 1 Direct Connection 4 14 COM Port Security 4 17 Disabling COM Ports 4 17 IPScom Ethernet Port Setup with DHCP 4 18 HMI Ethernet Port Set...

Page 47: ...Voltage Control Restraint 4 81 59 Phase Overvoltage 4 83 59D Third Harmonic Voltage Differential Ratio 4 85 59N Overvoltage Neutral Circuit or Zero Sequence 4 87 59X Multipurpose Overvoltage Turn to Turn Stator Fault Protection or Bus Ground Protection 4 89 60FL VT Fuse Loss 4 91 Internal Fuse Loss Detection Logic 4 91 External Fuse Loss Function 4 91 60FL VT Fuse Loss Alarm Function 4 91 64B F Fi...

Page 48: ...s Software Installation 5 30 IPScom Installation and Setup 5 30 Hardware Requirements 5 30 Installing IPScom 5 30 5 8 Activating Initial Local Communications 5 30 5 9 Initial Setup Procedure 5 31 Chapter 6 Testing 6 1 Equipment Test Setup 6 2 Equipment Required 6 2 Setup 6 2 6 2 Functional Test Procedures 6 6 6 3 Diagnostic Test Procedures 6 68 Overview 6 68 Entering Relay Diagnostic Mode 6 68 Out...

Page 49: ...rgets Screen 2 15 2 7 Clear Targets Confirmation Dialog Screen 2 16 2 8 Clear Targets Dialog Screen 2 16 2 9 Retrieve Oscillograph Record Dialog Screen 2 19 2 10 Oscillograph Record Download Dialog Screen 2 19 2 11 Oscillograph Download Successful Confirmation Screen 2 19 2 12 Trigger Oscillograph Confirmation Screen 2 20 2 13 Oscillograph Successfully Triggered Dialog Screen 2 20 2 14 Clear Oscil...

Page 50: ...en 3 23 3 25 I O Map Screen 3 24 3 26 Display All Setpoints Screen 3 25 3 27 View Targets Dialog Screen 3 26 3 28 Sequence of Events Recorder Setup Screen 3 27 3 29 Sequence of Events Recorder Retrieve Screen 3 27 3 30 View Sequence of Events Recorder Screen 3 28 3 31 Setup Oscillograph Recorder Dialog Screen 3 29 3 32 Oscillograph Recorder Retrieve Dialog Screen 3 29 3 33 Profile Switching Method...

Page 51: ... Diagram 4 36 4 22 Function 59X Turn to Turn Fault Protection Three Line Connection Diagram 4 37 4 23 Function 67N 59D 59X Bus Ground Three Line Connection Diagram 4 38 4 24 Relay Setpoints Dialog Screen 4 42 4 25 Negative Sequence Overcurrent Setpoint Dialog Screen 4 43 4 26 All Setpoints Table Dialog Screen 4 44 4 28 Phase Distance 21 Coverage 4 48 4 29 Phase Distance 21 Function Applied for Sys...

Page 52: ...82 4 62 Phase Overvoltage 59 Setpoint Ranges 4 84 4 63 Third Harmonic Voltage Differential Ratio Scheme for Generator Ground Fault Protection 4 86 4 64 Third Harmonic Voltage Differential 59D Setpoint Ranges 4 86 4 65 Overvoltage Neutral Circuit or Zero Sequence 59N Setpoint Ranges 4 88 4 66 Turn to Turn Stator Winding Fault Protection 4 90 4 67 59X Multi purpose Overvoltage Setpoint Ranges 4 90 4...

Page 53: ... H2 5 3 5 3 M 3425A Mounting Dimensions Horizontal and Vertical Chassis With Expanded I O 5 4 5 4 M 3425A Panel Mount Cutout Dimensions 5 5 5 5 Mounting Dimensions for GE L 2 Cabinet H3 and H4 5 6 5 6 H5 Mounting Dimensions 5 7 5 7 Optional Dual Power Supply 5 8 5 8 Expanded I O Power Supply 5 8 5 9 External Connections 5 9 5 10 Three Line Connection Diagram 5 10 5 11 Function 25 Sync Check Three ...

Page 54: ... System Setpoints and Settings page 1 of 38 A 7 Appendix B B 1 Null Modem Cable M 0423 B 2 B 2 RS 232 Fiber Optic Network B 3 B 3 RS 485 Network B 4 B 4 COM2 Pinout for Demodulated TTL Level Signal B 4 Appendix D D 1 Volts Hz 24 Inverse Time Curve Family 1 Inverse Square D 2 D 2 Volts Hz 24 Inverse Time Family Curve 2 D 3 D 3 Volts Hz 24IT Inverse Time Curve Family 3 D 4 D 4 Volts Hz 24IT Inverse ...

Page 55: ...History and Oscillograph Explorer F 23 F 13 Communication 1 of 2 F 24 F 14 Setup Unit 1 of 2 F 26 F 15 Diagnostic Mode 1 of 2 F 28 Tables Page Chapter 1 1 1 M 3425A Device Functions 1 3 Chapter 2 2 1 Recorder Partitions 2 16 Chapter 4 4 1 Dead Sync Time 4 15 4 2 Recorder Partitions 4 24 4 3 Input Activated Profile Logic 4 28 4 4 Available Functions 4 41 4 5 Impedance Calculation 4 49 4 6 Voltage C...

Page 56: ...e A 2 Appendix B B 1 Communication Port Signals B 2 Appendix C C 1 Self Test Error Codes C 1 C 2 IPScom Error Messages C 2 Appendix D D 1A M 3425A Inverse Time Overcurrent Relay Characteristic Curves D 6 Appendix H H 1 Declaration of Conformity H 2 800 3425A IB 09 07 12 1998 Beckwith Electric Co All Rights Reserved Printed in U S A 9 21 01 ...

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Page 58: ...4 Chapter 4 System Setup and Setpoints Chapter Four is designed for the person s responsible for the direct setting and configuration of the system It describes the procedures for entering all required data into the M 3425A Included in this chapter are functional and connection diagrams for a typical application for the system and describes the configuration process for the unit choosing active fu...

Page 59: ...onformity required by ISO IEC 17050 1 2004 1 2 M 3425A Generator Protection Relay The M 3425A Generator Protection Relay is a microprocessor based unit that uses digital signal processing technology to provide up to thirty four protective relaying functions for generator protection The relay can protect a generator from internal winding faults system faults and other abnormal conditions The availa...

Page 60: ...f function operation for the most recent event The M 3425A retains up to 416 cycles of oscillograph waveform data assignable to up to 24 events with selectable post trigger delay This data can be downloaded and analyzed using the M 3801D IPSplot PLUS Oscillograph Analysis Software The unit is powered from a wide range switch mode power supply An optional redundant power supply is available for uni...

Page 61: ...vated as RS 232 or COM3 or when purchased the ethernet connection RJ45 activated Detailed information regarding the use of the relay communications ports is provided in Appendix B Communications as well as Chapter 3 IPScom S 3400 IPScom Communications Software Each M 3425A unit includes the S 3400 IPScom Communications Software The IPScom communications software runs on an IBM PC compatible comput...

Page 62: ... 2000 or later to enable the plotting and printing of waveform data downloaded from the M 3425A Generator Protection Relay M 3933 M 0423 Serial Communications Cable The M 3933 cable is a 10 foot straight through RS 232 modem cable for use between the relay s rear panel COM2 port and a modem This cable has a DB25 25 pin connector modem and a DB9 9 pin at the M 3425A end The M 0423 cable is a 10 foo...

Page 63: ...M 3425A Instruction Book 1 6 This Page Left Intentionally Blank ...

Page 64: ...and Indicators Status Monitoring Voltage Current Frequency and Volts Hz Monitoring Input Output Status Timer Status Counter Status Input Output Alarm Time of Last Power Up Error Codes Checksum Target History View Target History Clear Target History Oscillograph Recorder View Recorder Status Retrieve Records Trigger Oscillograph Clear Records Miscellaneous Software Version Serial Number Alter User ...

Page 65: ...s 11 VIEW TARGET HISTORY 13 Time and Date Stamping 13 View Target History From IPScom 15 View Targets 15 Clear Targets 16 Oscillograph Recorder Data 16 Oscillograph Recorder From IPScom 19 Retrieve Oscillograph Records 19 Trigger Oscillograph 20 Clear Oscillograph Records 20 Software Version Relay Front Panel only 21 Serial Number Relay Front Panel only 21 Alter Access Codes From Relay Front Panel...

Page 66: ...ues the speed of increment or decrement is increased If the up or down arrow pushbutton is held in the depressed position when adjusting numerical values the speed of the increment or decrement is increased after a small delay EXIT Pushbutton The EXIT pushbutton is used to exit from a displayed screen and move up the menu tree Any changed setpoint in the displayed screen will not be saved if the s...

Page 67: ...ed and the operator presses the TARGET RESET pushbutton Detailed information about the cause of the last 8 operations is retained in the unit s memory for access through the alphanumeric display from the VIEW TARGET HISTORY menu M 3925A Target Module and Target Reset Push button For units equipped with the optional M 3925A Target Module additional targeting information is available The Target modu...

Page 68: ... is initiated Figure 2 2 Default Message Screens When power is applied to the unit the relay performs a number of self tests to ensure that it is operating correctly During the self tests the screen displays an x for each test successfully executed If all self tests are executed successfully the relay will briefly display the word PASS and then a series of status screens that include Model Number ...

Page 69: ...epending on the access code each level holds users have varying levels of access to the relay functions Level 3 Access provides access to all M 3425A configuration functions and settings Level 2 Access provides access to read change setpoints monitor status and view target history Level 1 Access provides access to read setpoints monitor status and view target history Each access code is a user def...

Page 70: ... CONFIG sys stat Voltage Relay Current Relay Frequency Relay Volts per Hertz Relay Power Relay Loss of Field Relay V T Fuse Loss Relay Phase Distance Relay Field Gnd Relay Stator Gnd Relay Sync Check Relay Breaker Mon Relay Trip Ckt Mon Relay IPSLogic Relay SETUP SYSTEM config SYS stat Input Activated Profiles Active Setpoint Profile Copy Active Profile Nominal Voltage Nominal Current V T Configur...

Page 71: ... and continue to the next menu category press the EXIT pushbutton Status Monitoring From Relay Front Panel The menu categories for monitored values are Voltage Status phase voltages neutral voltage positive sequence voltage negative sequence voltage zero sequence voltage third harmonic neutral voltage field ground measurement circuit stator low frequency injection voltage Current Status phase curr...

Page 72: ...hich includes the following PRIMARY parameters Voltage V VAB VBC VCA Positive Sequence Negative Sequence Zero Sequence Neutral VX 3rd Harmonic VN 3rd Harmonic VX Frequency Hz V Hz ROCOF Hz s Currents A Phase A Phase B Phase C Positive Sequence Negative Sequence Zero Sequence Phase a Phase b Phase c Neutral Power Real W Reactive Var Apparent Va Power Factor Also included on the Primary Metering Sta...

Page 73: ...M 3425A Instruction Book 2 10 Path Monitor Primary Metering Status Figure 2 4 Primary Metering Status Screen ...

Page 74: ...quence Zero Sequence VX Frequency Hz V Hz ROCOF Hz s Currents Phase A Phase B Phase C Neutral Positive Sequence Negative Sequence Zero Sequence 49 1 49 2 Phase a Phase b Phase c I diff G A a diff B b diff C c diff Low Frequency Injection VN V IN mA Real mA 3rd Harmonic VN V VX V VX VN Power P U Real Reactive Apparent Miscellaneous Power Factor Brush V mV Field Insulation Ohm Impedance AB R AB X BC...

Page 75: ...M 3425A Instruction Book 2 12 Path Monitor Secondary Metering Status Figure 2 5 Secondary Metering Status Screen ...

Page 76: ...LED will light indicating a recent event If the optional M 3925A Target Module is present the corresponding function LED will be lit If the optional M 3931 HMI module is available a series of screens will be presented describing the most recent operation This information is also available remotely by using the IPScom Communication Software To access the VIEW TARGET HISTORY feature proceed as follo...

Page 77: ...RGET 1 CURRENT STATUS TARGET 1 a 0 02 b 0 03 c 0 04 This screen displays the phase current at the time the target operated TARGET 1 N 0 50 AMPS This screen displays the neutral current at the time the target operated 8 To exit press the EXIT pushbutton The display will return to the following VIEW TARGET HISTORY TRGT clear To access the CLEAR TARGET HISTORY feature proceed as follows 1 Press the E...

Page 78: ...shbutton Path Relay Targets View Figure 2 6 View Targets Screen View Target History From IPScom View Targets To View Targets select Relay Targets View IPScom will display the View Targets screen Figure 2 6 The View Targets screen includes the following target information Target Number Target Date Time Phase a b c and Neutral Currents Active Functions Function Status Picked up Operated Active Input...

Page 79: ...uffer memory The recorder s memory may be partitioned into 1 to 16 partitions When triggered the time stamp is recorded and the recorder continues recording for a user defined period The snapshot of the waveform is stored in memory for later retrieval using IPScom Communications Software The OSCTRIG LED on the front panel will indicate a recorder operation data is available for downloading Trigger...

Page 80: ...tive then the following will be displayed VOLTAGE RELAY VOLT curr freq v hz V 4 Press the Right arrow pushbutton until the following is displayed OSCILLOGRAPH RECORDER W targets OSC_REC comm V 5 Press the ENTER pushbutton the following will be displayed VIEW RECORDER STATUS STAT clear setup 6 Press ENTER The HMI will cycle through and display the following for each active record RECORD 1 ACTIVE dd...

Page 81: ...stat CLEAR setup To access the Oscillograph Recorder CLEAR RECORDS feature proceed as follows 1 Press the ENTER pushbutton 2 If Level Access is active the following is displayed ENTER ACCESS CODE 0 a Input the required Access Code then press ENTER b If the proper Access Code has been entered the HMI will return LEVEL 1 2 or 3 Access Granted VOLTAGE RELAY VOLT curr freq v hz V c Go to Step 4 3 If L...

Page 82: ...ed File Format then select Retrieve IPScom will display the Save As dialog screen 4 Input the desired File Name and location then select Save IPScom will display the Download Status screen Figure 2 10 Figure 2 10 Oscillograph Record Download Dialog Screen 5 Upon completion of the oscillograph file download IPScom will display the Download Successful Confirmation screen Figure 2 11 Figure 2 11 Osci...

Page 83: ...re 2 13 Oscillograph Successfully Triggered Dialog Screen 3 Select OK IPScom will return to the Main screen Clear Oscillograph Records To Clear Oscillograph Records perform the following 1 Select Relay Oscillograph Clear IPScom will display the Clear Oscillograph Records confirmation screen Figure 2 14 Figure 2 14 Clear Oscillograph Records Confirmation Screen 2 Select Yes IPScom will display the ...

Page 84: ...ss the ENTER pushbutton the following will be displayed SOFTWARE VERSION D 0150VXX YY ZZ AAAA 7 To exit press the EXIT pushbutton Serial Number Relay Front Panel only To determine the serial number of the relay proceed as follows 1 Press the ENTER pushbutton 2 If Level Access is active the following is displayed ENTER ACCESS CODE 0 a Input the required Access Code then press ENTER b If the proper ...

Page 85: ...been entered the HMI will return LEVEL 1 2 or 3 Access Granted VOLTAGE RELAY VOLT curr freq v hz c Go to step 4 3 If Level Access is not active then the following is displayed VOLTAGE RELAY VOLT curr freq v hz V 4 Press the Right arrow pushbutton until the following is displayed SETUP UNIT SETUP exit 5 Press the ENTER pushbutton the following will be displayed SOFTWARE VERSION VERS sn access numbe...

Page 86: ...en input then press ENTER The following will be displayed ENTER ACCESS CODE LEVEL 1 level 2 level 3 10 To set User Access Code Level 2 press the RIGHT arrow pushbutton to select LEVEL 2 then press ENTER the following will be displayed LEVEL 2 9999 11 Repeat Step 9 to enter the desired Level 2 User Access Code 12 To set User Access Code Level 3 press the RIGHT arrow pushbutton to select LEVEL 3 the...

Page 87: ... Comm Access Code Dialog Screen 2 EnterthedesiredNewCommAccessCode 1 9999 then re enter confirmation the New Access Code 3 Select Save IPScom will display a Access Code change Confirmation Screen Figure 2 17 Figure 2 17 Access Code Change Confirmation Screen 4 Select Yes IPScom will display an Access Code Was Changed Successfully Confirmation Screen Figure 2 18 Figure 2 18 Access Code Changed Conf...

Page 88: ...enus The device is shipped from the factory with the access code feature disabled User Access Codes To change the relay User Access Codes perform the following NOTE Communication must be established with the target relay for this procedure 1 From the IPScom Main Screen menu select Tools Security Change User Access Code IPScom will display the Access Level Code dialog screen Figure 2 19 Figure 2 19...

Page 89: ...Code then press ENTER b If the proper Access Code has been entered the HMI will return LEVEL 1 2 or 3 Access Granted VOLTAGE RELAY VOLT curr freq v hz c Go to Step 4 3 If Level Access is not active then the following is displayed VOLTAGE RELAY VOLT curr freq v hz V 4 Press the Right arrow pushbutton until the following is displayed SETUP UNIT SETUP 5 Press ENTER the following will be displayed SOF...

Page 90: ...p 4 3 If Level Access is not active then the following is displayed VOLTAGE RELAY VOLT curr freq v hz 4 Press the Right arrow pushbutton until the following is displayed SETUP UNIT SETUP 5 Press ENTER the following will be displayed SOFTWARE VERSION VERS sn access number V 6 Press the Right arrow pushbutton until the following is displayed CLEAR OUTPUT COUNTERS logo1 logo2 out ALRM V 7 Press ENTER...

Page 91: ... Go to Step 4 3 If Level Access is not active then the following is displayed VOLTAGE RELAY VOLT curr freq v hz 4 Press the Right arrow pushbutton until the following is displayed SETUP UNIT SETUP 5 Press ENTER the following will be displayed SOFTWARE VERSION VERS sn access number V 6 Press the Right arrow pushbutton until the following is displayed CLEAR ERROR CODES time ERROR eth_ver V 7 Press E...

Page 92: ...ion must be established with the target relay for this procedure 1 From the IPScom Main Screen menu bar select Tools Counters and Error Codes IPScom will display the Counters and Error Codes dialog screen Figure 2 21 2 Select the desired Error Code Alarm Counter Power Loss Counter to be reset then select OK IPScom will return to the Main Menu Figure 2 21 Counters and Error Codes Dialog Screen ...

Page 93: ... Set Date Time command allows the user to manually set the unit s clock To download available Sequence of Events perform the following 1 From the IPScom Main Screen menu select Relay Sequence of Events Retrieve IPScom will display the Sequence of Events Recorder Download screen Figure 2 22 and indicate the number of Sequence of Events Recorder Events being downloaded Figure 2 22 Sequence of Events...

Page 94: ...xtension 3 Select the location of the evt files then select the file to be viewed 4 Select Open IPScom will Open the target file in theView Sequence of Events Record screen Figure 2 23 Relay Sequence of Events Clear The Clear feature clears all Sequence of Events Records stored on the relay To Clear all Sequence of Events Records perform the following 1 From the IPScom Main Screen menu select Rela...

Page 95: ...M 3425A Instruction Book 2 32 This Page Left Intentionally Blank ...

Page 96: ... Desktop will open the program and display the IPScom Main Screen Figure 3 2 Figure 3 1 IPScom Program Icon IPScom Main Screen Menu Bar The IPScom Main Screen Menu Bar includes when the program is initially opened the File Connect and Help menu selections This menu bar includes the additional selections Communication Monitor System Tools and Windows when IPScom is in either the file mode or has op...

Page 97: ...M 3425A Instruction Book 3 2 Figure 3 2 IPScom Main Screen ...

Page 98: ...tive Profile Download from Relay Upload to Relay Tools Security User Information Relay Communication Output Test Counter Error Codes Firmware Update Calibration Data Change Comm Access Code Change User Access Code Change Communication Address Setup Comm Port Setup Ethernet Retrieve Restore Connect Communication Connect Communication Disconnect Open Terminal Window Serial Port TCP IP Modem Windows ...

Page 99: ...o update the PC s data file with the relay data This file now contains the proper system type information eliminating the need to set the information manually File Close Command Closes the open file without saving File Exit Command The Exit command quits the IPScom program File Menu Initial File Menu File Menu Dropdown When Connected and File Mode The File menu enables the user to create a New dat...

Page 100: ... for Ethernet communication Selecting Modem displays a modem Dialog screen Figure 3 7 to establish contact with remote locations The Modem Dialog screen also includes a Bring up terminal window after dialing option When selected IPScom will open a terminal window Figure 3 8 to allow modem commands to be sent to the target modem When communicating by way of a fiber optic loop network echo cancellin...

Page 101: ...M 3425A Instruction Book 3 6 Communication Open Terminal Window Opens the IPScom Terminal Window Figure 3 8 Figure 3 7 IPScom Modem Communication Dialog Screen Figure 3 8 Terminal Window ...

Page 102: ...tatus The Primary Metering screen Figure 3 9 allows the user to review the following PRIMARY parameters Voltage V VAB VBC VCA Positive Sequence Negative Sequence Zero Sequence Neutral VX 3rd Harmonic VN 3rd Harmonic VX Frequency Hz V Hz ROCOF Hz s Currents A Phase A Phase B Phase C Positive Sequence Negative Sequence Zero Sequence Phase a Phase b Phase c Neutral Power Real W Reactive Var Apparent ...

Page 103: ...M 3425A Instruction Book 3 8 Path Monitor Primary Metering and Status Figure 3 9 Primary Metering Status Screen ...

Page 104: ...ase C Neutral Positive Sequence Negative Sequence Zero Sequence 49 1 49 2 Phase a Phase b Phase c I diff G A a diff B b diff C c diff Low Frequency Injection VN V IN mA Real mA 3rd Harmonic VN V VX V VX VN Power Real Reactive Apparent Miscellaneous Power Factor Brush V mV Field Insulation Ohm Impedance AB R AB X BC R BC X CA R CA X Positive Sequence R Positive Sequence X Also included on the Prima...

Page 105: ...M 3425A Instruction Book 3 10 Path Monitor Secondary Metering and Status Figure 3 10 Secondary Metering Status Screen ...

Page 106: ...ple frequency bands the lower limit of the previous band becomes the upper limit for the next band i e Low Band 2 is the upper limit for Band 3 and so forth Frequency bands must be used in sequential order 1 to 6 Band 1 must be enabled to use Bands 2 6 If any band is disabled all following bands are disabled When frequency is within an enabled band limit accumulation time starts there is an intern...

Page 107: ...menu that allows the user to select deselect sources to be displayed and Freeze capability to freeze the data displayed on the Phasor Diagram Path Monitor Phasor Diagram NOTE When connections specifying delta connected CTs are used Functions 87T and 87H use the Phasor Diagram values currents actually entering the relay and not the calculated values displayed on the Secondary Metering and status sc...

Page 108: ...phases See Function 21 Phase Distance in Chapter 4 for additional information Path Monitor Phase Distance Diagram NOTE When connections specifying delta connected CTs are used Functions 87T and 87H use the Phasor Diagram values currents actually entering the relay and not the calculated values displayed on the Secondary Metering and status screen Figure 3 13 Phase Distance Diagram ...

Page 109: ...of Field Diagram Figure 3 14 displays a graphic representation of Loss of settings and also displays the Positive Sequence Impedance See Function 40 Loss of Field in Chapter 4 for additional information Path Monitor Loss of Field Figure 3 14 Loss of Field Diagram ...

Page 110: ...p The Out of Step graphic representation provides the user with the ability to evaluate Out of Step settings See Function 78 Out of Step in Chapter 4 for additional information Path Monitor Out of Step Figure 3 15 Out of Step Diagram ...

Page 111: ...difference between the measured quantities See Function 25 Sync Check in Chapter 4 for additional information Path Monitor Sync Scope Figure 3 16 Sync Scope sCAUTION The M 3425A Sync Scope should not be used to determine phase conditions for manual synchronizing because of possible communications time delay ...

Page 112: ...plays the status of various functions with a red circle indicating functions that have tripped and a green circle for those functions that have picked up and are timing Also displayed are Active Inputs and Outputs Path Monitor Function Status Figure 3 17 Function Status ...

Page 113: ...y allows the user to display a graphical representation of the 87 programmable Dual Slope Percentage Restraint Characteristic See Function 87 Phase Differential Current in Chapter 4 for additional information Path Monitor 87Dual Slope Figure 3 18 87 Function Dual Slope Display ...

Page 114: ...en parameter designates the operated state established by an opening rather than a closing external contact COMMAND BUTTONS Save When connected to a relay sends the currently displayed information to the unit Otherwise saves the currently displayed information to file and returns to the IPScom Main screen Cancel Returns to the IPScom Main screen any changes to the displayed information are lost Re...

Page 115: ... 3425A Instruction Book 3 20 Path Relay Setup Setup System Figure 3 20 Setup System System I O Setup Dialog Screen Path Relay Setup Setup System Figure 3 21 Setup System Output Seal in Time Dialog Screen ...

Page 116: ...ssed Selecting a Function Setting button will display the corresponding function dialog screen See Figure 3 23 as an example Figure 3 22 Relay Setpoints Dialog Screen COMMAND BUTTONS Display All Setpoints Opens the All Setpoints Table dialog screen for the specified range of functions Display I O Map Opens the I O Map dialog screen Figure 3 25 OK Exits the screen and returns to the IPScom main scr...

Page 117: ...cted to a relay sends the currently displayed information to the unit Otherwise saves the currently displayed information and returns to the System Setpoints screen or All Setpoints Table Cancel Returns to the System Setpoints screen or All Setpoints Table any changes to the displayed information are lost ...

Page 118: ...or not There is a greenTime Sync LED mimic in this dialog box the LED is displayed as different shading on a monochrome monitor When this LED is green the relay is synchronized with the IRIG B signal and the Time field is grayed out indicating that this field can t be changed But the Date field can be changed by editing and selecting Save When the LED is not blue the relay is not time synchronized...

Page 119: ...ocking input configurations Both the Relay Setpoints dialog screen and the I O Map screen include the Display All Setpoints feature and Jump Command Buttons which allow the user to jump from a scrolling dialog screen to an individual relay function dialog screen and return to the scrolling dialog screen All available parameters can be reviewed or changed when jumping to a relay I O Map screen from...

Page 120: ...indow to allow scrolling through all relay setpoint and configuration values The individual Feature and Function selection buttons are described in the applicable sections The All Setpoint Table includes Jump Command Buttons which allow the user to jump from a scrolling dialog screen to an individual relay function dialog screen and return to the scrolling dialog screen All available parameters ca...

Page 121: ... date function status phase current values and IN OUT contact status at the time of trip Individually recorded events may be selected and saved to a text file or be printed out with optional added comments The Reset LED selection is similar to pressing the Target Reset button on the relay Front Panel This command resets current targets displayed on the relay This command does not reset any target ...

Page 122: ...een Figure 3 28 Function Pickup Trip and Dropout can be selected to initiate the recorder as well as Input Pickup Output Pickup Inputs Drop and Outputs Drop The Retrieve command downloads and saves the record to file Figure 3 29 The View command displays the View Sequence of Events Record screen Figure 3 30 which allows the user to open and print Sequence of Events files The Clear command clears a...

Page 123: ...M 3425A Instruction Book 3 28 Figure 3 30 View Sequence of Events Recorder Screen ...

Page 124: ... command to the relay to capture a waveform This is the same as issuing a manual oscillograph trigger Clear erases all existing records The optional M 3801D IPSplot PLUS Oscillograph Analysis Software program is required to view the downloaded oscillograph files or the files can be converted to ComTrade format See Chapter 4 System Setup and Setpoints and Chapter 2 Operation for detailed informatio...

Page 125: ...e allows the user to designate the active profile Figure 3 34 Copy Active Profile copies the active profile to one of four profiles user should allow approximately 15 seconds for copying Figure 3 35 The Profile submenu also provides the means to download and upload to the relay profiles See Chapter 4 System Setup and Setpoints for detailed information Figure 3 33 Profile Switching Method Dialog Sc...

Page 126: ...item includes the Change Comm Access Code and Change User Access Code submenus Tools Security Change Comm Access Code The Change Comm Access code selection displays the Change Comm Access Code screen Figure 3 38 which allows the user to change the Comm Access Code See Section 4 1 Unit Setup for detailed setup instructions If additional link security is desired a communication access code can be pr...

Page 127: ... is shipped from the factory with the access code feature disabled Figure 3 39 Change User Access Code Dialog Screen Tools User Information The User Information menu selection displays the User Information screen Figure 3 40 which provides the user with the ability to edit input the User Logo lines of the HMI display enter edit the User Control Number and set the operating mode of the System OK LE...

Page 128: ...led communication setup instructions Figure 3 41 Change Relay Communication Address Dialog Screen Figure 3 42 Setup Relay Comm Port Dialog Screen Figure 3 43 Setup Relay Ethernet Port Dialog Screen Tools Output Test The Output Test menu selection displays the Output Test screens Figures 3 44 and 3 45 which provides the user with the ability to test each output relay See Section 6 Testing for detai...

Page 129: ...d Error Codes screen Figure 3 46 which provides the user with the ability to view and clear system Error Codes Alarm Counters Power Loss Counter and Output Counters Also Checksums can be viewed for Calibration and Setpoints See Chapter 2 Manual Operation for detailed instructions Figure 3 46 Counters and Error Codes Dialog Screen ...

Page 130: ... The Window menu enables positioning and arrangement of IPScom windows so that there is better access to available functions This feature allows the display of several windows at the same time Clicking on an inactive yet displayed window activates that window Help Menu The Help menu provides two selections The Contents selection initiates a link to a PDF Portable Document File version of this inst...

Page 131: ...M 3425A Instruction Book 3 36 This Page Left Intentionally Blank ...

Page 132: ...ints Section which describes the enabling of functions and setpoints output contact assignments and digital input assignments The selection of the M 3425A System Setup parameters and Setpoints can be performed using either the S 3400 IPScom Communications Software or from the unit s M 3931 Front Panel Human Machine Interface HMI and will be included where applicable 4 1 Unit Setup NOTE Setup Recor...

Page 133: ...8 ETHERNET Protocols 18 IPScom Ethernet Port Setup with DHCP 18 IPScom Ethernet Port Setup without DHCP 18 HMI Ethernet Port Setup 19 Manual Configuration of Ethernet Board 20 Installing the Modems 21 Connecting the PC Modem 21 Initializing the PC Modem 22 Connecting the Local Modem to the Relay 23 Oscillograph Setup 24 IPScom Setup Oscillograph Recorder 25 HMI Setup Oscillograph Recorder 26 IPSco...

Page 134: ...age Turn to Turn Stator Fault Protection or Bus Ground Protection 89 60FL VT Fuse Loss 91 Internal Fuse Loss Detection Logic 91 External Fuse Loss Function 91 60FL VT Fuse Loss Alarm Function 91 64B F Field Ground Protection 93 64F Field Ground Detection 93 Factors Affecting 64F Performance 93 64B Brush Lift Off Detection 95 64S 100 Stator Ground Protection by Low Frequency Signal Injection 97 67N...

Page 135: ...Code Dialog Screen 2 Enter the desired New Comm Access Code 1 9999 then re enter confirmation the New Access Code 3 Select Save IPScom will display an Access Code change Confirmation Screen Figure 4 2 Figure 4 2 Access Code Change Confirmation Screen 4 Select Yes IPScom will display an AccessCodeWasChangedSuccessfully Confirmation Screen Figure 4 3 Figure 4 3 Access Code Changed Confirmation Scree...

Page 136: ...ing is displayed COMMUNICATION W targets osc_rec COMM V 5 Press ENTER the following will be displayed COM1 SETUP COM1 com2 com3 com_adr 6 Press the Right arrow pushbutton until the following is displayed COMM ACCESS CODE dly ACCSS eth eth_ip 7 Press ENTER the following will be displayed COMM ACCESS CODE 9999 8 Input the desired Comm Access Code as follows a Utilizing the Up and Down arrow pushbutt...

Page 137: ...ull access to all the relay menus The device is shipped from the factory with the access code feature disabled To setup the relay User Access Codes perform the following NOTE Communication must be established with the target relay for this procedure 1 From the IPScom Main Screen menu select Tools Security Change User Access Code IPScom will display the Access Level Code dialog screen Figure 4 4 Fi...

Page 138: ...ng will be displayed ENTER ACCESS CODE LEVEL 1 level 2 level 3 8 Press ENTER the following will be displayed LEVEL 1 9999 9 Input the desired User Access Code as follows a Utilizing the Up and Down arrow pushbuttons select the desired first digit b Press the Left arrow pushbutton once then repeat the previous step as necessary to input the desired Access Code c When the desired Access Code has bee...

Page 139: ...procedure 1 From the IPScom Main Screen menu select Tools User Information IPScom will display the User Information dialog screen Figure 4 6 Figure 4 6 User Information Dialog Screen 2 If entering editing the User Logo lines then enter the desired User Logo Lines 3 If changing the User Control Number then enter the desired User Control Number 4 If enabling disabling the System OK LED Flash operati...

Page 140: ...LINE 1 WAIT USER LOGO LINE 1 LOGO 1 logo 2 alrm 9 To enter a User Logo Line 2 press the RIGHT arrow pushbutton once the following will be displayed USER LOGO LINE 2 logo 1 LOGO 2 alrm 10 Press ENTER the following will be displayed USER LOGO LINE 2 _ M 3425A 11 Input the desired User Logo Line 2 as follows a Utilizing the Up and Down arrow pushbuttons select the desired first letter symbol digit bl...

Page 141: ...wing is displayed SETUP UNIT SETUP 5 Press ENTER the following will be displayed SOFTWARE VERSION vers sn ACCESS number V 6 Press the Right arrow pushbutton until the following is displayed USER CONTROL NUMBER vers sn access NUMBER V 7 Press ENTER the following will be displayed USER CONTROL NUMBER 1 8 Input the desired User Control Number as follows a Utilizing the Up and Down arrow pushbuttons s...

Page 142: ...arrow pushbutton until the following is displayed DIAGNOSTIC MODE W DIAG 7 Press ENTER the following warning will be displayed PROCESSOR WILL RESET ENTER KEY TO CONTINUE CAUTION Do not enter DIAGNOSTIC MODE when protected equipment is in service Entering DIAGNOSTIC MODE when protected equipment is in service removes all protective functions of the relay 8 Press ENTER the relay will reset and DIAGN...

Page 143: ...s IPScom Set Date Time To set the relay Date Time perform the following NOTE Communication must be established with the target relay for this procedure 1 From the IPScom Main Screen menu select Relay Setup Setup Date Time IPScom will display the Setup Date Time dialog screen Figure 4 7 Figure 4 7 Setup Date Time Dialog Screen 2 Enter the desired Date and or Time 3 Select SAVE IPScom will return to...

Page 144: ...d Day as follows a Utilizing the Right or Left arrow pushbuttons select the desired Day b When the desired Day has been selected then press ENTER The following will be displayed DATE TIME 01 Hour 12 Input the desired Hour as follows a Utilizing the Up and Down arrow pushbuttons select the desired first digit b Press the Left arrow pushbutton once then repeat the previous step as necessary to input...

Page 145: ... 10 foot null modem cable M 0423 is available from the factory for direct connection between a PC and the relay s front panel COM port or the rear COM2 port When fabricating communication cables every effort should be made to keep cabling as short as possible Low capacitance cable is recommended The RS 232 standard specifies a maximum cable length of 50 feet for RS 232 connections If over 50 feet ...

Page 146: ... 1 to 255 The individual addressing capability of IPScom and the relay allows multiple systems to share a direct or modem connection when connected through COM2 using a communications line splitter Figure 4 9 One such device enables 2 to 6 units to share one communications line Appendix B Figure B2 illustrates a setup of RS 232 Fiber Optic network 8 Enter the desired Dead Sync Time 2 to 3000 msec ...

Page 147: ...ginning of the Comm menu If setting up COM2 or 3 the following will be displayed COM2 DEAD SYNC TIME 50 ms 9 Input the desired Dead Sync Time as follows a Utilizing the Up and Down arrow pushbuttons select the desired first digit b Press the Left arrow pushbutton once then repeat the previous step as necessary to input the desired Dead Sync Time c When the desired Dead SyncTime has been input then...

Page 148: ...nted INIT TRANSFER INIT rmte_lcal c Go to step 4 3 If Level Access is not active then the following is displayed INIT TRANSFER INIT rmte_lcal 4 Press the Right arrow pushbutton until the following is displayed Communication stat COMM setup 5 Press ENTER the following will be displayed COM1 SETUP COM1 com2 com3 com_adr 6 Press ENTER and the following is displayed PORT ACCESS enable DISABLE 7 Press ...

Page 149: ...e the entry of the Standard Port Number MODBUS To utilize the MODBUS protocol over a TCP IP connection select the MODBUS MODBUS over TCP IP protocol The IP Address of the relay must be entered in the IPScom Communication screen Also ensure that the COM2 protocol is selected to MODBUS baud rate is set to 9600 bps 1 stop bit and no parity selected The Standard Port Number for the MODBUS over TCP IP ...

Page 150: ...sure that TCP is selected Upper Case IfTCP is not selected Upper Case then use the Right Left arrow pushbuttons to select TCP 7 Press ENTER the following will be displayed DHCP PROTOCOL DISABLE enable 8 If the network does not support the DHCP protocol then go to Manual Configuration of Ethernet Board following page to manually configure the ethernet board 9 If the DHCP Protocol is to be enabled t...

Page 151: ...rd that is installed one of the following screens will be displayed SELECT PROTOCOL modbus serconv SELECT PROTOCOL IEC 61850 12 Use the Right Left arrow pushbuttons to select the desired protocol Upper Case then press ENTER the following will be displayed ETHERNET PROTOCOL tcp PROT 13 Press EXIT the ethernet board will reconfigure and the following will be displayed CONFIGURING ETH If the ethernet...

Page 152: ... at 1200 to 9600 baud In order to use IPScom to communicate with the relay using a modem the following must be provided with the relay An external modem 1200 baud or higher capable of understanding standard AT commands Serial modem cable with 9 pin connector for the relay and the applicable connector for the modem Similarly the computer running IPScom must also have access to a compatible internal...

Page 153: ...required information in the Modem Settings section of the screen then select Connect COMMAND BUTTONS Add Allows you to review and change the user lines unit identifier phone number and communication address of a selected entry Remove Deletes a selected entry Save Saves any changes to the displayed information Connect Dials the entry selected from the directory Cancel Ends modem communication allow...

Page 154: ...dem cable to the appropriate serial communications port on both the unit and the modem 2 Connect the modem to a telephone line then energize the modem The modem attached to the relay must have the following AT command configuration E0 No Echo Q1 Don t return result code D3 On to OFF DTR hangup and reset S0 DSR always on C1 DCD ON when detected S0 2 Answer on second ring The following commands may ...

Page 155: ...iggered the time stamp is recorded and the recorder continues recording for a user defined period The snapshot of the waveform is stored in memory for later retrieval using IPScom Communications Software The OSC TRIG LED on the front panel will indicate a recorder operation data is available for downloading Trigger Inputs and Outputs The recorder can be triggered remotely through serial communicat...

Page 156: ...ns room for a finite number of cycles of recorded data Consider Table 4 2 when determining the number of Oscillograph records The number of cycles of recorded data is directly related to the number of records selected 3 Select the desired Trigger Inputs and Trigger Outputs The recorder can be triggered remotely through serial communications using IPScom or automatically using programmed status inp...

Page 157: ...arrow pushbutton until the following is displayed RECORDER SETUP stat clear SETUP 7 Press ENTER the following will be displayed RECORDER PARTITIONS 1 8 Input the desired number of Recorder Partitions 9 Press ENTER the following will be displayed TRIGGER INPUTS I6 i5 i4 i3 i2 i1 10 Press the Right or Left arrow pushbutton as necessary to select the desired Trigger Input then press ENTER the followi...

Page 158: ...ication must be established with the target relay for this procedure When not connected to the relay the Save selection does not save the Sequence of Event settings to the open file To setup the Sequence of Events Recorder perform the following 1 From the IPScom Main Screen menu select Relay Sequence of Events Setup IPScom will display the Setup Sequence of Events Recorder dialog screen Figure 4 1...

Page 159: ...from line ground voltages for all voltage sensitive functions This line gnd to line line selection should be used only for a VT line to ground nominal secondary voltage of 69V not for 120 V For this selection the nominal voltage setting entered should be line line nominal voltage which is S3 times line ground nominal voltage and voltage function pickup setpoints calculation should be made using li...

Page 160: ...S option is selected the magnitude calculation is accurate over a wide frequency range 10 to 80 Hz and the accuracy of the time delay is 20 cycles When the DFT option is selected the magnitude calculation is accurate near 50 or 60 Hz and the timer accuracy is K1 cycle When a wider frequency response is needed select RMS For generator protection applications it is recommended to use the RMS selecti...

Page 161: ...tatus input Programming uppercase see I6 causes the active or operated condition to be initiated by the external contact opening Otherwise external contact closure will activate the input NOTE Settings for expanded I O must be made through IPScom Ratio of the phase VTs Example 13 800 V 120 V 13 800 120 115 1 Ratio of the neutral VT Example 13 800 V 120 V 13 800 120 115 1 Ratio of auxiliary VT Exam...

Page 162: ...4 31 System Setup and Setpoints 4 Figure 4 15 IPScom Relay Setup System Dialog Screen ...

Page 163: ...tput contact will default to the normal mode In this mode the output contact will stay energized as long as the abnormal condition which caused it to operate persists After the abnormal condition is cleared the contact will reset after the programmed seal in time has elapsed Figure 4 17 IPScom Selection Screen for Output Seal in Time ...

Page 164: ...ar Ethernet Port Optional Rear RS 485 Communication Breaker Monitoring Trip Circuit Monitoring 67N 67N Polarization Software Select 81A 50N 50 BFN 51N 46 59X 59N 3VO Calculated VX VN 3IO IN 67N Operating Current Software Select VT Note 1 Note 3 Note 5 CT Residual Note 4 59D Line Side Voltage Software Select VX 3VO Calculated CT Neutral Notes 2 5 CT M Metering M Metering Rear RS232 Communication Ev...

Page 165: ...r RS 485 Communication Breaker Monitoring Trip Circuit Monitoring 27 TN 81A 46 49 21 32 50 40 78 60FL 51V 50 27 27 64F 64B 59X 64S 59N CT Residual Note 5 VT Note 1 VT Note 1 67N Polarization Software Select 3VO Calculated VX VN Note 2 CT Note 3 Note 4 59D Line Side Voltage Software Select VX 3VO Calculated CT Neutral Note 5 M Metering M Metering Rear RS232 Communication Event Log NOTES 1 When 25 f...

Page 166: ...c a b c a b c OR OR High Impedance Grounding 52 53 M 3425A R Low Impedance Grounding OR 50 51 48 49 46 47 M 3425A Other Relays 1 1 1 A B C Example of Control Output Connections M 3425A Power Supply 52G TRIP ALARM SELF TEST FAILURE ALARM POWER OK STATUS ALARM VT FUSE LOSS EXTERNAL INPUTS ALARM OUTPUTS CONTROL OUTPUTS TRIP OUTPUT BREAKER FAILURE INITIATE 52Ga 5 3 3 3 6 OSCILLOGRAPH RECORDER INITIATE...

Page 167: ...A VX Two VT Open Delta Connection 43 41 39 42 40 38 M 3425A OR A B C Used when Generator Side VTs are connected Line Ground Used when Generator Side VTs are connected Line Line Used for Sync Check 25 NOTE When VX is connected for Sync Check function 25 turn to turn fault protection 59X is not available Figure 4 21 Function 25 Sync Check Three Line Connection Diagram ...

Page 168: ... R R 45 44 M 3425A High Impedance Grounding OR VX used for turn to turn fault protection 59X VX NOTE When VX is connected for turn to turn faults 59X must use 3V0 for the line side voltage i e setting selection and the V T configuration must be Line to Ground The 25 function is not available Figure 4 22 Function 59X Turn to Turn Fault Protection Three Line Connection Diagram ...

Page 169: ...ral or as Residual OR R 45 44 M 3425A High Impedance Grounding 65 64 M 3425A R 59X Bus Ground 65 64 M 3425A A B C R 67N 59D Connection 53 52 M 3425A 67N Connection Residual CT Bus Section VX VX can be used for both 67N and 59D if connected in this manner NOTE When VX is connected for bus ground protection 59X 67N or 59D 25 function is not available Figure 4 23 Function 67N 59D 59X Bus Ground Three...

Page 170: ...ch the profile A Copy Profile feature is available that copies an image of the Active Profile to any one of the other three profiles This feature can speed up the configuration process Consider for example a situation where a breaker will be removed from service Two profiles will be used an In Service profile Profile 1 and an Out of Service profile Profile 2 Profile 2 will be identical to the In S...

Page 171: ...th the two following screens Thissubmenuitemassignstheblockingdesignations up to six plus fuse loss logic for the enabled function OR logic is used if more than one input is selected This submenu item assigns the output contacts up to eight for the particular relay function If no output contacts are assigned the function will not generate any output or targets even though the function is enabled N...

Page 172: ...voltage Neutral 32 Directional Power 40 Loss of Field dual zone offset mho characteristic 46 Negative Sequence Overcurrent 49 Stator Overload Protection Positive Sequence Overcurrent 50 Instantaneous Phase Overcurrent 50BF Breaker Failure 50DT Definite Time Overcurrent 50N Instantaneous Neutral Overcurrent 50 27 Inadvertent Energizing 51N Inverse Time Neutral Overcurrent 51V Inverse Time Overcurre...

Page 173: ...O Map command button displays the I O Map dialog screen Figure 4 27 which contains a chart of programmed input and output contacts in order to allow scrolling through all relay output and blocking input configurations Both dialog screens All Setpoint Table and I O Map feature hotspots which allow the user to jump from a scrolling dialog screen to an individual relay function dialog screen and retu...

Page 174: ...Configure dialog screen COMMAND BUTTONS Save When connected to a protection system sends the currently displayed information to the unit Otherwise saves the currently displayed information and returns to the Relay Setpoints All Setpoints Table or Configure dialog screen Cancel Returns the user to the Relay Setpoints All Setpoints Table or Configure dialog screen any changes to the displayed inform...

Page 175: ...window provides you with jump hotspots identified by the hand icon that take you to each relay dialog screen and the Setup Relay dialog screen Exiting any of these dialog screens will return the user to the All Setpoints Table dialog screen Print Prints the All Setpoints dialog screen Print Preview Provides a pre display of the All Setpoints dialog screen for printing ...

Page 176: ...s window provides jump hotspots identified by the hand icon that take the user to each relay dialog screen and the Setup Relay dialog screen Exiting any of these dialog screens will return the user to the I O Map screen Print Prints the All Setpoints dialog screen Print Preview Provides a pre display of the All Setpoints dialog screen for printing ...

Page 177: ...blinder function can be set with a reach and an angle as shown in Figure 4 29 When enabled this feature will block the 21 Function from misoperating during high load conditions Whenthegeneratorisconnectedtothesystemthrough a delta wye transformer proper voltages and currents equivalent to the high side of the transformer must be used in order for the relay to see correct impedances for system faul...

Page 178: ...hould be set as closely as possible to the actual impedance angle of the zone being protected When enabled the 21 Function is blocked when the impedance falls within the zone but above the R Reach and below the Load Encroachment angle NOTE The 21 2 and 3 zone settings can be set for an additional external section of protection on the system typically transmission Zone 1 distance relays plus adequa...

Page 179: ...nce the neutral side CTs are used for this function backup protection for generator Phase to Phase faults is also provided Circle Diameters Unit Transformer Transmission Line ZONE 1 ZONE 3 ZONE 2 Block Block R1 Zone 1 Load Encroachment Blinder R Reach R2 Zone 2 Load Encroachment Blinder R Reach δ1 Zone 1 Load Encroachment Blinder Angle δ2 Zone 2 Load Encroachment Blinder Angle Θ Impedance Angle Se...

Page 180: ...4 49 System Setup and Setpoints 4 Table 4 5 Impedance Calculation Figure 4 30 Phase Distance 21 Setpoint Ranges ...

Page 181: ...rves as shown in Appendix D InverseTime Curves can be matched to provide the protection The two definite time elements can be used to further shape the protection curve or provide an alarm Figure 4 31 illustrates a composite graph of generator and transformer limits a chosen inverse time curve and pickup and a definite time pickup and delay 24DT 1 PICKUP 24DT 1 DELAY Cycles 24DT 2 PICKUP 24DT 2 DE...

Page 182: ...o account If the unit should again be subjected to high V Hz before it has cooled to normal operating levels damage could be caused before theV Hz trip point is reached For this reason a linear reset characteristic adjustable to take into account the cooling rate of the unit is provided If a subsequent V Hz excursion occurs before the reset characteristic has timed out the time delay will pick up ...

Page 183: ...4 52 M 3425A Instruction Book Figure 4 32 Volts Per Hertz 24 Setpoint Ranges ...

Page 184: ...etween V1 and VX voltage signals The Phase Angle Check Delta Voltage and Delta Frequency Check all combine through an appropriate timer with the output directed to the programmed 25S output contact A logic diagram representing this logic is presented in Figure 4 33 Dead Line Dead Bus Check The Dead Volt Limit defines the Hot Dead voltage level used in Deadline Dead Bus closing schemes When the mea...

Page 185: ...E i6 i5 i4 I3 i2 i1 25D DEAD DELAY Cycles Phase angle setting Upper voltage limit for voltage acceptance Lower voltage limit for voltage acceptance Sync check time delay Delta voltage element Delta voltage setting Delta frequency element Delta frequency setting Selects the phase voltage on the generator side for SyncCheck functions A B or C for line to ground and line ground to line line and AB BC...

Page 186: ...a V AND Delta F Enabled V1pos Dead Limit Dead V1 Hot VX Enabled VX Dead Limit Dead VX Hot V1 Enabled V1pos Dead Limit VX Dead Limit VX Dead Limit Dead V1 VX Enabled V1pos Dead Limit VX Dead Limit Dead V1 Hot VX Enabled V1pos Dead Limit V1pos Dead Limit VX Dead Limit AND Dead VX Hot V1 Enabled Selected INPUT Is Activated AND User Software Setting Measured Variable Delta V and Delta F Check Logic De...

Page 187: ...4 56 M 3425A Instruction Book Figure 4 34 Sync Check 25 Setpoint Ranges ...

Page 188: ...5 27 1 PICKUP Volts 27 1 DELAY Cycles Figure 4 35 Phase Undervoltage 27 Setpoint Ranges 27 2 and 27 3 Screens are identical to 27 1 Magnitude measurement depends on the 59 27 Magnitude Select setting See Section 4 2 Setup System When the RMS calculation is selected the magnitude calculation is accurate over a wide frequency range 10 to 80 Hz and the accuracy of the time delay is 20 cycles If DFT c...

Page 189: ...ower setpoint During plant startup after the field is flashed and before the unit synchronized small current measurement errors cause the measured power to fluctuate typically 0 2 This may result in a measured power value that is negative i e 0 001 pu If the reverse power blocking is not enabled the 27TN may be momentarily unblocked resulting in a relay operation and nuisance generator trip It is ...

Page 190: ... Block Lead VAr Block Reverse Power Block Forward Power Block Low Band Forward Power Block High Band Forward Power Block Block Block Q Q Figure 4 37 27TN Blocking Regions Figure 4 38 Third Harmonic Undervoltage Neutral Circuit 27TN Setpoint Ranges ...

Page 191: ...Q VOLT BLK disable ENABLE 27TN 1 POS SEQ VOLT BLK Volts 27TN 1 FWD POWER BLK disable ENABLE 27TN 1 FWD POWER BLK PU 27TH 1 REV POWER BLK disable ENABLE 27TN 1 REV POWER BLK PU 27TN 1 LEAD VAR BLK disable ENABLE 27TN 1 LEAD VAR BLK PU 27TN 1 LAG VAR BLK disable ENABLE 27TN 1 LAG VAR BLK PU 27TN 1 LEAD PF BLK disable enable 27TN 1 LEAD PF BLK LEAD 27TN 1 LAG PF BLK disable enable 27TN 1 LAG PF BLK L...

Page 192: ...l value This is due to the fact that the trapped steam will cause the generator to supply a small amount of power even though the steam valves are closed In this case the Over Under power setting is set to Under and a positive pickup setting is chosen The relay will trip when the measured forward power is less than the pickup value The function should be blocked when the generator breaker is open ...

Page 193: ...ypical time delay settings are 20 to 30 seconds Target LED for the 32 Function elements can be individually enabled or disabled When Low Forward Power protection is desired set this to Under with a positive pickup setting The relay will trip when the real power measurement is less than or equal to the pickup setpoint If used positive direction power settings can be used for overload protection pro...

Page 194: ...4 63 System Setup and Setpoints 4 Figure 4 40 Tripping on Low Forward Power Under Power with Positive Pickup Figure 4 41 Tripping on Overpower Over Power with Positive Pickup ...

Page 195: ...425A Instruction Book Figure 4 42 Tripping on Over Reactive Power with Element 3 Over Power Positive Pickup and Directional Power Sensing Set to Reactive Figure 4 43 Directional Power 3 Phase 32 Setpoint Ranges ...

Page 196: ...ss of field functions All impedance settings are secondary relay quantities and can be derived from the following formula Z SEC ZPRI x RC RV where ZSEC secondary reflected impedance ZPRI primary impedance RC current transformer ratio and RV voltage transformer ratio The first approach is shown in Figure 4 44 Loss of Field 40 Protective Approach I Here both of the offset mho elements 1 and 2 are se...

Page 197: ... OFFSET Ohms 40 2 DELAY Cycles 40VC 2 DELAY WITH VC Cycles 40 VOLTAGE CONTROL Volts 40 DIRECTIONAL ELEMENT Degrees Zone 1 Zone 2 Voltage Control Setting N A 80 to 90 of Nominal Voltage Delay 15 Cycles 3 600 Cycles Delay with VC Disable 60 Cycles Table 4 6 Voltage Control Time Settings Figure 4 44 Loss of Field 40 Protective Approach 1 ...

Page 198: ...tpoints 4 Underexcited Directional Element Heavy Load Light Load Block Direction Trip Direction Directional Element Angle Setting Figure 4 45 Loss of Field 40 Protective Approach 2 Figure 4 46 Loss of Field 40 Setpoint Ranges ...

Page 199: ... are greater than 15 A 3 A for 1 A rated circuit The first task of setting this function is to determine the capabilities of the associated machine As established by ANSI standards the machine limits are expressed as I2 2 t K The value of K is established by the machine design and is generally provided on test sheets of the machine The relay can accommodate any generator size because of the wide r...

Page 200: ... the phase current exceeds 3X I nominal the operating times will be greater than those shown 0 24 seconds for 50 Hz units Figure 4 47 Negative Sequence Overcurrent Inverse Time Curves Figure 4 48 Negative Sequence Overcurrent 46 Setpoint Ranges ...

Page 201: ...owed continuous overload current Selects the time constant τ Selects the maximum allowed continuous overload current 49 2 Screens are identical to those for 49 1 Example If we consider that the generator was loaded with 80 of its rating power prior to overload then the current goes up to 2 0 times the maximum current IL Imax 2 0 Selecting the curve P 0 8 see Figure 2 50 we have t τ 0 1133 If τ 30 ...

Page 202: ...4 71 System Setup and Setpoints 4 Figure 4 50 49 Function Overload Curves ...

Page 203: ...4 72 M 3425A Instruction Book Figure 4 51 Stator Thermal Protection 49 Setpoint Ranges ...

Page 204: ...presented in Figures 4 52 and 4 53 The function automatically selects fundamental RMS or total RMS calculation based on the input frequency When the generator frequency is within 5 Hz from the nominal frequency it uses fundamental RMS calculation Outside of this range it uses total RMS calculation which will provide protection during offline down to a frequency of 8 Hz For providing off line prote...

Page 205: ...4 74 M 3425A Instruction Book Figure 4 52 Instantaneous Overcurrent 50 Setpoint Ranges Figure 4 53 Instantaneous Neutral Overcurrent 50N Setpoint Ranges ...

Page 206: ...ver The Generator Breaker Failure HV Breaker Flashover function 50BF is applicable when a generator breaker is present and line side generator CTs are being used The 50BF Ph phase detector element if enabled is used for breaker failure and the 50BF N if enabled provides breaker flashover protection by providing an additional breaker failure initiate which is only active when the breaker is open Fo...

Page 207: ...ashover protection is to be used with the generator breaker failure function of the relay set ENABLE enable phase element also for this application Set the neutral pickup amps Designate the status inputs which will initiate the breaker failure timer Inputs IN7 IN14 must be set using IPScom Designate the outputs that will initiate the breaker failure timer Outputs OUT9 OUT23 must be set using IPSco...

Page 208: ...ted in Figure 4 56 50DT Definite Time Overcurrent for split phase differential The Definite Time Overcurrent 50DT function can be applied in two different configurations based on the CT connections When CT configuration shown in Figure 4 18 One Line Functional Diagram is used the 50DT function is used as a definite time phase overcurrent function to provide protection for external and internal fau...

Page 209: ...ds on the system strength Typical setting is 50 70 of rated voltage in some cases it may be set as low as 20 The pickup time delay is the time for the undervoltage unit to operate to arm the protection It must coordinate with other protection for conditions which cause low voltages typically longer than 21 and 51V time delay settings The dropout time delay is the time for the unit to operate to di...

Page 210: ...4 79 System Setup and Setpoints 4 Figure 4 57 Inadvertent Energizing Function Logic Diagram Figure 4 58 Inadvertent Energizing 50 27 Setpoint Ranges ...

Page 211: ...ided by the appropriate CT ratio IR IP CT ratio Select one of the time curves shown in Appendix D Inverse Time Curves The appropriate curve in the selected family is designated here AppropriateTime Dial for coordination with downstream relay protection chosen from the time curve above 51N PICKUP Amps 51N CURVE bedefbeinvbevinv V 51N TIME DIAL 1 5 to 20 times the pickup setting An additional one cy...

Page 212: ...complete series of inverse time tripping characteristics are included The same descriptions and nomenclature which are traditionally used with electromechanical relays are used in the relay Thus user may choose from four BECO curves BEDEF BEINV BEVINV and BEEINV four IEC curves IECI IECVI IECEI and IECLT and three IEEE curves MINV VINV EINV Within each family the operator selects time dial setting...

Page 213: ...onnected Through Delta AB Wye or Delta AC Wye Transformer Current Voltage Control or Restraint Current Voltage Control or Restraint L G L L or L G to L L L G L L or L G to L L Ia VA VC S3 VAB Ia VA VAB VCA S3 Ib VB VA S3 VBC Ib VB VBC VAB S3 Ic VC VB S3 VCA Ic VC VCA VBC S3 Table 4 7 Delta Wye Transformer Voltage Current Pairs Figure 4 61 Inverse Time Overcurrent with Voltage Control Voltage Restr...

Page 214: ...ne is selected for V T Configuration V1 1 3 Vab aVbc a2 Vca V2 1 3 Vab a2 Vbc aVca Magnitude measurement depends on the 59 27 Magnitude Select setting See Section 4 2 Setup System When the RMS option is selected the magnitude calculation is accurate over a wide frequency range 10 to 80 Hz and the accuracy of the time delay is 20 cycles If DFT option is selected the magnitude calculation is accurat...

Page 215: ...4 84 M 3425A Instruction Book Figure 4 62 Phase Overvoltage 59 Setpoint Ranges ...

Page 216: ...e maximum measured Ratio of the Third Harmonic Voltages at various loading conditions of the generator Selection of VX will give better accuracy and sensitivity than 3V0 If 3V0 is selected VT configuration must be set to Line Ground If the nominal third harmonic voltage is 1 V 3V0 line side voltage selection is not recommended because noise in 3V0 and VN can cause 59D misoperation 59D Ratio Pickup...

Page 217: ...ges Where Vx 3RD is the Third Harmonic Triple Zero Sequence voltage measured at the generator terminals VN 3RD is the Third Harmonic voltage measure at the neutral Figure 4 63 Third Harmonic Voltage Differential Ratio Scheme for Generator Ground Fault Protection The ratio Pickup Vx 3rd VN 3rd 3VO 3rd VN 3rd OR ...

Page 218: ...time delay for coordination is not acceptable the coordination problem can be alleviated by grounding one of the secondary phase conductors instead of the secondary neutral When this technique is used the coordination problem still exists for ground faults on the secondary neutral conductor Thus its usefulness is limited to those applications where the exposure to ground faults on the secondary ne...

Page 219: ...4 88 M 3425A Instruction Book Figure 4 65 Overvoltage Neutral Circuit or Zero Sequence 59N Setpoint Ranges ...

Page 220: ...nstallation requires the cable from the neutral of the VT to generator neutral be insulated for the system line to ground voltage and the relay to be tuned to fundamental 60 50 Hz frequency components of the voltage since some third harmonic frequency component of the voltage will be present across the broken delta VT input Alternatively this function can be used to detect bus ground faults when c...

Page 221: ...Note Below NOTE Installation requires the cable from the neutral of the VT to generator neutral be insulated for the system line to ground voltage Figure 4 66 Turn to Turn Stator Winding Fault Protection Figure 4 67 59X Multi purpose Overvoltage Setpoint Ranges ...

Page 222: ...r defined functions The logic scheme and options are illustrated in Figure 4 68 Internal Fuse Loss Detection Logic The internal logic scheme available will detect a loss of one two and all three potentials For the loss of one or two potentials positive and negative sequence quantities are compared The presence of negative sequence voltage in the absence of negative sequence current is considered t...

Page 223: ...es logic doesn t produce an output during 3 phase fault when current decays below 1 25 IN 067 A Values in parentheses apply to a 1 A CT secondary rating External FL Function INx External Fuse Loss Function T Delay 60FL Alarm Function initiate by internal FL or Status Input Contact INx Protection Function Block Signal by INx from External FL 60FL Alarm Signal Protection Function Block Signal by Int...

Page 224: ...field winding and the ground so that the function accuracy is improved The minimum time delay should be set greater than 2 IF 1 seconds Where IF Injection frequency Ranges and increments are presented in Figure 4 71 Table 4 8 gives typical frequency settings based on the rotor capacitance The rotor capacitance can be measured with a capacitance meter by connecting the meter across the field windin...

Page 225: ... box M 2931 and then to the positive or negative field lead In some configurations the measurement brush is continuously applied In others the measurement brush is applied periodically In configurations that automatically lift the measurement brush the 64B Function must be blocked by an input to the relay to prevent an alarm when the measurement brush is lifted If the 64B Function is not desired t...

Page 226: ...should be off line and field excitation should be off during the capacitance measurement NOTE Field breaker should be closed for the capacitance measurements Field Winding to Ground Capacitance Typical Frequency Setting 1 to 2 mF 0 52 Hz 2 to 3 mF 0 49 Hz 3 to 4 mF 0 46 Hz 4 to 5 mF 0 43 Hz 5 to 6 mF 0 39 Hz 6 to 7 mF 0 35 Hz 7 to 8 mF 0 32 Hz 8 to 9 mF 0 30 Hz 9 to 10 mF 0 28 Hz 10 mF 0 26 Hz Tab...

Page 227: ...losed for the capacitance measurements 1 After installation has been completed determine the rotor capacitance as outlined for the 64F function 2 With the machine still off line apply power to the relay and set the 64B F operating frequency in accordance with the value listed in Table 4 8 Typical Frequency Settings 3 Introduce a brush open condition by disconnecting the rotor brushes or lifting th...

Page 228: ...erator receives power from the generator terminal voltage then the 20 Hz injection voltage generator will be automatically switched off whenever the generator terminal voltage is not present 64S 100 Stator Ground Protection by Low Frequency Signal Injection NOTE The Stator Ground Protection function 64S must be selected when the M 3425A is initially ordered The 100 stator ground fault protection i...

Page 229: ...i amps and ranges from 2 to 75 mA This is the time delay on pickup for both overcurrent elements described above If voltage restraint is enabled the overcurrent pickup settings described above are varied depending on the magnitude of 20 Hz neutral voltage measured by the relay The pickup settings are more sensitive for neutral voltage less than or equal to 25 volts The pickup settings are de sensi...

Page 230: ...hat will result in 50 60 Hz phase ground fault voltages 200 V ac use the High Voltage connection for the 59N Function If 20 Hz Signal Generator is prior to Model EE a step down transformer is necessary for voltages 120 VAC Connection terminals for Model A00 EE shown 12 1 2 3 6 8 7 9 5 1A2 _ Supply Voltage DC 100 230 VAC UH L1 UH L2 L3 External Block Error Device Operative L 4 1A1 1A3 1A4 Figure 4 ...

Page 231: ... N Turns ratio of grounding transformer RN Neutral grounding resistance secondary Figure 4 73 Primary Transferred To Transformer Secondary Capacitive reactance of stator windings and unit transformer secondary Insulation resistance secondary XCP N2 RStator N2 V XCP RStator RFilter 8 Ohms RN CT 400 5 25 V 20 Hz N V XCS RS 8 Ohms RN CT 80 1 25 V 20 Hz I t ...

Page 232: ...if there is adequate sensitivity for this pickup setting Use the following two assumptions for the insulation resistance to calculate the current during normal operating conditions and a ground fault RStator 100 kilo Ohms normal operating conditions RStator 5 kilo Ohms ground fault There maybe only 2 to 3 milli amps or less in difference for the total current when the system is faulted and unfault...

Page 233: ...r 430 00426 Siemens 7XT33 20 Hz Band pass Filter 430 00427 Siemens 7XT34 20 Hz Measuring Current Transformer 400 5 A CT 430 00428 ITI CTWS 60 T50 401 Table 4 10 Low Frequency Signal Injection Equipment Part Number Cross Reference 20 Hz Injection Voltage I20 5 V 10 V 15 V 20 V 25 V 30 V 35 V 40 V 140 60 TRIP 45 V 0 V 64S Pickup Current Figure 4 74 Voltage Restraint Characteristic ...

Page 234: ...um Sensitivity Angle MSA At angles over 90 from MSA the relay operation is blocked Typical MSA setting for a generator internal ground fault protector is approximately 150 67N Residual Directional Overcurrent The Residual Directional Overcurrent function 67N provides protection from ground faults The 67N function can provide generator ground fault protection It can also provide directional discrim...

Page 235: ... inverse time curve Time dial setting See Figure 4 76 for Max Sensitivity Angle MSA settings Select the operating current Select the polarization voltage If 3V0 is selected VT configuration must be set to Line Ground 67NDT PICKUP Amps 67NDT DIR ELEMENT disable ENABLE 67NDT DELAY Cycles 67NIT PICKUP Amps 67NIT DIR ELEMENT disable ENABLE 67NIT CURVE bdef binv bvinv beinvV 67NIT TIME DIAL 67N MAXSENS...

Page 236: ...4 105 System Setup and Setpoints 4 Figure 4 77 Residual Directional Overcurrent 67N Setpoint Ranges ...

Page 237: ...at Z1 t1 blinder B will pick up When the swing reaches Z2 t2 blinder A will drop out If TRIP ON MHO EXIT option is disabled and the timer has expired t2 t1 time delay then the trip circuit is complete If the TRIP ON MHO EXIT option is enabled and the timer has expired then for the trip to occur the swing must progress and cross the MHO circle at Z3 t3 where the MHO element drops out Note the timer...

Page 238: ...nts 4 SYSTEM A B R P G N F H M MHO ELEMENT ELEMENTS GEN X d TRANS O X BLINDER C XT XS D d SWING LOCUS 1 5 XT 2Xd Figure 4 79 Out of Step Protection Settings A B Z3 t3 Z2 t2 Z1 t1 Z0 t0 Figure 4 78 Out of Step Relay Characteristics ...

Page 239: ...4 108 M 3425A Instruction Book Figure 4 80 Out of Step 78 Setpoint Ranges ...

Page 240: ...settings of the 81 function are shown in Figure 4 81 The frequency functions are automatically disabled when the input voltage positive sequence is very low typically between 2 5 V and 15 V based on the frequency The 81 function should be disabled using breaker contact when the unit is offline These magnitude and time settings describe a curve as shown in Figure 4 81 Example of Frequency 81 Trip C...

Page 241: ... Hz 81 Under Frequency Hz Trip Trip Over Frequency Time Delay 2 Over Frequency Time Delay 1 Under Frequency Time Delay 4 Under Frequency Time Delay 3 Over Frequency Magnitude 1 Under Frequency Magnitude 4 Over Frequency Magnitude 2 Under Frequency Magnitude 3 Figure 4 81 Example of Frequency 81 Trip Characteristics ...

Page 242: ...4 111 System Setup and Setpoints 4 Figure 4 82 Frequency 81 Setpoint Ranges ...

Page 243: ...les 81A 3 LOW BAND PICKUP Hz 81A 3 DELAY Cycles 81A 4 LOW BAND PICKUP Hz 81A 4 DELAY Cycles 81A 5 LOW BAND PICKUP Hz 81A 5 DELAY Cycles 81A 6 LOW BAND PICKUP Hz 81A 6 DELAY Cycles When using multiple frequency bands the lower limit of the previous band becomes the upper limit for the next band i e Low Band 2 is the upper limit for Band 3 and so forth Frequency bands must be used in sequential orde...

Page 244: ...tpoints 4 1 Band 2 Band 3 Band 4 Band 5 Band Example Band Fn 81 1 HB 81 1 LB 81 2 LB 81 3 LB 81 4 LB 0 10 15 5 Time mins Figure 4 83 Frequency Accumulator 81A Example Bands Figure 4 84 Frequency Accumulator 81A Setpoint Ranges ...

Page 245: ...isturbances This feature uses negative sequence voltage to block the 81R function When the measured negative sequence voltage exceeds the inhibit setting the function 81R and metering are blocked The time delay and magnitude settings of 81R should be based on simulation studies The ranges and increments are shown in Figure 4 85 Figure 4 85 Rate of Change of Frequency 81R Setpoint Ranges 81r 1 PICK...

Page 246: ...izing of the step up transformer more appropri ate settings might be 0 5 A pick up 20 slope and a delay of 5 to 8 cycles If line side and neutral side CTs do not have the same ratio the ratio error can be corrected the line side measured current is multiplied by the phase CT correction settings Line Side CTR Phase CT Correction Neutral Side CTR To provide restraint for CT saturation at high offset...

Page 247: ... 2 IRES 2 x INOM BLOCK TRIP MIN PU Operating Current IA x CTC Ia IB x CTC Ib IC x CTC Ic Where IA and Ia are generator high side and neutral side currents respectively and CTC is the CT Phase correction Figure 4 86 Differential Relay 87 Operating Characteristics Figure 4 87 Phase Differential 87 Setpoint Ranges ...

Page 248: ...higher values of RC noise may create substantial differential current making higher pickup settings desirable CAUTION Do NOT set the Delay to less than 2 Cycles In order to prevent mis operation during external faults with CT saturation conditions a time delay of 6 cycles or higher is recommended CT Ratio Correction Factor Phase CT Ratio Neutral CT Ratio The advantage of directional supervision is...

Page 249: ...be set using IPScom Expanded Outputs OUT9 OUT23 if equipped must be set using IPScom Figure 4 89 Breaker Monitor BM Setpoint Ranges BM PICKUP kA cycles BM INPUT INITIATE i6 i5 i4 i3 i2 i1 BM OUTPUT INITIATE 08 07 06 05 04 03 02 01 BM DELAY Cycles BM TIMING METHOD it i2t programmable output contact The accumulated value for each phase can be displayed as an actual value The accumulation starts afte...

Page 250: ...If the Trip Circuit is open and the output contact is open no current flows and the Trip Circuit Monitoring Input 52b M 3425A Trip Circuit Monitoring Input 2 1 Aux Input Output Contact Station Battery Other Contacts 52a 52 or 86 Trip Coil 86 or Figure 4 90 Trip Circuit Monitoring Input is deactivated An Output Contact that is welded closed would also cause the Trip Circuit Monitoring Input to deac...

Page 251: ...l target information for the external device More importantly these functions can be used in conjunction with IPSlogic to expand the capability of the relay by allowing the user to define customized operating logic Programming the IPSlogic can only be implemented through IPScom Communications Software The IPSlogic cannot be programmed using the Human Machine Interface HMI IPS LOGIC USE IPSCOM TO C...

Page 252: ...te Via Communication Point Selectable And Or Selectable And Or Initiate Via Communication Point Programmable Inputs 1 6 Inputs 7 14 Programmed Time Delay 1 65 500 Cycles 1091 sec Programmed Profile Setting Group 1 4 Programmed Outputs 1 8 Outputs 1 23 Log Target IPSlogic Activated Log Pickup This section of the IPSlogic initiates the Function Output This section of the IPSlogic is used to Block th...

Page 253: ... Function can be either timeout Trip or pickup The desired time delay for security considerations can be obtained in the IPSlogic Function time delay setting NOTES 1 This logic gate may be selected as either AND or OR 2 This logic gate may be selected as AND OR NOR or NAND Figure 4 93 IPSlogic Function Programming The IPSlogic Function can be programmed to perform any or all of the following tasks...

Page 254: ...4 123 System Setup and Setpoints 4 Figure 4 94 Selection Screen for Initiating Function Pickup Figure 4 95 Selection Screen for Initiating Function Timeout ...

Page 255: ...mer The Dropout Delay Timer logic is presented in Figure 4 96 The Dropout DelayTimer feature allows the user to affect an output time delay that starts when the IPSlogic PU Status drops out A and can hold the Output D status true beyond the Output Seal In Delay value C However the Seal In Delay E may hold the Output B true if the time after IPSlogic PU Status dropout A and Dropout DelayTimer value...

Page 256: ...cal Dimensions 5 2 5 3 External Connections 5 8 5 4 Commissioning Checkout 5 14 5 5 Circuit Board Switches and Jumpers 5 20 5 6 Low Frequency Signal Injection Equipment 5 24 5 7 IPScom Communications Software Installation 5 30 5 8 Activating Initial Local Communications 5 30 5 9 Initial Setup Procedure 5 31 Maximum relative humidity 80 for temperatures up to 31 C decreasing in a linear manner to 5...

Page 257: ...ot 4X 10 20 25 91 19 00 48 26 18 31 46 51 0 35 0 89 1 48 3 76 2 25 5 72 NOTE Dimensions in brackets are in centimeters Figure 5 1 M 3425A Horizontal Chassis Mounting Dimensions Without Expanded I O H1 5 2 Mechanical Physical Dimensions Figures 5 1 through 5 6 contain physical dimensions of the relay that may be required for mounting the unit on a rack ...

Page 258: ...PUTS OUT 7 OUT 8 EXIT ENTER TARGET DIAG TIME OSC TRIG SYNC BRKR CLOSED OK RELAY TARGET RESET PS 2 PS 1 17 5 44 45 ACTUAL 5 65 14 40 Recommended cutout when relay is not used as standard rack mount and is panel cut out mounted 19 00 48 26 17 50 44 45 0 35 0 89 0 03 0 076 NOTE Dimensions in brackets are in centimeters Figure 5 2 M 3425A Vertical Chassis Mounting Dimensions Without Expanded I O H2 ...

Page 259: ...M 3425A Instruction Book 5 4 0 35 0 89 18 31 46 51 NOTE Dimensions in brackets are in centimeters Figure 5 3 M 3425A Mounting Dimensions Horizontal and Vertical Chassis With Expanded I O ...

Page 260: ...Installation 5 5 5 18 31 46 51 0 32 0 81 18 31 46 51 0 32 0 81 NOTE Dimensions in brackets are in centimeters Figure 5 4 M 3425A Panel Mount Cutout Dimensions ...

Page 261: ...M 3425A Instruction Book 5 6 Figure 5 5 Mounting Dimensions for GE L 2 Cabinet H3 and H4 ...

Page 262: ...RONT VIEW H5 20 78 52 78 19 89 50 52 17 72 45 00 9 94 25 24 2 15 5 47 45 1 13 41 1 04 1 13 2 87 6 69 16 99 7 81 19 84 8 63 21 92 9 70 24 64 9 70 24 64 3 53 8 97 3 53 8 97 28 0 71 10 HOLES Figure 5 6 H5 Mounting Dimensions ...

Page 263: ...wer supplies must be powered from the same source 3 AMP 2 5 0 V 3 AB 3 AMP 2 5 0 V 3 AB F4 PS2 F2 PS1 I c 58 59 2 P S S P 1 60 61 62 63 F1 F3 5 5 2 6 8 6 5 18 6 6 8 5 2 1 8 5 5 Figure 5 8 Expanded I O Power Supply Grounding Requirements The M 3425A is designed to be mounted in an adequately grounded metal panel using grounding techniques metal to metal mounting and hardware that assures a low impe...

Page 264: ...ing a voltage other than the voltage that the unit is configured to may result in mis operation or permanent damage to the unit 3 8 WARNING ONLY DRY CONTACTS must be connected to inputs terminals 5 through 10 with 11 common and terminals 68 through 75 with 66 and 67 common because these contact inputs are internally wetted Application of external voltage on these inputs may result in damage to the...

Page 265: ... b c a b c OR OR High Impedance Grounding 52 53 M 3425A R Low Impedance Grounding OR 50 51 48 49 46 47 M 3425A Other Relays 1 1 1 A B C Example of Control Output Connections M 3425A Power Supply 52G TRIP ALARM SELF TEST FAILURE ALARM POWER OK STATUS ALARM VT FUSE LOSS EXTERNAL INPUTS ALARM OUTPUTS CONTROL OUTPUTS TRIP OUTPUT BREAKER FAILURE INITIATE 52Ga 5 3 3 3 6 OSCILLOGRAPH RECORDER INITIATE 60...

Page 266: ...nnection A B C OR VX 64 65 M 3425A 64 65 M 3425A VX Two VT Open Delta Connection 43 41 39 42 40 38 M 3425A OR A B C Used when Generator Side VTs are connected Line Ground Used when Generator Side VTs are connected Line Line Used for Sync Check 25 Figure 5 11 Function 25 Sync Check Three Line Connection Diagram ...

Page 267: ...M 3425A A B C Line to Neutral Voltage Rated Cable R R 45 44 M 3425A High Impedance Grounding OR VX used for turn to turn fault protection 59X VX NOTE If 59X is enabled for Turn to Turn Fault Protection then the 25 Function is not available Figure 5 12 Function 59X Turn to Turn Fault Protection Three Line Connection Diagram ...

Page 268: ...al I N input can be connected either at Neutral or as Residual OR R 45 44 M 3425A High Impedance Grounding 65 64 M 3425A R 59X Bus Ground 65 64 M 3425A A B C R 67N 59D Connection 53 52 M 3425A 67N Connection Residual CT Bus Section VX VX can be used for both 67N and 59D if connected in this manner Figure 5 13 Function 67N 59D 59X Bus Ground Three Line Connection Diagram ...

Page 269: ...ield commissioning check the following to ensure that the CT and VT connections are correct 1 Press ENTER After a short delay the unit should display VOLTAGE RELAY VOLT curr freq v hz pwr V 2 Press the right arrow button until the unit displays STATUS config sys STAT V 3 Press ENTER The unit should display VOLTAGE STATUS VOLT curr freq v hz V 4 Press ENTER The unit should display either VA VB VC l...

Page 270: ...T until the unit displays VOLTAGE STATUS VOLT curr freq v hz 15 Press the right arrow to display CURRENT STATUS volt CURR freq v hz 16 Press ENTER to display line currents IA IB IC The unit should display PHASE CURRENT A B C Compare these currents with the measured values using a meter If there is a discrepancy check the CT connections to the rear terminal block of the unit 17 Press ENTER for the ...

Page 271: ...ERMAL CURRENT 2 Amps 26 Press EXIT then the Right arrow to display FREQUENCY STATUS volt curr FREQ v hz V 27 Press ENTER to display FREQUENCY Hz 28 Press ENTER to display RATE OF CHANGE FREQUENCY Hz Sec 29 Press EXIT then right arrow to display V HZ STATUS volt curr freq V HZ V 30 Press ENTER to display VOLTS PER HERTZ 31 Press EXIT then right arrow to display POWER STATUS W POWR imped sync brkr V...

Page 272: ...VOLTAGE Volts LO 43 Press ENTER to display DELTA FREQUENCY Hz HI 44 Press EXIT then right arrow until unit displays BREAKER MON ACC STATUS W power imped sync BRKR V 45 Press ENTER to display BREAKER MON ACC STATUS A A cycles Press ENTER to cycle through Acc Status screens for B and C 46 Press EXIT then right arrow until unit displays 81A ACCUMULATORS STATUS W FREQ_ACC i o timer V 47 Press ENTER to...

Page 273: ... EXIT then right arrow until unit displays COUNTERS W temp COUNT powerup V 59 Press ENTER to display OUTPUT COUNTER 1 Pressing ENTER will display a status screen for each of the 23 outputs 60 Press ENTER to display ALARM COUNTER 61 Press EXIT then right arrow until the unit displays TIME OF LAST POWER UP W temp count POWERUP V 62 Press ENTER to display TIME OF LAST POWER UP 05 Jan 2003 20 39 29 NO...

Page 274: ...isplay COMM RX ERROR COUNTER 69 Press ENTER to display SELFTEST COUNTER 70 Press ENTER to display RESET COUNTER 71 Press ENTER to display POWERLOSS COUNTER 72 Press EXIT then right arrow until the unit displays CHECKSUMS W error CHECK 73 Press ENTER to display SETPOINTS CHECKSUM EECS BBCS CAL 74 Press ENTER to display CALIBRATION CHECKSUM EECS BBCS CAL 75 Press ENTER to display ROM CHECKSUM ...

Page 275: ...d 11 4 Loosen the two circuit board retention screws captured 5 Remove the circuit board from the chassis 6 Jumpers J5 J18 J20 J21 J22 J46 J60 and J61 are now accessible See Figure 5 14 M 3425A Circuit Board for locations 7 Dipswitch SW1 is now accessible See Figure 5 14 for location 8 Insert circuit board into chassis guides and seat firmly 9 Tighten circuit board retention screws 10 Reconnect J ...

Page 276: ...ized CAUTION A loss of calibration setpoints and configuration will occur when the EEPROM is initialized to default Table 5 2 Dip Switch SW 1 Dipswitch SW1 1 2 3 4 X X X Open Up X Closed Down 3 Up 4 Up Run Mode 3 Up 4 Down Initialize EEPROM to default See Caution Below 3 Down 4 Up Initialize Access Codes and Communication 3 Down 4 Down Factory Use 2 Up Flash Update Disable Factory Default 2 Down F...

Page 277: ...M 3425A Instruction Book 5 22 Figure 5 14 M 3425A Circuit Board ...

Page 278: ...Installation 5 5 23 Figure 5 15 M 3425A Circuit Board Expanded I O ...

Page 279: ... for the 59N Function If 20 Hz Signal Generator is prior to Model EE a step down transformer is necessary for voltages 120 VAC Connection terminals for Model A00 EE shown 12 1 2 3 6 8 7 9 5 1A2 _ Supply Voltage DC 100 230 VAC UH L1 UH L2 L3 External Block Error Device Operative L 4 1A1 1A3 1A4 Figure 5 16 Low Frequency Signal Injection Equipment Typical Connections 5 6 Low Frequency Signal Injecti...

Page 280: ...Installation 5 5 25 Figure 5 17 20 Hz Frequency Generator Housing Panel Surface Mount ...

Page 281: ...M 3425A Instruction Book 5 26 Figure 5 18 20 Hz Frequency Generator Housing Panel Flush Mount ...

Page 282: ...Installation 5 5 27 Figure 5 19 20 Hz Band Pass Filter Housing Panel Surface Mount ...

Page 283: ...M 3425A Instruction Book 5 28 Figure 5 20 20 Hz Band Pass Filter Housing Panel Flush Mount ...

Page 284: ...Installation 5 5 29 Figure 5 21 20 Hz Measuring Current Transformer 400 5 A CT ...

Page 285: ... IPScom installation disk c Select Run to start the installation process 5 8 Activating Initial Local Communications The relay and IPScom Communications Software are shipped from the factory with the same default communication parameters Therefore it may not be necessary to set up communication parameters In order for IPScom to communicate with the relay using direct serial connection a serial nul...

Page 286: ...hrough remote communication utilizing S 3400 IPScom Communications Software Following the Setup Procedure are several sections which provide additional detail concerning the settings required for proper commissioning Setup Procedure NOTE ConfigurationRecordformsareavailablein Appendix A Configuration Record Forms to record settings for future reference 1 Connect power to the relay s rear power ter...

Page 287: ...Disabling unused functions improves the response time of the indicators and controls 8 Enable the desired protective functions for the relay application The general information required to complete the input data on this section includes Enable disable function Output choices OUT1 8 Input blocking choices IN1 6 The relay is shipped with a certain group of standard functions including other optiona...

Page 288: ...6 34 50N Instantaneous Neutral Overcurrent 6 35 51N Inverse Time Neutral Overcurrent 6 36 51V Inverse Time Phase Overcurrent with Voltage Control Restraint 6 37 59 Phase Overvoltage 6 39 59D Third Harmonic Voltage Differential 6 40 59N Overvoltage Neutral Circuit or Zero Sequence 6 41 59X Multipurpose Overvoltage 6 42 60FL VT Fuse Loss Detection 6 43 64F Field Ground Protection 6 44 64B Brush Lift...

Page 289: ...hase independent voltage sources 0 to 250 V variable phase to simulate VT inputs 4 Three phase independent current sources 0 to 25 A variable phase to simulate CT inputs 5 Electronic timer accurate to at least 8 ms 6 For relays with the 64F B option a Resistor decade box capable of 500 ohms to 150 kOhms able to step in 100 ohm increments b Capacitors ranging from 0 15 mf to 10 mf 7 For relays with...

Page 290: ... test configurations are for ABC phase rotation They must be adjusted appropriately for ACB phase rotation Hot Neutral Voltage Input 1 VA 120 V ac 0 VB 120 V ac 120 Hot Neutral Voltage Input 2 VN Hot Neutral VX Hot Neutral VC 120 V ac 120 Hot Neutral Voltage Input 3 Figure 6 1 Voltage Inputs Configuration V1 VAB 120 0 Voltage Input 1 120 Voltage Input 2 120 90 Hot Neutral Neutral Hot VBC 120 120 V...

Page 291: ...rent Input 1 Polarity Current Input 2 Current Input 3 Ib 120 Ic 120 Figure 6 3 Current Inputs Configuration C1 IA 0 47 46 49 48 51 50 53 52 Current Input 1 Polarity Current Input 2 Current Input 3 IB 120 IC 120 IN Figure 6 4 Current Inputs Configuration C2 ...

Page 292: ...nt Input 2 Polarity 47 AØ 46 I A 0 49 BØ 48 I B 51 CØ 50 I C 120 o 240 o Current Input 1 Polarity 55 aØ 54 I A 0 57 bØ 56 I B 59 cØ 58 I C 120 o 240 o Figure 6 5 Current Configuration C3 Figure 6 6 64S Test Configuration ...

Page 293: ...method to enter setting quantities is found in detail in Section 4 4 System Setpoints It is desirable to record and confirm the actual settings of the individual functions before beginning test procedures Use the SETPOINTS AND SETTINGS RECORD FORM found in Appendix A to record settings The tests are described in this section in ascending function number order as in Chapter 4 System Setup and Setpo...

Page 294: ...SS e The unit will display the model number BECKWITH ELECTRIC CO M 3425A Expanded f The unit will display the firmware version BECKWITH ELECTRIC D 0150xx xx xx g The unit will display the serial number Beckwith electric co SERIAL NUMBER xxx h The POWER LED s will illuminate i The RELAY OK LED will flash or stay on as programmed in the diagnostic menu j The BREAKER CLOSED LED will remain illuminate...

Page 295: ... which pickup operation is to be expected for an individual setting is determined as follows a Define reach as R ohms P ohms O ohms O usually set at zero ohms b For Line Ground configuration define current as I Selected Voltage I R ohms The voltage level may be selected based on the desired test current level For Line Line configuration define current as I Selected Voltage S3 I R ohms Pickup Test ...

Page 296: ... shown in Figure 6 1 Voltage Inputs Configuration V1 5 The Volts per Hertz pickup level at a percentage setting at Nominal Frequency 50 or 60 Hz is Pickup voltage P 100 x NominalVoltage where the NominalValues have been programmed in the system setup data described in Section 4 2 System Setup and are recorded on Figure A 2 System Setup Record Form Pickup Test 1 Press and hold the TARGET RESET push...

Page 297: ...st voltage inputs as shown in Figure 6 1 Voltage Inputs Configuration V1 6 The Volts Hz pickup level of a percentage setting at nominal frequency 50 or 60 Hz is Pickup voltage P 100 x Nominal Voltage where the Nominal Values have been programmed in the system setup data described in Section 4 2 System Setup and are recorded on Figure A 2 System Setup Record Form 7 Test levels may be chosen at any ...

Page 298: ...g to 1 of the pickup value 3 Press and hold the TARGET RESET pushbutton 4 Reduce the applied voltage and start timing when the voltage drops below the pickup value stop timing when the TARGET LED extinguishes The time should be the reset time within 1 5 Repeat Pickup Test and Time Test for all chosen test levels The curve portion extending to lower than P V Hz values are inactive and can be ignore...

Page 299: ...ing tests will reference the positive sequence voltage as V1 5 Connect test voltage inputs as shown in Figure 6 1 Voltage Inputs Configuration V1 6 Set V1 and VX to the Nominal Voltage The Nominal Voltage value previously input to the relay is described in Section 4 2 Setup System and should be recorded on Figure A 2 Setup System Record Form Dead V1 Hot VX Test 1 Enable Dead V1 Hot VX and disable ...

Page 300: ... RESET pushbutton then slowly decrease the voltage applied to V1 and VX until Output Z LED illuminates or the pickup indicator illuminates on the IPScom Function Status screen The voltage level should be equal to DVL 0 5 V or 0 5 5 Release the TARGET RESET pushbutton then increase the voltage applied to V1 and VX The OUTPUT LED will extinguish 6 Set V1 to Nominal Voltage 7 Decrease VX to less than...

Page 301: ...tage used for reference may be selected through the System Setup menu The following tests will reference the phase voltage as V1 although any phase may be used for testing Line to Line testing will follow the same procedures with V1 representing the proper Line to Line phase input Each test below can be performed using any of the three phases as a reference 5 Connect test voltage inputs as shown i...

Page 302: ...ng when the contacts Z close 4 Remove the phase angle difference and start timing The contacts will close after SD cycles within 1 to 3 cycles or 1 Delta Voltage Test 1 Set the Upper and Lower Voltage limits to their maximum and minimum values respectively 2 Set VX to 140 V and V1 to 40 V 3 Press and hold the TARGET RESET pushbutton then slowly increase the voltage applied to V1 until Output Z LED...

Page 303: ...hat describe disabling enabling functions 4 Connect test voltage inputs as shown in Figure 6 1 Voltage Inputs Configuration V1 Pickup Test 1 Press and hold the TARGET RESET pushbutton then slowly decrease the Phase A input voltage until the 27 PHASE UNDERVOLTAGE LED illuminates or the pickup indicator illuminates on the IPScom Function Status screen The voltage level should be equal to P volts 0 5...

Page 304: ...Function 27TN Third Harmonic Undervoltage Neutral settings to be tested 2 Enter the Function 27TN Third Harmonic Undervoltage Neutral settings to be tested utilizing either the HMI or IPScom Communications Software 3 Disable all other functions prior to testing Refer to Section 4 4 System Setpoints for details that describe disabling enabling functions 4 Connect test voltage inputs as shown in Fig...

Page 305: ...ained utilizing either the HMI Status Power Status or IPScom Communications Software Relay Monitor Secondary Status 3 Adjust three phase voltage and current inputs to obtain a Power Real p u value greater than FP 4 Enable the Forward Power Block utilizing either the HMI or IPScom Communications Software 5 Decrease the applied three phase current until the OUTPUT LED s extinguishes The Power Real p...

Page 306: ...lue previously input to the relay is described in Section 4 2 Setup System and should be recorded on Figure A 2 Setup System Record Form 2 Apply a nominal current input consistent with Figure 6 3 Current Inputs Configuration C1 The Nominal Current value is described in Section 4 2 Setup System and should be recorded on Figure A 2 Setup System Record Form 3 Adjust three phase voltages and currents ...

Page 307: ...etup System Record Form 3 Enable the High Low Band Forward Power Block utilizing either the HMI or IPScom Communications Software 4 Adjust three phase voltages and currents to obtain a High Low Forward Power Block value either greater than the Low Band Forward Power Block LFP or less than the High Band Forward Power Block HFP The 27TN 59D 100 STATOR GND LED will illuminate then the OUTPUT LED will...

Page 308: ...uts Configuration V1 5 Connect test current inputs as shown in Figure 6 3 Current Inputs Configuration C1 6 The level of current at which operation is to be expected for an individual power setting is given by multiplying the PU pickup value P above by the Nominal Current value previously input to the relay The Nominal Current value is described in Section 4 2 Setup System and should be recorded o...

Page 309: ...ase the TARGET RESET pushbutton 4 Increase the three phase currents The OUTPUT LED s will extinguish 5 Press the TARGET RESET pushbutton to reset targets Pickup Test Negative Reverse Under Power Flow 1 Set the phase currents at 180 degrees from the respective phase voltages 2 Press and hold the TARGET RESET pushbutton then slowly decrease the three phase currents until the 32 DIRECTIONAL POWER LED...

Page 310: ...r illuminates on the IPScom Function Status screen The level of operation will be equal to the Reactive Pickup 2 or 0 002 PU whichever is greater 3 Release the TARGET RESET pushbutton 4 Adjust phase angles until the OUTPUT LED s extinguish 5 Press the TARGET RESET pushbutton to reset targets Time Test 1 Connect a timer to output contacts Z so that the timer stops timing when the contacts Z close 2...

Page 311: ...of Field settings to be tested 2 Enter the Function 40 Loss of Field settings to be tested utilizing either the HMI or IPScom Communications Software 3 Disable all other functions prior to testing Refer to Section 4 4 System Setpoints for details that describe disabling enabling functions 4 Connect test voltage inputs as shown in Figure 6 1 Voltage Inputs Configuration V1 5 Connect test current in...

Page 312: ...extinguish 5 Press the TARGET RESET pushbutton to reset targets Time Test 1 Connect a timer to output contacts Z so that the timer stops timing when the contacts Z close 2 Set the three phase voltages VA VB and VC to the Selected Voltage value from Step 6 and set the phase angle between the voltage and current inputs to 90 current leading voltage 3 Apply I 10 Amps and start timing Contacts will cl...

Page 313: ... C1 Modified Modify Configuration C1 by exchanging Current Input 2 and 3 Phase B current Input 3 and Phase C current Input 2 NOTE For proper testing use I 3 x CT rating 5 The level of current at which operation is to be expected for an individual setting is given by Pickup current P 100 x Nominal Current previously input to the relay The Nominal Current value is described in Section 4 2 Setup Syst...

Page 314: ...l Current previously input to the relay a Test levels may be chosen at any percentages of Nominal Current which are a minimum of 5 higher than the pickup percentage P Suggest 4 or 5 test levels chosen and calculated in amps b The Nominal Current value is described in Section 4 2 Setup System and should be recorded on Figure A 2 Setup System Record Form Time Test 1 Connect a timer to output contact...

Page 315: ...s Software 3 Disable all other functions prior to testing Refer to Section 4 4 System Setpoints for details that describe disabling enabling functions 4 Connect test current inputs as shown in Figure 6 3 Current Inputs Configuration C1 5 Calculate t time to trip in minutes for the desired test settings as follows Where Where t time to trip in minutes τ time constant IL relay current applied IPL pr...

Page 316: ...and start timing The time to trip should be t minutes 5 Time Test Preload 1 Connect a timer to output contacts Z so that the timer stops timing when the contacts Z close NOTE The 49 Stator Overload 49 1 and 49 2 current values can be obtained utilizing either the HMI Status Current Status or IPScom Communications Software Relay Monitor Secondary Status 2 Determine the 49 Stator Overload 49 1 and 4...

Page 317: ... to testing Refer to Section 4 4 System Setpoints for details that describe disabling enabling functions 4 Connect test current inputs as shown in Figure 6 3 Current Inputs Configuration C1 Pickup Test 1 Press and hold the TARGET RESET pushbutton then slowly increase Current Input 3 Phase C until the PHASE OVERCURRENT 50 LED illuminates or the pickup indicator illuminates on the IPScom Function St...

Page 318: ...ble the 50BF Phase Element and disable the 50BF Neutral Element b 50BF Ph Pickup Setting P amps Time delay setting D cycles Testing 50BF Ph Generator Breaker Failure Operation 1 Externally short any ONE set of contacts I IN shown above 2 Short IN1 connect contacts 10 11 to simulate 52b contact closure breaker open Alternatively the external contact may be operated if all connections are made 3 Pre...

Page 319: ...e current input The OUTPUT LED s extinguish 6 Press the TARGET RESET pushbutton to reset targets Time Test 50BF N Generator Breaker Failure Operation 1 Connect a timer to output contacts Z so that the timer stops timing when the contacts Z close 2 Apply approximately 110 of N amps and start timing The operating time will be D cycles within 1 cycle or 1 3 Reduce Current Input 3 to 0 amps Test Setup...

Page 320: ...ter a minimum of D cycles 2 Press and hold the TARGET RESET pushbutton then slowly increase the Phase A current Input 1 until the 50 27 INADVERTENT ENRGNG LED illuminates or the pickup indicator illuminates on the IPScom Function Status screen The level of operation will be P amps 0 1 A or 2 3 If desired set the dropout time delay T to minimum setting 4 Press and hold the TARGET RESET pushbutton t...

Page 321: ... listed above Refer to Section 4 4 System Setpoints for details that describe disabling enabling functions 4 Connect test current inputs as shown in Figure 6 4 Current Inputs Configuration C2 5 Set the three phase voltages VA VB and VC to the Nominal Voltage The Nominal Voltage value previously input to the relay is described in Section 4 2 Setup System and should be recorded on Figure A 2 Setup S...

Page 322: ...ions Software 3 Disable all other functions prior to testing Refer to Section 4 4 System Setpoints for details that describe disabling enabling functions Pickup Test 1 Press and hold the TARGET RESET pushbutton then slowly increase Current Input IN terminals 53 and 52 until the NEUTRAL O C 50N 51N LED illuminates or the pickup indicator illuminates on the IPScom Function Status screen The current ...

Page 323: ... Setup 1 Determine the Function 51N Inverse Time Neutral Overcurrent settings to be tested 2 Enter the Function 51N Inverse Time Neutral Overcurrent settings to be tested utilizing either the HMI or IPScom Communications Software 3 Disable all other functions prior to testing Refer to Section 4 4 System Setpoints for details that describe disabling enabling functions 4 Refer to Appendix D Figures ...

Page 324: ... to testing Refer to Section 4 4 System Setpoints for details that describe disabling enabling functions 4 Connect test voltage inputs as shown in Figure 6 1 Voltage Inputs Configuration V1 5 Connect test current inputs as shown in Figure 6 3 Current Inputs Configuration C1 6 Test levels may be chosen at any ampere values which are a minimum of 50 higher than the pickup amps P Amps It is suggested...

Page 325: ...the IPScom Function Status screen 3 Release the TARGET RESET pushbutton 4 When the assigned OUTPUT LED s illuminates then increase the Phase A B C Input Voltage to at least 0 5 Volts greater than V Volts The assigned OUTPUT LED s will extinguish at V Volts 0 5 V or 0 5 5 Press the TARGET RESET pushbutton to reset targets 6 Reduce Phase A B C Current Input to 0 amps 7 Decrease the Phase A B C Input...

Page 326: ...tion V1 5 Set the three phase voltages VA VB and VC to the Nominal Voltage The Nominal Voltage value previously input to the relay is described in Section 4 2 Setup System and should be recorded on Figure A 2 Setup System Record Form Pickup Test 1 Press and hold the TARGET RESET pushbutton then slowly increase the Phase A Voltage Input until the 59 PHASE OVERVOLTAGE LED illuminates or the pickup i...

Page 327: ...Test NOTE If 3VO is being used then use anyone of the phase voltages or all three at zero sequence 1 Apply a voltage less than VN to the selected line side voltage VX or 3VO at 180 Hz 150 Hz for 50 Hz unit 2 Press and hold the TARGET RESET pushbutton then slowly increase Voltage to the selected line side Input VX or 3V0 until the 59DTHIRD HARMVOLT DIFF LED illuminates or the pickup indicator illum...

Page 328: ...l other functions prior to testing Refer to Section 4 4 System Setpoints for details that describe disabling enabling functions 4 Connect a voltage input to VN terminal numbers 44 and 45 Pickup Test 1 Press and hold the TARGET RESET pushbutton then slowly increase Voltage Input VN until the 59N NEUT GND OVERVOLT LED illuminates or the pickup indicator illuminates on the IPScom Function Status scre...

Page 329: ...tions Software 3 Disable all other functions prior to testing Refer to Section 4 4 System Setpoints for details that describe disabling enabling functions 4 Connect a voltage input to VX terminal numbers 64 and 65 Pickup Test 1 Press and hold the TARGET RESET pushbutton then slowly increase Voltage Input VX until the 59N NEUT GND OVERVOLT LED illuminates or the pickup indicator illuminates on the ...

Page 330: ...to the Nominal Voltage The Nominal Voltage value previously input to the relay is described in Section 4 2 Setup System and should be recorded on Figure A 2 Setup System Record Form Time Test 1 Connect a timer to output contacts Z so that the timer stops timing when the contacts Z close 2 Disconnect the Phase A B C Voltage Input and start timing The 60FL V T FUSE LOSS LED and Output Z LEDs will il...

Page 331: ... 3921 Field Ground Coupler and decade box as described in Figure 6 7 Field Ground Coupler 5 Set decade box resistance to 10 greater than pickup P kOhms Pickup Test 1 Press and hold the TARGET RESET pushbutton then slowly decrease the resistance on the decade box until the FIELD GND BRUSH LIFT 64F B LED illuminates or the pickup indicator on the IPScom Function Status screen illuminates The level o...

Page 332: ...le resistor 5 to 100 KΩ and a discrete capacitor to the coupler module M 3921 8 WARNING When auto calibrating the jumper used to short pins 2 3 must be removed when calibration is complete Placing the M 3921 in service with this jumper installed will result in serious damage The value of Cf should approximate the rotor capacitance Figure 6 7 Field Ground Coupler ...

Page 333: ...d Coupler 5 Set Rf to open infinity and Cf to 1 µF Pickup Test 1 Access the FIELD GND MEAS CIRCUIT display under the VOLTAGE menu in STATUS Set the pickup P to 110 of the displayed value Refer to Section 2 2 Operation for details that describe how to access the STATUS MENU which contains the FIELD GND MEAS CIRCUIT value in mV 2 Press and hold the TARGET RESET pushbutton then Open the Test Switch T...

Page 334: ...age generator to apply 25 s0 volts across terminals 44 and 45 4 Press and hold the TARGET RESET pushbutton in then slowly increase the 20 Hz current applied to terminals 52 and 53 until the 27TN 59D 64S STATOR GND LED illuminates or the function status indicator on the Monitor Function Status screen indicates that the function has picked up The 20 Hz current level should be equal to P mA 2 mA or 1...

Page 335: ...z current level should be equal to 1 4 P mA 2 mA or 10 8 Release the TARGET RESET pushbutton 9 Disable the Total Current Pickup 10 Enable the Real Component of Current Pickup 11 Adjust the 20 Hz voltage generator to apply 25 s0 volts across terminals 44 and 45 12 Press and hold the TARGET RESET pushbutton in then slowly increase the 20 Hz current at an angle of 60 degrees leading the 20 Hz voltage...

Page 336: ... Enable under frequency inhibit 9 Decrease the frequency of the balanced nominal three phase voltage to VA VAB VB VBC and VC VCA to 30 Hz 10 Adjust the 20 Hz Voltage Generator to apply 25 s0 Volts across terminals 44 and 45 11 Press and hold the TARGET RESET pushbutton in then slowly increase the 20 Hz current applied to terminals 52 and 53 until the 20 Hz current level is equal to P mA This funct...

Page 337: ... HMI or IPScom Communications Software 3 Disable all other functions prior to testing Refer to Section 4 4 System Setpoints for details that describe disabling enabling functions 4 Disable the Directional Element 5 Connect inputs for the polarization type and operating current selected for testing Pickup Test non directional 1 Apply current 10 less than pickup P to the operating current If 3I0 use...

Page 338: ...s and hold the TARGET RESET pushbutton then slowly swing the angle of the selected operating current applied towards the MSA until the GND DIFF DIR O C 87GD 67N LED illuminates or the function status indicator on the Monitor Function Status screen indicates that the function has picked up The angle should be equal to A 90 or 90 depending to which side of MSA the current has been set 7 Release the ...

Page 339: ...nal Overcurrent Inverse Time settings to be tested utilizing either the HMI or IPScom Communications Software 3 Disable all other functions prior to testing Refer to Section 4 4 System Setpoints for details that describe disabling enabling functions 4 Disable Directional Element 5 Refer to Appendix D Inverse Time Curves and IEC equations below to calculate test times for levels represented on the ...

Page 340: ...he current angle to an angle greater than 100 from MSA 5 Apply current 10 greater than PI3 for type 3 use P to all three phases 6 Press and hold the Target Reset pushbutton then slowly swing the angle of the selected operating current towards the MSA until the GND DIFF DIR O C 87GD 67N LED illuminates or the function status indicator on the Monitor Function Status screen indicates that the functio...

Page 341: ...ct test current inputs as shown in Figure 6 4 Current Inputs Configuration C1 8 Set the three phase voltages VA VB and VC to the Nominal Voltage The Nominal Voltage value previously input to the relay is described in Section 4 2 Setup System and should be recorded on Figure A 2 Setup System Record Form Pickup Test 1 Disable the Function 78 Out of Step TRIP ON MHO EXIT setting then set the delay D ...

Page 342: ...us indicator on the Monitor Function Status screen indicates that the function has reset 6 If testing is complete then reduce voltages and currents to zero Pickup Test Trip on mho Exit 1 Enable the TRIP ON MHO EXIT setting 2 While monitoring the Positive Sequence Impedance set the magnitude and phase angle of the Input Currents to point Z0 in Figure 4 79 3 Press and hold the TARGET RESET pushbutto...

Page 343: ... 5 Set the three phase voltagesVA VB andVC to the NominalVoltage nominal frequency The Nominal Voltage value previously input to the relay is described in Section 4 2 Setup System and should be recorded on Figure A 2 Setup System Record Form Pickup Test 1 Press and hold the TARGET RESET pushbutton then slowly increase decrease the Input Voltage VA VB and VC Frequency until the FREQUENCY ROCOF 81 8...

Page 344: ...g functions 4 Connect test voltage inputs as shown in Figure 6 1 Voltage Inputs Configuration V1 5 Set the three phase voltagesVA VB andVC to the NominalVoltage nominal frequency The Nominal Voltage value previously input to the relay is described in Section 4 2 Setup System and should be recorded on Figure A 2 Setup System Record Form Output Test 1 Connect a timer to output contacts Z so that the...

Page 345: ...al window that is free of erroneous Hz Sec measurements when the voltage source begins or ends the sweep NOTE Using this setup it is important to remember that the 81 elements being used will be operating in the 81R blocking regions and the 81R contact operation must be distinguished from the 81 contacts F81 1 Block 81R Active Region F81 2 Block 56 5 Hz 57 5 Hz 60 Hz 62 5 Hz 63 5 Hz c Utilizing a ...

Page 346: ...d in Section 4 2 Setup System and should be recorded on Figure A 2 Setup System Record Form Verify that the FREQUENCY ROCOF 81 81R LED illuminates or the function status indicator on the Monitor Function Status screen indicates that the function has picked up 3 Swing the phase angle of a Phase Voltage and monitor the Positive and Negative Sequence Voltage levels The 81R OUTPUT should reset when th...

Page 347: ...s 4 Connect test current inputs as shown in Figure 6 5 Current Inputs Configuration C3 Minimum Pickup Test 1 Set Current Input 1 Ia to 0 Amps 2 Press and hold the TARGET RESET pushbutton then slowly increase Current Input 2 IA until the PHASE DIFF CURRENT 87 LED illuminates or the function status indicator on the Monitor Function Status screen indicates that the function has picked up The current ...

Page 348: ...t slope value S for these computations 3 Set Current Input 1 Ia and Current Input 2 IA to the values chosen in Step 1 and calculated in Step 2 respectively 4 Press and hold the TARGET RESET pushbutton then slowly increase either Current Input 1 or 2 until the PHASE DIFF CURRENT 87 LED illuminates or the function status indicator on the Monitor Function Status screen indicates that the function has...

Page 349: ... 52 5 Connect a current input to IA terminals 46 and 47 or IB terminals 48 and 49 Non Directional Pickup Test 1 Press and hold the TARGET RESET pushbutton then slowly increase Current Input IN terminals 53 and 52 until the GND DIFF DIR O C 87GD 67N LED illuminates or the function status indicator on the Monitor Function Status screen indicates that the function has picked up The current level of o...

Page 350: ...ecrease the applied currents to 0 Amps 5 Press the TARGET RESET pushbutton to reset targets 6 Set the phase angle of the Current Input selected in Step 3 to 0 degrees the Current Inputs are now in phase 7 Reapply a current of 1 0 Amp to Current Input IN terminals 53 and 52 8 Reapply a current of P 0 9 Amps to the Current Input selected in Step 3 and start timing The relay will not operate If the I...

Page 351: ...itoring Function settings to be tested utilizing either the HMI or IPScom Communications Software 3 Connect a current input to IA terminals 46 and 47 IB terminals 48 and 49 and IC terminals 50 and 51 4 Connect inputs for the polarization type selected for testing Accumulator Test 1 Apply a current value that considers Timing Method and Pickup Setting to current input IA 2 Place a jumper between th...

Page 352: ...ce a jumper between the designated input or energize the output contact selected as initiate and then remove the jumper and or de energize the output Following the time out of the Delay the accumulator will increment repeat the placement and removal of the jumper as necessary to increment the accumulator to a point where the pickup setting is exceeded 3 When the accumulator value exceeds the picku...

Page 353: ...e relay to terminals 1 and 2 2 Enable the Trip Circuit Monitoring function and then enter the settings to be tested utilizing either the HMI or IPScom Communications Software 3 Remove the DC voltage applied in Step 1 The OUTPUT LED will illuminate or the function status indicator on the Monitor Function Status screen will indicate that theTrip Circuit Monitoring function has actuated The contacts ...

Page 354: ... is selected ensure at least two outputs are chosen It will be necessary to enable and operate other functions to provide inputs for the Function Initiate and Output Initiate gates Time Test 1 Connect a timer to output contacts Z so that the timer stops timing when the contacts Z close 2 Connect a jumper from IN RTN Terminal 11 to the designated Inputs Terminals 1 6 for the IPSlogic gates and star...

Page 355: ...RNING Do not enter DIAGNOSTIC MODE when protected equipment is in service Entering DIAGNOSTIC MODE when protected equipment is in service removes all protective functions of the relay 1 Press ENTER to access the main menu 2 Press the right arrow pushbutton until the following is displayed SETUP UNIT W SETUP exit 3 Press ENTER the following will be displayed SOFTWARE VERSION VERS sn access number V...

Page 356: ...of this chapter then go to Step4 4 Ensure that the Diagnostic Menu is selected to OUTPUT Upper Case OUTPUT TEST RELAY OUTPUT input led target button disp com1 com2 com3 clock led cal factory If OUTPUT is not selected Upper Case then use the Right Left arrow pushbuttons to select OUTPUT 5 Press ENTER the relay will display the following RELAY NUMBER 1 6 Select the Output Relay from Table 6 1 to be ...

Page 357: ...es the user to determine the status of the individual control status inputs Individual inputs can be selected by number using the up and down arrow pushbuttons The status of the input will then be displayed Input Number Common Terminal Terminal 1 52b 11 10 2 11 9 3 11 8 4 11 7 5 11 6 6 11 5 Expanded I O Inputs 7 66 or 67 75 8 66 or 67 74 9 66 or 67 73 10 66 or 67 72 11 66 or 67 71 12 66 or 67 70 1...

Page 358: ...ng is complete then insure all jumpers have been removed and press EXIT to return to the Diagnostic Menu 11 If all Diagnostic Testing is complete then exit the diagnostic menu by pressing EXIT PRESS EXIT TO EXIT DIAGNOSTIC MODE is displayed then press EXIT a second time Status LED Test The STATUS LED TEST menu enables the user to check the front panel LEDs individually Figure 6 8 Status LED Panel ...

Page 359: ...in the Diagnostic Mode then go to Step 2 If the relay is NOT in the Diagnostic Mode then enter the relay diagnostic mode by performing the steps described in the Entering Relay Diagnostic Mode section of this chapter then go to Step2 2 Ensure that the Diagnostic Menu is selected to TARGET Upper Case TARGET LED TEST output input led TARGET V W button disp V W com1 com2 com3 clock V W led cal factor...

Page 360: ... factory If BUTTON is not selected Upper Case then use the Right Left arrow pushbuttons to select BUTTON 3 Press ENTER The following is displayed BUTTON TEST 0 NOTE Pressing the EXIT pushbutton will exit from this test and therefore should be last pushbutton tested If it is pushed before this test sequence is completed the test may be restarted by pushing ENTER Notice that the word EXIT is display...

Page 361: ...EXIT PRESS EXIT TO EXIT DIAGNOSTIC MODE is displayed then press EXIT a second time COM1 COM2 Loopback Test The COM1 LOOPBACK TEST menu allows the user to test the front panel RS 232 port COM2 LOOPBACKTEST menu tests the rear panel RS 232 port A loopback plug is required for this test The required loopback plug consists of a DB9P connector male with pin 2 RX connected to pin 3 TX and pin 7 RTS conn...

Page 362: ...2 Wire The COM3 Echo Test 2 Wire allows the user to test the RS 485 rear terminal connections for proper operation NOTE This test requires a PC with an RS 485 converter and terminal emulator software installed 1 If the relay is already in the Diagnostic Mode then go to Step 2 If the relay is NOT in the Diagnostic Mode then enter the relay diagnostic mode by performing the steps described in the En...

Page 363: ...n press EXIT a second time Clock ON OFF This feature provides the user with the ability to either start or stop the clock 1 If the relay is already in the Diagnostic Mode then go to Step 2 If the relay is NOT in the Diagnostic Mode then enter the relay diagnostic mode by performing the steps described in the Entering Relay Diagnostic Mode section of this chapter then go to Step2 2 Ensure that the ...

Page 364: ...tic Mode then go to Step 2 If the relay is NOT in the Diagnostic Mode then enter the relay diagnostic mode by performing the steps described in the Entering Relay Diagnostic Mode section of this chapter then go to Step2 2 Ensure that the Diagnostic Menu is selected to FLASH RELAY OK LED Upper Case FLASH RELAY OK LED output input led target button disp com1 com2 com3 clock LED cal factory If LED to...

Page 365: ... pushbuttons to select 60_HZ 5 Press ENTER the following will be displayed 60 HZ CALIBRATION NOM_F 3rdh_F 64s_f 6 Ensure that NOM_F is selected Upper Case If NOM_F is not selected Upper Case then use the Right Left arrow pushbuttons to select NOM_F 7 Press ENTER the following will be displayed CONNECT REFERENCE INPUTS PRESS ENTER TO CALIBRATE 8 Connect VA VB VC VN VX 120 0 0 01 V at 0 phase See Fi...

Page 366: ...4 Ensure that the 60 HZ Calibration Menu is selected to 60_HZ Upper Case If 60_HZ is not selected Upper Case then use the Right Left arrow pushbuttons to select 60_HZ 5 Press ENTER the following will be displayed 60 HZ CALIBRATION nom_f 3RDH_F 64s_f 6 Ensure that 3RDH_F is selected Upper Case If 3RDH_F is not selected Upper Case then use the Right Left arrow pushbuttons to select 3RDH_F 7 Press EN...

Page 367: ...n use the Right Left arrow pushbuttons to select CAL 3 Press ENTER the following will be displayed 60 HZ CALIBRATION 60_HZ field_gnd 4 Ensure that the 60 HZ Calibration Menu is selected to 60_HZ Upper Case If 60_HZ is not selected Upper Case then use the Right Left arrow pushbuttons to select 60_HZ 5 Press ENTER the following will be displayed 60 HZ CALIBRATION nom_f 3rdh_f 64S_F 6 Ensure that 64S...

Page 368: ...CAL is not selected Upper Case then use the Right Left arrow pushbuttons to select CAL 4 Press ENTER the following will be displayed 60 HZ CALIBRATION 60_HZ field_gnd 5 Ensure that the 60 HZ Calibration Menu is selected to FIELD_GND Upper Case If FIELD_GND is not selected Upper Case thenusetheRightarrowpushbutton to select FIELD_GND 6 Press ENTER the following will be displayed CONNECT 1 KOHM REF ...

Page 369: ...M 3425A Instruction Book 6 82 Figure 6 14 Voltage Input Configuration Figure 6 15 Voltage Input Configuration Hot Neutral Voltage Input VA 39 38 41 40 43 42 VB VC Figure 6 16 Voltage Input Configuration ...

Page 370: ...menus This form records definition of the parameters necessary for communication with the relay as well as access codes user logo identifying lines date time setting and front panel display operation The functional Configuration Record Form reproduces the Configure Relay menus including the Setup Relay submenu which is accessible via S 3400 IPScom Communication Software or the optional M 3931 HMI ...

Page 371: ...14 13 12 11 10 9 8 7 6 5 4 3 2 1 18 3 2 1 21 24 Inv Time 2 1 24 Def Time 25S 25D 2 1 27 2 27TN 3 2 1 32 46 Def Time 46 Inv Time 2 1 49 2 1 50 2 1 40 50BF 2 1 50DT 50N 50 27 51N 51V 3 2 1 59 59D 3 2 1 59N 2 1 59X 3 1 NOTE The M 3425A is shipped with all functions disabled Table A 1 Relay Configuration page 1 of 2 ...

Page 372: ...7 6 5 4 3 2 1 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 18 81 87GD BM TCM 1 2 3 4 60FL 64F 1 2 64B 64S 67N Def Time 67N Inv Time 78 81A 1 2 3 4 5 6 81R 1 2 87 1 2 IPS 1 2 3 4 5 6 NOTE The M 3425A is shipped with all functions disabled Table A 1 Relay Configuration page 2 of 2 ...

Page 373: ...50 Comm Response Time Delay _____ 0 msec 250 msecs 100 COM 3 Baud Rate 9600 Fixed Data Bit 8 Fixed Parity NONE Fixed Stop Bit 1 Fixed Protocol o BECO o MODBUS Dead Sync Time _____ 1 msec 3000 msecs 50 Comm Response Time Delay _____ 0 msec 250 msecs 100 Communication Address _____ 1 Communication COMM Access Code __________ 9999 ETHERNET Ethernet Board o Enable o Disable DHCP Protocol o Enable o Di...

Page 374: ... Vx Ratio ________ 1 1 0 6550 0 1 0 C T Phase Ratio ________ 1 1 65500 1600 0 C T Neutral Ratio ________ 1 1 65500 1600 0 I O SETUP Input Active State Open o 1 o 2 o 3 o 4 o 5 o 6 o 7 o 8 o 9 o 10 o 11 o 12 o 13 o 14 Input Active State Close o 1 o 2 o 3 o 4 o 5 o 6 o 7 o 8 o 9 o 10 o 11 o 12 o 13 o 14 Latched Outputs o 1 o 2 o 3 o 4 o 5 o 6 o 7 o 8 o 9 o 10 o 11 o 12 o 13 o 14 o 15 o 16 o 17 o 18 ...

Page 375: ... Cycles 30 Output 4 _____ 2 8160 Cycles 30 Output 16 _____ 2 8160 Cycles 30 Output 5 _____ 2 8160 Cycles 30 Output 17 _____ 2 8160 Cycles 30 Output 6 _____ 2 8160 Cycles 30 Output 18 _____ 2 8160 Cycles 30 Output 7 _____ 2 8160 Cycles 30 Output 19 _____ 2 8160 Cycles 30 Output 8 _____ 2 8160 Cycles 30 Output 20 _____ 2 8160 Cycles 30 Output 9 _____ 2 8160 Cycles 30 Output 21 _____ 2 8160 Cycles 30...

Page 376: ... Blocking Inputs o 1 o 2 o 3 o 4 o 5 o 6 o 7 o 8 o 9 o 10 o 11 o 12 o 13 o 14 21 2 o Disable o Enable Circle Diameter _____ 0 1 100 0 Ohm 10 0 Offset _____ 100 0 100 0 Ohm 0 0 Impedance Angle _____ 0 90 Degree 45 Load Encr Angle _____ 1 90 Degree 45 o Disable o Enable Load Encr R Reach _____ 0 1 100 Ohm 10 0 Time Delay _____ 1 8160 Cycles 30 Overcurrent SV _____ 0 1 20 0 A o Disable o Enable o Out...

Page 377: ...y _____ 1 8160 Cycles 30 I O Selection Outputs o 1 o 2 o 3 o 4 o 5 o 6 o 7 o 8 o 9 o 10 o 11 o 12 o 13 o 14 o 15 o 16 o 17 o 18 o 19 o 20 o 21 o 22 o 23 Blocking Inputs o 1 o 2 o 3 o 4 o 5 o 6 o 7 o 8 o 9 o 10 o 11 o 12 o 13 o 14 24 Volts Hz Overexcitation Definite Time 1 Definite Time 1 o Disable o Enable Pickup _____ 100 200 120 Time Delay _____ 30 8160 Cycles 30 I O Selection Outputs o 1 o 2 o ...

Page 378: ... Cycles 30 Reset Rate _____ 1 999 Sec 10 Inverse Time Curves o 1 o 2 o 3 o 4 I O Selection Outputs o 1 o 2 o 3 o 4 o 5 o 6 o 7 o 8 o 9 o 10 o 11 o 12 o 13 o 14 o 15 o 16 o 17 o 18 o 19 o 20 o 21 o 22 o 23 Blocking Inputs o 1 o 2 o 3 o 4 o 5 o 6 o 7 o 8 o 9 o 10 o 11 o 12 o 13 o 14 25 Sync Check 25S o Disable o Enable Phase Angle Window _____ 0 90 Degrees 45 Upper Voltage Limit _____ 60 140 V 140 L...

Page 379: ... Time Delay _____ 1 8160 Cycles 30 Enable o Dead V1 Hot VX o Hot V1 Dead VX o Dead V1 Dead VX Dead Input Enable o 1 o 2 o 3 o 4 o 5 o 6 o 7 o 8 o 9 o 10 o 11 o 12 o 13 o 14 I O Selection Outputs o 1 o 2 o 3 o 4 o 5 o 6 o 7 o 8 o 9 o 10 o 11 o 12 o 13 o 14 o 15 o 16 o 17 o 18 o 19 o 20 o 21 o 22 o 23 Blocking Inputs o 1 o 2 o 3 o 4 o 5 o 6 o 7 o 8 o 9 o 10 o 11 o 12 o 13 o 14 27 Phase Undervoltage ...

Page 380: ... _____ 1 8160 Cycles 30 I O Selection Outputs o 1 o 2 o 3 o 4 o 5 o 6 o 7 o 8 o 9 o 10 o 11 o 12 o 13 o 14 o 15 o 16 o 17 o 18 o 19 o 20 o 21 o 22 o 23 Blocking Inputs o 1 o 2 o 3 o 4 o 5 o 6 o 7 o 8 o 9 o 10 o 11 o 12 o 13 o 14 27TN Third Harmonic Undervoltage Neutral 27TN 1 o Disable o Enable Pickup _____ 0 10 14 00 V 10 00 Pos Seq Voltage Block _____ 5 180 V 120 o Disable o Enable Forward Power...

Page 381: ...s Seq Voltage Block _____ 5 180 V 120 o Disable o Enable Forward Power Block _____ 0 01 1 00 PU 0 50 o Disable o Enable Reverse Power Block _____ 1 00 0 01 PU 0 50 o Disable o Enable Lead VAr Block _____ 1 00 0 01 PU 0 50 o Disable o Enable Lag VAr Block _____ 0 01 1 00 PU 0 50 o Disable o Enable Lead Power Factor Block _____ 0 01 1 0 Lead 0 50 o Disable o Enable Lag Power Factor Block _____ 0 01 ...

Page 382: ...2 o 13 o 14 32 2 o Disable o Enable Pickup _____ 3 000 3 000 PU 0 100 Time Delay _____ 1 8160 Cycles 30 Over Under Power o Over o Under Target LED o Disable o Enable I O Selection Outputs o 1 o 2 o 3 o 4 o 5 o 6 o 7 o 8 o 9 o 10 o 11 o 12 o 13 o 14 o 15 o 16 o 17 o 18 o 19 o 20 o 21 o 22 o 23 Blocking Inputs o 1 o 2 o 3 o 4 o 5 o 6 o 7 o 8 o 9 o 10 o 11 o 12 o 13 o 14 32 3 o Disable o Enable Picku...

Page 383: ...set _____ 50 0 50 0 Ohm 0 0 Time Delay _____ 1 8160 Cycles 30 I O Selection Outputs o 1 o 2 o 3 o 4 o 5 o 6 o 7 o 8 o 9 o 10 o 11 o 12 o 13 o 14 o 15 o 16 o 17 o 18 o 19 o 20 o 21 o 22 o 23 Blocking Inputs o 1 o 2 o 3 o 4 o 5 o 6 o 7 o 8 o 9 o 10 o 11 o 12 o 13 o 14 40 1 VC o Disable o Enable Time Delay _____ 1 8160 Cycles 30 I O Selection Outputs o 1 o 2 o 3 o 4 o 5 o 6 o 7 o 8 o 9 o 10 o 11 o 12...

Page 384: ...o 7 o 8 o 9 o 10 o 11 o 12 o 13 o 14 o 15 o 16 o 17 o 18 o 19 o 20 o 21 o 22 o 23 Blocking Inputs o 1 o 2 o 3 o 4 o 5 o 6 o 7 o 8 o 9 o 10 o 11 o 12 o 13 o 14 40 2 VC o Disable o Enable Time Delay _____ 1 8160 Cycles 30 I O Selection Outputs o 1 o 2 o 3 o 4 o 5 o 6 o 7 o 8 o 9 o 10 o 11 o 12 o 13 o 14 o 15 o 16 o 17 o 18 o 19 o 20 o 21 o 22 o 23 Blocking Inputs o 1 o 2 o 3 o 4 o 5 o 6 o 7 o 8 o 9 ...

Page 385: ...o 21 o 22 o 23 Blocking Inputs o 1 o 2 o 3 o 4 o 5 o 6 o 7 o 8 o 9 o 10 o 11 o 12 o 13 o 14 Inverse Time o Disable o Enable Pickup _____ 3 100 50 Time Dial _____ 1 95 50 Maximum Time _____ 600 65500 Cycles 1000 Reset Time _____ 1 600 Second 10 I O Selection Outputs o 1 o 2 o 3 o 4 o 5 o 6 o 7 o 8 o 9 o 10 o 11 o 12 o 13 o 14 o 15 o 16 o 17 o 18 o 19 o 20 o 21 o 22 o 23 Blocking Inputs o 1 o 2 o 3 ...

Page 386: ...999 9 min 10 0 Max Overload Current _____ 1 00 10 00 A 5 00 I O Selection Outputs o 1 o 2 o 3 o 4 o 5 o 6 o 7 o 8 o 9 o 10 o 11 o 12 o 13 o 14 o 15 o 16 o 17 o 18 o 19 o 20 o 21 o 22 o 23 Blocking Inputs o 1 o 2 o 3 o 4 o 5 o 6 o 7 o 8 o 9 o 10 o 11 o 12 o 13 o 14 50 Instantaneous Phase Overcurrent 50 1 o Disable o Enable Pickup _____ 0 1 240 0 A 5 0 Time Delay _____ 1 8160 Cycles 30 I O Selection...

Page 387: ...o 3 o 4 o 5 o 6 o 7 o 8 o 9 o 10 o 11 o 12 o 13 o 14 50BF Breaker Failure 50BF o Disable o Enable Phase Current _____ 0 10 10 00 A 5 0 Phase Current Select o Disable o Enable Neutral Current _____ 0 10 10 00 A 5 0 Neutral Current Select o Disable o Enable Time Delay _____ 1 8160 Cycles 30 I O Selection Outputs o 1 o 2 o 3 o 4 o 5 o 6 o 7 o 8 o 9 o 10 o 11 o 12 o 13 o 14 o 15 o 16 o 17 o 18 o 19 o ...

Page 388: ... 16 o 17 o 18 o 19 o 20 o 21 o 22 o 23 Blocking Inputs o 1 o 2 o 3 o 4 o 5 o 6 o 7 o 8 o 9 o 10 o 11 o 12 o 13 o 14 50DT 2 o Disable o Enable Pickup A _____ 0 20 240 00 A 5 0 Pickup B _____ 0 20 240 00 A 5 0 Pickup C _____ 0 20 240 00 A 5 0 Time Delay _____ 1 8160 Cycles 30 I O Selection Outputs o 1 o 2 o 3 o 4 o 5 o 6 o 7 o 8 o 9 o 10 o 11 o 12 o 13 o 14 o 15 o 16 o 17 o 18 o 19 o 20 o 21 o 22 o ...

Page 389: ... 1 o 2 o 3 o 4 o 5 o 6 o 7 o 8 o 9 o 10 o 11 o 12 o 13 o 14 50 27 Inadvertent Energizing 50 27 o Disable o Enable 50 Overcurrent Pickup _____ 0 50 15 0 A 5 00 27 Undervoltage Pickup _____ 5 130 V 100 Pickup Delay _____ 1 8160 Cycles 30 Drop out Delay _____ 1 8160 Cycles 30 I O Selection Outputs o 1 o 2 o 3 o 4 o 5 o 6 o 7 o 8 o 9 o 10 o 11 o 12 o 13 o 14 o 15 o 16 o 17 o 18 o 19 o 20 o 21 o 22 o 2...

Page 390: ... 1 o 2 o 3 o 4 o 5 o 6 o 7 o 8 o 9 o 10 o 11 o 12 o 13 o 14 51V Inverse Time Phase Overcurrent 51V o Disable o Enable Pickup _____ 0 50 12 00 A 5 00 Time Dial _____ 0 5 11 0 5 0 Inverse Time Curves o BECO Definite Time o BECO Inverse o BECO Very Inverse o BECO Extremely Inverse o IEC Inverse o IEC Very Inverse o IEC Extremely Inverse o IEC Long Time Inverse o IEEE Moderately Inverse o IEEE Very In...

Page 391: ...tive Sequence o Negative Sequence Pickup _____ 5 180 V 120 Time Delay _____ 1 8160 Cycles 30 I O Selection Outputs o 1 o 2 o 3 o 4 o 5 o 6 o 7 o 8 o 9 o 10 o 11 o 12 o 13 o 14 o 15 o 16 o 17 o 18 o 19 o 20 o 21 o 22 o 23 Blocking Inputs o 1 o 2 o 3 o 4 o 5 o 6 o 7 o 8 o 9 o 10 o 11 o 12 o 13 o 14 59 3 o Disable o Enable Input Voltage Selection o Phase o Positive Sequence o Negative Sequence Pickup...

Page 392: ...nputs o 1 o 2 o 3 o 4 o 5 o 6 o 7 o 8 o 9 o 10 o 11 o 12 o 13 o 14 59N Neutral Overvoltage 59N 1 o Disable o Enable Pickup _____ 5 0 180 0 V 120 0 Time Delay _____ 1 8160 Cycles 30 Neg Seq Voltage Inhibit _____ 1 0 100 0 10 0 o Disable o Enable Zero Seq Voltage Inhibit _____ 1 0 100 0 10 0 o Disable o Enable Zero Seq Voltage Selection o 3V0 o VX I O Selection Outputs o 1 o 2 o 3 o 4 o 5 o 6 o 7 o ...

Page 393: ... o 15 o 16 o 17 o 18 o 19 o 20 o 21 o 22 o 23 Blocking Inputs o 1 o 2 o 3 o 4 o 5 o 6 o 7 o 8 o 9 o 10 o 11 o 12 o 13 o 14 59N 3 o Disable o Enable Pickup _____ 5 0 180 0 V 120 0 Time Delay _____ 1 8160 Cycles 30 Neg Seq Voltage Inhibit _____ 1 0 100 0 10 0 o Disable o Enable Zero Seq Voltage Inhibit _____ 1 0 100 0 10 0 o Disable o Enable Zero Seq Voltage Selection o 3V0 o VX I O Selection Output...

Page 394: ...on Outputs o 1 o 2 o 3 o 4 o 5 o 6 o 7 o 8 o 9 o 10 o 11 o 12 o 13 o 14 o 15 o 16 o 17 o 18 o 19 o 20 o 21 o 22 o 23 Blocking Inputs o 1 o 2 o 3 o 4 o 5 o 6 o 7 o 8 o 9 o 10 o 11 o 12 o 13 o 14 60FL Fuse Loss Detection 60FL o Disable o Enable Time Delay _____ 1 8160 Cycles 30 Three Phase Fuse Loss Detection o Disable o Enable Input Initiate o FL o 1 o 2 o 3 o 4 o 5 o 6 o 7 o 8 o 9 o 10 o 11 o 12 o...

Page 395: ...0 KOhm 50 Time Delay _____ 1 8160 Cycles 30 I O Selection Outputs o 1 o 2 o 3 o 4 o 5 o 6 o 7 o 8 o 9 o 10 o 11 o 12 o 13 o 14 o 15 o 16 o 17 o 18 o 19 o 20 o 21 o 22 o 23 Blocking Inputs o 1 o 2 o 3 o 4 o 5 o 6 o 7 o 8 o 9 o 10 o 11 o 12 o 13 o 14 64B o Disable o Enable Pickup _____ 0 5000 mV Time Delay _____ 1 8160 Cycles 30 I O Selection Outputs o 1 o 2 o 3 o 4 o 5 o 6 o 7 o 8 o 9 o 10 o 11 o 1...

Page 396: ...o 7 o 8 o 9 o 10 o 11 o 12 o 13 o 14 o 15 o 16 o 17 o 18 o 19 o 20 o 21 o 22 o 23 Blocking Inputs o 1 o 2 o 3 o 4 o 5 o 6 o 7 o 8 o 9 o 10 o 11 o 12 o 13 o 14 67N Residual Directional Overcurrent 67N Definite Time o Disable o Enable Pickup _____ 0 5 240 A 5 0 Time Delay _____ 1 8160 Cycles 30 Directional Element o Disable o Enable I O Selection Outputs o 1 o 2 o 3 o 4 o 5 o 6 o 7 o 8 o 9 o 10 o 11...

Page 397: ... o 21 o 22 o 23 Blocking Inputs o 1 o 2 o 3 o 4 o 5 o 6 o 7 o 8 o 9 o 10 o 11 o 12 o 13 o 14 Setting Max Sensitivity Angle _____ 0 359 Degree 0 Operating Current o 3I0 o IN Polarizing Quantity o V0 Calculated o VN o VX 78 Out of Step 78 o Disable o Enable Circle Diameter _____ 0 1 100 0 Ohm 10 0 Offset _____ 100 0 100 0 Ohm 0 0 Blinder Impedance _____ 0 1 50 0 Ohm 10 0 Impedance Angle _____ 0 90 D...

Page 398: ..._ 50 00 67 00 Hz 65 00 Time Delay _____ 3 65500 Cycles I O Selection Outputs o 1 o 2 o 3 o 4 o 5 o 6 o 7 o 8 o 9 o 10 o 11 o 12 o 13 o 14 o 15 o 16 o 17 o 18 o 19 o 20 o 21 o 22 o 23 Blocking Inputs o 1 o 2 o 3 o 4 o 5 o 6 o 7 o 8 o 9 o 10 o 11 o 12 o 13 o 14 81 3 o Disable o Enable Pickup _____ 50 00 67 00 Hz 65 00 Time Delay _____ 3 65500 Cycles I O Selection Outputs o 1 o 2 o 3 o 4 o 5 o 6 o 7 ...

Page 399: ...ow Band Pickup _____ 50 00 67 00 Hz 65 00 Time Delay _____ 3 360000 Cycles 30 I O Selection Outputs o 1 o 2 o 3 o 4 o 5 o 6 o 7 o 8 o 9 o 10 o 11 o 12 o 13 o 14 o 15 o 16 o 17 o 18 o 19 o 20 o 21 o 22 o 23 Blocking Inputs o 1 o 2 o 3 o 4 o 5 o 6 o 7 o 8 o 9 o 10 o 11 o 12 o 13 o 14 81A 2 o Disable o Enable High Band Pickup _____ 50 00 67 00 Hz 65 00 Low Band Pickup _____ 50 00 67 00 Hz 65 00 Time ...

Page 400: ...Hz 65 00 Low Band Pickup _____ 50 00 67 00 Hz 65 00 Time Delay _____ 3 360000 Cycles 30 I O Selection Outputs o 1 o 2 o 3 o 4 o 5 o 6 o 7 o 8 o 9 o 10 o 11 o 12 o 13 o 14 o 15 o 16 o 17 o 18 o 19 o 20 o 21 o 22 o 23 Blocking Inputs o 1 o 2 o 3 o 4 o 5 o 6 o 7 o 8 o 9 o 10 o 11 o 12 o 13 o 14 81A 5 o Disable o Enable High Band Pickup _____ 50 00 67 00 Hz 65 00 Low Band Pickup _____ 50 00 67 00 Hz 6...

Page 401: ...sable o Enable Pickup _____ 0 10 20 00 Hz 1 00 Time Delay _____ 3 8160 Cycles 30 I O Selection Outputs o 1 o 2 o 3 o 4 o 5 o 6 o 7 o 8 o 9 o 10 o 11 o 12 o 13 o 14 o 15 o 16 o 17 o 18 o 19 o 20 o 21 o 22 o 23 Blocking Inputs o 1 o 2 o 3 o 4 o 5 o 6 o 7 o 8 o 9 o 10 o 11 o 12 o 13 o 14 81R 2 o Disable o Enable Pickup _____ 0 10 20 00 Hz 1 00 Time Delay _____ 3 8160 Cycles 30 I O Selection Outputs o...

Page 402: ...21 o 22 o 23 Blocking Inputs o 1 o 2 o 3 o 4 o 5 o 6 o 7 o 8 o 9 o 10 o 11 o 12 o 13 o 14 87 2 o Disable o Enable Pickup _____ 0 20 3 00 A 1 0 Time Delay _____ 1 8160 Cycles 30 Percent Slope _____ 1 100 50 I O Selection Outputs o 1 o 2 o 3 o 4 o 5 o 6 o 7 o 8 o 9 o 10 o 11 o 12 o 13 o 14 o 15 o 16 o 17 o 18 o 19 o 20 o 21 o 22 o 23 Blocking Inputs o 1 o 2 o 3 o 4 o 5 o 6 o 7 o 8 o 9 o 10 o 11 o 12...

Page 403: ...0 A 1 00 Pickup Delay _____ 1 8160 Cycles 30 CT Ratio Correction _____ 0 10 7 99 1 00 I O Selection Outputs o 1 o 2 o 3 o 4 o 5 o 6 o 7 o 8 o 9 o 10 o 11 o 12 o 13 o 14 o 15 o 16 o 17 o 18 o 19 o 20 o 21 o 22 o 23 Blocking Inputs o 1 o 2 o 3 o 4 o 5 o 6 o 7 o 8 o 9 o 10 o 11 o 12 o 13 o 14 Figure A 3 System Setpoints and Settings page 28 of 38 ...

Page 404: ...7GD o IPSL 1 o IPSL 2 o IPSL 3 o IPSL 4 o IPSL 5 o IPS 6 o BM o TC Initiating Function Timeout o 21 1 o 21 2 o 21 3 o 24DT 1 o 24DT 2 o 24IT o 25D o 25S o 27 1 o 27 2 o 27 3 o 27TN 1 o 27TN 2 o 32 1 o 32 2 o 32 3 o 40 1 o 40 2 o 40VC 1 o 40VC 2 o 46DT o 46IT o 49 1 o 49 2 o 50 1 o 50 2 o 50BF o 50DT 1 o 50DT 2 o 50N o 50 27 o 51N o 51V o 59 1 o 59 2 o 59 3 o 59X 1 o 59X 2 o 60FL o 64B o 64F 1 o 64...

Page 405: ...ch o 1 o 2 o 3 o 4 o Not Activated IPSLogic 2 o Disable o Enable Initiating Outputs o 1 o 2 o 3 o 4 o 5 o 6 o 7 o 8 o 9 o 10 o 11 o 12 o 13 o 14 o 15 o 16 o 17 o 18 o 19 o 20 o 21 o 22 o 23 Initiating Outputs Logic Gate o OR o AND Initiating Function Pickup o 21 1 o 21 2 o 21 3 o 24DT 1 o 24DT 2 o 24IT o 25D o 25S o 27 1 o 27 2 o 27 3 o 27TN 1 o 27TN 2 o 32 1 o 32 2 o 32 3 o 40 1 o 40 2 o 40VC 1 o...

Page 406: ...ate o OR o AND Initiating Function Pickup Timeout Logic Gate o None o NOT Initiating Inputs o 1 o 2 o 3 o 4 o 5 o 6 o 7 o 8 o 9 o 10 o 11 o 12 o 13 o 14 Initiating Inputs Logic Gate o OR o AND Initiate via Communication Point o Blocking Inputs o FL o 1 o 2 o 3 o 4 o 5 o 6 o 7 o 8 o 9 o 10 o 11 o 12 o 13 o 14 Blocking Inputs Logic Gate o OR o AND Block via Communication Point o Initiating Outputs F...

Page 407: ...4 o IPSL 5 o IPS 6 o BM o TC Initiating Function Timeout o 21 1 o 21 2 o 21 3 o 24DT 1 o 24DT 2 o 24IT o 25D o 25S o 27 1 o 27 2 o 27 3 o 27TN 1 o 27TN 2 o 32 1 o 32 2 o 32 3 o 40 1 o 40 2 o 40VC 1 o 40VC 2 o 46DT o 46IT o 49 1 o 49 2 o 50 1 o 50 2 o 50BF o 50DT 1 o 50DT 2 o 50N o 50 27 o 51N o 51V o 59 1 o 59 2 o 59 3 o 59X 1 o 59X 2 o 60FL o 64B o 64F 1 o 64F 2 o 64S o 67N DT o 67N IT o 78 o 81 ...

Page 408: ...isable o Enable Initiating Outputs o 1 o 2 o 3 o 4 o 5 o 6 o 7 o 8 o 9 o 10 o 11 o 12 o 13 o 14 o 15 o 16 o 17 o 18 o 19 o 20 o 21 o 22 o 23 Initiating Outputs Logic Gate o OR o AND Initiating Function Pickup o 21 1 o 21 2 o 21 3 o 24DT 1 o 24DT 2 o 24IT o 25D o 25S o 27 1 o 27 2 o 27 3 o 27TN 1 o 27TN 2 o 32 1 o 32 2 o 32 3 o 40 1 o 40 2 o 40VC 1 o 40VC 2 o 46DT o 46IT o 49 1 o 49 2 o 50 1 o 50 2...

Page 409: ... Logic Gate o OR o AND Initiating Function Pickup Timeout Logic Gate o None o NOT Initiating Inputs o 1 o 2 o 3 o 4 o 5 o 6 o 7 o 8 o 9 o 10 o 11 o 12 o 13 o 14 Initiating Inputs Logic Gate o OR o AND Initiate via Communication Point o Blocking Inputs o FL o 1 o 2 o 3 o 4 o 5 o 6 o 7 o 8 o 9 o 10 o 11 o 12 o 13 o 14 Blocking Inputs Logic Gate o OR o AND Block via Communication Point o Initiating O...

Page 410: ...L 5 o IPS 6 o BM o TC Initiating Function Timeout o 21 1 o 21 2 o 21 3 o 24DT 1 o 24DT 2 o 24IT o 25D o 25S o 27 1 o 27 2 o 27 3 o 27TN 1 o 27TN 2 o 32 1 o 32 2 o 32 3 o 40 1 o 40 2 o 40VC 1 o 40VC 2 o 46DT o 46IT o 49 1 o 49 2 o 50 1 o 50 2 o 50BF o 50DT 1 o 50DT 2 o 50N o 50 27 o 51N o 51V o 59 1 o 59 2 o 59 3 o 59X 1 o 59X 2 o 60FL o 64B o 64F 1 o 64F 2 o 64S o 67N DT o 67N IT o 78 o 81 1 o 81 ...

Page 411: ...c 6 o Disable o Enable Initiating Outputs o 1 o 2 o 3 o 4 o 5 o 6 o 7 o 8 o 9 o 10 o 11 o 12 o 13 o 14 o 15 o 16 o 17 o 18 o 19 o 20 o 21 o 22 o 23 Initiating Outputs Logic Gate o OR o AND Initiating Function Pickup o 21 1 o 21 2 o 21 3 o 24DT 1 o 24DT 2 o 24IT o 25D o 25S o 27 1 o 27 2 o 27 3 o 27TN 1 o 27TN 2 o 32 1 o 32 2 o 32 3 o 40 1 o 40 2 o 40VC 1 o 40VC 2 o 46DT o 46IT o 49 1 o 49 2 o 50 1...

Page 412: ...o 4 o 5 o 6 o 7 o 8 o 9 o 10 o 11 o 12 o 13 o 14 Initiating Inputs Logic Gate o OR o AND Initiate via Communication Point o Blocking Inputs o FL o 1 o 2 o 3 o 4 o 5 o 6 o 7 o 8 o 9 o 10 o 11 o 12 o 13 o 14 Blocking Inputs Logic Gate o OR o AND Block via Communication Point o Initiating Outputs Function Pickup Function Timeout Logic Gate o OR o AND Initiating Outputs Function Pickup Function Timeou...

Page 413: ... 15 o 16 o 17 o 18 o 19 o 20 o 21 o 22 o 23 Outputs o 1 o 2 o 3 o 4 o 5 o 6 o 7 o 8 o 9 o 10 o 11 o 12 o 13 o 14 o 15 o 16 o 17 o 18 o 19 o 20 o 21 o 22 o 23 Input Initiate o 1 o 2 o 3 o 4 o 5 o 6 o 7 o 8 o 9 o 10 o 11 o 12 o 13 o 14 Blocking Inputs o FL o 1 o 2 o 3 o 4 o 5 o 6 o 7 o 8 o 9 o 10 o 11 o 12 o 13 o 14 TC Trip Circuit Monitoring TC o Disable o Enable Time Delay _____ 1 8160 Cycles 30 I...

Page 414: ... are supported 5 Only the following MODBUS commands are supported a read holding register function 03 b read input register function 04 c force single coil function 05 d preset single register function 06 For detailed information on IPScom communications refer to Chapter 3 IPScom Serial Ports The relay has both front and rear panel RS 232 ports and a rear RS 485 port The front and rear panel RS 23...

Page 415: ...o Send Pin 8 DTR Data Terminal Ready Pin 4 Pin 4 DCD Data Carrier Detect Pin 1 GND Signal Ground Pin 5 Pin 5 15 V Pin 1 15 V Pin 9 TTL IRIG B Pin 6 Optional See Section 5 5 Circuit Board Switches and Jumpers 15 V 15 100 mA maximum Table B 1 Communication Port Signals NOTE Also see Tables 5 1 5 2 and Figure 5 12 Figure B 1 Null Modem Cable M 0423 ...

Page 416: ... DCE DTE REP OFF DCE DTE REP OFF RS 232 RS 232 Echo Cancel On 25 pin or 9 25 pin Straight Through Cable FOC FOC FOC FOC DYMEC Fiber Optic Link Repeater Slave 1 Address 1 Slave 2 Address 2 Slave 3 Address 3 9 25 pin Straight Through Cables PC Master Figure B 2 RS 232 Fiber Optic Network ...

Page 417: ...hould be mounted in the same rack If this is not possible fiber optics with the appropriate converters should be used for isolation NOTE Each address on the network must be unique Only the last physical slave on the network should have the termination resistor installed This may be completed externally or using a jumper internal to the unit See Section 5 5 Circuit Board Switches and Jumpers Figure...

Page 418: ... 19 DSP program load fail 20 DSP not running run mode code 21 DSP not running primary boot code 22 DSP DPRAM pattern test fail 23 EEPROM write verify error 26 WARNING calibration checksum mismatch warning 27 WARNING setpoint checksum mismatch warning 28 WARNING low battery BBRAM warning 29 Supply mux PGA running test fail 30 External DSP RAM test fail 31 Unrecognized INT1 code 32 Values update wat...

Page 419: ...rror results if an incompatible version of IPScom software is used This is a communication protocol error Contact a Beckwith Electric Co factory representative Read Invalid Checksum This error results if there are problems with the communication link or if the echo cancel function is used incorrectly Read Packet Timeout This error results when communication with the control is lost while attempt i...

Page 420: ... Expression for Time Delay Setting Operating time defined by IEC and ANSI IEEE t TD A t TD A MP 1 5 MP 1 B IEC Equation IEEE Equation IEEE Equation Constants are defined at TD of 5 Where t Relay operating time in seconds TD Time dial or time multiplier setting I Fault current level in secondary amps IP Tap or pickup current selected B Constant p Slope constant A Slope constant M I IP Setting Time ...

Page 421: ...D 2 M 3425A Instruction Book Figure D 1 Volts Hz 24 Inverse Curve Family 1 Inverse Square ...

Page 422: ...Inverse Time Curves Appendix D D 3 Figure D 2 Volts Hz 24 Inverse Family Curve 2 ...

Page 423: ...D 4 M 3425A Instruction Book Figure D 3 Volts Hz 24IT Inverse Curve Family 3 ...

Page 424: ...Inverse Time Curves Appendix D D 5 Figure D 4 Volts Hz 24IT Inverse Curve Family 4 ...

Page 425: ... 0 31999 1 15945 0 77301 0 98780 2 70 0 31057 1 06871 0 71334 0 90626 2 80 0 30189 0 99049 0 66127 0 83527 2 90 0 29392 0 92258 0 61554 0 77303 3 00 0 28666 0 86325 0 57515 0 71811 3 10 0 28007 0 81113 0 53930 0 66939 3 20 0 27415 0 76514 0 50733 0 62593 3 30 0 26889 0 72439 0 47870 0 58700 3 40 0 26427 0 68818 0 45297 0 55196 3 50 0 26030 0 65591 0 42977 0 52032 3 60 0 25697 0 62710 0 40879 0 491...

Page 426: ... 09070 10 00 0 20740 0 23422 0 14473 0 08474 10 50 0 20667 0 22923 0 14180 0 07943 11 00 0 20594 0 22442 0 13894 0 07469 11 50 0 20521 0 21979 0 13615 0 07046 12 00 0 20449 0 21536 0 13345 0 06667 12 50 0 20378 0 21115 0 13084 0 06329 13 00 0 20310 0 20716 0 12833 0 06026 13 50 0 20243 0 20341 0 12593 0 05755 14 00 0 20179 0 19991 0 12364 0 05513 14 50 0 20119 0 19666 0 12146 0 05297 15 00 0 20062...

Page 427: ...D 8 M 3425A Instruction Book Figure D 5 BECO Definite Time Overcurrent Curve ...

Page 428: ...Inverse Time Curves Appendix D D 9 Figure D 6 BECO Inverse Time Overcurrent Curve ...

Page 429: ...D 10 M 3425A Instruction Book Figure D 7 BECO Very Inverse Time Overcurrent Curve ...

Page 430: ...Inverse Time Curves Appendix D D 11 Figure D 8 BECO Extremely Inverse Time Overcurrent Curve ...

Page 431: ...D 12 M 3425A Instruction Book Figure D 9 IEC Curve 1 Inverse Curve 5 Curve 6 IEC Class A Standard Inverse IEC Class B Very Inverse ...

Page 432: ...Inverse Time Curves Appendix D D 13 Curve 5 Curve 6 Curve 7 IEC Class A Standard Inverse IEC Class B Very Inverse IEC Class C Extremely Inverse Figure D 10 IEC Curve 2 Very Inverse ...

Page 433: ...D 14 M 3425A Instruction Book Figure D 11 IEC Curve 3 Extremely Inverse Curve 6 Curve 7 Curve 8 s A verse IEC Class B Very Inverse IEC Class C Extremely Inverse IEC Class D Long Time Inverse ...

Page 434: ...Inverse Time Curves Appendix D D 15 Figure D 12 IEC Curve 4 Long Time Inverse Curve 7 Curve 8 B e IEC Class C Extremely Inverse IEC Class D Long Time Inverse ...

Page 435: ...D 16 M 3425A Instruction Book 0 01 0 1 1 10 100 1 10 100 Current in Multiples of Pickup Time in Seconds 15 12 10 8 6 5 4 3 Figure D 13 IEEE Moderately Inverse Time Overcurrent Curves ...

Page 436: ...Inverse Time Curves Appendix D D 17 0 01 0 1 1 10 100 1 10 100 Current in Multiples of Pickup Time in Seconds 15 12 10 8 6 5 4 3 Figure D 14 IEEE Very Inverse Time Overcurrent Curves ...

Page 437: ...D 18 M 3425A Instruction Book Figure D 15 IEEE Extremely Inverse Time Overcurrent Curves ...

Page 438: ...425A includes a removable lithium battery backed TIMEKEEPER module Beckwith Electric component U25 Figure 5 14 The TIMEKEEPER module is the M 3425A real time clock and also provides power to the unit s nonvolatile memory when power is not applied to the unit Layup of the M 3425A requires verifying that the system clock is stopped The steps necessary to verify system clock status are as follows CAU...

Page 439: ...are installed 2 Determine the unit power supply rating by observing the check box s below the PS terminals on the rear of the unit 3 Apply power to the unit consistent with the rating determined in Step 2 see Section 5 3 External Connections The unit will enter the selftest mode 4 Install IPScom Communications Software see Section 5 7 IPScom Communication Software Installation on a PC that include...

Page 440: ...6 Power Relay Loss of Field Relay and V T Fuse Loss Relay Menu Flow F 10 Figure F 7 Phase Distance and Field Ground Relay Menu Flow F 11 Figure F 8 Sync Check Relay and Breaker Monitor Menu Flow F 12 Figure F 9 Configure Relay Menu Flow F 13 Voltage Relay F 13 Current Relay F 14 Frequency Relay F 15 Volts Per Hz Relay F 15 Power Relay F 15 Loss of Field Relay F 15 V T Fuse Loss Relay F 16 Phase Di...

Page 441: ... T Phase Ratio F 19 V T Neutral Ratio F 19 V T VX Ratio F 19 C T Phase Ratio F 19 C T Neutral Ratio F 19 Figure F 12 Status F 20 Voltage Status F 20 Current Status F 20 Frequency Status F 20 V Hz Status F 20 Power Status F 20 Impedance Status F 20 Sync Check Status F 21 Breaker Monitor Accumulator Status F 21 81A Accumulators Status F 21 In Out Status F 21 Timer Status F 21 Relay Temperature F 22 ...

Page 442: ... Alter Access Codes F 26 User Control Number F 26 User Logo Line 1 F 27 User Logo Line 2 F 27 Clear Output Counters F 27 Clear Alarm Counters F 27 Date Time F 27 Clear Error Codes F 27 Ethernet Firmware Update F 27 Figure F 16 Diagnostic Mode F 28 Output Test Relay F 28 Input Test Status F 28 Status LED Test F 28 Target LED Test F 28 Button Test F 28 Display Test F 28 COM1 Loopback Test F 28 COM2 ...

Page 443: ... used only to make horizontally displayed choices These can be either menu choices or input value digit choices The previous choice or location in a menu is highlighted immediately E The ENTER pushbutton records the setting change whatever is in that screen when ENTER is pressed will be installed in memory and moves down within a menu The operator will notice that after the last menu item ENTER mo...

Page 444: ... Volts per Hertz Relay Power Relay Loss of Field Relay V T Fuse Loss Relay Phase Distance Relay Field Gnd Relay Stator Gnd Relay Sync Check Relay Breaker Mon Relay Trip Ckt Mon Relay IPSLogic Relay SETUP SYSTEM config SYS stat Input Activated Profiles Active Setpoint Profile Copy Active Profile Nominal Voltage Nominal Current V T Configuration Delta Y Transform Phase Rotation 59 27 Magnitude Selec...

Page 445: ... pos_seq NEG_SEQ 59 Neg Seq Volt 2 and 3 same as above 27TN 1 POS SEQ VOLT BLK disable ENABLE 27TN 1 POS SEQ VOLT BLK XXX Volts 27TN NEUTRL UNDERVOLT 2 same as above 27TN 1 PICKUP XX XX Volts 27TN 1 FWD POWER BLK X XX PU 27TN 1 FWD POWER BLK disable ENABLE 27TN 1 REV POWER BLK X XX PU 27TN 1 LEAD VAR BLK disable ENABLE 27TN 1 REV POWER BLK disable ENABLE 27TN 1 LEAD VAR BLK X XX PU 27TN 1 LAG VAR ...

Page 446: ...s 59N 20 Hz INJECTION MODE disable ENABLE 46DT DELAY XXXX Cycles 46DT PICKUP XXX 46IT MAX DELAY XXXXX Cycles 46IT PICKUP XXX 46IT RESET TIME XXX Seconds 46IT TIME DIAL XX 50 1 DELAY XXXX Cycles 50 1 PICKUP XXX X Amps 50 2 DELAY XXXX Cycles 50 2 PICKUP XXX X Amp 50 27 VOLTAGE CONTROL XXX Volts 50 27 PICKUP XX XX Amps 50 27 DROPOUT DELAY XXXX Cycles 50 27 PICKUP DELAY XXXX Cycles VOLTAGE RELAY ELEME...

Page 447: ...beinv bevinv 51V PICKUP XX XX Amps 51V TIME DIAL XX X 87 1 SLOPE XXX 87 1 PICKUP X XX Amps 87 1 DELAY XXXX Cycles 51V VOLTAGE CONTROL disable V_CNTL v_rstrnt 51V VOLTAGE CONTROL XXX Volts 87 2 SLOPE XXX 87 2 PICKUP X XX Amps 87 2 DELAY XXXX Cycles 87 PHASE CT CORRECTION X XX 67NDT DIR ELEMENT disable ENABLE 67NDT PICKUP XXX X Amps 67NDT DELAY XXXX Cycles 67NIT DIR ELEMENT disable ENABLE 67NIT PICK...

Page 448: ... 81A 1 HIGH BAND PICKUP XX XX Hz 81A SET FREQUENCY ACC SET reset 81A 1 DELAY XXXXXX Cycles 81A 1 LOW BAND PICKUP XX XX Hz 24 INV TIME VOLTS HERTZ def_v hz INV_V HZ 24 DEF TIME VOLTS HERTZ DEF_V HZ inv_v hz 24DT 1 DELAY XXXX Cycles 24DT 1 PICKUP XXX VOLTS PER HERTZ RELAY volt curr freq V HZ 24IT CURVE CRV 1 crv 2 crv 3 crv 4 24IT PICKUP XXX 24IT RESET RATE XXX Seconds 24IT TIME DIAL XXX 24DT 2 DELA...

Page 449: ...under 32 2 TARGET LED disable ENABLE 32 3 DELAY XXXX Cycles 32 3 PICKUP X XXX PU 32 3 UNDER OVER POWER OVER under 32 3 TARGET LED disable ENABLE 32 3 DIR POWER SENSING real REACTIVE 40 LOSS OF FIELD LOF 40 1 OFFSET XX X Ohms 40 1 DIAMETER XXX X Ohms LOSS OF FIELD RELAY pwr LOF fuse dist 40VC 1 DELAY WITH VC XXXX Cycles 40 1 DELAY XXXX Cycles 40 DIRECTIONAL ELEMENT XX Degrees 40 VOLTAGE CONTROL XXX...

Page 450: ...Ohms 78 TRIP ON MHO EXIT disable ENABLE 78 POLE SLIP COUNT XX slips 78 POLE SLIP RESET TIME XXXX Cycles 78 IMPEDANCE ANGLE XX Degrees 78 DELAY XXXX Cycles FIELD GROUND RELAY FIELD sync brkr 64B F FIELD GROUND FIELD 64F 1 DELAY XXXX Cycles 64F 1 PICKUP XXX kOhm 64F 2 DELAY XXXX Cycles 64F 2 PICKUP XXX kOhm 64B DELAY XXXX Cycles 64B PICKUP XXXX mV 64B F FREQUENCY X XX Hz V T FUSE LOSS RELAY ELEMENTS...

Page 451: ...i12 25D DEAD DELAY XXXX Cycles BREAKER MONITOR field sync BRKR SET BREAKER MONITORING BRKR prst clr BM INPUT INITIATE i6 i5 i4 i3 i2 i1 i11 i10 i9 i8 i7 i14 i13 i12 BM PICKUP XXXXX kA cycles BM DELAY XXXX X Cycles BM OUTPUT INITIATE o8 o7 o6 o5 o4 o3 o2 o1 o14 o13 o12 o11 o10 o9 o19 o18 o17 o16 o15 o23 o22 o21 o20 BM TIMING METHOD IT i2t PRESET ACCUMULATORS brkr PRST clr BRKR ACCUMULATOR XXXXX kA ...

Page 452: ... o7 o6 o5 o4 o3 o2 o1 o14 o13 o12 o11 o10 o9 o19 o18 o17 o16 o15 o23 o22 o21 o20 59N NEUTRAL OVERVOLT 2 3 same as above 59D BLOCK INPUT fl i6 i5 i4 i3 i2 i1 i11 i10 i9 i8 i7 i14 i13 i12 59D VOLTAGE DIFF disable ENABLE 59D RELAY OUTPUT o8 o7 o6 o5 o4 o3 o2 o1 o14 o13 o12 o11 o10 o9 o19 o18 o17 o16 o15 o23 o22 o21 o20 27TN 1 BLOCK INPUT fl i6 i5 i4 i3 i2 i1 i11 i10 i9 i8 i7 i14 i13 i12 27TN 1 NEUTRL...

Page 453: ...o3 o2 o1 o14 o13 o12 o11 o10 o9 o19 o18 o17 o16 o15 o23 o22 o21 o20 51N BLOCK INPUT fl i6 i5 i4 i3 i2 i1 i11 i10 i9 i8 i7 i14 i13 i12 51N NTRL OVERCURRENT INV disable ENABLE 51N RELAY OUTPUT o8 o7 o6 o5 o4 o3 o2 o1 o14 o13 o12 o11 o10 o9 o19 o18 o17 o16 o15 o23 o22 o21 o20 49 1 BLOCK INPUT fl i6 i5 i4 i3 i2 i1 i11 i10 i9 i8 i7 i14 i13 i12 49 1 STATOR OVERLOAD disable ENABLE 49 1 RELAY OUTPUT o8 o7...

Page 454: ... i5 i4 i3 i2 i1 i11 i10 i9 i8 i7 i14 i13 i12 24IT VOLTS HZ INV disable ENABLE 24IT RELAY OUTPUT o8 o7 o6 o5 o4 o3 o2 o1 o14 o13 o12 o11 o10 o9 o19 o18 o17 o16 o15 o23 o22 o21 o20 CONFIGURE RELAY POWER_RELAY 32 1 BLOCK INPUT fl i6 i5 i4 i3 i2 i1 i11 i10 i9 i8 i7 i14 i13 i12 32 1 DIRECTIONAL POWER disable ENABLE 32 1 RELAY OUTPUT o8 o7 o6 o5 o4 o3 o2 o1 o14 o13 o12 o11 o10 o9 o19 o18 o17 o16 o15 o23...

Page 455: ... o6 o5 o4 o3 o2 o1 o14 o13 o12 o11 o10 o9 o19 o18 o17 o16 o15 o23 o22 o21 o20 64F FIELD GROUND 2 same as above 64B BLOCK INPUT fl i6 i5 i4 i3 i2 i1 i11 i10 i9 i8 i7 i14 i13 i12 64B BRUSH LIFTOFF disable ENABLE 64B RELAY OUTPUT o8 o7 o6 o5 o4 o3 o2 o1 o14 o13 o12 o11 o10 o9 o19 o18 o17 o16 o15 o23 o22 o21 o20 CONFIGURE RELAY SYNC_CHECK_RELAY 25S BLOCK INPUT fl i6 i5 i4 i3 i2 i1 i11 i10 i9 i8 i7 i14...

Page 456: ...21 o20 CONFIGURE RELAY IPS_LOGIC_RELAY IPSL 1 BLOCK INPUT fl i6 i5 i4 i3 i2 i1 i11 i10 i9 i8 i7 i14 i13 i12 IPSL 1 IPS LOGIC disable ENABLE IPSL 1 RELAY OUTPUT o8 o7 o6 o5 o4 o3 o2 o1 o14 o13 o12 o11 o10 o9 o19 o18 o17 o16 o15 o23 o22 o21 o20 IPS LOGIC 2 3 4 5 6 same as above CONFIGURE RELAY BREAKER MONITOR ELEMENTS ON PREVIOUS PAGE CONFIGURE RELAY trpckt ipslog CONFIG SETUP SYSTEM STARTS ON NEXT ...

Page 457: ... WAIT NOMINAL VOLTAGE in ap cpy VOLT curr vt NOMINAL VOLTAGE XXX X Volts NOMINAL CURRENT in ap cpy volt CURR vt NOMINAL CURRENT X XX Amps V T CONFIGUTATION in ap cpy volt curr VT V T CONFIGUTATION LINE LINE line ground line gnd to line line DELTA Y TRANSFORM D_YTX rot mag splt DELTA Y TRANSFORM DIS delta_ab delta_ac PHASE ROTATION d_ytx ROT mag splt PHASE ROTATION a b c A B C CONFIGURE RELAY IPS L...

Page 458: ...6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 same as above ACTIVE INPUT STATE plse latch seal IN ACTIVE INPUT OPEN close i6 i5 i4 i3 i2 i1 i11 i10 i9 i8 i7 i14 i13 i12 A lower case i in this screen indicates that the Active Input State for that Input is Open An upper case I indicates that the Input Active Input State is Close V T PHASE RATIO VT vt n vt_x ct ct_n V T PHASE RATIO XXXX X 1 V T N...

Page 459: ...X Amps ZERO SEQUENCE CURRENT XXX X Amps F49 THERMAL CURRENT 1 XXX X Amps F49 THERMAL CURRENT 2 XXX X Amps PHASE CURRENT a XXX X b XXX X c XXX X DIFFERENTIAL CURRENT A XXX X B XXX X C XXX X FREQUENCY STATUS volt curr FREQ v hz FREQUENCY XX XX Hz RATE OF CHANGE FREQUENCY X XX Hz Sec V HZ STATUS volt curr freq V HZ VOLTS PER HERTZ X X POWER STATUS POWR imped sync brkr REAL POWER X XXX PU X XXX W REAC...

Page 460: ... ACC STATUS B XXXXX A cycles BREAKER MON ACC STATUS C XXXXX A cycles 81A ACCUMULATORS STATUS FREQ_ACC i o timer 81A 1 ACCUMULATOR STAT X Cycles 81A 1 ACC STARTUP TIME XX XXXX XX XX XX XXX 81A ACCUMULATORS STATUS 2 3 4 5 6 same as above 81A ACC STARTUP TIME 2 3 4 5 6 same as above IN OUT STATUS freq_acc I O timer fl i6 i5 i4 i3 i2 i1 X X X X X X X i11 i10 i9 i8 i7 X X X X X i14 i13 i12 X X X o8 o7 ...

Page 461: ...ER UP temp count POWERUP ERROR CODE LAST XX ERROR CODES ERROR check ERROR CODE 1 XX ERROR CODE 2 and 3 same as above RST LOCATION XXXX CBR XX BBR XX COMM ERROR CODE LAST XXXX COMM PACKET COUNTER XXXX COMM RX ERROR COUNTER XXXX SELFTEST COUNTER XXXX RESET COUNTER XX POWERLOSS COUNTER XX SETPOINTS CHECKSUM EECS XX BBCS XX CAL XX CHECKSUMS error CHECK CALIBRATION CHECKSUM EECS XX BBCS XX CAL XX ROM C...

Page 462: ...ER OSC_REC comm setup RECORD X ACTIVE XX XXX XXXX XX XX XX VIEW RECORD STATUS STAT clear setup OR RECORD X RECORD CLEARED CLEAR RECORDS RECORDS CLEARED CLEAR RECORDS stat CLEAR setup RECORDER PARTITIONS X RECORDER SETUP stat clear SETUP TRIGGER INPUTS i6 i5 i4 i3 i2 i1 i11 i10 i9 i8 i7 i14 i13 i12 TRIGGER OUTPUTS o8 o7 o6 o5 o4 o3 o2 o1 o14 o13 o12 o11 o10 o9 o19 o18 o17 o16 o15 o23 o22 o21 o20 PO...

Page 463: ... RATE baud_4800 BAUD_9600 COM2 SETUP com1 COM2 com3 com_adr COM2 DEAD SYNC TIME XX ms COM2 PROTOCOL beco2200 MODBUS COM2 PARITY NONE odd even COM2 STOP BITS X COM3 SETUP com1 com2 COM3 com_adr COM3 DEAD SYNC TIME XX ms COM3 PROTOCOL BECO2200 modbus COMMUNICATION ADDRESS com1 com2 com3 COM_ADR COMMUNICATION ADDRESS X RESPONSE TIME DELAY DLY accss eth eth_ip RESPONSE TIME DELAY XXX ms Figure F 13 Co...

Page 464: ...BLE TCP IP SETTINGS TCP prot DNCP PROTOCOL disable ENABLE IP ADDRESS X X X X NET MASK XXX XXX XXX X GATEWAY XXX XXX X X TCP IP SETTINGS tcp PROT SELECT PROTOCOL IEC61850 ETHERNET IP ADDRESS dly accss eth ETH_IP ETHERNET IP ADDRESS X X X X COMMUNICATION ON PREVIOUS PAGE SETUP UNIT STARTS ON NEXT PAGE Figure F 13 Communication 2 of 2 ...

Page 465: ...cess number ENTER ACCESS CODE LEVEL 1 level 2 level 3 ALTER ACCESS CODES vers sn ACCESS number LEVEL 1 XXXX ENTER ACCESS CODE level 1 LEVEL 2 level 3 LEVEL 2 XXXX ENTER ACCESS CODE level 1 level 2 LEVEL 3 LEVEL 3 XXXX USER CONTROL NUMBER XXXX USER CONTROL NUMBER vers sn access NUMBER COMMUNICATION ON PREVIOUS PAGE SETUP UNIT CONTINUES ON NEXT PAGE Figure F 14 Setup Unit 1 of 2 ...

Page 466: ...go1 logo2 out ALRM CLEAR ALARM COUNTER ALARM COUNTER CLEARED DATE TIME XX XXX XXXX XX XX XX DATE TIME TIME error eth_ver DATE TIME XX Year DATE TIME jun jul aug sep oct DATE TIME XX Date DATE TIME sun mon tue wed thu DATE TIME XX Hour DATE TIME XX Minutes DATE TIME XX Seconds CLEAR ERROR CODES PRESS ENTER KEY TO CLEAR CLEAR ERROR CODES time ERROR eth_ver CLEAR ERROR CODES ERROR CODES CLEARED ETHER...

Page 467: ...ay the button name if the button is working properly EXIT ENTER Up Arrow Down Arrow Left Arrow Right Arrow Target Reset DISPLAY TEST button DISP com1 com2 Pressing ENTER will initiate an automatic test of each display character COM1 LOOPBACK TEST button disp COM1 com2 COM1 LOOPBACK TEST RX TX Fail or Pass COM1 LOOPBACK TEST CONNECT LOOPBACK PLUG COM1 LOOPBACK TEST DONE COM2 LOOPBACK TEST button di...

Page 468: ...ION nom_f 3RDH_F 64s_f 60 HZ CALIBRATION 60_HZ field_gnd INPUT 180 HZ PRESS ENTER TO CALIBRATE AUTO CALIBRATING WAIT AUTO CALIBRATION DONE 60 HZ CALIBRATION nom_f 3rdh_f 64S_F 60 HZ CALIBRATION 60_HZ field_gnd INPUT 20 HZ PRESS ENTER TO CALIBRATE CALIBRATING WAIT CALIBRATING DONE CONNECT 1 K REF PRESS ENTER TO CALIBRATE CALIBRATE FIELD_GND 60_hz FIELD_GND CALIBRATING WAIT CALIBRATING DONE FACTORY ...

Page 469: ...F 30 M 3425A Instruction Book This Page Left Intentionally Blank ...

Page 470: ... 4 76 6 1 6 31 6 32 A 18 Failure Logic Diagram 4 75 Monitor SP 11 4 119 6 64 6 65 A 44 F 1 F 2 F 12 Monitor Menu Flow F 1 F 12 Monitoring SP 3 SP 11 4 3 4 119 6 1 6 64 Brush Lift Off Detection SP 12 4 3 4 95 6 46 Bus Ground SP 8 4 3 4 38 4 53 4 89 5 13 Bus Ground Protection SP 8 4 3 4 38 4 53 4 89 Button Test 6 68 6 73 F 3 C Calibration Data 3 35 CE Standard 5 1 Change Comm Access Code 2 24 3 31 4...

Page 471: ...me Overcurrent SP 2 4 3 4 29 4 77 6 1 6 34 A 19 D 8 Delta Frequency Check 4 2 4 53 Delta Voltage SP 12 4 2 4 53 4 54 4 103 5 17 6 14 6 15 A 9 Device Address 4 2 4 14 4 16 DHCP 1 3 4 2 4 18 4 19 A 4 DHCP Protocol 1 3 4 2 4 18 4 19 A 4 DIAG 2 2 2 3 4 11 4 13 5 31 6 68 Diagnostic LED 2 2 2 3 Mode 1 2 4 11 4 12 6 68 6 81 E 1 E 2 F 3 F 28 F 29 Test Procedures 6 1 6 6 6 68 Differential SP 1 SP 2 SP 6 SP...

Page 472: ...P 8 4 3 4 39 4 40 4 81 4 91 4 92 6 1 6 43 A 25 F 1 F 10 G GE L 2 Cabinet H3 5 6 General Information 2 16 4 24 4 39 5 1 5 32 General Unit Setup 4 1 4 2 Generator Breaker Failure SP 2 4 3 4 75 4 76 6 31 6 32 Ground Fault Protection 4 86 4 103 Motoring 4 2 4 61 Overload 4 2 4 61 Ground SP 1 SP 2 SP 4 SP 8 SP 12 SP 13 SP 17 SP 19 SP 20 SP 28 SP 31 2 8 4 3 4 28 4 38 4 53 4 58 4 75 4 80 4 85 4 87 4 89 4...

Page 473: ...4 3 4 80 6 1 6 36 A 21 Time Overcurrent SP 2 4 81 4 82 D 1 D 6 D 7 D 9 D 11 D 16 D 18 Time Overcurrent Relay Characteristic Curves D 6 D 7 Time Phase Overcurrent 4 3 4 81 6 1 6 37 A 21 IPScom COM Port Definitions 4 2 4 14 Comm Access Code Setup 4 2 4 4 Ethernet Port Setup 4 2 4 18 Functional Description 3 1 Installation 3 1 4 14 5 30 Main Screen 2 9 2 11 2 24 2 25 2 29 2 31 3 1 3 2 3 4 3 19 3 21 4...

Page 474: ...Calibration 6 78 New Command 3 4 Null Modem Cable 4 14 5 30 B 1 B 2 E 2 O One Line Functional Diagram SP 13 4 33 4 34 4 75 Open Command 3 4 Open Terminal Window 3 6 Operating Characteristics 4 116 Optional Dual Power Supply 5 8 Oscillograph SP 3 SP 13 SP 14 1 2 1 3 1 5 2 1 2 3 2 16 2 20 3 19 3 29 4 1 4 2 4 12 4 24 4 26 4 40 5 1 B 1 C 1 F 2 F 23 Recorder SP 14 1 2 2 1 2 2 2 16 2 19 3 29 4 2 4 24 4 ...

Page 475: ...1 5 Redundant Low Voltage Power Supply 1 5 Relay Communication 3 33 4 15 Front Panel 1 3 2 2 2 8 2 21 2 22 2 26 2 28 3 26 5 31 Menu 2 13 2 30 3 4 3 19 4 42 4 45 F 1 F 6 F 11 F 13 F 17 OK LED SP 15 2 2 2 3 6 7 6 68 6 77 6 81 F 3 OK LED Flash 6 68 6 77 Outputs 5 8 Setpoints 3 19 3 21 3 24 4 42 4 43 Replacement Fuses 5 8 Reset Delay Timer 4 3 4 124 Resetting Counters 2 2 2 29 Residual Directional Ove...

Page 476: ... 6 2 6 6 6 9 6 10 6 14 6 28 A 1 T Target LED SP 5 SP 15 2 2 2 4 2 13 4 62 6 11 6 27 6 68 6 72 A 13 F 3 LED Test 6 68 6 72 F 3 Module SP 1 SP 3 SP 13 SP 15 1 3 1 4 2 2 2 4 2 13 6 72 Module Panel 6 72 Reset Pushbutton SP 15 2 2 2 4 4 30 6 8 6 17 6 21 6 23 6 25 6 28 6 30 6 35 6 37 6 44 6 46 6 51 6 53 6 56 6 59 6 63 6 67 Terminal Window 3 5 3 6 4 23 Test Configuration 6 5 Error Codes 1 2 Setup 6 1 6 2...

Page 477: ...sis 5 3 5 4 Very Inverse SP 7 SP 9 6 36 6 37 6 52 A 21 A 28 D 1 D 10 D 13 D 17 View Target History 2 1 2 2 2 4 2 6 2 13 2 15 F 2 F 23 Targets 2 2 2 15 3 26 Voltage Control SP 2 SP 5 SP 7 4 3 4 65 4 66 4 78 4 81 4 82 4 91 6 1 6 24 6 25 6 37 6 38 A 15 A 21 Control Time Settings 4 66 Input Configuration 6 82 Inputs SP 14 5 31 6 3 6 7 6 10 6 12 6 14 6 16 6 17 6 21 6 24 6 26 6 28 6 30 6 31 6 33 6 37 6 ...

Page 478: ...magnetic Immunity 1 MHz Disturbance EN 60255 22 1 1988 ANSI C37 90 1 2002 Electrostatic Discharge 8kV Contact 15kV Air EN 60255 22 2 1997 Radiated RF 80MHz to 1000MHz 10V m 80 AM 1kHz EN 60255 22 3 2001 Fast Transients 5ns 50ns Bursts 5kHz for 15ms 300ms for 1 min 2kV power supply lines and earth 2kV signal data and control lines EN 60255 22 4 2002 Surge 1Kv Line to Line coupling 2Kv Line to Earth...

Page 479: ...H 2 M 3425A Instruction Book This Page Left Intentionally Blank ...

Page 480: ... furnished under this contract In no event shall the Seller be liable for special incidental exemplary or consequential damages including but not limited to loss of profits or revenue loss of use of the equipment or any associated equipment cost of capital cost of purchased power cost of substitute equipment facilities or services downtime costs or claims or damages of customers or employees of th...

Page 481: ...This Page Left Intentionally Blank ...

Page 482: ...e North Largo Florida 33773 3724 U S A PHONE 727 544 2326 FAX 727 546 0121 E MAIL marketing beckwithelectric com WEB PAGE www beckwithelectric com ISO 9001 2008 2004 Beckwith Electric Co All Rights Reserved Printed in USA 800 3425A IB 09 07 12 ...

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