FEATURES DEVICE 489 DGP G60 LPS-O MGC MIG MIP

Transcription

1 GENERATOR Selector Guide KVA MVA LPS-O MIP MIG MGC 489 DGP G60 COMMUNICATIONS MONITORING CONTROL PROTECTION EATURES DEVICE 489 DGP G60 LPS-O MGC MIG MIP Overspeed 14 Distance, Phase 21P Overexcitation, Volts/Hertz 24 Synchronism Check or Synchronizing 25 Undervoltage, Phase 27P Reverse Power 2 Undercurrent 7 Loss of ield 40 Reverse-Phase or Current Unbalance 46 Reverse Phase Sequence Voltage 47 Thermal Image 49 Breaker ailure 50B IOC, Ground/Neutral/Phase 50G/N/P G/N/P G/N/P P G/P TOC, Ground/Neutral/Phase 51G/N/P G/N/P G/N G/N/P N/P G/P TOC, Voltage Restrained 51V Overvoltage, Neutral/Phase 59N/P N/P P N/P N/P 100% Stator Ground 64 27TN Current Directional, Neutral/Phase 67/N/P N/P N/P Loss of Mains 78 Over and Underfrequency 81O/U O/U O/U O/U O/U Differential, Stator 87S Voltage Transformer use ailure VT Accidental Energization Sequential Trip Logic Power Supply, AC or DC AC/DC DC AC/DC DC AC/DC AC/DC AC/DC Redundant Power Supplies CT Inputs 5A/1A 5/1 5/1 Self-Test ailure Contact Settings Groups lash Memory Contact Inputs (ixed) up to 2 6 Contact Inputs (Programmable) up to Contact Outputs (ixed) up to Contact Outputs (Programmable) up to Virtual Inputs 2 Virtual Outputs 64 Display Keypad Trip/Coil Supervision T 22 Programmable Logic User-Programmable LEDs Timers Digital Counters Digital Elements IRIG-B Input Analog Outputs 4 Current RMS Current Phasor Current Demand Voltage RMS Voltage Phasor Phase-Phase Power actor Symmetrical Components MW, MVA, Mvar MW, MVA, Mvar Demand Energy Metering requency Analog Inputs 4 ault Report Event Recorder Oscillography (Waveform Capture) Data Logger Interface Program RS22 Port RS485 Port 2 1/ Baud Rate 19.2k 115k 9.6k 19.2k 19.2k 10 Base Port 1/2/ ModBus Protocol ModBus User Map DNP Protocol UCA2/MMS Protocol TCP/IP 28

2 UR Generator Management Relay TM Versatile relay for the protection of AC generators. eatures and Benefits lexlogic and distributed lexlogic Virtual and expandable I/Os to reduce hardware costs User-programmable LEDs User-definable display messages lash memory for field upgrades Common drawout modules to reduce spare parts costs Multiple settings groups Applications Any size of AC generator driven by steam, gas and hydraulic turbine Stand-alone or component in automated substation control system enervista.com compatible (see page 275) COMING SOON Protection and Control 100% stator ground differential Loss of excitation Reverse and low forward power Current unbalance Overexcitation lexelement universal comparators Distance backup Monitoring and Metering Current, voltage, power, power factor, frequency, energy Contact input and output status User Interfaces URPC software for setting, monitoring RS22, RS485 and Ethernet ports GE Multilin 29

3 G60 UR Generator Management Relay TM Protection The G60, a digital Generator Management Relay, is designed specifically for AC generators of any size, driven by steam, gas or hydraulic turbine. As part of the Universal Relay amily, the G60 provides superior protection which includes: 100% Stator Ground 100% stator ground fault protection is provided by an adaptive voltage differential feature responding to the unbalance of the third harmonic at the machine terminals and at the neutral point. The protection could be supplemented or replaced by a third harmonic undervoltage function responding to the voltage at the neutral side of the machine. Loss of Excitation Impedance based two-stage protection responds to positive sequence voltage and current. Sensitive Directional Power Available for reverse power and low forward power protection. Current Unbalance Meets ANSI standards to minimize risk of heat damage caused by unbalance in the generator. Overcurrent Protection IOC and TOC functions available for phase, ground, and neutral. Time curves provided include three IEEE, four IEC, four GE IAC, I 2 t, definite time and two userprogrammable curves. Phase TOC functions use voltage restraint. Overexcitation Protection Provided through a Volts/Hertz function with programmable inverse time characteristic. requency Protection Over and underfrequency protection available. Voltage Protection Over and undervoltage protection provided. Out-of-Step Tripping Integrated out-of-step tripping and power swing blocking functions use either two or three characteristics to trace the positive sequence impedance trajectory to detect an out-ofstep condition. Programmable trip action (instantaneous or delayed). Synchronism Check Two independent synchronism check elements monitor differences in voltage magnitudes, phase angles and frequencies. User-Definable Protection unctions The G60 relay includes 16 universal comparators called lexelements that can be programmed to respond to changes in any measured value. unctional Block Diagram 52 CLOSE TRIP P 59P 59_2 59N 81O 81U /27 50P 50N 51P 51N 46 67P 67N G 87S Metering 50G 51G 27TN 27Aux 59Aux 0 R 64TN G60 Generator Management Relay 80710A6.CDR

4 G60 UR Generator Management Relay TM Typical Wiring TYPICAL CONIGURATION THE AC SIGNAL PATH IS CONIGURABLE POSITIVE WATTS OPEN DELTA VT CONNECTION (ABC) A B C R IA5 IA IA1 IB5 IB IB1 IC5 IC IC1 IG5 IG IG1 VA VA VB VB VC VC VA VA VB VB VC VC VX VX IA5 IA IA1 IB5 IB IB1 IC5 IC IC1 IG5 IG IG1 M M M M M M M M M M M M 1a 1b 1c 2a 2b 2c a b c 4a 4b 4c 5a 5c 6a 6c 7a 7c 5a 5c 6a 6c 7a 7c 8a ( DC ONLY ) 8c 1a 1b 1c 2a 2b 2c a b c 4a 4b 4c DC AC or DC Shielded twisted pairs Ground at Remote Device Co-axial No. 10AWG Minimum GROUND BUS H5a H5c H6a H6c H5b H7a H7c H8a H8c H7b H8b B1b B1a B2b Ba Bb B5b HI B6b LO B6a B8a B8b D2a Da D4a COM Db D4b D5b COM D5a D6a D7b CONTACT IN H5a CONTACT IN H5c CONTACT IN H6a CONTACT IN H6c COMMON H 5b CONTACT IN H7a CONTACT IN H7c CONTACT IN H8a CONTACT IN H8c COMMON H7b SURGE CRITICAL AILURE 48 VDC OUTPUT CONTROL POWER SURGE ILTER RS485 COM 1 RS485 COM 2 IRIG-B SURGE MODULES MUST BE GROUNDED I TERMINAL IS PROVIDED CURRENT INPUTS 8E / 8 POWER SUPPLY 1 9A CPU VOLTAGE INPUTS DIGITAL I/O 6G I H 1 V G60 UR Generator Management Relay X W V U T VOLTAGE INPUTS GE Multilin CONTACTS SHOWN WITH NO CONTROL POWER MODULE ARRANGEMENT (Rear View) S R P N M L K J H G CT I/O VT/CT 8A / 8B RS-22 (front) DB-9 D 9 CPU CURRENT INPUTS B 1 Power Supply H 2 V H V H 4 V I I I H1a H1b H 1c H 2a H2b H 2c H a Hb H c H 4a H4b H 4c VOLT & CURRENT SUPV. VOLTAGE SUPV. TC1 TC2 UR COMPUTER TXD 2 2 RXD RXD 2 TXD SGND SGND AP.CDR 9 PIN CONNECTOR 25 PIN CONNECTOR 1

5 G60 UR Generator Management Relay TM Monitoring and Metering Advanced metering functions are common across the UR platform (see page 7). The G60 provides additional specific monitoring and metering that includes: apparent power, power factor (all power values per phase and total) energy, and frequency are measured. These signals are available for local or remote display using communications, and can be stored in the oscillography record or data logger. G60 Guideform Specifications or an electronic version of the G60 guideform specifications, please visit: Multilin/specs, fax your request to or to Metering Voltage phasors (both magnitude and phase angle), voltage symmetrical components, current phasors, current symmetrical components, current true onecycle RMS value, active, reactive, Ordering G60 * 00 HC * ** H** M** P** U** W** or full sized horizontal mount G60 * 00 V * ** H** M** P** or reduced size vertical mount G60 Base unit A RS485 + RS485 CPU C RS Base (MMS/UCA2 and ModBus TCP/IP) CPU D RS485 + redundant 10Base (MMS/UCA2 and ModBus TCP/IP) CPU 00 No software options HC Horizontal mount V aceplate with keypad and display H 125/250V AC/DC power supply L 24/48V (DC only) 8A 8A Standard 4CT/4VT 8B 8B Sensitive Ground 4CT/4VT 8C 8C Standard 8CT 8D 8D Sensitive Ground 8CT XX XX XX XX No module 6A 6A 6A 6A 6A 2 orm A (voltage w/opt current) and 2 orm C outputs, 8 digital inputs 6B 6B 6B 6B 6B 2 orm A (voltage w/opt current) and 4 orm C outputs, 4 digital inputs 6C 6C 6C 6C 6C 8 orm C outputs 6D 6D 6D 6D 6D 16 digital inputs 6E 6E 6E 6E 6E 4 orm C outputs, 8 digital inputs ast orm C outputs 6G 6G 6G 6G 6G 4 orm A (voltage w/opt current) outputs, 8 digital inputs 6H 6H 6H 6H 6H 6 orm A (voltage w/opt current) outputs, 4 digital inputs 6K 6K 6K 6K 6K 4 orm C and 4 ast orm C outputs 6L 6L 6L 6L 6L 2 orm A (current w/ opt voltage) and 2 orm C outputs, 8 digital inputs 6M 6M 6M 6M 6M 2 orm A (current w/ opt voltage) and 4 orm C outputs, 4 digital inputs 6N 6N 6N 6N 6N 4 orm A (current w/ opt voltage) outputs, 8 digital inputs 6P 6P 6P 6P 6P 6 orm A (current w/ opt voltage) outputs, 4 digital inputs 6R 6R 6R 6R 6R 2 orm A (no monitoring) and 2 orm C outputs, 8 digital inputs 6S 6S 6S 6S 6S 2 orm A (no monitoring) and 4 orm C outputs, 4 digital inputs 6T 6T 6T 6T 6T 4 orm A (no monitoring) outputs, 8 digital inputs 6U 6U 6U 6U 6U 6 orm A (no monitoring) outputs, 4 digital inputs 5C 5C 5C 5C 5C 8 RTD inputs 5E 5E 5E 5E 5E 4 DCmA inputs, 4 RTD inputs select a maximum of DCmA inputs Accessories Interactive UR Training CD-ROM available. Visit to order. } enervista enabled See page Generator Management Relay is a trademark of GE Multilin. 2

6 SR Generator Management Relay TM Economical protection, monitoring and metering for generators. eatures and Benefits Configurable analog output channels Digital inputs for protection, control or diagnostic functions Data communications from 00 to 19,200 bps Multiple communications ports Event recording (40 events) Oscillography (64 cycles) Drawout construction Applications 25, 50 or 60 Hz synchronous or induction generators Primary, backup and co-generator applications enervista.com compatible (see page 275) Protection and Control Phase differential 100% stator ground Overcurrent, over and undervoltage Monitoring and Metering RMS and negative sequence current, voltage Three-phase power and temperature User Interfaces 40 character display with full keypad RS22 and RS485 ports URPC functionality GE Multilin

7 489 SR Generator Management Relay TM Protection The 489 Generator Management Relay is an economical choice for protection, metering and monitoring of synchronous or induction generators of 25, 50 or 60 Hz. It can be used in primary, backup and co-generation applications. Protection features include: Machine ault Protection A dual slope percentage differential element and an IOC element protect against machine faults during operation and through startup respectively. Dual slope percentage differential. I OPERATE (multiples of CT) OPERATE REGION Slope 2 = 20% Slope 1 = 10% Minimum Pickup = 0.10 x CT I RESTRAINT (multiples of CT) A2.cdr Stator Ground Protection In addition to a ground overcurrent element, the 489 compares the machine neutral voltage and ground current to determine if ground directional faults are within or outside the generator. 100% stator ground fault protection is provided through an overvoltage element and an adaptive element. Stator Thermal Protection The stator RTDs are monitored to provide stator thermal protection during running overload conditions. Additionally, the RTDs vote for high reliability. The thermal model overload curve may be biased by the current unbalance and/or the hottest stator RTD. Machine cooling is simulated using exponential decay of the thermal capacity used register. The thermal overload curve may also be used to provide start-up protection for an induction generator. unctional Block Diagram GENERATOR Trip Coil Supervision GN Q 50/27 51V 60L B 87G 50/51GN 27TN U 24 Output relays 86 RS22 RS485 RS Output relays Analog outputs Analog inputs 489 Application / Q B 50 50/51GN 51V 59 59GN/27TN 60L G Overspeed Distance Volts/Hz Undervoltage Inadvertent generator energization Reverse power/low forward power Bearing overtemperature (RTD) Bearing vibration (analog inputs) Loss of excitation (impedence) Loss of field (reactive power) Negative sequence overcurrent (I 2 t) Voltage phase reversal Stator thermal (RTD/thermal model) High-set phase overcurrent Breaker failure detection Offline overcurrent Ground overcurrent Voltage restrained phase overcurrent Overvoltage 100% stator ground VT fuse failure Ground directional Overexcitation (analog input) Overfrequency/underfrequency Electrical lockout Percentage differential Sequential tripping logic Trip coil supervision Synchronous Induction 80878E6.cdr 4

8 489 SR Generator Management Relay TM Bearing Protection Any of the 12 RTD inputs may be configured to monitor and protect against bearing overtemperature conditions. Two RTDs can vote to give higher reliability. Additionally, four analog inputs can be configured to monitor bearing vibration transducers. This provides alarm or trip functions perfect for smaller machines. Excitation System Protection elements include overexcitation, over and undervoltage. Alarm or trip functions may be activated by definite or inverse time curves. Loss of field protection is provided via loss of excitation and reactive power. Rotor Thermal Protection A definite time alarm and inverse TOC curve trip protect the generator rotor from overheating caused by negative sequence currents. The rating for both continuous and short time operation is defined by the equation: K=I 2 t. A variable reset rate provides a thermal memory of previous unbalance conditions. Negative sequence inverse TOC. Time (Seconds) K= Negative Sequence Current / Rated Current A2.cdr System Backup Protection Three voltage restrained overcurrent elements provide backup protection for system faults. The pickup level for the inverse time curves are adjusted in conjunction with the measured phase to phase voltage. Voltage restraint characteristic. Curve Pickup Multiplier Phase-Phase Voltage / Rated Phase-Phase Voltage A2.cdr High-set phase overcurrent provides backup protection for on or offline elements. If any individual phase current exceeds the pickup level, a trip will occur. Distance protection uses two zones of mho phase to phase protection (total of six elements), which is intended as a backup for primary line protection against internal and unit transformer faults. Sequential Tripping Logic During routine shutdown, and for less critical trips, the sequential trip function can be used to prevent overspeed. Turbine valve status is monitored via digital input. When the valve is closed, either low forward power or reverse power will trip the breaker once the generator output has fallen below the programmed level. Abnormal requency Alarm functions for over and underfrequency are included. If operator action is not taken to correct the situation, a trip will occur if conditions persist or become more severe. Operational ailures On a total or partial loss of the prime mover (if the power generated is less than the no-load losses of the machine), real power will start flowing back into the generator. The reverse power function can be set to trip the generator when it begins motoring. Accidental energization protection limits damage if the generator is accidentally placed online while it is shutdown. Overspeed Twenty-four VDC power is provided for mounting a probe or sensor near the shaft key or keyway, with an assignable digital input configured as a tachometer to monitor the probe output signal. The 489 can monitor speed via an assignable input. ROTATING SHAT SENSOR Monitoring Protection With breaker failure enabled when the 489 initiates a trip and generator current does not drop to zero after the pre-set time delay, a breaker failure alarm will occur. When the breaker is closed, the trip coil circuit monitors itself for a break in continuity, which triggers a trip coil monitor alarm. VT fuse failure triggers an alarm and disables features that use voltage measurements. Monitoring and Metering TO 489 DIGITAL INPUT E2.dwg The 489 features advanced metering and event recording functions which include: Metering unctions: Complete monitoring functions include: Current Voltage Power: kw kvar kva Energy use: MWh Mvarh Power factor requency our analog inputs Demand and peak demand functions include: Current Power: kw kvar kva 5

9 489 STATUS GENERATOR STATUS OUTPUT RELAYS 489 IN SERVICE BREAKER OPEN R1 TRIP SETPOINT ACCESS BREAKER CLOSED R2 AUXILIARY COMPUTER RS22 HOT STATOR R AUXILIARY COMPUTER RS485 NEG. SEQUENCE R4 AUXILIARY AUXILIARY RS485 GROUND R5 ALARM ALT. SETPOINTS LOSS O IELD R6 SERVICE RESET VT AILURE RESET POSSIBLE MESSAGE BREAKER AILURE NEXT PROGRAM PORT SETPOINT MESSAGE ACTUAL ESCAPE 1 2 VALUE ENTER. HELP Generator Management Relay 489 SR Generator Management Relay TM All measured quantities can be viewed on the front panel display, through the communications ports, or through one of the four analog outputs. Event Recording The 489 records and timestamps the last 40 events, their cause and last measured parameters. All tripping functions are classed as events. Alarm functions may be selectively chosen as events. All of the 489 event data may be accessed via the three communications ports or viewed on the front panel display to help with troubleshooting. Oscillography The 489 samples the current and voltage inputs at a rate of 12 times per cycle. These samples are stored in a configurable buffer up to 64 cycles long. The trigger position setpoint allows the user to define how much of the buffer cycles are pre and post trigger. The trace memory may be extracted from the relay through the communications ports. It may be displayed using the 489PC software provided with the relay. This allows the user to examine magnitudes and phase relationships of the measured signals when troubleshooting. Inputs and Outputs The 489 offers a multitude of connections for analog and digital input and output. Analog I/Os The four input channels monitored by the 489 can be used for functions such as the protection and monitoring of bearing vibration. The four output channels can be configured to any measured parameter. Digital Inputs Seven assignable digital inputs can be used for functions such as a tachometer for overspeed control. RTD Inputs Twelve RTD inputs allow the user to monitor both stator and bearing temperature. A voting feature allows two RTDs monitoring the same device to vote for high reliability. Output Relays The 489 has six output relays: one trip, three auxiliary, one alarm, and one self-test relay. LEDs on the front panel show the status of each output. User Interfaces Communications A front panel RS22 port and two rear panel RS485 ports support ModBus RTU and DNP.0 protocol. The RS22 port can transmit data at 9600 bps, while the two RS485 ports are variable from 00 to 19,200 bps. Data may be accessed from all three ports simultaneously and independently. All measured values are also available via the four analog outputs. A typical communications setup could include a programmable logic controller (PLC) using the four analog outputs for control functions. The front panel RS22 port could be used for local interrogation and troubleshooting. One of the 485 ports could be used to connect a DCS or SCADA system, for continuous online monitoring by the operations personnel. The second RS485 port could be wired to a modem, which would be used for off-site interrogation of the 489 by engineering personnel. Data is available from the 489 via three communications ports and four analog inputs. SCADA/DCS 489 PC Oscillography data can be displayed using the 489PC program. The 489 allows users ease of access through: Keypad and Display A = 0 C = 0 B = 0 AMPS COMPUTER RS485 AUXILIARY RS485 MODEM The front panel features a 40 character display and a keypad that includes full numeric keys and control keys. LED Indicators 4 ANALOG OUTPUTS RONT RS PC Self-Test The 489 initiates a self-test at power up and continues in the background during operation. A self-test failure triggers an alarm. The front panel features 22 LED indicators. Eight of these indicate 489 status, eight indicate generator status, and six indicate the output relay status. IRIG-B Input PLC E4.cdr An IRIG-B input is provided for time synchronization via satellite signal. 6

10 489 SR Generator Management Relay TM eatures 489 STATUS Indicates when the 489 is in service, if setpoint access is allowed, any communication port activity, if alternate setpoints are in use, if any latched alarm or trip may be reset, and if Next key should be pressed to display diagnostic messages. OPERATOR KEYS Once the 489 is programmed, normal operation requires only two keys. The Reset key is used to reset latched trips or alarms. The Next key is used to scroll through diagnostic messages in the event of an alarm or trip. PROGRAM PORT The front panel RS22 port may be connected to a PC for local interrogation, downloading setpoint files, and upgrading product firmware. A = 0 C = 0 B = 0 AMPS 489 STATUS GENERATOR STATUS OUTPUT RELAYS 489 IN SERVICE BREAKER OPEN R1 TRIP SETPOINT ACCESS BREAKER CLOSED R2 AUXILIARY COMPUTER RS22 HOT STATOR R AUXILIARY COMPUTER RS485 AUXILIARY RS485 ALT. SETPOINTS NEG. SEQUENCE GROUND LOSS O IELD R4 AUXILIARY R5 ALARM R6 SERVICE RESET POSSIBLE RESET VT AILURE MESSAGE NEXT BREAKER AILURE PROGRAM PORT SETPOINT ACTUAL ESCAPE ENTER MESSAGE VALUE HELP DISPLAY orty character LCD display for setpoint programming, monitoring, status, and fault diagnostics. Up to twenty scrolling messages may be defined as the default display. OUTPUT RELAYS Indicates any operation of the 489 output relays. GENERATOR STATUS Indicates if the generator is online or offline. Also indicates pickups of several protective features. KEYPAD Numeric keys allow for simple entry of setpoint values. Control keys allow simple navigation through setpoint and actual value message structures. Help key provides context sensitive help messages. 489 Generator Management Relay RTD INPUTS Twelve RTD inputs are individually field programmable to measure platinum, nickel, or copper type RTDs. RS485 COMMUNICATIONS Two independent RS485 communication ports may be accessed simultaneously using Modbus RTU and DNP.0 protocol at baud rates up to bps. OUTPUT RELAYS Six, trip duty, form C output relays may be assigned to trip, alarm and control functions. E G H A1 A2 A A4 A5 A6 A7 A8 A9 A10 A11 A12 A1 A14 A15 A16 A17 A18 A19 A20 A21 A22 A2 A24 A25 A26 A27 - #1+ #2+ #+ #4+ AN +24 #1+#2+#+#4+-COM RTD1 RTD2 RTD RTD4 RTD5 RTD6 COM ANALOG OUTPUTS SHO Vdc ANALOG INPUTS RTD B1 SHD LOW VOLTAGE INPUTS, DO NOT HI-POT! + C1 ACCESS B2 + - C2 AUX. B RS485 + C GENERATOR MANAGEMENT RELAY TM BREAKER B4 COM STATUS - C4 ASSIGNABLE INPUTS SW +24 COMP RS485 RTD7 RTD8 RTD9 RTD10 RTD11 RTD12 #1 #2 # #4 #5 #6 #7 com Vdc + - COM D1 D2 D D4 D5 D6 D7 D8 D9 D10 D11 D12 D1 D14 D15 D16 D17 D18 D19 D20 D21 D22 D2 D24 D25 D26 D27 R1 TRIP NC R1 TRIP COM PHASE VT COM PHASE B VT 1 R1 TRIP R2 AUX R AUX R AUX R4 AUX. R5 ALARM R5 ALARM R6 SERVICE NUETRAL TRIP COIL IRIG-B+ NO COM NC NO COM NC NO COM VT COM SUPERVISION+ R2 AUX R2 AUX R AUX R4 AUX R4 AUX. R5 ALARM R5 SERVICE R6 SERVICE NUETRAL TRIP COIL IRIG-B- NO NC COM NO NC COM NO NC VT SUPERVISION- PHASE A Ia NEUTRAL Ib NEUTRAL Ic NEUTRAL IA OUT IB OUT IC OUT 1A GROUND GROUND ILTER SAETY VT CT CT CT CT CT CT CT (HG)CT GROUND GROUND PHASE C Ia NEUTRAL Ib NEUTRAL Ic NEUTRAL IA OUT IB OUT IC OUT 1A GROUND GROUND CONTROL CONTROL VT CT CT CT CT CT CT CT (HG)CT POWER - POWER ANALOG SIGNALS our isolated 4-20 ma analog outputs may be used to replace costly transducers. They may be field programmed to reflect any measured parameter. our 0-1 or 4-20 ma analog inputs may be used to monitor any transducer signal. Possible applications include vibration and field current monitoring. DIGITAL INPUTS Access jumper input provides setpoint programming security. Breaker status input tells 489 if the generator is online or offline. Seven assignable digital inputs may be field programmed for a variety of functions including tachometer. TRIP COIL SUPERVISION Monitors the trip circuit for continuity when the generator is online and alarms if that continuity is broken. VT INPUTS our VT inputs provide wye or open delta system voltage sensing as well as neutral voltage sensing. LOWER E UPPER LOWER E UPPER GROUND Separate safety and filter ground. All inputs meet C7.90 EMI, SWC, RI interference immunity. UPPER G LOWER H UPPER G LOWER H AC/DC CONTROL POWER Universal power supply VDC VAC CT INPUTS Seven CT inputs provide threephase output, three-phase neutral and ground current sensing E9.cdr 7

11 489 SR Generator Management Relay TM Typical Wiring CAUTION DO NOT INJECT OVER RATED CURRENT ON G10 & H10. (See pg. 2-10) OPTIONAL TRANSDUCER TO 4-20 ma INPUT OR OVEREXCITATION PHASE a ma DC Amps EXCITER AND AUTOMATIC VOLTAGE REGULATOR IELD PHASE A WYE VOLTAGE TRANSORMER CONNECTION UNIT CIRCUIT BREAKER OPEN DELTA VOLTAGE TRANSORMER CONNECTION UNIT CIRCUIT BREAKER PHASE b C(B) PHASE c B(C) A PHASE B PHASE C GENERATOR LOAD LOAD E10 10 G9 H9 G10 H10 G H G4 H4 G5 H5 G6 H6 G7 H7 G8 H8 G2 H1 H2 G1 G2 H1 H2 G1 INDUCTIVE/HALL EECT SENSOR OR TACHOMETER CAUTION + 24 DO NOT INJECT VOLTAGES TO DIGITAL INPUTS (DRY CONTACT CONNECTIONS ONLY) KEYSWITCH OR SETPOINT ACCESS DCS UNIT BREAKER STATUS (52a) V NEUTRAL B1 A1 A2 A A4 A5 A6 A7 A8 A9 A10 A11 A12 A1 A14 A15 D1 D2 D D4 D5 D6 D7 D8 D9 D10 D11 D12 D1 D14 D15 120Ω 1n D16 D17 D18 D19 D20 D21 D22 D2 D24 C1 C2 C C4 1A GROUND D25 D26 COM HG INPUTS RTD SHIELD HOT COMPENSATION RTD RETURN COMPENSATION HOT HOT COMPENSATION RTD RETURN COMPENSATION HOT HOT COMPENSATION RTD RETURN COMPENSATION HOT HOT COMPENSATION RTD RETURN COMPENSATION HOT HOT COMPENSATION RTD RETURN COMPENSATION HOT HOT COMPENSATION RTD RETURN COMPENSATION HOT COM RTD #1 1A / 5A RTD #2 RTD # RTD #4 RTD #5 RTD #6 RTD #7 RTD #8 RTD #9 RTD #10 RTD #11 RTD #12 ASSIGNABLE INPUT 1 ASSIGNABLE INPUT 2 ASSIGNABLE INPUT ASSIGNABLE INPUT 4 ASSIGNABLE INPUT 5 ASSIGNABLE INPUT 6 ASSIGNABLE INPUT 7 COMMON SWITCH + 24Vdc ACCESS BREAKER STATUS COMPUTER RS485 COM 1A / 5A COM 1A / 5A COM PHASE a PHASE b PHASE c NEUTRAL END CT's DIGITAL INPUTS AUXILIARY RS485 AUTOMATIC CT SHORTING TERMINALS ANALOG OUTPUTS PHASE A PHASE B PHASE C OUTPUT CT's 24 COM COM COM Vdc COM D27 B2 B B4 A16 A17 A18 A19 A20 A21 A22 A2 A24 A25 A26 A27 120Ω 1n GE Multilin 489 SR Generator Management Relay 1A / 5A COM 1A / 5A COM 1A / 5A COM ANALOG I/O ANALOG INPUTS SHIELD R1 TRIP Va R2 AUXILIARY R AUXILIARY R4 AUXILIARY R5 ALARM R6 SERVICE Vb CONTROL POWER SAETY GROUND ILTER GROUND IRIG-B TRIP COIL SUPERVISION Vc RONT PANEL LOCAL PROGRAMMING PORT Vcom PHASE VOLTAGE INPUTS H12 H11 G12 G11 E12 12 E11 11 E2 1 E1 2 E E5 4 E4 5 E6 6 E8 7 E7 8 E9 9 RS22 UNIT BREAKER TRIP CONTROL UNIT SHUTDOWN CIRCUIT Va GROUND BUS 52a Vb ALARM ANNUNCIATOR SEL TEST ANNUNCIATOR OUTPUT CONTACTS SHOWN WITH NO CONTROL POWER RS22 INTERACE RELAY 1 TXD 2 RXD 4 SGND PIN CONNECTOR Vc 489 POWER SUPPLY CAUTION UNIT TRIP COIL Vcom PHASE VOLTAGE INPUTS CHECK VOLTAGE RATING O THE UNIT BEORE APPLYING POWER. (SEE Pgs.2-8) COMPUTER RXD 2 TXD SGND PIN CONNECTOR CONTROL POWER 9 WIRE RS22 120Ω 1n GROUND COMMUNICATION PORTS ONLY AT MASTER DEVICE PERSONAL COMPUTER RS22 489PC RS485 PORT COMMON COMMON 120Ω 1n SEL POWERED BEARING VIBRATION TRANSDUCERS #1+ WATTS 4 20mA ANALOG INPUT PLC or COMPUTER #2+ #+ #4+ VARS STATOR RTDs BEARING RTDs EH.dwg 8

12 489 SR Generator Management Relay TM 489 Technical Specifications PROTECTION GROUND CURRENT INPUTS CT ratio: 10000:1 for 1 A/5 A secondary, 50:0.025 for HG CT secondary: 1 A/5 A, 2.5 ma for HG Burden: Less than 0.2 VA at rated load for 1 A/5 A Less than 0.02 VA at rated load for HG Conversion range: x CT for 1 A/5 A A primary for HG Accuracy: at <2 x CT: ±0.5% of 2 x CT for 1 A/5 A at 2 x CT: ±1% of 20 x CT for 1 A/5 A HG: at <10 A: ± 0.1 A/5 A at A: ±1.0 A 150 ma continuous CT withstand: 1 80 times rated current for 1 A/5 A 2 40 times rated current for 1 A/5 A times rated current for 1 A/5 A MONITORING TRIP COIL SUPERVISION Applicable voltage: VDC/VAC Trickle current: 2 5 ma METERING PHASE AND DIERENTIAL CURRENT INPUTS CT primary: A CT secondary: 1 A or 5 A (must be specified with order) Burden: <0.2 VA at rated load Conversion range: x CT Accuracy: at <2 x CT: ±0.5% of 2 x CT at 2 x CT: ±1% of 20 x CT CT withstand: 1 80 times rated current 2 40 times rated current times rated current INPUTS PHASE VOLTAGE INPUTS VT ratio: :1 in steps of 0.01 VT secondary: 200 VAC (full scale) Conversion range: x full scale Accuracy: ±0.5% of full scale Max continuous: 280 VAC NEUTRAL VOLTAGE INPUT VT ratio: :1 in steps of 0.01 VT secondary: 100 VAC (full scale) Conversion range: x full scale Accuracy: ±0.5% of full scale Max continuous: 280 VAC DIGITAL INPUTS Inputs: External switch: 9 opto-isolated inputs dry contact <800 Ω or open collector NPN transistor from sensor 6 ma sinking from internal 4 K 24 VDC with Vce <4 VDC 489 sensor supply: ma max RTD INPUTS RTDs: wire type RTD sensing current: Isolation: } 100 Ω Platinum (DIN.4760) 100 Ω Nickel field 120 Ω Nickel programmable 10 Ω Copper 5 ma 6 Vpk (isolated with analog inputs and outputs) -50 to +250 C ±2 C for Pt and Ni, ±5 C for Cu 25 Ω Max per lead >1000 Ω <-50 C Range: Accuracy: Lead resistance: No sensor: Short/low alarm: ANALOG CURRENT INPUTS Current inputs: 0 1 ma, 0 20 ma or 4 20 ma (setpoint) Input impedance: 226 Ω ± 10% Conversion range: 0 21 ma Accuracy: ±1% of full scale Type: passive Analog input supply: ma max POWER SUPPLY CONTROL POWER Options: LO/HI (must be specified when ordering) Range: LO: DC: VDC AC: Hz HI: DC: VDC AC: Hz Power: 45 VA (max), 25 VA typical Voltage loss-ride through time: 0 ms COMMUNICATIONS COMMUNICATIONS PORTS RS22 port: 1, front panel, non-isolated RS485 ports: 2, isolated 6 Vpk Baud rates: RS485: 00, 1200, 2400, 4800, 9600, bps RS22: 9600 bps Parity: None, odd, even Protocol: ModBus RTU/half duplex, DNP.0 OUTPUTS ANALOG CURRENT OUTPUT Type: Active Range: 4 20 ma, 0 1 ma (must be specified with order) Accuracy: ±1% of full scale 4 20 ma maximum load: 1200 Ω 0 1 ma maximum load: 10 kω Isolation: 6 Vpk (isolated with RTDs and analog inputs) 4 assignable outputs: phase A, B, C output current, -phase average current, negative sequence, generator load, hottest stator RTD, hottest bearing RTD, hottest other RTD, RTD # 1-12, phase AB voltage, phase BC voltage, phase CA voltage, average phase-phase voltage, V/Hz, frequency, rd harmonic neutral voltage, Power factor, -phase real power (kw), -phase apparent power (kva), -phase reactive power (kvar), analog inputs 1 4, current demand, kvar demand, kw demand, kva demand, thermal capacity used, tachometer OUTPUT RELAYS Configuration: 6 electromechanical orm C Contact material: Operate time: silver alloy 10 ms Max ratings for operations VOLTAGE MAKE/CARRY MAKE/CARRY BREAK MAX CONTINUOUS 0.2 sec LOAD DC Resistive 0 VDC 10 A 0 A 10 A 00 W 125 VDC 10 A 0 A 0.5 A 62.5 W 250 VDC 10 A 0 A 0. A 75 W DC Inductive 0 VDC 10 A 0 A 5 A 150 W 125 VDC 10 A 0 A 0.25 A 1. W (L/R = 40 ms) 250 VDC 10 A 0 A 0.15 A 7.5 W AC Resistive 120 VAC 10 A 0 A 10 A 2770 VA 250 VAC 10 A 0 A 10 A 2770 VA AC Inductive 120 VAC 10 A 0 A 4 A 480 VA P= VAC 10 A 0 A A 750 VA PRODUCTION TESTS Thermal cycling: Operational test at ambient, reducing to -40 C and then increasing to 60 C Dielectric strength: 2.0 kv for 1 min from relays, CTs, VTs, power supply to safety ground DO NOT CONNECT ILTER GROUND TO SAETY GROUND DURING TEST TERMINALS Low voltage (A, B, C, D terminals): 12 AWG max High voltage (E,, G, H terminals): #8 ring lug, 10 AWG wire standard ENVIRONMENTAL Ambient operating temperature: -40 C to +60 C Ambient storage temperature: -40 C to +80 C Humidity: Up to 90%, noncondensing Altitude: Up to 2000 m Pollution degree: 2 NOTE: It is recommended that the 489 be powered up at least once per year to prevent deterioration of electrolytic capacitors in the power supply. LCD contrast impaired below -20 C TYPE TESTS Dielectric strength: Per IEC and ANSI/IEEE C kv for 1 min from relays, CTs, VTs, power supply to safety ground DO NOT CONNECT ILTER GROUND TO SAETY GROUND DURING TEST Insulation resistance: IEC VDC, from relays, CTs, VTs, power supply to safety ground DO NOT CONNECT ILTER GROUND TO SAETY GROUND DURING TEST Transients: ANSI C oscillatory (2.5 kv/1 MHz) ANSI C fast rise (5k V/10 ns) Ontario Hydro A-28M-82 IEC255-4 impulse/high frequency disturbance Class III level Impulse test: IEC J 5 kv RI: 50 MHz/15 W transmitter EMI: C electromagnetic 150 MHz and 450 MHz, 10 V/m Static: IEC static discharge Environment: IEC temperature/humidity cycle Vibration: Sinusoidal vibration 8.0 g for 72 hrs PACKAGING Shipping box: Shipping weight: CASE ully drawout (automatic CT shorts) Seal provision Dust tight door Panel or 19" rack mount IP class: IP20-X 12" W x 11" H x 10" D (0.5 cm x 27.9 cm x 25.4 cm) 17 lbs max (7.7 kg) APPROVALS ISO: Manufactured under an ISO9001 registered system. UL: UL approved CSA: CSA approved : Conforms to EN 55011/CISPR 11, EN , Conforms to IEC 947-1, *Specifications subject to change without notice. 9

13 orhelp,press Windows Application-489 Actual-ChartRecorder A = 0 C = 0 B = 0 AMPS 489 STATUS GENERATOR STATUS OUTPUT RELAYS 489 IN SERVICE BREAKER OPEN R1 TRIP SETPOINT ACCESS BREAKER CLOSED R2 AUXILIARY COMPUTER RS22 HOT STATOR R AUXILIARY COMPUTER RS485 NEG. SEQUENCE R4 AUXILIARY AUXILIARY RS485 GROUND R5 ALARM ALT. SETPOINTS LOSS O IELD R6 SERVICE RESET RESET VT AILURE POSSIBLE MESSAGE NEXT BREAKER AILURE PROGRAM PORT SETPOINT MESSAGE ACTUAL ESCAPE 1 2 VALUE ENTER. HELP E.cdr 489 STATUS GENERATOR STATUS OUTPUT RELAYS 489 IN SERVICE BREAKER OPEN R1 TRIP SETPOINT ACCESS BREAKER CLOSED R2 AUXILIARY COMPUTER RS22 HOT STATOR R AUXILIARY COMPUTER RS485 NEG. SEQUENCE R4 AUXILIARY AUXILIARY RS485 GROUND R5 ALARM ALT. SETPOINTS LOSS O IELD R6 SERVICE RESET VT AILURE RESET POSSIBLE MESSAGE BREAKER AILURE NEXT PROGRAM PORT SETPOINT MESSAGE ACTUAL ESCAPE 1 2 VALUE ENTER. HELP Generator Management Relay 489 SR Generator Management Relay TM Software The 489PC software is a robust, Windows -based application. Information can be accessed locally through the keypad and display, or via PC. The 489PC software can display actual values over time in a graphical format, which may be useful in troubleshooting situations. 489 setpoint files may be saved to a disk, printed, and downloaded to the SETTINGS save on disk send to 489 print A = 0 C = 0 B = 0 AMPS E4.cdr The intuitive click and point software simplifies setpoint programming and relay interrogation. Setpoint files for each generator may be stored, printed for verification, and downloaded to the 489 for error free setpoint entry. The entire 489 manual is conveniently included in the 489PC program s help file, allowing the user to easily access information while programming the relay. The documentation and illustrations can be printed or pasted into other Windows applications. URPC Program The 489 is supported by the Windows -based URPC program, allowing the use of advanced functions including creating single-line diagrams, annunciator panel viewing, metering and simple programming changes. Additionally, the user can access multiple 489s or other devices for metering in real time. Product Upgrades lash memory technology allows product upgrades without unit removal. irmware upgrades may be downloaded to the unit via the RS22 ports. 489 Guideform Specifications or an electronic version of the 489 guideform specifications, please visit: Multilin/specs, fax your request to or to literature.multilin@indsys.ge.com. Ordering 489 * * * 489 Base unit generator management relay P1 P5 LO HI A1 0 1 ma analog outputs A ma analog outputs Current transformer inputs: 1 A CT secondaries Current transformer inputs: 5 A CT secondaries Control power: DC: V; AC: Hz Control power: DC: V; AC: Hz Order online save time Accessories 489PC Software: Shipped free with 489 DEMO: Metal carry case in which 489 unit may be mounted 19-1 PANEL: Single cutout for 19" panel 19-2 PANEL: Double cutout for 19" panel SCI MODULE: RS22 to RS485 converter box, designed for harsh industrial environments Phase CT: 50, 75, 100, 150, 200, 250, 00, 50, 400, 500, 600, 750, 1000 HG, HG5, HG8: or sensitive ground detection on high resistance grounded systems 1 /8" Collar: or shallow switchgear, reduces the depth of the relay by 1 /8" " Collar: or shallow switchgear, reduces the depth of the relay by " IP54 Collar Dual mounting available with the 19-2 panel NOTE: or dimensions see SR amily brochure. Generator Management Relay is a trademark of GE Multilin. enervista enabled See page

14 Digital Generator Protection Protection, control, monitoring and recording functions for AC generators in a single compact package. eatures and Benefits High dependability and security Extensive self-diagnostic routines Redundant power supply Adaptive sampling frequency for better protection during startup Extensive recording capabilities (last 100 events, three fault reports) Oscillography (120 cycles) Compact to reduce space requirements Modular construction for easy maintenance Applications Any size AC generators driven by steam, gas and hydraulic turbine Protection and Control Stator differential 100% stator ground faults Current unbalance Monitoring and Metering Negative sequence current Third harmonic voltages User Interfaces 16 character LED display, 20 button keypad Two RS22 ports GE Multilin 41

15 DGP Digital Generator Protection Protection and Control The DGP is a Digital Generator Protection system for any size of AC generator driven by steam, gas or hydraulic turbine. A high degree of security is provided via extensive self-diagnostics and an optional redundant power supply. Protection features include: Current Unbalance The DGP protects the generator from heating caused by current unbalance, using a formula based on the negative sequence component of the stator current. A linear reset allows the machine to cool down, and an alarm function is operated by the negative sequence component. Stator Differential High-speed protection during internal phase-to-phase faults and three-phase faults is provided. This function can provide high-speed phase-to-ground protection provided the neutral of the machine is grounded or another machine operating in parallel is grounded. Anti-Motoring The DGP includes a one or twostep anti-motoring reverse power function with individual time delay adjustments. One step can be used for sequential tripping of the generator, in which the turbine is tripped first. This step is enabled when closing of turbine inlet valves is indicated by digital input. The trip sequence is then continued when its delay time elapses. The second step is intended to provide backup to the sequential trip. If the sequential trip is not enabled, the two devices can be used as two-step reverse power functions with independent timers. Ground Overcurrent This inverse overcurrent function can be used to detect stator ground faults in a high or low resistance grounded generator system. Time Overcurrent with Voltage Restraint Protection against prolonged generator contribution to a fault on the system is provided through a time-overcurrent function with voltage restraint, as part of the system backup protection. This function is controlled by a fault detector and a Voltage Transformer use ailure (VT) condition. Stator Ground Two overlapping zones provide stator ground fault detection in a high impedance grounded generator system. Zone 1 uses a fundamental frequency neutral overvoltage to cover about 95% of the stator winding, based on the pickup voltage setting. Zone 2 is based on comparing the third harmonic voltage at the generator neutral with the total third harmonic voltage generated. This function is designed to cover 15% of the neutral end of the stator windings, and is controlled by fundamental and third harmonic voltage thresholds. Together the two zones cover 100% of the stator windings. Alternatively, Zone 1 can be used as a generator-bus ground detector in a high-impedance grounded or ungrounded system. The DGP uses two overlapping zones to detect stator ground faults. Terminal end Neutral end Zone 1 (64G1) 95% Zone 2 (64G2) 15% A.CDR Loss of Excitation When a synchronous generator loses excitation, it acts as an induction generator: running above normal speed, operating at unctional Block Diagram 52G GEN. TO POWER SYSTEM GSU Transf. DEVICE PROTECTION DGP G2 51V V VT 87G 64G1 64G2 27TN 51GN VT RS22 RS22 TRIP ALARM To LAPTOP PC To MODEM A8.CDR 87S Generator differential 46 Current unbalance 40 Loss of excitation 2 Anti-motoring 51V TOC with voltage restraint 64G 100% stator ground 51GNP Stator ground overcurrent 27TN rd harmonic neutral undervoltage 24 Overexcitation 59 Overvoltage 27P Undervoltage 81 Over and underfrequency 50/27 Accidental energization VT Voltage transformer fuse failure 42

16 DGP Digital Generator Protection reduced power, and receiving its excitation (vars) from the system. The DGP s loss of excitation function includes two mho characteristics featuring individually adjustable reach, offset, and time delay. The DGP will block this function if it detects a negative sequence voltage, which would indicate a VT, or an external VT signal. The first zone mho function can be set to detect severe cases of excitation failure with a short time delay. The second zone mho function can be set to detect all the excitation failure cases with a longer time delay setting. This permits system security during stable power system swing conditions. Overexcitation Protection Provided through a Volts/Hertz function with inverse and instantaneous time delay characteristics. The overexcitation protection includes trip and alarm functions computed for each of the threephase voltages. The trip function incorporates a user-configurable linear reset characteristic to mimic machine cooling. Over and Undervoltage The undervoltage function consists of a positive sequence undervoltage with a userselectable inverse or definite time characteristic. The overvoltage function consists of a positive sequence overvoltage with an inverse characteristic. A linear reset characteristic is incorporated for both functions. The overvoltage function can be used as a backup to the overexcitation. The undervoltage function also provides voltage phase reversal protection. Over and Underfrequency Up to four steps of protection are included, each with an adjustable time delay. The steps are controlled by an adjustable positive sequence voltage level. Voltage Transformer use ailure (VT) When a fuse failure is detected, the DGP will block tripping by the loss of excitation and TOC with voltage restraint functions, as they may continue operating with a loss of AC. Accidental Energization The DGP system uses internal logic to detect accidental energization of the generator. Configurable I/Os Two general purpose contact converter inputs allow easy connection of external trip or alarm contacts, permitting use of the event log and configurable outputs of the DGP. An optional input can be configured to disable all protections functions. Eight configurable output relays, four trip and four alarm, allow the user to select any desired combination of the functions. Output relays can be controlled remotely or locally through a secured authorization or hardwire jumper. The control functions of the DGP can operate output relays locally or remotely. Configurable Logic The DGP allows strategic modification of internal logic to favor either security or dependability. This can be accomplished either by software settings or automatically by a "Generator Offline" contact input. This feature allows disabling of selected functions when the generator is offline and modification of the Accidental Energization logic. Contact Expansion Unit The DEC 1000 unit is an intelligent contact expansion unit that provides an additional 11 output relays, five with contacts in C configuration, and six with normally open contacts. Eleven LEDs indicate operation of contacts, and a reset button tests and resets the unit. Available for CA model only. The DEC 1000 expands the number of outputs controlled by the DGP. Monitoring and Metering The DGP features advanced metering and event recording functions which include: Self-Tests and Diagnostics Self-test routines are performed during power-up and continue to run in the background during service. ailures are categorized as either a critical or non-critical alarm. Appropriate protective functions are automatically disabled during a critical alarm, helping to maintain the high security of the DGP. The DGP also has a RELAY TEST menu which facilitates installation by allowing testing of individual protective functions and output relays for the protection system. Trip Circuit Monitor This function consists of the Trip Voltage Monitor (TVM) and the Trip Current Monitor (TCM) for up to four trip output contacts. The TVM detects any discontinuity in the external trip circuit and produces a non-critical alarm. The TCM confirms energizing of the trip circuit when a trip is issued by the DGP. To protect the output contacts the TCM may be used to seal-in the trip output as long as trip current is flowing. Metering The DGP provides the following metering values: Currents (I a, I b, I c ) Voltages (V a, V b, V c, or V ab, V bc, V ca ) 4

17 DGP Digital Generator Protection Angles of I and V Negative sequence current (%I 2 ) Third harmonic voltages (phase/neutral) Watts (three-phase) Vars (three-phase) requency Contact inputs (status) The currents, voltages, watts, and vars can be metered as either primary or secondary values to an accuracy of %. Event Recording The last 100 events are time tagged in milliseconds and stored in the DGP's memory. Event data is available via the RS22 ports and the optional printer port for analysis. The DGP stores the last 100 events. GEN Simulator DGP Events Station ID:MALVERN Generator ID:MODEL GENERATOR 10/29/9 14:40: G TRIP CIRCUIT OPEN ALARM O 10/29/9 14:9: G TRIP CIRCUIT OPEN ALARM ON 10/29/9 14:: G2 TRIP SIGNAL RESET 10/29/9 14:: O 10/29/9 14:: O 10/29/9 14:: ON 10/29/9 14::1.997 TURBINE INLET VALVE CLOSED 10/29/9 14::28.42 GENERATOR O-LINE 10/29/9 14:: G2 TRIP SIGNAL ON 10/29/9 14:: ON 10/29/9 14:27: GENERATOR ON-LINE 10/29/9 14:27: TURBINE INLET VALVE OPEN 10/29/9 14:26: G TRIP SIGNAL RESET 10/29/9 14:26: G1 O 10/29/9 14:26: TURBINE INLET VALVE CLOSED 10/29/9 14:26: GENERATOR O-LINE 10/29/9 14:26: G TRIP SIGNAL ON 10/29/9 14:26: G1 ON 10/29/9 14:25: GENERATOR ON-LINE 10/29/9 14:25:8.202 TURBINE INLET VALVE OPEN 10/28/90 16:2:1.642 REMOTE - SETTINGS CHANGE DONE 10/28/9 16:2:0.882 REMOTE - SETTINGS CHANGE STARTED ile Quit Graphs Reports Setup exit 1=Help 20.0 AMPS IAS AMPS IBS ICS VOLTS VA VOLTS VB VC A1.CDR The DGP can store 120 cycles of oscillography. TEST_LO.OSC: ault Reports The DGP stores the last three fault reports in its memory. A fault report is generated by any protective function trip or by an externally triggered input. Oscillography The DGP can capture and store 120 cycles of oscillography data which can be divided into one, two, or three partitions. Up to 20 prefault cycles can be captured. In addition to 12 analog waveforms (currents and voltages) the DGP captures internal logic flags and contact I/O status. The DGP settings at time of capture are also stored as part of the data, along with the fault report. User Interfaces The 489 allows users ease of access through: Keypad and Display A 20 button keypad and a 16 character LED display allow the user easy access to settings and data. Two distinct security passwords limit tampering. LET RIGHT SAMPLE: ELAPSED TIME: 12.7 MS (59.68 HZ) VALUE: IAS IBS ICS VA VB VC DI: SEC AMPS SEC VOLTS A1.CDR A keypad and display are provided for local user interface. LED Indicators Over eighteen LEDs on the front panel provide easy and immediate indication of the phase and fault type. A two-color LED (red and green) is also provided to indicate the relay status. Communications Two RS22 serial ports are provided on the DGP, one on the front and one on the rear. The port on the front allows easy local user interface via a laptop computer. The rear port can be used to interface with a remote computer via modem. There are three levels of security password provided for remote communications. or added security, hardwire jumpers can disable setting changes and control actions from a computer. or remote link communications, DGP offers a choice of **GE- MODEM or *ModBus protocol, each supplied with a copy of GE- LINK remote communication software. In addition to the GE- LINK, a copy of the DGP-DATA software is also supplied with the relay for oscillography data analysis of DGP data. * ModBus available with CA model only. Requires an optional RS485 to RS22 converter. ** New Windows version of GE-LINK for ModBus protocol. Time Synchronization An IRIG-B input is provided for time synchronization via satellite signal. Drawout Construction The drawout construction of the DGP case allows for all internal components to be withdrawn from the front of the relay. 44

18 DGP Digital Generator Protection eatures ront View MAN MACHINE INTERACE MODULE (MMI) 16 character alpha-numeric LED display for fault report, metering values, alarm messages, setting parameters etc. Keypad includes 20 buttons for user-friendly local interface with the DGP Dual color LED indicates relay status RS22 port facilitates connection of lap-top PC POWER SUPPLY MODULES are located behind the cover plate. Module PS2 is optional. DIGITAL INPUT & TARGET MODULE (DIT) LED targets indicate ALL the functions that operated during a trip event. 57A 57B 57C 51V-A 51V-B 51V-C 24A 24B 24C 40G1 40G2 64G1 64G2 81-U 81-O VT MMI01 MODULES System Procesor (SSP), Analog Interface (ANI), Data Acquisition (DAP), & Digital Signal Processor (DSP) modules are plug-in type for ease of maintenance and trouble-shooting. MAGNETIC MODULES (MGM) Two identical modules contain CT s, VT s, output relays, etc. and are interchangeable. PS1 PS1 TPM PS2 PS2 MGM781 DIT101 DIT101 MMI01 MMI01 SSP01 ANI01 DAP201 DSP401 SSP01 ANI01 DAP201 DSP401 MGM781 TPM OPTIONAL TEST BLOCKS facilitate injection of analog input signals and monitoring of DGP outputs for test purpose without disturbing field wiring RATINGS IN 5 AMP VN 100/140 VOLTS REQ50/60 Hz RATINGS IN 5 AMP VN 100/140 VOLTS REQ50/60 Hz Rear View RS22 PLUG (PL-1) provides connection to modem for remote communications or an interface to station integration system. OPTIONAL SERIAL PORT (PL-2) Can be used to connect a printer for automatic/manual printout of data or a Contact Expansion Unit DEC1000. OPTIONAL PLUG (PL-) Available for IRIG-B signal input to synchronize the DGP internal clock to a common reference clock e.g. GPS receiver. PL-1 PL-2 PL- OUTPUT RELAY CONTACTS 8 configurable relays 8 predefined relays AE BE DIGITAL INPUTS: configurable contact inputs predefined contact inputs CONTROL POWER DC control power input A B CT INPUTS 6 phase CT inputs 1 residual CT input 1 residual/neutral CT input AG AH BG BH VT INPUTS: phase VT inputs, wye or delta 1 neutral VT input A8.CDR 45

19 DGP Digital Generator Protection Typical Wiring C(B) A A B B(C) C AH 12 AH AH AH AH AH AH AH AH AH BH BH BH BH BH BH BH BH BH BH BH BH AH AH GND VOLT IAR IBR ICR INR IAS IBS ICS INS VA VB VC CURRENT VOLTAGE INPUTS GROUND BUS AG 1 AG 2 BH 14 BG 8 BG 7 BG 6 BG 5 BG 4 BG BG 2 BG 1 BE 4 BE BE 2 BE 1 CONTROL POWER GENERATOR O LINE TURBINE INLET VALVE LIMIT SWITCH EXTERNAL TRIP 1 EXTERNAL TRIP 2 OSCILLOGRAPH TRIGGER EXT. VT/ DISABLE PROT. INPUTS GE Multilin DGP Digital Generator Protection OUTPUTS 94G 94G1 94G2 94G 74A 74B 74C 74D 74 TRIP A (DRY) TRIP A TRIP B (DRY) TRIP B TRIP C (DRY) TRIP C TRIP D (DRY) TRIP D ALARM A ALARM B ALARM C ALARM D VT USE AIL BE 10 B 10 BE (+) 14 B (-) 14 BE 9 B 9 BE 1 (+) B (-) 1 BE 8 B 8 BE (+) 12 B (-) 12 BE 7 B 7 BE 11 (+) B (-) 11 AG 14 A 14 AE 14 AG 1 A 1 AE 1 AG 12 A 12 AE 12 AG 11 A 11 AE 11 AG 10 A 10 AE 10 AG 6 RS-22 DB9 (RONT) DOR 12 TEST PICKUP A 6 AE 6 AG 5 RS-22 DB25 (REAR) PL1 DOR 1 TEST TRIP A 5 AE 5 PRINTER or DEC1000 Contact Expansion Unit PRINTER IRIG-B DB25 (REAR) PL2 (REAR) PL DOR 9 74 NC 74 CR POWER SUPPLY ALARM 1 POWER SUPPLY ALARM 2 SPARE SEL TEST NON CRITICAL SEL-TEST CRITICAL AG 9 A 9 AE 9 AG 8 A 8 AE 8 AG 7 A 7 AE 7 B 5 BE 5 B 6 BE A8.CDR 46

20 DGP Digital Generator Protection DGP Technical Specifications PROTECTION In = 1 A In = 5 A General differential (87G): Differential current pickup: A A % slope factor: Current unbalance (46A, 46T): Neg. seq. current pickup: A A Machine constant (46T): Alarm time delay (46A): 1 9 sec 1 9 sec Loss of field (40): Zone 1 and Zone 2 center: Ω Ω Zone 1 and Zone 2 radius: Ω Ω Zone 1 and Zone 2 timer: sec sec Anti-motoring (2-1 & optional 2-2): Reverse power: W W Time delay: sec Stator ground (64G1 & optional 64G2): Neutral OV pickup: 4 40 V Time delay (for 64G1): sec Time delay (for 64G2): sec rd harmonic neutral undervoltage (27TN): U/V setpoint: V Time delay: sec Overexcitation, (24T, 24I, 24A): V/Hz pickup: PU Time factor (24T-inverse): Time delay (instantaneous): sec Time delay (24A-alarm): sec Rate of reset: sec Undervoltage, optional (27): U/V set point: V Time factor: sec Curve select: Inverse/definite time Overvoltage (59): O/V set point: V Time factor: sec Over and underfrequency, up to four steps (81): O/ set point (each step): Hz U/ set point (each step): Hz Time delay (each step): sec Time delay (U/ step 1): sec System Backup (51V): Overcurrent pickup: A A Time factor: sec sec *Specifications subject to change without notice. METERING RATINGS Nominal frequency: 50 or 60 Hz requency tracking: 0 80 Hz Nominal voltage (phase-phase): VAC Rated current: I n = 1 or 5 A Maximum permissible current: Continuous 2 x I n Three sec 50 x I n One sec 100 x I n Maximum permissible AC voltage: Continuous 280 VAC One min (once per hour) 490 VAC ACCURACY RMS measurements: ±% Phase angle measurements: ±1 requency measurements: ± 0.01 Hz Timers: ± % of setting Data time tag resolution: ±1 ms POWER SUPPLY DC control voltage: 48 VDC VDC 110/125 VDC VDC 220/250 VDC VDC INPUTS BURDENS Current circuits: Voltage circuits: DC battery: Power supply: or contact converters: COMMUNICATIONS INTERACE DATA System interface: Ω, 5 for I n = 5 A 0.12 Ω, 0 for I n = 1 60 Hz < VA, 60 Hz 0.40 VA, 50 Hz 19 W with 1 supply 25 W with 2 supplies 2.5 ma at rated voltage DB25, RS22 port rear panel DB9, RS22 port front panel IRIG-B port rear panel (optional) Printer port rear panel (optional) OUTPUTS CONTACT DATA Trip outputs (4 programmable relays, 2 contacts each) Trip contacts: Continuous rating = A Make and carry 0 A per ANSI C7.90 Interrupting = 60 VA inductive, maximum 250 V or 0.5 A Alarm outputs (4 programmable & 5 predefined relays, 1 contact each) Alarm contacts: ENVIRONMENTAL Ambient temperature range: Storage: Operation: Humidity: TYPE TESTS Insulation test voltage: Impulse voltage withstand: Interference test withstand: Vibration test withstand: PACKAGING Net weight: Dimensions: Height: Width: Depth: APPROVALS UL file no. Continuous rating = A Make and carry 5 A for 0 sec Interrupting = 60 VA inductive, maximum 250 V or 0.5 A Trip current monitor sensitivity: 150 ma Trip voltage monitor: 8 00 VDC Digital inputs: 8 00 VDC, 1 ma -0 C to +70 C -20 C to +55 C 95% without condensation 2kV 50/60 Hz, one min 2.8k VDC, one min 5 kv peak, 1.2/50 µsec, 0.5 J SWC, per ANSI C & IEC IEC lbs (2 kg) 14" (52 mm) 8 rack units 19" (484 mm) standard 19" rack 14" (56 mm) E5788 Dimensions RONT VIEW SIDE VIEW 8 REQ'D. 0.28" Dia. (7) PLUG PANEL CUTOUT 4.00" (102) 1.94" (54) 1.88" (52) *.75" (86) CUTOUT 2.94" (75) TERMINAL BLOCKS 4.00" (102) LATCH Inches (mm) 19.00" (48) 0.1" (8) 1.0" (1) * minimum to remove cable when req'd. 1.0" (25) 17.25" (48) 18.8" (467) 1.50" (8) A DWG DEC1000 Mounting RONT VIEW 19.00" (48) SIDE VIEW 8.1" (206) 1.20" (0.4) 0.28" Dia. (7) 4 Pl. CUTOUT & DRILLING PATTERN 18.2" (465) 17.5" (441).40" (87).54".00" (90) (76) CUTOUT INCHES (mm) 0.26" (7) A2.dwg 47

21 DGP Digital Generator Protection DGP Guideform Specifications or an electronic version of the DGP guideform specifications, please visit: Multilin/specs, fax your request to or to aster orders via the web Ordering Note that the DGP relay with special configuration of printer port is required for the DEC1000 to function properly. DGP * * * * * * DGP Digital Generator Protection 1 1 A rated 5 5 A rated 0 One power supply, 48 VDC 1 One power supply, 110/125 VDC 2 One power supply, 220/250 VDC Two power supplies, 48 VDC 4 Two power supplies, 110/125 VDC A With test blocks, gray case B Without test blocks, gray case A GE-MODEM communication protocol B ModBus communication protocol (not available with unction Group A/B) A unction Group A See DGP B unction Group B Selection Guide* C unction Group C on the right A Revision level Optional RS485 to RS22 converter available for use with ModBus version DEC 1000A *** * 00C DEC *** Select the three digit code from the DEC Selection Guide on the right or fill in desired function assignment for the DEC1000 output relays R1-R11 using Table 1 and submit with the order. Codes 001 to 005 are already assigned and are available as described. Any protection function available in the companion DGP relay can be selected for the DEC output relay assignment Vps = VDC H Vps = VDC } *DGP Selection Guide UNCTION GROUP UNCTIONS AND EATURES A B C Stator differential 87G X X X Current unbalance 46 X X X Loss of excitation 40-1, -2 X X X OC voltage restraint 51V X X X Stator ground 64G1 (fundamental OV) X X X Overexcitation 24 (Volts/Hz) X X X Overvoltage 59 X X X Accidental energization logic X X X Sequential trip logic X X X VT fuse failure X X X Oscillography capture X X X IRIG-B input X X X Anti-motoring 2 2 setpoints 1 setpoint 2 setpoints Stator ground 64G2 (rd Harm. UV) X X Neutral OC 51GN X X Undervoltage 27 X X Stator GND 27TN X X Underfrequency 81-U 4 setpoints 2 setpoints 4 setpoints Overfrequency setpoints 2 setpoints 2 setpoints Printer output X X DEC1000 compatible X Communication ports 2-RS22 2-RS22 2-RS22 Example: DGP54BBCA DGP rated 5 A, 50/60 Hz, 110/125 VDC redundant power supplies, no built-in test blocks, ModBus protocol, function group C, revision A. The following special DGP systems are also available. Refer to factory for other special requirements. DGP***AAA-0101 Similar to "AAA" except single voltage-rated digital inputs, special logic for function 51V and separate terminals for power supply inputs. DEC Selection Guide CODE R1 R2 R R4 R5 R6 R7 R8 R9 R10 R O U1 81U G G G-A 87G-B 87G-C G➀ 64G➁ GN 24➀ 87G➀ 64G➁ GN 24➀ T 51V➀ 59 81O1 81U1 46T 51V➀ 59 81O1 81U T 51V➀ 59 64G1 87G➀ DI DI4 2-1 ➂ ➂ ➀Indicates any phase A, B, or C ➁Indicates any zone 1 or 2 ➂Code assigned by GE 48

22 Generator Backup Protection System backup for generators and transmission lines. eatures and Benefits Waveform sampling of current and voltage inputs High-resolution oscillography and playback our zones of phase and ground mho distance functions Out-of-step blocking and tripping available Phase and ground overcurrent instantaneous backup Ground time overcurrent backup User-configurable I/Os Integrated RMS metering Horizontal and vertical models Applications Backup protection for generators or transmission lines Three-phase tripping applications enervista.com compatible (see page 275) Protection and Control Out-of-step tripping Over and undervoltage functions Monitoring and Metering ault location, event and fault recording Currents, voltages, watts, vars and frequency User Interfaces LCD and keypad RS22 and RS485 serial ports GE Multilin 49

23 LPS-O Generator Backup Protection Protection and Control The LPS-O provides backup protection for generators and transmission lines. Advanced protection functions include: Distance our zones of phase step distance protection are provided. unctions are positive sequence voltage polarized mho characteristics. The reach of the three forward looking zones can be compensated for a delta-wye transformer. Zone 4 is reversed and disregards any transformer between the relay and the fault in the forward direction. Zones 1, 2,, and 4 each include independent timers for phase step distance protection. Out-of-step blocking monitors swing condition and blocks tripping. Out-of-step tripping logic is provided with a choice of two or three mho type characteristics with adjustable shapes. orward and reverse share a common maximum reach angle. Loss of synchronism or a power swing between two areas of the power system is detected by measuring the positive sequence impedance seen by the relay over a period of time as the power swing develops. Directional Ground Overcurrent The ground directional functions are forward and reverse negative sequence current and voltage operated. The ground instantaneous and TOC functions can be independently set with directional control. The ground overcurrent functions can be controlled by the directional functions. Both IOC and TOC functions can be set as nondirectional or directional. The LPS-O provides an adaptive sensitive current disturbance detector (fault detector) and an unbalanced current alarm to detect open or shorted CT leads. Voltage Three single-phase under and overvoltage detectors and a positive sequence overvoltage detector are provided. use failure logic detects a full or partial loss of AC potential and blocks tripping of distance and directional functions. The LPS-O has a three-wire voltage input suitable for either delta or wye connected VTs. Scheme Logic The LPS-O provides userprogrammable logic with up to 40 gates and eight timers. Manual Breaker Control Manual circuit breaker tripping or closing can be done locally or remotely. Multiple Settings Groups Two separate groups of protection settings may be stored in the LPS-O non-volatile memory. The active settings group can be selected by the user. unctional Block Diagram Configurable I/Os All 12 contact converter inputs and 20 contact outputs (except for alarms) are user-configurable. SCR tripping outputs are available for high speed operation. Monitoring and Metering The LPS-O provides sophisticated monitoring and metering functions that include: Trip Circuit Monitor DC battery voltage is monitored across each open trip contact. An alarm triggers when the voltage becomes virtually zero. A current sensor in series with each trip contact is provided, to log an event message on the DC trip current status following the trip. Metering The LPS-O provides the following RMS metering values: Current (I a, I b, I c, I n ) Voltage (V ab, V bc, V ca ) Watts (three-phase) Vars (three-phase) requency The currents are calculated for each phase, and voltages are calculated between phases. The accuracy is 1% of rated current and voltage. The phasor value (magnitude and angle) of the phase currents and voltages are also displayed. Overcurrent Backup The LPS-O provides instantaneous phase and ground overcurrent functions. The phase backup consists of an instantaneous function. Ground overcurrent backup consists of IOC and TOC functions. The TOC function includes four selectable and one programmable curve. G Metering 50P 21P 78 LPS-O 67N 67P 50/ 51G lpso_fbd.ai 50

24 LPS-O Generator Backup Protection Event Recording The LPS-O stores up to 150 events with the date and time stamped to the nearest millisecond. This aids the user with determining the sequence of events, facilitating diagnosis and recovery. Oscillography The LPS-O captures current and voltage waveforms and selected internal logic signals at 64 samples per cycle. The unit can store from six events of 72 cycles each to 6 events of 12 cycles each. The time, date, active settings, and fault report are stored with the data capture. Prefault data can be set from one to eight cycles. Oscillography can be triggered by internal or external signals. Internal signals include trip outputs or a programmable logic signal. The supplied out-of-step trip logic features a three second oscillography data file consisting of phasor values of the currents and voltages captured at a rate of one per cycle. The LPS-O has the capability to store the oscillography files in Comtrade format. The LPS-O relay can playback stored waveform files through the relays processor, allowing the user to playback faults with different settings. Breaker Health The breaker health threshold is set by the user to achieve just in time maintenance. When the cumulative value of the three-phase currents exceeds the threshold, an alarm occurs. The user can adjust the threshold for breakers with previous duty. Self-Test Diagnostics Self-test routines are performed during power up and continue in the background during service. ailures are categorized as either critical or non-critical alarm and recorded in the event log. Typical Wiring A B C C(B) B(C) A CONNECTION AS REQUIRED RS22 RS-22 RS-485 RS-22 RS-485 C1 I A D2 D18 D D19 D4 D20 D5 D21 D6 D22 D7 D2 D8 D24 D9 D25 D10 D26 D11 D27 D12 D28 D1 D29 D1 D17 C2 C I AR IB CC1 CC2 CC CC4 CC5 CC6 CC7 CC8 CC9 CC10 CC11 CC12 UNMODULATED IRIG-B 4 WIRE / 2 WIRE C4 I BR CURRENT INPUTS C5 C6 C1 C14 C9 C10 C11 C12 I C ICR Vs Vs Va Vb Vc Vn CONIGURABLE (8.5 TO 00 VDC) PL1 (RONT) PL2A (REAR) PL2B (REAR) PL (REAR) OPTIONAL TRIPPING DIRECTION INPUTS 52 GE Multilin LPS Line Protection System DB-9 DB-25 DB-25 VOLTAGE INPUTS OPTIONAL SINGLE POLE MODEL OUTPUTS CONIGURABLE (SHOWN WITH DEAULT SETTINGS) IXED T1 T2 T T4 T5 T6 C1 C2 A1 A2 A A4 A5 A6 A7 A8 A9 A10 A11 A12 KT1 KT2 KT KT4 AULT LOCATION CRITICAL ALARM POWER SUPPLY ALARM CONTROL POWER SUPPLY A1 A17 CONTROL POWER I/V A8 GROUND SURGE A2 A A19 A4 A20 A5 A21 A6 A22 A7 A2 A8 A24 B27 B11 B28 B12 B29 B1 A9 A25 A10 A26 A11 A27 A12 A28 A1 A29 A14 A0 A15 A1 A16 A2 B1 B17 B2 B18 B B19 B4 B20 B21 B5 B22 B6 B2 B7 B24 B8 B25 B9 B26 B10 D16 D2 B0 B14 B1 B15 B2 B A.CDR GROUND BUS 51

25 LPS-O Generator Backup Protection Time Synchronization An IRIG-B input is provided for time synchronization via satellite signal. Security There are separate remote passwords which permit view only, view and settings changes, or view, settings, and control capability. Software Windows -based software packages are included in the LPS-O instruction book. LPS-O LINK allows communication with the relay using GE protocol XPRESSION BUILDER allows the user to graphically design programmable logic settings and I/O assignments The user may also obtain GE-DATA or GE-OSC to analyze oscillography data. LPS-O Guideform Specifications or an electronic version of the LPS-O guideform specifications, please visit: Multilin/specs, fax your request to or to NOTE: or dimensions see ALPS brochure. enervista enabled See page LPS-O is a trademark of GE Multilin. LPS-O Technical Specifications PROTECTION I n = 1 I n = 5 Positive sequence angle: Zero sequence angle: Zero sequence current : Compensation (K0): Zone 1, 2, and 4 reach: Ω Ω Zone 4 offset reach: (Zone 4 is reversible) Zone 2 timer: sec sec Zone and 4 timers: sec sec Phase instantaneous OC: A A Ground instantaneous OC: A A Ground TOC: A A TOC curves: Inverse, very inverse, extremely inverse, definite and custom RECLOSURE (OPTIONAL) Reclose attempts: 4 Synchronism check: Optional METERING requency: 50 or 60 Hz Voltage (ph-ph): VAC Current (I n ): 1 or 5 A Maximum permissible current: Continuous: A for I n = 1 A 15 A for I n = 5 A Three sec: 50 x I n One sec: 100 x I n Maximum permissible AC voltage: Continuous: 18 VAC (ph-n) One minute:.5 x rated MONITORING Records: 6 6 Record length: cycles Pre-fault cycles: 1 8 Samples per cycle: 64 INPUTS Contact converter inputs: 5 00 VDC (jumper selectable) BURDENS Current circuits: I n = Ω at 5 I n = Ω at 0 Voltage circuits: 50 Hz 0.20 VA 60 Hz 0.15 VA DC battery: Power supply: <20 W Contact converters: 2.5 ma each POWER SUPPLY Control voltage: Range: 48 VDC VDC 110/125 VDC VDC 220/250 VDC VDC Ordering LPS * * * * * * * * * * * * LPS O B Accessories: 158D758P1 158D759P1 L2 lange for vertical mounting KD lange for vertical mounting OUTPUTS CONTACT RATINGS Trip contact (T1 T6): Trip SCR (T1 T6): COMMUNICATIONS Protocol: ASCII, GE-MODEM Ports: ront: 1 DB9, RS22 Rear: 1 DB25, RS22 and 4 pin Phoenix, RS485 (standard): 1 DB25, RS22 or RS485 optional Display: 4 line liquid crystal display standard Keypad: ull numeric keypad standard INSTRUCTION BOOK Single-pole GEK Three-pole GEK ENVIRONMENTAL Ambient temperature range: Storage: Operation: Humidity: TYPE TESTS Insulation test voltage: -0 C to +75 C -20 C to +60 C 95% without condensation 2 kv, 50/60 Hz, 1 min (high-pot) ANSI C7.90 IEC Impulse voltage withstand fast transient: 5 kv peak, 1.2/50 µs, 0.5 J IEC ANSI C Surge withstand capability (SWC): ANSI C IEC Radio frequency interference withstand (RI): ANSI C IEC Electrostatic discharge (ESD): IEC *Specifications subject to change without notice. Continuous = 5 A Make & carry = 0 A per ANSI C7.90 Interrupting: 25 VA Pickup <4 ms Continuous = 5 A Make & Carry = 0 A per ANSI C7.90 Auxiliary (A1 A12): Continuous = 5 A (C1, C2): Make & carry = 0 A Interrupting: 25 VA Pickup <8 ms High speed (KT1 KT4): Continuous = 0.5 A Max voltage = 280 VDC = Pickup <0.5 ms Line protection system Phase distance relay with out-of-step tripping (system phase backup) Revision level B Three-phase tripping logic 5 5 A rated current U or applications without series capacitors 0 48 VDC battery voltage 1 110/125 VDC battery voltage 2 220/250 VDC battery voltage 1 SCR trip outputs and contact channel interface 2 Contact trip outputs and contact channel interface ront RS22 com port and 2 selectable RS22/RS485 rear port (GE-MODEM/ASCII) H Horizontal mounting V Vertical mounting E Extended oscillography memory 1 With out-of-step tripping N No reclosure 52

26 M amily Digital Machine Protection Relay Three-phase protection for electrical machines. eatures and Benefits Advanced 16-bit microprocessor Configurable logic, curves, digital I/Os and LEDs lash memory for field upgrades Two settings groups Drawout case for easy maintenance AC/DC power supply Access via front panel keypad or communication links Compatible with M amily systems in half or full 19" racks Applications Protection and control for generators, motors, and transformers enervista.com compatible (see page 275) Protection and Control Thermal image protection Unbalance Overcurrent and undercurrent Monitoring and metering Analog/digital oscillography 24 event recording Restricted ground fault User Interfaces M+PC software for setting and monitoring ront RS22 and rear RS485 ports using ModBus RTU protocol up to 19,200 bps GE Multilin 55

27 MIG M amily Digital Machine Protection Relay Protection The MIG Digital Machine Protection Relay is designed specifically for small generators and motors. As part of the M amily, the MIG provides superior protection which includes: Thermal Image Unit The thermal image algorithm protects the machine from negative sequence components that can cause overheating in the stator and rotor, as well as overload. an additional ground sensor. Alternatively, for more sensitive detection, an additional core balance (zero sequence) ground sensor encircling the three-phase conductors can be used. Ground IOC Units This protection has the same settings and features as the phase IOC unit. unctional Block Diagrams Undercurrent This function is used in motor applications to detect a decrease in machine current caused by load decrease. The unit can be set as an alarm or trip. Starts/Hour and Time To Restart This feature counts the number of machine starts during a time window to ensure they do not Unbalance Protection against rotor damage is provided through definite time or time curve models, to minimize heating caused by the negative sequence current generated by supply voltage unbalance. Three-Phase TOC This protection can be set from 0.1 to 2.4 times I n. our separate ANSI or IEC TOC curves can be selected including definite time, normal inverse, very inverse, and extremely inverse. Additionally, a user configurable curve is available. Different time multipliers may be set for each curve, optimizing curve selection for coordination with fuses, machines, motors, transformers, or other equipment. ANSI IEC/BS142 normal inverse IEC A very inverse IEC B extremely inverse IEC C definite time definite time Phase IOC Units Adjustable phase IOC allows the pickup setpoint to be set from 0.1 to 0 times I n and a time delay from 0 to 100 seconds G GEN 52M M P 50P 50G 51G MIG Digital Machine Protection P 50P G 51G GENERATOR APPLICATION MIG Digital Machine Protection METERING OSCILLOGRAPHY EVENT RECORDING CONIGURABLE I/O CONIGURABLE LEDS CONIGURABLE LOGIC MOTOR APPLICATION METERING OSCILLOGRAPHY EVENT RECORDING CONIGURABLE I/O CONIGURABLE LEDS CONIGURABLE LOGIC A2.ai TRANSORMER APPLICATION Ground TOC This feature has the same curve selection choices and settings as the phase TOC unit. The ground signal is normally derived as the residual sum of the three-phase CTs eliminating the need for P 50P MIG 50G 51G 87R METERING OSCILLOGRAPHY EVENT RECORDING CONIGURABLE I/O CONIGURABLE LEDS CONIGURABLE LOGIC A2.ai 56

28 MIG M amily Digital Machine Protection Relay exceed the number programmed by the user. If the number is exceeded, the unit blocks any new attempts and keeps the trip contact closed during the restart block time. Locked Rotor The MIG provides protection during extra-long start-ups where excessive overcurrent conditions can damage rotors. This protection is critical for power applications where the motor drives the generator into service. LINE Typical Wiring Note: Only for reference. or particular connections for any MIG model, please refer to its external connections drawing. A B C << << << CIRCUIT BREAKER >> >> >> PHASE A CT ZERO SEQUENCE GROUND SENSING CONNECTION PHASE B CT PHASE C CT ZERO SEQUENCE GROUND CT C1 C2 C C4 C5 C6 C7 C8 IA N IB N IC N IG N CURRENT INPUTS 20 A MAX CIRCUIT BREAKER LOCATED BEORE POWER INPUT NOTE: 14 AWG wiring recommended (2.5 mm 2 ) AC or DC A1 +/L A2 -/N POWER Internally fused 1A/250V fast blow ALTERNATIVE CT WIRING OR RESIDUAL GROUND SENSING PHASE A CT PHASE B CT PHASE C CT C1 C2 C C4 C5 C6 C7 C8 IA N IB N IC N IG N CURRENT INPUTS A B C Restricted Ground ault Restricted Ground ault (RG) protection provides sensitive ground fault detection for low magnitude fault currents that may not be detected by other protection functions. This protection is often applied to machines and transformers having impedance grounded wye windings. Inputs and Outputs The factory configuration of MIG inputs and outputs can be easily modified using M+PC software. Two digital inputs and six relay outputs are provided, four of them programmable. These configurable outputs can be assigned either to a set of pre-configured values, or to an OR/NOT combination of the same values. MIG Guideform Specifications or an electronic version of the MIG guideform specifications, please visit: Multilin/specs, fax your request to or to literature.multilin@indsys.ge.com. GE Multilin 52a 52a TRIP TRIP COIL - MIG << >> COIL A5 Digital Generator CONTROL Protection POWER + A6 CAUTION: ork or ring terminals must be used on the termainal block. NOTE: Suitable disconnect devices (switch or circuit B5 breaker) recommended located near the relay. OVERVOLTAGE CATEGORY: II B6 (*) Terminals B12, A12 and B11 must be connected to SELV (safety extra-low voltage) parts (on the PLC). They are not to be tested for hipot test under any circumstance. A8 CC1 (**) In basic model, inputs and outputs are configured as A9 CC2 A10 COM OUT4: 49 Alarm RS22 SAETY GND GROUND GROUND BUS follows: INPUTS OUTPUTS CC1: Disable 50P unction OUT1: Phase Trip CC2: Disable 50N unction OUT2: Ground Trip OUT: 50 Trip Ordering TRIP READY DIGITAL INTPUTS(**) DIGITAL OUTPUTS(**) RS485 SDA B12(*) SDB A12(*) GND B11(*) JX COM OUT4 OUT OUT1/2 OUT1 B7 B8 B9 B10 A7 A B GROUND INPUT PROGRAMMABLE CONTROLLER MIG P * * * E O 00 * 00 * MIG Digital machine protection relay P Three-phase + ground relay A ANSI curves I IEC curves 1 Phase CT I n = 1A (pickup range: A) 5 Phase CT I n = 5A (pickup range: A) 1 Ground CT I n = 1A (pickup range: A) INPUT A2.ai 5 Ground CT I n = 5A (pickup range: A) N Sensitive ground CT I n = 1 A (pickup range: A) VDC auxiliary voltage (range: VDC) H VDC (range: VDC) and VAC (range: VAC) C Individual relay S Mounted in an M+ system If relays are to be mounted in an M+ system, then either an M050 half 19 rack or M100 full 19 rack case must be ordered. The M050 and M100 racks are provided at no additional cost based on the number of relays ordered. Accessories B115P1 Depth reducing collar, reduces the mounting depth by 6 mm enervista enabled See page

29 MGC Digital Generator Protection Three phase protection for small generators. eatures and Benefits I1, I2, I0 metering and last trip data Part of a modular system Independent 4" modules 1/4 standard 19" rack cases available digit display and reset button Applications Small generators Component for bigger generator packages Protection and Control Unbalance or current reversal Thermal protection Phase and ground faults GE Multilin 58