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GE Power Management

g. GE Power Management. 269Plus Motor Management Relay. g. GE Power Management. 269Plus Motor Management Relay.

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GE Power Management

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  1. g GE Power Management 269Plus Motor Management Relay

  2. g GE Power Management 269Plus Motor Management Relay Offering optimum motor protection in situations where other relays cannot, the 269 Plus Motor Management Relay possesses the unique feature of its ability to “learn” individual motor parameters, giving it the flexibility to adapt to each application by “learning” values of motor inrush current, negative sequence current K factor, cool down rates, start thermal capacity and acceleration time.

  3. g GE Power Management 269Plus Motor Management Relay Presentation Overview • Applications • User Interface • Metering and • Monitoring • Inputs and • Outputs • Protection and • Control • Typical Wiring • Communications • Ordering

  4. g GE Power Management 269Plus Motor Management Relay Applications The 269 Plus is a microprocessor based product designed to provide complete and accurate protection for industrial motors and their associated mechanical systems. • Three phase AC motors • Mechanical system protection MAIN

  5. g 52 50 50G (4) COMMUNICATION with METERING OPTION ISOLATED 4160V BUS ANALOG OUTPUTS 400A VOLTS METERING OPTION MPM AMPS FUSED CONTACTOR 48 46 66 86 50 51 49 37 PHASE CTs TRIP RELAY 51G 50G 47 55 27 GROUND CT 74 37 AMBIENT AIR ALARM RELAY STATOR RTDs 49 RTD BEARING RTDs 269PLUS RELAY 38 LOAD AUXILIARY RELAY #1 MOTOR 14 SPEED DEVICE 14 AUXILIARY RELAY #2 SELF TEST ALARM CONTACTS DIFFERENTIAL 52b 87 87 RELAY CONTACTS RS485 SPARE INPUT REMOTE COMMUNICATION STARTER AUXILIARY B CONTACT GE Power Management Applications FUNCTIONAL BLOCK DIAGRAM Legend MAIN

  6. g GE Power Management Applications DEVICE PROTECTION 14 Speed Device 37 Undercurrent/Minimum Load 38 Motor/Load Bearing Overtemperature 46 Unbalance - Negative Sequence 48 Multiple Starts/Locked Rotor 49 Stator Winding Overtemperature 49/51 Overload Curves/FlexCurves 50 Short Circuit/Mechanical Jam/Rapid Trip 50G/51G Zero Sequence Ground Fault 50N/51N Residual Ground Fault 52b Breaker 74 One Alarm Relay, Two Auxiliary Relays 86 Main Trip Latched Relay Auxiliary Relay No. 1 Auxiliary Relay No. 2 87 Differential Relay Contact Input 66 Starts per hour 47 Volts Phase Reversal (Meter Option) 27 Undervoltage (Meter Option) Frequency (Meter Option) 55 Power Factor (Meter Option)

  7. g GE Power Management 269Plus Motor Management Relay Protection • Stator winding • overtemperature • Bearing • overtemperature • Multiple starts • Overloads • 8 standard overload • curves • User defined overload • FlexCurveTM • Phase reversal • (meter option) • Locked rotor • Ground fault • Rapid trip/mechanical jam • Undercurrent • Unbalance/single phasing • Variable lock out time • Short circuit • “Learns” individual • motor parameters MAIN

  8. g GE Power Management 269Plus Motor Management Relay Start and Running • Motor is protected under both Acceleration and Running • conditions The 269 Plus can trigger an alarm or trip the motor based on: • normal acceleration time • number of starts per hour • multiple starts • time between starts • motor overload conditions MAIN

  9. g GE Power Management Protection Overload • One of eight standard overload curves may be programmed based on motor manufacturer’s locked rotor time capability. • Alternately, the user may program in a custom curve using the built-in FlexCurve™ function. View 8 Standard Overload Curves MAIN

  10. g GE Power Management Protection 8 Standard Overload Curves • The motor’s service factor value is entered as the overload pickup level Full Load Current Setpoint Multiples of Full Load Current Setpoint

  11. g 1) Programmed 269 Plus Custom Curve 2) Running Safetime (Rotor Limited) 3) Acceleration Safetime (Rotor Limited) 4) Motor Current @ 100% Voltage 5) Motor Current @ 80% Voltage GE Power Management Protection FlexCurve™ 6500 HP, 13800 Volt INDUCED DRAFT FAN MOTOR When a FlexCurve is programmed, the 269 Plus develops a smooth custom overload curve within a selected range. FlexCurve can be used to protect motors which have different rotor and stator damage, allowing total motor design capacity with complete protection. Multiples of Full Load Current Setpoint

  12. g GE Power Management Protection Thermal Modeling The Thermal Model within the 269Plus has the ability to compute the motor I2t value based on actual motor load current. • thermal model calculates value in terms of thermal capacity used • RTDs (resistance temperature units) measuring stator temperature • act as a thermal capacity check to confirm value calculated by • thermal model. RTDs may be used for monitoring stator, bearing, • ambient, or other temperature monitoring. • thermal capacity used is then updated to reflect the higher of the • two values MAIN

  13. g GE Power Management Protection Motor Match MotorMatch modifies the initially entered relay parameters to match actual measured motor characteristics. The key elements include: • accumulated I2t in the memory • RTD input to the memory • learned cooldown time from run to stop • learned cooldown time from run- • overload to run-normal • learned acceleration time • learned negative sequence contribution (K-factor) MAIN

  14. g GE Power Management Protection RTD Hot Motor Compensation When hot motor compensation is enabled: • RTD feedback from actual stator temperature checks • the thermal capacity model • User has the capability to match the motor thermal • characteristics with a dual slope RTD bias curve • The two part curve allows for easy fitting of hot and cold • motor damage curves to the RTD bias feature MAIN

  15. g GE Power Management 269Plus Motor Management Relay User Interfaces • PC Software for setting, monitoring • 48 character alpha-numeric backlit • LCD display • Five Target LED indicators • MPM (meter) com port • RS485 com port (ModBus® RTU) MAIN

  16. g GE Power Management User Interfaces • HELP KEY • Help key can be pressed at • any time to provide additional • information • PROTECTIVE COVER • Rugged, corrosion and flame • retardant case • Meets IP53/NEMA 12 MAIN

  17. g GE Power Management User Interfaces • DISPLAY • 48 Character alpha-numeric backlit • LCD display for viewing actual • values, causes of alarms and trips, • and programming setpoints. I 1=120 I 2=120 I 3=121 (AMPS) • STATUS INDCATORS • 5 LEDs indicate when an output is • activated. When an LED is lit the • cause of the output relay operation • will be shown on the display. • KEYPAD • Used to select the display of actual • values, causes of alarms, causes of • trips, fault diagnosis and to • program setpoints. MAIN

  18. g GE Power Management User Interfaces • 4 OUTPUT RELAYS • Programmable alarm and trip conditions activated by: • programmable setpoints • switch input • remote communication control • CONTROL POWER • 120/125 AC/DC • 240/250 AC/DC • 24 AC/DC, 48 AC/DC • INPUTS/OUTPUTS • Spare input • MPM (meter) com port • Differential relay input • Speed switch input • Access input • Emergency restart • External output • Analog output • RS485 com port • RTD 7-10 • Can be assigned to monitor motor and load bearings, and ambient temperature • RTD 1-3 • Typically used for stator • winding protection • RTD 4-6 • Typically used for stator • winding protection LINE MAIN Phase and ground CT inputs Contrast dial

  19. g GE Power Management 269Plus Motor Management Relay Communications • Protocol • Modbus® RTU protocol • Terminals for RS485 located on rear port of the relay • Successfull interface with many PLCs • such as Modicon, Square D, Allen Bradley • and GE Fanuc MAIN

  20. g GE Power Management 269Plus Motor Management Relay Metering Actual Values • average and individual phase currents • RTD temperatures (hottest, individual, maximum) • unbalance ratio (%In/Ip) • ground leakage current • thermal capacity remaining / estimated time to trip • at present overload level • motor load as a percent of full load • phase to phase or phase to neutral voltage • (meter option) • W, var, MWhr, PF, Hz (meter option) MAIN

  21. g GE Power Management 269Plus Motor Management Relay Monitoring Prior Alarms • immediate overload/stall warning • ground fault • mechanical jam • unbalance • undercurrent • RTD overtemperature, broken RTD sensor, • low temperature RTD • self-test-service • under/overvoltage (meter option) • low power factor (meter option) MAIN

  22. g GE Power Management 269Plus Motor Management Relay Monitoring Fault Diagnosis • 269 Plus displays the cause of the trip and • will show the remaining lock-out time if applicable • cause of the last trip and pre-trip values can be • recalled for rapid fault diagnosis. MAIN

  23. g GE Power Management 269Plus Motor Management Relay Monitoring Statistical Data (StatTracTM) • StatTracTM provides statistical data of motor use for • operations monitoring, maintenance, and fault diagnosis. • Using the Keypad, the user can display: • running hours and number of starts since last commissioning • number of all trips • number of specific types of trips • total Watt-hours (with meter option) MAIN

  24. g GE Power Management 269Plus Motor Management Relay Inputs • Speed Switch Input • enables the user to use an external speed device • Differential Relay Input • provided terminals to accept contact closure from an external • differential relay • all protective functions grouped through one main relay • Spare Input • spare input terminals configurable to represent either a standard contact input • (ie-pressure switch), or a specific contact input (circuit breaker/contactor status) • 52b contact from a circuit breaker = positive identification of the position of the • breaker(open or closed) MAIN

  25. g GE Power Management 269Plus Motor Management Relay Outputs • 4 Output Relay Contacts • Trip Relay as main latched output relay • Alarm output relay (latched or unlatched) • Auxiliary 1 output relay (latched or unlatched) • Auxiliary 2 output relay • Analog output • Used to indicate motor thermal capacity used, • motor current, hottest stator RTD, bearing RTD, or CT • secondary current MAIN

  26. START STOP FUSE 269Plus TYPICAL WIRING GROUND BUS ALTERNATE CONNECTION FOR COMMON SHIELD 52b METER COM PORT EXTERNAL CONTACTS EXTERNAL CONTACTS JUMPER OR KEYSWITCH KEYSWITCH EXTERNAL RESET AMMETER OR PROGRAMMABLE CONTROLLER RS485 COM PORT GROUNDED AT MASTER ONLY PHASE A CT MOTOR PHASE B CT PHASE C CT 50:0.025 GROUND CT ZERO SEQUENCE GROUND CONNECTION PHASE A CT MOTOR PHASE B CT MAIN PHASE C CT RESIDUAL GROUND CONNECTION (ALTERNATE)

  27. * * * * * * g O R D E 269PLUS R C O D E 269PLUSMotor Management Relay SV Standard version D/O Drawout version Phase CT 1 Ground CT (required for D/O only) 1 :5 2000:1 2 :5 :5 3 :1 2000:1 4 :1 :5 Relay fail safe code2 (required for D/O only) Trip Alarm Aux1 Aux2 1 FS NFS NFS FS 2 NFS FS NFS FS 3 FS FS NFS FS 4 NFS NFS FS FS 5 FS NFS FS FS 6 NFS FS FS FS 7 FS FS FS FS 8 NFS NFS NFS FS Relay contact arrangement3 (required for D/O only) Alarm Aux1 Aux2 1 N.O. N.O. N.O. 2 N.O. N.O. N.C. 3 N.O. N.C. N.O. 4 N.O. N.C. N.C. 5 N.C. N.O. N.O. 6 N.C. N.O. N.C. 7 N.C. N.C. N.O. 8 N.C. N.C. N.C. 100P 100 Ohm platinum RTD 10C 10 Ohm copper RTD 100N 100 Ohm nickel RTD 120N 120 Ohm nickel RTD 120 120 AC/125 DC control voltage 240 240 AC/250 DC control voltage 24DC 24 DC control voltage 48DC 48 DC control voltage

  28. g GE Power Management Contact : GE Power Management 215 Anderson Ave., Markham, Ont. Canada L6E 1B3 Tel: 905-294-6222 Fax: 905-201-2098 Email: info.pm@indsys.ge.com 269Plus Motor Management Relay

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