Starting protection, synchronization control synchronous motors.

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Starting protection, synchronization control synchronous motors.

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Synchronous Motor Protection Control
Starting protection, synchronization control synchronous motors.
Protection Control
Protects motor during start event asynchronous operation Prevents overheating cage winding Automatic phase rotation correction Regulator tuning mode True metering with filtering Statistics improved maintenance Built-in self-diagnostics modes pull-out protection Optional power factor regulator with five adjustable points
field current loss, exciter current loss, field voltage check regulation, reluctance torque synchronizing
Monitoring
Motor power factor Motor time, number type trips
User Interfaces
RS485 port
Applications
Starting, synchronizing protection collector-ring brushless-type synchronous motors enerVista.com compatible (see page 275)
Multilin
Synchronous Motor Protection Control
Protection
controls starting, synchronizing protection collector-ring brushless-type synchronous motors. Stall Protection important protection function preventing cage winding overheating during both starting running synchronization conditions. brushless motors, stall/acceleration protection derived from stator current inputs. Stall protection activates when operating motor stopped with power factor protection enabled. Protection characteristics shown following graph.
Typical cage heating protection brushless motors.
2000
collector ring motors, speed determined from frequency induced field current. less than synchronous speed following typical cage heating protection characteristics used:
Typical cage heating protection characteristics collector ring motors.
tracks synchronized motor cooling minute intervals prevent motor abuse caused frequent starting. Field Current Loss Protection This feature trips motor when field current drops below programmed setpoint after motor synchronized. utilize this feature separate accessory package must ordered. Reduced Voltage Starting temporarily extend stall time during reduced voltage start. This allows motor acceleration synchronous speed longer time period than with full voltage start. Incomplete Sequence Protection
Time Allowable Zero Speed Stall Time
701761A8.cdr
Synchronous Speed
1500
1000
Stall Time Locked Rotor 6XFLC Stall Time Locked Rotor 6XFLC Stall Time Locked Rotor 6XFLC
motor does synchronize within programmed time setpoint, relay will trip motor.
Functional Block Diagram
Trip Time (seconds)
MOTOR SUPPLY
CLUTCH COUPLING
Trip Current (Multiples Programmed Full Load Current)
701762A6.cdr
LOAD
Stator Protection (469)
ANSI DEVICE NUMBERS
Field overtemperature Undervoltage Undercurrent underpower Incomplete sequence Instantaneous overcurrent Power factor Field application Lock Tripping Reluctance torque sync. resync. Autoloading relay
Calibrator
701767A9.cdr
www.GEindustrial.com/Multilin
Synchronous Motor Protection Control
These curves show trip characteristic amortisseur winding protection adjusted reduced voltage starts.
Time Zero Speed Stall Time
Voltage
time delay prevent inadvertent tripping transients. modes pull-out protection available, re-sync mode ride-thru mode. These modes will initiated lagging power factor drops below programmed point, line current surge occurs which above four times motor full load current. Re-sync mode operation will cause Field Application Relay (FAR) remove motor field excitation. motor will continue with field removed programmed power factor delay time. re-synchronization does occur within this time trip relay will operate motor will stop. ride-thru mode motor field excitation removed immediately. Instead, allows motor power factor delay time. power factor line current surge persists trip relay will operate motor will stop. Starting Synchronizing collector ring motors, detects proper rotor speed angle determines correct time close field application relay based percent synchronous slip setpoint. This applies excitation motor field opens field discharge resistor loop. brushless motors, voltage applied exciter after preset programmable time elapses. Power factor pullout protection then enabled. contact (FCX) also provided signal automatic motor loading. Reluctance Torque Synchronizing When lightly loaded synchronous motor pulls into synchronization before rotor poles externally magnetized, this known reluctance torque synchronizing. SPM's field application control responds properly applying excitation motor synchronizes reluctance torque.
Power Factor Regulation Power factor regulation control signal output used control variable exciter output. This replaces standard power factor analog signal output. This option recommended brushless applications. regulator five set-points that adjusted while motor running facilitate regulator tune-up. They are: setpoint range from
lagging, through leading
Line
100%
output upper limit
control voltage output signal
gain adjusted optimum
regulator performance
701760A8.cdr
Synchronous Speed
stability time adjustment
help compensate instability
Exciter Voltage Protection Exciter voltage check protection provided connecting exciter output terminals through voltage divider network (VDN). This used equipment with exciters energized prior motor startup. Field Winding Overtemperature This function emulates resistance temperature device (RTD) field windings. device's resistance temperature dependent. temperature increases, resistance increases. utilize this feature separate PG2SPM PG4SPM accessory must ordered.
floor lower limit
control voltage output signal
Power factor regulation functional block diagram.
Main Contactor MOTOR Field Field Contactor Proportional Exciter Supply Motor Field
Voltage Input
Current Input
Detection
Feedback
Regulator
Control Signal
Setpoint Output Gain Stability Floor
701754A5.cdr
Control Features
offers users advanced control features such Power Factor (Pull-Out) Protection provides pull-out protection synchronous motors operating either generating motoring modes. provides power factor settings also displays measured leading/lagging power factor. power factor regulation option enables field forcing advance pull-out condition. Motor pull-out protection provided circuit which monitors power factor built
Monitoring Metering
Users take advantage monitoring metering functions including: Displays Messages unit contains display programming, displaying trip information, readout running parameters such line amperes, field amperes, power factor, line current, field volts, field current, field ohms. also stores motor time number types motor trips. Trip, Field
www.GEindustrial.com/Multilin
Synchronous Motor Protection Control
Application (FAR) relay states also monitored. Self-Tests Diagnostics built-in test diagnostics indicate that relay operating properly prior start-up. SPM's separate test mode allows user verify following: Trip relay contacts System test Squirrel cage protection test Synchronization Power factor test Upon entering test mode de-energizes trip contact upon exiting test mode trip contact re-energized. System test performs complete check internal memory, input-output devices other system functions.
Control Power: power supply with range from VAC. control voltage excursions occur outside this range, external stabilizing transformer should used conjunction with optional separate power factor reference voltage inputs. Power Factor Reference Voltage: reference voltage derives from control power, also optional inputs separately powered reference voltage, V1EXT V2EXT. Effective range VAC. Power Factor Analog Signal Output: zero volts signal corresponds motor power factor. Zero volts represents zero lagging power factor, five volts represents unity power factor, volts represents zero leading power factor. volt change corresponds degree phase shift. power factor regulation provided, this analog signal output replaced with regulation output. Power Factor Control Signal: This option uses analog output supply control signal variable exciter. Trip Relay: trip terminals connected failsafe normally open contact. This contact closes relay power opens trip condition de-energize motor. Relay: field application relay terminal points normally open contact. This contact closes apply
motor field pull motor into synchronization. Relay: (field contactor auxiliary) relay picks setpoint time delay after relay picks used signal external systems auto load/unload motor. Communications equipped with rear RS485 port that could used remote communications, connection DCS, SCADA, PLC. port supports ModBus® protocol. RS485 port variable from 300-115,000 bps. communication port active simultaneously without adversely affecting response time. Software Windows -based SPMPC software allows user manipulate display data simple point click interface allows setpoint files each motor stored, printed verification, downloaded error free setpoint entry. addition, complete manual included help file quick local access.
Inputs Outputs
offers user variety input output solutions: Field Voltage Input: induced field voltages monitored through their connection external discharge resistor VDN, providing instantaneous value motor slip. Exciter Voltage Input: terminals connected exciter monitor exciter voltage. Exciter Current Input: field current terminals connected field DCCT calibration module (ordered separately) detect field loss. Motor Line Current: input terminals, plus brushless, connected system current transformers. Motor 'On' Input: Accepts normally closed electrical interlock that opens when motor energized closes when motor de-energized. Reduced Voltage Starting Input: Accepts normally open electrical interlock that closes when motor reaches full voltage during reduced inrush start.
RS485 connection reliable communication system that immune system transients.
TERMINATING TERMINATING RESISTOR CAPACITOR
PORT RS232
ENTER
ENTER
ENTER
PERSONAL COMPUTER
987654321
SCROLL
SCROLL
SCROLL
SYNCRONOUS MOTOR PROTECTION CONTROL
SYNCRONOUS MOTOR PROTECTION CONTROL
SYNCRONOUS MOTOR PROTECTION CONTROL
SIGNALS (PC) (PC)
SIGNAL
987654321
UNIT
UNIT
UNIT
GEPM RS485 CONVERTER EQUIVALENT
RS485 POWER RS232
701777A1.dwg TERMINATING TERMINATING RESISTOR CAPACITOR
www.GEindustrial.com/Multilin
Synchronous Motor Protection Control
Standard Features
Front View
Used enter exit different modes SPM. These Standby, Test, Statistics, Programming modes.
Sync. Protection/Control
QUICK RELEASE TABS Used remove display easy access drawout.
LOCKING PROVISION wire lead seal used prevent unauthorized removal relay.
DISPLAY Backlit character display setpoints, actual values status. Programmable auto scan sequence unattended operation.
ENTER Used make selection acts enter key.
SCROLL KEYS Used scroll through various menus change setpoint parameter values.
DISPLAY FUNCTION MENU Menu accessible setpoints actual values easy reference. CONTRAST DIAL Lightens darkens display.
PULLDOWN DOOR Hides menu when use.
Rear View
CASE Compact rugged metal/bakelite case. Fits standard cutout.
TERMINAL BLOCK RELAYS TRIP: Normally open, failsafe trip relay. FAR: Field application relay. FCX: Autoloading motor. INPUTS EXCITER: Exciter voltage inputs. Connected DCCT FIELD: field voltage input. REDUCED VOLTAGE: Contact input reduced voltage starting. Motor "ON" input. Exciter current input. Power Factor reference voltage (for separately powered option). OUTPUTS POWER FACTOR: 0-10 analog signal.
RS485
RS485-
V1EXT
FAR1
TRP1
IENC
FAR2
RS485+
V2EXT
MOTOR LINE CURRENT Phase current inputs. Accept wire.
TRP2
CONTROL POWER VAC. 701750AF.cdr
www.GEindustrial.com/Multilin
Synchronous Motor Protection Control
Typical Wiring
TYPICAL BRUSHLESS MOTOR CONNECTION
SYNC MOTOR
FIELD
NOMENCLATURE
DCCT FIELD CURRENT CALIBRATION MODULE DIRECT CURRENT MAIN CONTACTOR OVERLOAD RELAY MOTOR TERMINALS OPTIONAL ACCESSORIES
DCCT VOLTAGE DIVIDER NETWORK (VDN)
EXCITER/FIELD VOLTAGE
VFVE+
(E+) (E-) (V+) (V-)
NOTES:
Relays shown with control power applied relay
PHASE CURRENT INPUT
*Trip Relay closed during normal operation
Multilin
FIELD CONTACTOR
Sync. Protection/Control
EXCITER VEXCITER
TYPICAL COLLECTOR RING MOTOR CONNECTION
SUPPLY
SYNC MOTOR
PHASE
FIELD
FIELD DISCHARGE RESISTOR
VOLTAGE DIVIDER NETWORK (VDN)
FIELD CONTACTOR
EXCITER/FIELD VOLTAGE
CONTROL POWER REF. VOLT.
(R1) (F2) (V+) (V-)
PHASE CURRENT INPUT
(E+) (E-)
CHASSIS GROUND
FILTER GROUND
Multilin
Sync. Protection/Control
TRIP1 TRIP2
REDUCED VOLTAGE MONITOR
DIGITAL INPUTS
*TRIP
OUTPUT RELAYS
EXCITER
STOP START
FIELD CONTACTOR AUX. (FCX)
MAIN AUXILIARY
EXCITER CONTACTOR
REDUCED VOLTAGE STARTERS, REMOVE JUMPER CONNECT CONTACT FROM FINAL STEP CONTACTOR HERE.
EXCITER POWER SUPPLY COMPUTER
FIELD APPLICATION (FAR)
RS485
COMM
POWER FACTOR OUTPUT
FIELD OPTIONAL CURRENT REF. VOLT.
FIELD CONTACTOR
V1EXT V2EXT
ANALOG OUTPUT CONTROL OUTPUT REGULATOR OPTION)
USED SEPARATELY SUPPLIED POWER FACTOR REFERENCE VOLTAGE (OPTIONAL CONNECTION)
FIELD CURRENT CALIBRATION MODULE (CM)
BRUSHLESS COLLECTOR RING 701756AP.cdr COLLECTOR RING 701751.DWG BRUSHLESS 701753.DWG
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Synchronous Motor Protection Control
Technical Specifications
METERING PHASE CURRENT INPUTS primary: 2000 secondary: Conversion range: 0.05 Frequency: 50/60 Accuracy: ±0.5% true true MONITORING POWER FACTOR Range: Time delay: Accuracy: OUTPUTS ANALOG OUTPUT Type: Output: Accuracy: Isolation: RELAY CONTACTS Type: Rated load: 0.01 -0.01 Break: operating voltage: PACKAGING Shipping box: Active (min load) ±10% (0.1 FAR, Form Form continuous NEMA A300 continuous NEMA R300 Insulation resistance: POWER SUPPLY CONTROL POWER Input: Power: nominal Holdup: typical ENVIRONMENTAL Humidity: non-condensing Operating temperature: -20° +70° Storage temperature: -40° +85° Transients: Ship weight: 12.50" 10.50" 9.75" 14.25 lbs/6.45
APPROVALS listed Canada
TYPE TESTS Dielectric strength:
INPUTS FIELD CURRENT INPUTS primary: 1000 Conversion range: 0.05 Accuracy: EXCITER VOLTAGE INPUTS Conversion: (prior VDN) Accuracy: SWITCH INPUTS Type: contact Internal interrogation voltage: (control voltage)
Impulse test: EMI: Static: Vibration:
255-5 ANSI/IEEE C37.90 minute from relays, CTs, power supply safety ground IEC255-5 VDC, from relays, CTs, VTs, power supply safety ground ANSI C37.90.1 oscillatory (2.5 kV/1 MHz) ANSI C37.90.1 fast rise kV/10 Ontario Hydro A-28M-82 IEC255-4 impulse/high frequency disturbance, Class Level 255-5 Joule C37.90.2 electromagnetic interference MHz, 801-2 static discharge Sinusoidal vibration
*Specifications subject change without notice.
Dimensions
FRONT SIDE PANEL CUT-OUT
6.75" (171)
1.42" (36)
6.19" (157)
0.75" (19)
0.22" (5.6) PLACES) 0.25" Dia. (6.3)
5.69" (144)
0.22" (5.6)
Sync. Protection/Control
8.38" (212) 9.29" (236)
2.19" (56)
CUTOUT
4.41" (112)
4.38" (111) 4.19" (106)
8.81" (224)
PANEL
6.94" (125)
Inches (mm)
701752A9.dwg
www.GEindustrial.com/Multilin
Synchronous Motor Protection Control
Hardware
Space Saving Case supplied compact drawout case. drawout case allows unit removed without disconnecting rear terminal wiring.
Calibration Module (CM) This optional accessory provides proper excitation DCCT provides calibration adjustment obtain correct field readings. required field current and/or field overtemperature features.
calibration module included with optional PG2SPM PG4SPM overtemperature/ current loss accessory package.
Direct Current Current Transformer (DCCT) optional DCCT detects field current. DCCT required field current and/or field overtemperature features. 200A 400A versions available. DCCT works conjunction with both available separate accessory package. order code more details.
DCCT included with optional PG2SPM PG4SPM overtemperature/current loss accessory package.
Voltage Divider Network (VDN) provided connect field and/or exciter voltages. included standard accessory.
Guideform Specifications
electronic version guideform specifications, please visit: www.GEindustrial.com/ Multilin/specs, your request 905-201-2098 email
Ordering
SPM: standard starting protection relay with board power factor regulation option used motors with proportional exciter. (not recommended brushless applications)
Accessories PG2SPM: External hardware package overtemperature current loss protection (includes 1-DCCT200 1-CM) PG4SPM: External hardware package overtemperature current loss protection (includes 1-DCCT400 1-CM) MPSPM: Mounting panel retrofit existing µSPM cutouts
enerVista enabled
page 275.
www.enerVista.com
www.GEindustrial.com/Multilin

Starting protection, synchronization control synchronous motors.

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