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7–102

239 MOTOR PROTECTION RELAY – INSTRUCTION MANUAL

CHAPTER 7: TESTING

EXAMPLE: CALCULATING THE PERCENT OF UNBALANCE

Find the percent unbalance given the following information:

The average of the three phase currents is:

Now, since

FLC

, we have percent unbalance given by:

Therefore, the percent unbalance in this case is 18%.

PRIMARY

SECONDARY (5A)

= 73 A

3.65 A

= 100 A

5 A

= 100 A

5 A

------------------------

73 100 100

--------------------------------------

273

---------

91 A

%UB

–

FLC

---------------------









100%

73 91

–

100

---------------------









100%

18%

Содержание Multilin 239

Страница 1: ...gy 215 Anderson Avenue Markham Ontario Canada L6E 1B3 Tel 905 294 6222 Fax 905 201 2098 Internet http www GEmultilin com 1601 0067 DC TRIP ALARM AUXILIARY SERVICE PICKUP COMMUNICATE RESET STORE ACTUAL VALUE MESSAGE SETPOINT 239 Motor Protection Relay CAUSE OF LAST TRIP MECHANICAL JAM IISO9001 2000 G E M ULTILI N R E GISTERE D GE Digital Energy s Quality Management System is registered to ISO9001 2...

Страница 2: ...the property of GE Digital Energy Inc This documentation is furnished on license and may not be reproduced in whole or in part without the permission of GE Digital Energy The content of this manual is for informational use only and is subject to change without notice Part numbers contained in this manual are subject to change without notice and should therefore be verified by GE Digital Energy bef...

Страница 3: ... 2 STATUS INDICATORS 3 3 KEYS 3 4 SETPOINT ACCESS 3 7 DEFAULT MESSAGES 3 8 4 PROGRAMMING PROGRAMMING 4 11 SETPOINT ENTRY METHODS 4 11 S1 239 SETUP 4 13 PREFERENCES 4 14 ANALOG OUTPUT 4 15 RS485 SERIAL PORT 4 16 DEFAULTS 4 16 PROGRAMMABLE MESSAGE 4 17 PRODUCT OPTIONS 4 18 S2 SYSTEM SETUP 4 20 CT INPUTS 4 21 MOTOR DATA 4 21 S3 OUTPUT RELAYS 4 24 TRIP RELAY 4 25 ALARM RELAY 4 25 AUXILIARY RELAY 4 25 ...

Страница 4: ...6 MOTOR CAPACITY 5 66 TEMPERATURE 5 67 A3 PRODUCT INFO 5 68 SOFTWARE VERSIONS 5 68 IDENTIFICATION 5 69 6 USER INTERFACE ENERVISTA 239 SETUP INTERFACE 6 71 HARDWARE AND SOFTWARE REQUIREMENTS 6 71 INSTALLING ENERVISTA 239 SETUP 6 71 CONNECTING ENERVISTA 239 SETUP TO THE RELAY 6 74 CONFIGURING SERIAL COMMUNICATIONS 6 74 CONFIGURING ETHERNET COMMUNICATIONS 6 75 CONNECTING TO THE RELAY 6 77 WORKING WIT...

Страница 5: ...DARY INJECTION TESTING 7 98 PHASE CURRENT ACCURACY 7 99 PHASE CURRENT OVERLOAD 7 100 PHASE UNBALANCE ALARM 7 101 GROUND CURRENT ACCURACY 7 103 50 0 025 GROUND ACCURACY TEST 7 103 GROUND ALARM AND TRIP 7 104 SWITCH INPUT 7 105 ANALOG OUTPUT 7 106 THERMISTOR ALARM 7 107 RTD MEASUREMENT 7 108 POWER FAILURE NON VOLATILE MEMORY 7 109 ROUTINE MAINTENANCE VERIFICATION 7 110 APPENDIX 239 WARRANTY A 1 INDE...

Страница 6: ...TOC 4 369 MOTOR MANAGEMENT RELAY INSTRUCTION MANUAL TABLE OF CONTENTS ...

Страница 7: ...ment give an alarm before damage results from a process malfunction diagnose problems after a fault and allow verification of correct relay operation during routine maintenance Using the ModBus serial communications interface motor starters throughout a plant can be connected to a central control monitoring system for continuous monitoring and fast fault diagnosis of a complete process One relay i...

Страница 8: ...ed starts Mod 505 Single phase unbalance Ground fault Overtemperature Thermistor 3 RTDs Undercurrent Overload warning Breaker failure FEATURES Status current temperature display Fault diagnosis Trip record Memory lockout Thermal capacity load RTD analog output Trip alarm auxiliary service relay outputs Motor Running Hours Motor maximum current on last start Simulation mode for field testing Clear ...

Страница 9: ...ERVICE RELAY RS485 ALARM RELAY TRIP RELAY LOCKED ROTOR SHORT CIRCUIT TIMED OVERLOAD INSTANTANEOUS GROUND FAULT STATOR OVER TEMPERATURE BEARING OVER TEMPERATURE UNBALANCE UNDERCURRENT SERVICE ALARM FAULT ALARM PROCESS CONTROL FAULT PROCESS ALARM 52 3 PHASE 4160V BUS 400A FUSED CONTACTOR 3 PHASE CTs TRIP GROUND CT THERMISTOR STATOR RTD BEARING RTDs RS485 REMOTE COMMUNICATION 239 RELAY ...

Страница 10: ...an alarm Auxiliary Lit when the auxiliary relay is operated Service Lit when the 239 detects an internal fault condition Pickup Lit when motor full load or ground is exceeded Communicate Off if there is no communication at all flashes if RS485 activity but invalid messages and on steady if communication is successful pickup KEYPAD Rubber keypad makes installed unit dust tight and splash proof Meet...

Страница 11: ...ity meter CUSTOMER ACCESSIBLE FUSE Door slides open for easy access to fuse AC DC CONTROL POWER Universal control power 90 300 VDC 70 265 VAC GROUND CT INPUT 5A or 50 0 025 CT input for residually connected phase CTs or separate core balance CT PHASE CT INPUTS 3 isolated phase CT inputs Accept 1 amp or 5 amp secondary TEMPERATURE SENSING NTC or PTC thermistor input OPTIONAL 3 RTD INPUTS Mix RTD ty...

Страница 12: ... gears pumps fans saw mill cutters and compressors against mechanical jam using the mechanical jam trip feature 5 Safety to personnel from shock hazard using the ground fault feature to detect winding shorts from moisture 6 Protection of motors and equipment from operator abuse using the thermal memory lockout Cost savings are provided using versatile features such as 1 Diagnostic information afte...

Страница 13: ... approval ACCESSORIES 239PC Windows software supplied free Phase and ground CTs RS232 to RS485 converter required to connect a computer to the 239 relay s to run 239PC RS485 Terminating Network 2 25 collar for limited depth mounting 1009 0068 Large size 8 5 x 11 instruction manual free upon request CONTROL POWER 90 to 300 V DC 70 to 265 V AC standard 20 to 60 V DC 20 to 48 V AC MOD 501 239 RTD AN ...

Страница 14: ...ckup Inhibit 1 00 to 5 00 FLC Pickup Level 1 to 1500 A Accuracy Pickup 1 of Displayed Value Time 2 of trip time or 1 sec whichever is greater SHORT CIRCUIT GROUND TRIP Ground Trip Level 0 05 to 15A 50 0 025 CT 3 to 100 5 A CT S C Trip Level 1 to 11 CT PRI OFF Intentional Delay INST or 10 to 60000 ms programmable Inst 20 to 45 ms Total Delay Inst Intentional trip time accuracy guaranteed if current...

Страница 15: ...OR Type PTC or NTC programmable Hot Resistance 100 to 30 000 Ω Cold Resistance 100 to 30 000 Ω Delay 2 sec Accuracy 5 or 100 Ω whichever is greatest UNDERCURRENT Range 5 to 100 FLC OFF Delay 0 to 250 sec RTDS OPTIONAL Inputs 3 RTDs stator bearing prog Type 100 Pt DIN 43760 100 Ni 120 Ni 10 Cu programmable Range 40 to 200 C 40 to 400 F Trip Alm Range 0 to 200 C 0 to 400 F Dead Band 2 C 4 F Accuracy...

Страница 16: ...1 mA 21 mA 21 mA VOLTAGE MAKE CARRY CONTINUOU S MAKE CARRY 0 2 s BREAK RESISTIVE 30 VDC 10 30 10 125 VDC 10 30 0 5 250 VDC 10 30 0 3 INDUCTIVE L R 7 ms 30 VDC 10 30 5 125 VDC 10 30 0 25 250 VDC 10 30 0 15 RESISTIVE 120 VAC 10 30 10 250 VAC 10 30 10 INDUCTIVE PF 0 4 120 VAC 10 30 10 250 VAC 10 30 10 CT INPUT A BURDEN VA Ω PHASE CT 1A 1 0 009 0 01 5 0 2 0 01 20 3 5 0 01 PHASE CT 5A 5 0 04 0 002 25 0...

Страница 17: ... nominal 30 VA max Holdup non failsafe trip 200 ms failsafe trip 100 ms both times at 120VAC 125VDC Note It is recommended that all 239 relays be powered up at least once per year to avoid deterioration of electrolytic capacitors in the power supply FUSE TYPE RATING 5 20mm 2 5 A 250V Slow blow High breaking capacity INSTALLATION HAZARD may result if the product is not used for its intended purpose...

Страница 18: ...m Damped Oscillatory magnetic IEC61000 4 10 100A m Voltage Dip interruption IEC61000 4 11 0 40 70 80 dips 250 300cycle interrupts IEC60255 11 DC interrupts and ripple 15 Damped Oscillatory IEC61000 4 18 IEEEC37 90 1 2 5KV 1Mhz 100Khz Ingress Protection IEC60529 IP40 front IP10 back Applicable Council Directive According to Low voltage directive EN60255 27 normative CE compliance EMC Directive EN61...

Страница 19: ...ric Strength 2200 VAC for 1 second PACKAGING Shipping Box 8 6 6 L H D 215 mm 152 mm 152 mm L H D Ship Weight 5 lbs 2 3 kg CERTIFICATION COMPLIANCE ISO Manufactured under an ISO9001 recognized program UL E83849 UL listed for the USA and Canada Note Specifications subject to change without notice ...

Страница 20: ...1 14 239 MOTOR PROTECTION RELAY INSTRUCTION MANUAL CHAPTER 1 OVERVIEW ...

Страница 21: ...tor Protection Relay CAUSE OF LAST TRIP MECHANICAL JAM Installation 2 1 Installation 2 1 1 Mounting Physical dimensions for the 239 and the required cutout dimensions are shown below Once the cutout and mounting holes are made in the panel use the eight 6 self tapping screws supplied to secure the relay Mount the relay on a panel or switchgear door to allow operator access to the front panel keys ...

Страница 22: ...1 Physical Dimensions 2 1 2 Product Identification Product attributes will vary according to the configuration and options installed based on the customer order Before applying power to the relay examine the label on the back of the 239 and check that the correct options are installed ...

Страница 23: ...on manual corresponds to a particular firmware revision in the 239 The instruction manual revision is located on the first page of the manual as part of the manual P N 1601 00XX Revision The 239 firmware revision is loaded in the relay and can be found by scrolling to the display message A3 PRODUCT INFO FIRMWARE VERSIONS MAIN PROGRAM VER When using the manual to determine relay features and settin...

Страница 24: ...x Table 2 1 Firmware manual Revisions Table MANUAL PART NO FIRMWARE VERSION MANUAL PART NO FIRMWARE VERSION Table 2 2 External Connections CT ROW SIGNAL LOWER ROW SIGNAL UPPER ROW 1 Phase A CT 5A 13 Safety ground 36 Control live 2 Phase A CT 1A 14 Filter ground 37 Control neutral 3 Phase A CT COM 15 RS485 A 38 Sw com 4 Phase B CT 5A 16 RS485 B 39 Sw com 5 Phase B CT 1A 17 RS485 ground 40 Sw com 6 ...

Страница 25: ... Maximum screw torque for terminals 13 to 58 is 0 5 Nm 4 4 in lb Maximum screw torque for terminals 1 to 12 is 2 0 Nm 17 in lb Possible shock hazard from backfeed due to potential multiple energy sources connected to the unit 31 Auxiliary NC 54 RTD2 ret 32 Service NO 55 RTD3 hot 33 Service COM 56 RTD3 comp 34 Service NC 57 RTD3 ret 35 V1 polarizing Mod 509 only 58 Vcom polarizing Mod 509 only Tabl...

Страница 26: ...OM COM COM COM NC NC NC NC 26 27 28 29 30 31 32 33 34 43 38 44 39 45 40 46 41 47 42 SETPOINT ACCESS ACCESS KEY SWITCH EMERGENCY RESTART EMERGENCY RESTART EXTERNAL RESET EXTERNAL RESET OPTION 1 OPTION 1 OPTION 2 OPTION 2 S1 S2 S3 S4 S5 SWITCH INPUTS OUTPUT RELAYS RELAY 1 TRIP RELAY 2 ALARM RELAY 3 AUXILIARY RELAY 4 SERVICE CURRENT INPUTS 239 MOTOR PROTECTION RELAY 13 14 36 37 SAFETY GROUND FILTER G...

Страница 27: ...e required current to the total secondary load which includes the 239 relay burden mentioned in Section 1 2 Specifications at rated secondary current and the connection wiring burden The CT must not saturate under maximum current conditions which can be up to 8 times motor full load during starting or greater than 12 times during a short circuit Only CTs rated for protective relaying should be use...

Страница 28: ...puts on page 4 21 under GROUND CT PRIMARY for suitable settings in this situation Due to the low secondary currents it is recommended that the ground CT secondary leads be twisted together and routed to the 239 away from high current carrying conductors NOTE The 50 0 025 input is only recommended for resistance grounded systems Where the system is solidly grounded or high levels of current are to ...

Страница 29: ...arm and trip current setpoints are below the maximum ground current that can flow due to limiting by the system ground resistance Sensing levels below 20 of the phase CT primary rating are not recommended for reliable operation FIGURE 2 4 Core Balance Ground CT Installation unshielded cable ...

Страница 30: ...LAYS see Section 4 4 S3 Output Relays on page 24 Relay contacts must be considered unsafe to touch when the system is energized If the relay contacts are required for low voltage accessible applications it is the customer s responsibility to ensure proper insulation levels TRIP RELAY 23 24 25 Wiring of the trip relay contacts will depend on whether a breaker or contactor is the motor tripping devi...

Страница 31: ...on for loss of control power it may be preferable to have no alarm on loss of control power and use the service relay for this indication to distinguish it from a process problem In this case wire the external alarm to the NO COM terminals which will be normally open going to a closed state on an alarm condition If UNLATCHED mode is selected using setpoint S3 OUTPUT RELAYS ALARM RELAY ALARM ACTIVA...

Страница 32: ...etpoint will operate even if the access terminals are not shorted When a jumper wire is connected between the access terminals all setpoints and configurations can be programmed using the keypad Once programming is complete the jumper will normally be removed from these terminals or the connected keyswitch left open When this is done all actual and setpoint values can still be accessed for viewing...

Страница 33: ...ons allow for automatic reset OPTION SWITCH 1 41 46 2 42 47 Two option inputs are provided These switch inputs are considered active when closed The state of these input switches can be monitored by the serial port for process signaling They can also be programmed to provide an alarm trip alternate motor control setpoints or process control after a programmable time delay Programming for these swi...

Страница 34: ...d special care should be taken to keep the lead resistance as low as possible If no RTD sensor is installed the corresponding terminals may be left unconnected and the RTD programmed as OFF Shielded three wire cable must be used in industrial environments to prevent noise pickup Wherever possible the RTD leads should be kept close to grounded metal casings and avoid areas of high electromagnetic o...

Страница 35: ... a ground loop Part of the system should be grounded for safety typically at the programmable controller For floating loads such as a meter ground terminal 19 externally Terminal 20 is internally grounded and may be used as a shield ground if required Ground the shield at one end only to prevent ground loop noise SERIAL PORT 15 16 17 A serial port provides communication capabilities between the 23...

Страница 36: ...Using terminating resistors on all the 239s would load down the communication network while omitting them at the ends could cause reflections resulting in garbled data Install the 120 Ω watt terminating resistors and 1 nF capacitor externally Although any standard resistor or capacitor of these values are suitable these components can also be ordered from GE Multilin as a combined terminating netw...

Страница 37: ...e has to be connected to the system or building PE before energizing 2 1 4 Dielectric Strength Testing It may be required to test a complete motor starter for dielectric strength with the 239 installed This is also known as flash or hipot testing The 239 is rated for 1530 V AC isolation for 1 minute or 1836 V AC for 1 second between relay contacts CT inputs control power inputs and safety ground t...

Страница 38: ...2 32 239 MOTOR PROTECTION RELAY INSTRUCTION MANUAL CHAPTER 2 INSTALLATION FIGURE 2 9 Dielectric Strength Testing ...

Страница 39: ...ST TRIP MECHANICAL JAM Operation 3 1 Operation 3 1 1 Front Panel The local operator interface for setpoint entry and monitoring of measured values is from the front panel as shown in the figure below Control keys are used to select the appropriate message for entering setpoints or displaying measured values Alarm and status messages are automatically displayed when required Indicator LEDs provide ...

Страница 40: ...NICATE RESET STORE ACTUAL VALUE MESSAGE SETPOINT DISPLAY 40 character illuminated display for all light conditions Setpoints Actual values Status messages Fault conditions STATUS INDICATORS Trip Lit when the 239 detects a trip Alarm Lit when the 239 detects an alarm Auxiliary Lit when the auxiliary relay is operated Service Lit when the 239 detects an internal fault condition Pickup Lit when motor...

Страница 41: ...this indicator will flash as long as the alarm condition persists When the condition clears the ALARM indicator will turn off If the alarm relay has been programmed as latched the alarm condition can only be cleared by pressing the key by issuing a computer reset command or by closing the external reset input AUXILIARY The AUXILIARY relay is intended for customer specific requirements The AUXILIAR...

Страница 42: ...e COMMUNICATE indicator will be on continuously If no valid message has been received for 10 seconds the indicator will either flash serial data present or go off no serial data 3 1 4 Keys FIGURE 3 4 FRONT PANEL KEYS SETPOINT Setpoints are arranged into groups of related messages called setpoint pages Each time the key is pressed the display advances to the first message of the next page of setpoi...

Страница 43: ...g two messages will flash to indicate that reset is not possible The key along with the key is also used to remove user defined default messages Refer to Section 3 1 6 Default Messages on page 8 for further details MESSAGE UP DOWN LEFT RIGHT To move between message groups within a page use the keys The key moves toward the end of the page and the key moves toward the beginning of the page A page h...

Страница 44: ...RS485 SERIAL PORT TEMPERATURE DISPLAY IN CELSIUS DEFAULT MESSAGE TIME 1 0 MINUTES DEFAULT MESSAGE BRIGHTNESS 60 BLOCK KEYPAD TRIP RESET NO MESSAGE MESSAGE SETPOINT MESSAGE MESSAGE SETPOINTS S2 SYSTEM SETUP SETPOINT ANALOG OUTPUT TYPE MOTOR LOAD ANALOG OUTPUT RANGE 0 1 mA MESSAGE MESSAGE SERIAL COMMS FAILURE ALARM OFF SLAVE ADDRESS 1 BAUD RATE 9600 BAUD MESSAGE MESSAGE MESSAGE MESSAGE MESSAGE MESSA...

Страница 45: ...Vista 239 Setup Interface for further details SCADA ENTRY Details of the complete communication protocol for reading and writing setpoints are given in 239 Communications Guide A SCADA system connected to the RS485 terminals can be customer programmed to make use of any of the communication commands for remote setpoint programming monitoring and control 3 1 5 Setpoint Access Hardware security is d...

Страница 46: ...e 239 will recognize the key as storing a setpoint instead of selecting a default message If 5 default messages are already selected the first message is erased and the new message is added to the end of the queue DELETING A DEFAULT MESSAGE Use the keys to display the default message to be erased If default messages are not known wait until the 239 starts to display them and then write them down I...

Страница 47: ...VED FROM THE DEFAULT MESSAGE QUEUE DISPLAYED FOR 3 SECONDS WHEN STORE KEY AND RESET KEY ARE PRESSED IN SEQENCE DISPLAYED FOR 3 SECONDS WHEN STORE KEY PRESSED REDEFMSG VSD STORE STORE NOT A SELECTED DEFAULT MESSAGE DISPLAYED FOR 3 SECONDS WHEN STORE KEY AND RESET KEY ARE PRESSED IN SEQENCE VALID DEFAULT MESSAGE NOT A DEFAULT MESSAGE SYSTEM STATUS NORMAL A 100 B 100 C 100 AMPS CURRENT UNBALANCE U B ...

Страница 48: ...3 10 239 MOTOR PROTECTION RELAY INSTRUCTION MANUAL CHAPTER 3 OPERATION ...

Страница 49: ...etpoint messages are organized into logical groups or pages for easy reference Setpoint messages are described individually and a reference of all messages is also provided at the end of the chapter Messages may vary somewhat from those illustrated because of installed options Also some messages associated with disabled features are hidden This context sensitive operation eliminates confusing deta...

Страница 50: ...TPOINT SETPOINT SETPOINT SETPOINT MESSAGE PREFERENCES ANALOG OUTPUT RS485 SERIAL PORT DEFAULTS PROGRAMMABLE MESSAGE PRODUCT OPTIONS CT INPUTS MOTOR DATA TRIP RELAY ALARM RELAY AUXILIARY RELAY PHASE CURRENT GROUND CURRENT TEMPERATURE SWITCH INPUTS GE POWER MANAGEMENT USE ONLY MESSAGE MESSAGE MESSAGE MESSAGE TEST CONFIGURATION TEST RELAY LEDS CURRENT SIMULATION ANALOG OUTPUT SIMULATION SWITCH INPUTS...

Страница 51: ...O SETPOINTS S2 SYSTEM SETUP SETPOINT Range CELSIUS FAHRENHEIT Range 0 1 to 5 0 OFF Step 0 1 min Range 0 to 100 Step 20 BLOCK KEYPAD TRIP RESET NO Range YES NO Range AVERAGE PHASE AMPS MOTOR LOAD THERMAL CAPACITY RTD 1 2 3 TEMPERATURE Range 0 1 mA 0 20 mA 4 20 mA Range ON OFF Range 1 255 Step 1 Range 1200 2400 4800 9600 19200 Range NONE EVEN ODD Range YES NO Range YES NO MESSAGE s t MESSAGE 4 MESSA...

Страница 52: ...setpoint or measured value can be selected as a default message Refer to Section 3 1 6 Default Messages on page 8 for information on removing and adding new default messages Default messages can be disabled by setting this setpoint to OFF When this setpoint is turned off the currently displayed message will remain displayed until a condition such as a trip alarm or key press forces the 239 to disp...

Страница 53: ...not affected OVERLOAD PICKUP DISPLAY ENABLE When an overload pickup has occurred this setpoint determines whether the 239 front display is automatically updated with the time to overload trip When this setpoint is programmed to NO an overload pickup will have no effect on the display The pickup LED indicator and overload protection are not affected by this setpoint 4 2 2 Analog Output ANALOG OUTPU...

Страница 54: ... 255 for this particular relay on the RS485 communication link This setpoint cannot be changed via the RS485 port A message sent with address 0 is a broadcast message to which all relays will listen but not respond Although addresses do not have to be sequential no two relays can have the same address or there will be conflicts resulting in errors Generally each relay added to the link will use th...

Страница 55: ...the serial port using the 239PC software Using the 239 keypad a new message can be written over the existing message as shown below TIPS The setpoint access jumper must be installed in order to alter the characters To skip over a character press the key If a character is entered incorrectly press the key repeatedly until the cursor returns to the position of the error and re enter the character To...

Страница 56: ...ys to the position the cursor at the error location Use the value up or down keys to select the correct character When the entire passcode has been entered correctly press the store key The 239 will then wait 2 seconds before resetting See flow diagram below NOTE Passcodes are obtained by contacting the factory There will be a charge which is dependant on the options Mods to be installed Desired M...

Страница 57: ...TRUCTION MANUAL 4 19 Step 5 Verify correct MODs were installed Step 6 Proceed with 239 setup Located in ACTUAL VALUES page A3 under the sub heading MODEL INFORMATION MOD NUMBER S 0 Located in ACTUAL VALUES page A3 under the sub heading MODEL INFORMATION ...

Страница 58: ...A Range RESIDUAL CORE BAL 50 0 025 COR BAL X 5 OFF Range 5 to 1500 Step 5 A Range 50 60 Range 1 to 1500 OFF Step 1 CT PRI SET 50 A Range 0 1 to 150 0 OFF Step 0 1 CT PRI SET 50A Range 1 00 to 5 00 Step 0 05 MESSAGE MESSAGE MESSAGE MESSAGE MESSAGE MESSAGE MESSAGE MESSAGE USE OVERLOAD PICKUP INHIBIT ON RUN LOCKED ROTOR CURRENT 6 0 x FLC SAFE STALL TIME COLD 10 0 s HOT COLD CURVE RATIO 85 END OF PAGE...

Страница 59: ... ground current detection a separate core balance zero sequence CT which encircles all three phase conductors can be used In this case select core balance 50 0 025 A GE Multilin 50 0 025 CT is available If a conventional 5 A secondary CT is used to encircle the 3 phase conductors enter core balance x 5 It is then necessary to specify the CT primary using the next message GROUND CT PRIMARY GROUND C...

Страница 60: ...art time allowed depends on the actual start current For example assuming the normal inrush current is 6 FLC If the actual current inrush current was only 5 FLC on a start and the SAFE STALL TIME COLD has been set to 20 seconds the actual maximum start time allowed would be If the SAFE STALL TIME and LOCKED ROTOR CURRENT settings cannot be determined from the motor nameplate then use the above for...

Страница 61: ...range of motor temperatures cold cool warm hot The steady state value of thermal capacity used for any phase current level can be calculated as For example if LRT Hot 7 0 s LRT Cold 10 0 s FLC 100 A and the actual motor current is 80 A then the steady state thermal capacity value will be DISABLE STARTS In some applications start protection may not be required Therefore by setting this setpoint to ...

Страница 62: ... FAILSAFE FAILSAFE Range UNLATCHED LATCHED Range NORMAL TRIPS ALARMS NON FAILSAFE The relay coil is not energized in its non active state Loss of control power will cause the relay to remain in the non active state i e a non failsafe alarm or trip relay will not cause an alarm or trip on loss of control power Contact configuration is shown in FIGURE 2 3 Typical Wiring Diagram on page 2 20 with rel...

Страница 63: ... external reset terminals or by sending the reset command via the computer 4 4 2 Alarm Relay ALARM OPERATION Any alarm condition will activate the alarm relay If an alarm is required when the 239 is not operational due to a loss of control power select FAILSAFE operation Otherwise choose NON FAILSAFE ALARM ACTIVATION If an alarm indication is only required while an alarm is present select UNLATCHE...

Страница 64: ...ed to be controlled by the function it s assigned to then configure this setpoint to NORMAL If the auxiliary relay is required to activate on an occurrence of an alarm or trip condition and remain energized while the alarm or trip condition is present then configure the setpoint to ALARM or TRIP depending on the requirement ...

Страница 65: ...AGE MESSAGE PHASE S C TRIP OFF IMMEDIATE OVERLOAD AUTO RESET O L TRIPS ONCE TC 15 NO Range OFF TRIP AUXILIARY TRIP AUXILIARY Range 1 0 to 11 Step 0 1 x CT Range 10 to 60000 INST Step 10 ms PHASE S C PICKUP 10 x CT PHASE S C DELAY INST ms Range YES NO IMMEDIATE OVERLOAD ALARM OFF IMMEDIATE OVERLOAD PICKUP 1 1 x FLC INHIBIT ON START FOR UNLIMITED s Range ON OFF Range 0 5 to 11 0 Step 0 1 x FLC Range...

Страница 66: ...LARM AUXILIARY TRIP ALARM AUX TRIP AUX Range 0 to 250 Step 1 s Range 5 to 100 Step 1 UNDERCURRENT PICKUP d 50 FLC UNDERCURRENT DELAY 2 s Range 5 to 100 Step 1 PHASE UNBALANCE TRIP ON PHASE UNBALANCE TRIP PICKUP t 20 PHASE UNBALANCE DELAY 2 s Range ON OFF Range 0 to 60 Step 1 s Range 0 to 6000 UNLIMITED Step 1 s SEE NEXT PAGE SEE NEXT PAGE MESSAGE MESSAGE MESSAGE MESSAGE PHASE UNBALANCE ALARM ON PH...

Страница 67: ...0 0 025 3 to 100 step 1 GND PRI X 5 RESIDUAL Range MOMENTARY LATCHED OFF Range 0 to 60 0 Step 0 1 s SEE NEXT PAGE MESSAGE MESSAGE SEE PREVIOUS PAGE SEE PREVIOUS PAGE Range 0 1 to 30 0 Step 0 1 kΩ THERMISTOR THERMISTOR FUNCTION OFF MESSAGE MESSAGE Range OFF ALARM TRIP AUXILIARY TRIP AUXILIARY Range 10 to 60000 INST Step 10 ms GROUND CURRENT GROUND ALARM MOMENTARY GROUND PRIMARY ALARM PICKUP 5 00 A ...

Страница 68: ... PAGE SEE NEXT PAGE MESSAGE MESSAGE MESSAGE MESSAGE RTD 3 ALARM TEMPERATURE 75 C SEE PREVIOUS PAGE SEE PREVIOUS PAGE RTD SENSOR FAILURE RTD SENSOR FAILURE ALARM OFF MESSAGE MESSAGE Range 0 to 200 C OFF step 1 C 0 to 400 F OFF step 1 F RTD 2 ALARM TEMPERATURE 75 C Range STATOR BEARING OFF Range 100PT 100NI 120NI 10CU Range 0 to 200 C OFF step 1 C 0 to 400 F OFF step 1 F Range 0 to 200 C OFF step 1 ...

Страница 69: ...US PAGE Range 5 to 1500 step 5 A SWITCH INPUTS MESSAGE 4 MESSAGE 3 SWITCH 1 FUNCTION OFF TIME DELAY 0 0 s 2nd PHASE CT PRIMARY 100 A 2nd MOTOR FULL LOAD CURRENT 100 A 2nd OVERLOAD CURVE NO 4 2nd PHASE S C TRIP OFF 2nd PHASE S C PICKUP 10 x CT 2nd PHASE S C DELAY INST ms SEE NEXT PAGE SEE NEXT PAGE Range 1 to 15 step 1 Range 1 to 1500 step 1 2nd CT PRIM set 50 A 0 1 to 150 0 step 0 1 2nd CT PRIM se...

Страница 70: ... 4 4th PHASE S C TRIP OFF 4th PHASE S C PICKUP 10 x CT 4th PHASE S C DELAY INST ms END OF PAGE 4 Range 20 alphanumeric characters Range OFF TRIP ALARM AUXILIARY ALTERNATE SETPOINTS DISABLE STARTS Range 0 to 60 0 step 0 1 s Range 5 to 1500 step 5 A Range 1 to 1500 step 1 3rd CT PRIM set 50 A 0 1 to 150 0 step 0 1 3rd CT PRIM set 50 A Range 1 to 15 step 1 Range OFF TRIP AUXILIARY TRIP AUXILIARY Rang...

Страница 71: ... when the motor current in any phase goes over the overload pickup FLC level During overload motor thermal capacity will increase accordingly until the trip relay is activated when 100 of the available thermal capacity has been reached After a trip the thermal memory locks out a reset until the motor has cooled sufficiently TC 15 to allow restarting OVERLOAD TRIP TIME CALCULATION This feature acts...

Страница 72: ...LOAD CURRENT 1 03 1 05 1 1 1 5 2 2 5 3 4 5 6 8 10 11 1 1437 854 416 7 70 0 29 2 16 7 10 9 5 8 3 64 2 50 1 39 0 88 0 73 2 2874 1707 833 4 140 0 58 3 33 3 21 9 11 7 7 29 5 00 2 78 1 77 1 46 3 4311 2561 1250 0 210 0 87 5 50 0 32 8 17 5 10 93 7 49 4 16 2 65 2 19 4 5748 3415 1666 7 280 0 116 6 66 6 43 7 23 3 14 57 9 99 5 55 3 53 2 91 5 7184 4269 2083 4 349 9 145 8 83 3 54 7 29 1 18 22 12 49 6 94 4 42 3...

Страница 73: ... prevent the contactor from attempting to trip during a short circuit If a breaker is used as the motor starter interrupting device short circuit protection would generally be enabled as it will normally be capable of handling the fault current Short circuit protection causes the breaker to open quickly to prevent excessive mechanical damage or fire due to any large phase current Complete protecti...

Страница 74: ...ng start condition using the INHIBIT ON START FOR setpoint described below INHIBIT ON START FOR If all other conditions are met for an immediate overload alarm to occur and the motor is starting the alarm will occur when the delay set in this setpoint has elapsed If this setpoint is set to UNLIMITED the immediate overload alarm will never occur during a start 4 5 4 Mechanical Jam MECHANICAL JAM FU...

Страница 75: ...ent loss of suction UNDERCURRENT PICKUP A further use of this feature is as a pre overload warning This is accomplished by setting the UNDERCURRENT PICKUP to be above the normal operating current of the motor but below the rated full load current Suppose a fan normally draws 90 A and the full load current FLC was set to 100 A which was the maximum rating for the fan motor If the undercurrent picku...

Страница 76: ...e opposite direction to the desired motor output Usually the increase in stator current is small 125 to 200 so that timed overcurrent protection takes a long time to trip However the much higher induced rotor current can cause extensive rotor damage in a short period of time Motors can tolerate different levels of current unbalance depending on the rotor design and heat dissipation characteristics...

Страница 77: ...e will operate BREAKER FAIL PICKUP DELAY If all other conditions are met the breaker failure feature will operate after the delay programmed in this setpoint has elapsed See Section 1 2 Specifications on page 8 for BREAKER FAILURE timing specifications BREAKER FAIL DROPOUT DELAY If the breaker opens or if the average three phase current falls below the BREAKER FAILURE PICKUP setpoint the breaker f...

Страница 78: ... the contactor is not capable of breaking the fault current in which case a backup detection system of sufficient interrupting capacity should be allowed to operate first When contactors are used in solidly grounded systems the ground fault trip time should be longer than the fuse interrupt time On resistance grounded systems where the ground current is limited to safe levels longer time delays ca...

Страница 79: ...61 for details on how the 239 detects a start condition GROUND ALARM For detecting momentary ground faults due to initial insulation breakdown and arcing this setpoint can be set to latched This is especially useful in mines where moisture buildup in the windings may start to cause excessive leakage Any short duration ground fault will then cause a latched alarm condition Set to momentary if a gro...

Страница 80: ...ther unforeseen causes direct temperature sensing is necessary Since temperature rise under these conditions is much slower the temperature detector will accurately sense the actual temperature within the motor which would not be true under a rapid heat buildup situation such as locked rotor for example THERMISTOR FUNCTION Linear sensing elements such as RTDs can give an output of actual temperatu...

Страница 81: ... input resistance becomes less than the S4 PROTECTION TEMPERATURE THERMISTOR THERMISTOR COLD RESISTANCE setting of 0 5 KΩ EXAMPLE 2 NTC THERMISTOR S4 PROTECTION TEMPERATURE THERMISTOR THERMISTOR HOT RESISTANCE 0 7 KΩ S4 PROTECTION TEMPERATURE THERMISTOR THERMISTOR COLD RESISTANCE 12 0 KΩ S4 PROTECTION TEMPERATURE THERMISTOR THERMISTOR FUNCTION TRIP The thermistor trip will occur when the thermisto...

Страница 82: ... will occur immediately after the input becomes equal to or exceeds the temperature setting Once a motor is running for several hours the actual temperature can be monitored and the settings reduced Over time a bearing problem such as a loss of lubricant will show up as an increased temperature Consequently a setting close to the actual operating temperature is desirable providing it does not gene...

Страница 83: ...0 19 Ω 40 104 115 5 Ω 123 0 Ω 149 8 Ω 10 58 Ω 50 122 119 4 Ω 129 1 Ω 157 7 Ω 10 97 Ω 60 140 123 2 Ω 135 3 Ω 165 9 Ω 11 35 Ω 70 158 127 1 Ω 141 7 Ω 174 3 Ω 11 74 Ω 80 176 130 9 Ω 148 3 Ω 182 8 Ω 12 12 Ω 90 194 134 7 Ω 154 9 Ω 191 6 Ω 12 51 Ω 100 212 138 5 Ω 161 8 Ω 200 6 Ω 12 90 Ω 110 230 142 3 Ω 168 8 Ω 209 9 Ω 13 28 Ω 120 248 146 1 Ω 176 0 Ω 219 3 Ω 13 67 Ω 130 266 149 8 Ω 183 3 Ω 228 9 Ω 14 06 Ω...

Страница 84: ...n of closure in conjunction with the DISABLE STARTS setpoint described in Section 4 34 3 2 Motor Data on page 4 21 In some applications start protection may not be required Therefore by setting this setpoint to YES the start protection on the 239 can be defeated If the setpoint is set to YES the 239 will go directly into run condition and overload curves will be employed to protect the connected l...

Страница 85: ...s shown in the table below there are six alternate setpoints that are divided into 3 sets The following table shows the conditions required to select the appropriate set of alternate setpoints The message shown below is available on the 239 to indicate which is the currently selected group The 239 will also indicate the setpoints group that was in use at the time of the last trip Table 4 4 Selecti...

Страница 86: ...4 48 239 MOTOR PROTECTION RELAY INSTRUCTION MANUAL CHAPTER 4 PROGRAMMING Located in ACTUAL VALUES pages A1 under the sub heading SWITCH STATUS ...

Страница 87: ...CHAPTER 4 PROGRAMMING 239 MOTOR PROTECTION RELAY INSTRUCTION MANUAL 4 49 FIGURE 4 7 Two Speed Motor Wiring Diagram ...

Страница 88: ...ON SERVICE RELAY LED ON ALL RELAYS ON PICKUP LED ON COMMUNICATE LED ON ALL LEDS ON Range ON OFF Range 5 to 300 UNLIMITED Step 5 min Range 0 to 10000 step 1 A CT PRI SET 50 A 0 to 1000 step 0 1 A CT PRI SET 50 A Range Same as PHASE A CURRENT Range OFF ON Range 5 to 300 UNLIMITED Step 5 min MESSAGE MESSAGE MESSAGE MESSAGE MESSAGE MESSAGE MESSAGE MESSAGE MESSAGE 4 MESSAGE 4 MESSAGE 4 MESSAGE 4 MESSAG...

Страница 89: ...RESISTANCE 0 Ω SIMULATION OFF SIMULATION ENABLED FOR 15 min RTD 1 TEMPERATURE 0 C RTD 2 TEMPERATURE 0 C RTD 3 TEMPERATURE 0 C GE POWER MANAGEMENT USE ONLY SERVICE PASSCODE 0 MESSAGE MESSAGE MESSAGE MESSAGE MESSAGE MESSAGE Range OFF ON Range 5 to 300 UNLIMITED Step 5 min Range 40 to 200 step 1 C if C 40 to 400 step 1 F if F Range 40 to 200 step 1 C if C 40 to 400 step 1 F if F Range 40 to 200 step ...

Страница 90: ...RRENT settings As a safeguard start protection will automatically be re enabled if power to the 239 is turned off and on time programmed in the S5 TESTING TEST CONFIGURATION DISABLE PROTECTION FOR setpoint has elapsed since the start protection was first disabled When start protection is disabled the following flash message will be displayed for 3 seconds When start protection is re enabled the fo...

Страница 91: ...peration As a safeguard relay and LED test will turn off automatically if power to the 239 is turned off and on phase or ground current is detected by the 239 current simulation is turned on new message is displayed 4 8 3 Current Simulation Simulated currents can be forced instead of the actual currents sensed by the external CTs connected to the 239 This allows verification of all current related...

Страница 92: ...e 239 should trip after a time determined by S4 PROTECTION PHASE CURRENT UNBALANCE PHASE UNBALANCE DELAY setpoint Set S5 TESTING CURRENT SIMULATION SIMULATION OFF after testing is complete GROUND CURRENT Enter the ground current for simulation of a ground fault Then set S5 TESTING CURRENT SIMULATION SIMULATION ON to see the effect of this current SIMULATION ENABLED FOR Select the desired length of...

Страница 93: ...enabled When the programmed time has elapsed analog output simulation will turn off If UNLIMITED is selected simulated analog output will be used until simulation is turned off via the SIMULATION ON OFF setpoint or via the serial port or until control power is removed from the 239 4 8 5 Switch Inputs Simulation SIMULATION Enter ON to switch from actual switch inputs to the programmed simulation st...

Страница 94: ... until control power is removed from the 239 4 8 6 Thermistor Simulation SIMULATION Enter ON to switch from actual thermistor input to the programmed simulation thermistor resistance value While simulation is on the actual thermistor input will be overridden by the simulated resistance value Set this setpoint to OFF after simulation is complete As a safeguard simulation will automatically turn off...

Страница 95: ...abled When RTD simulation is turned on the following flash message will be displayed for 3 seconds When RTD simulation is turned off the following flash message will be displayed for 3 seconds RTD 1 2 3 TEMPERATURE Enter the value of the each RTD temperature to be simulated The functionality of the RTDs remains as is with actual inputs connected to the 239 SIMULATION ENABLED FOR Select the desired...

Страница 96: ...4 58 239 MOTOR PROTECTION RELAY INSTRUCTION MANUAL CHAPTER 4 PROGRAMMING ...

Страница 97: ...ng 5 1 Monitoring 5 1 1 Actual Values Viewing Any measured value can be displayed on demand using the key Each time the key is pressed the beginning of a new page of monitored values is displayed These are grouped as A1 STATUS A2 METERING A3 PRODUCT INFO Use the keys in the same fashion as for setpoints to move between actual value messages A detailed description of each displayed message in these...

Страница 98: ...ues Message Organization ACTUAL VALUES A1 STATUS ACTUAL VALUES A2 METERING ACTUAL VALUES A3 PRODUCT INFO ACTUAL ACTUAL ACTUAL MESSAGE GENERAL LAST TRIP DATA SWITCH STATUS PROGRAMMABLE MESSAGE CURRENT MOTOR CAPACITY FIRWARE VERSIONS MODEL INFORMATION MESSAGE MESSAGE TEMPERATURE MOTOR STATISTICS ...

Страница 99: ...Iavg 110 FLC UNDERCURRENT ALARM Iavg 30 FLC UNBALANCE ALARM UB 10 GROUND ALARM Ignd 5 A STATOR RTD ALARM RTD 135 C BEARING RTD ALARM RTD 135 C RTD SENSOR FAILURE RTD 1 INTERNAL FAULT ALARM THERMISTOR ALARM THERMISTOR NOT CONNECTED THERMAL CAPACITY USED ALARM COMMUNICATION FAILURE ALARM OPTION SWITCH 1 ALARM OPTION SWITCH 2 ALARM MECHANICAL JAM ALARM BREAKER FAILURE ALARM NO ACTIVE ALARM SEE NEXT P...

Страница 100: ...0 ms worst case of initial detection of current by the 239 TIME TO TRIP This message is displayed when a trip condition is in progress The message display time is scaled as follows if the trip time is 10 0 minutes the display will be xxx x MINUTES 10 0 minutes the display will be xxx x SECONDS TIME TO OVERLOAD RESET This message displays the amount of time remaining before an OVERLOAD TRIP is allo...

Страница 101: ...ooled before restarting by checking each RTD temperature using the messages A2 METERING TEMPERATURE If the RTD is installed on a bearing an excessive bearing temperature usually indicates a need for lubrication or a fault with the bearing itself Lubricate the bearing then monitor its temperature closely after starting the motor SETPOINTS GROUP IN USE Alternate setpoints i e PHASE CT PRIMARY FULL L...

Страница 102: ...ned in Section 4 6 Switch Inputs on page 46 One of four possible groups of setpoints can be selected at once This message displays the currently selected group 5 2 5 Programmable Message A 40 character message can be programmed using the keypad or via the serial port using the 239PC software See 4 2 S1 239 Setup on page 13 for an example of programming this message using the keypad This message ca...

Страница 103: ... CT SET PRI 50 A Range 0 to 100 MESSAGE MESSAGE MESSAGE MESSAGE MESSAGE 4 MESSAGE 4 MESSAGE 4 MESSAGE 3 MESSAGE 3 STATOR RTD 1 TEMPERATURE 80 C BEARING RTD 2 TEMPERATURE 50 C BEARING RTD 3 TEMPERATURE 50 C THERMISTOR COLD TEMPERATURE Range 40 to 200 C 40 to 400 F Range HOT COLD NOT CONNECTED DESIGNATES ACTUAL VALUES THAT WILL ONLY BE DISPLAYED IF RTD OPTION IS INSTALLED AND THE CORRESPONDING RTD F...

Страница 104: ...a phase with maximum deviation from Iav IFLC motor full load current setting These formulas allow larger levels of unbalance to be tolerated by lightly loaded motors Excessive unbalance can be caused by loose terminal connections faulty utility supply a blown fuse or a faulty contactor 5 3 2 Motor Capacity MOTOR LOAD In order to gauge how closely the motor is running to its maximum capacity the mo...

Страница 105: ... rise in temperature Bearing temperatures vary with ambient conditions greasing wear and loading A significant increase in bearing temperature may indicate a problem that needs investigation Temperatures can be viewed in C or F by selecting the appropriate setpoint in S1 239SETUP PREFERENCES TEMPERATURE DISPLAY IN THERMISTOR Thermistors typically installed in motors for temperature detection are n...

Страница 106: ...NUMBER The MAIN PROGRAM VERSION identifies the firmware installed internally in the flash memory The title page of this instruction ACTUAL VALUES A3 PRODUCT INFO ACTUAL MESSAGE FIRMWARE REVISIONS MESSAGE MAIN PROGRAM VER 2 4 Nov 24 1999 BOOT PROGRAM VER 2 00 Mar 27 1997 SUPERVISOR PROG VER 1 02 Jul 17 1996 MODEL INFORMATION ORDER CODE 239 RTD AN MOD NUMBER S 000 ACTUAL VALUES A1 STATUS ACTUAL MESS...

Страница 107: ...39 to have more than one MOD NUMBER installed maximum of 5 In this case the message will display all the MOD NUMBERs separated by a comma i e 501 502 503 SERIAL NUMBER Each 239 shipped from the factory has a unique serial number for identification purposes The serial number displayed in this message will match the serial number found on the product label located on the back of the 239 HARDWARE REV...

Страница 108: ...5 70 239 MOTOR PROTECTION RELAY INSTRUCTION MANUAL CHAPTER 5 MONITORING ...

Страница 109: ...M 256 MB recommended Minimum of 50 MB hard disk space 200 MB recommended If EnerVista 239 Setup is currently installed note the path and directory name It may be required during upgrading The EnerVista 239 Setup software is included on the GE enerVista CD that accompanied the 239 The software may also be downloaded from the GE Multilin website at http www GEindustrial com multilin 6 1 2 Installing...

Страница 110: ...tallation program from the Web or CD Once the download is complete double click the installation program to install the EnerVista 239 Setup software The program will request the user to create a backup 3 5 floppy disk set If this is desired click on the Start Copying button otherwise click on the CONTINUE WITH 239 INSTALLATION button Select the complete path including the new directory name where ...

Страница 111: ... User Interface 239 MOTOR PROTECTION RELAY INSTRUCTION MANUAL 6 73 Click Finish to end the installation The 239 device will be added to the list of installed IEDs in the enerVista Launchpad window as shown below ...

Страница 112: ...6 73 Install and start the latest version of the EnerVista 239 Setup software available from the GE enerVista CD See the previous section for the installation procedure Click on the Device Setup button to open the Device Setup window Click the Add Site button to define a new site Enter the desired site name in the Site Name field If desired a short description of site can also be entered along wit...

Страница 113: ...vice will be added to the Site List window or Online window located in the top left corner of the main EnerVista 239 Setup window The 239 Site Device has now been configured for serial communications Proceed to Connecting to the Relay on page 6 75 to begin communications 6 2 2 Configuring Ethernet Communications Before starting verify that the Ethernet cable is properly connected to the MultiNET d...

Страница 114: ...he site Select Ethernet from the Interface drop down list This will display a number of interface parameters that must be entered for proper Ethernet functionality Enter the IP address assigned to the MultiNET adapter Enter the slave address and Modbus port values from the S1 239 SETUP 239 COMMUNICATIONS menu in the Slave Address and Modbus Port fields Click the Read Order Code button to connect t...

Страница 115: ...d by clicking the box The following list of headers is shown for each device Device Definitions Settings Actual Values Communications Expand the Settings Relay Setup list item and double click on Front Panel to open the Front Panel settings window as shown below FIGURE 6 1 Main Window After Connection The Front Panel settings window will open with a corresponding status indicator on the lower left...

Страница 116: ...nged according to user specifications Other setpoint and commands windows can be displayed and edited in a similar manner Actual values windows are also available for display These windows can be locked arranged and resized at will Note Refer to the EnerVista 239 Setup Help File for additional information about the using the software ...

Страница 117: ... selected from the SR or UR product series 6 3 2 Entering Setpoints The System Setup page will be used as an example to illustrate the entering of setpoints In this example we will be changing the current sensing setpoints Establish communications with the relay Select the Setpoint S2 System Setup CT VT Setup menu item This can be selected from the device setpoint tree or the main window menu bar ...

Страница 118: ...the keypad and retain the old value For setpoints requiring non numerical pre set values e g GROUND CT TYPE above clicking anywhere within the setpoint value box displays a drop down selection menu arrow Select the desired value from this list For setpoints requiring an alphanumeric text string e g message scratchpad messages the value may be entered directly within the setpoint value box Click on...

Страница 119: ... then saving them to the relay when complete Settings files are organized on the basis of file names assigned by the user A settings file contains data pertaining to the following categories of relay settings Device Definition Product Setup System Setup Grouped Elements Control Elements Inputs Outputs Testing Factory default values are supplied and can be restored after any changes The EnerVista 2...

Страница 120: ...l be added to the tree in the File pane showing path and file name for the setpoint file Adding Setpoints Files to the Environment The EnerVista 239 Setup software provides the capability to review and manage a large group of setpoint files Use the following procedure to add a new or existing file to the list In the files pane right click on Files Select the Add Existing Setting File item as shown...

Страница 121: ... not available in a particular version are not downloaded into the relay Select the file name and path to store the file or select any displayed file name to update an existing file To select the file name and path for the new file click the button beside the File Name box All 239 Settings Files should have the extension 239 for example motor1 239 Select the Firmware Version for the new Settings F...

Страница 122: ... Setpoints Files to the Environment on page 6 80 In the Files pane select the saved setpoint file From the main window menu bar select the File Properties menu item Note the File Version of the setpoint file If this version is different from the Software Revision code noted in step 2 select a New File Version that matches the Software Revision code from the pull down menu When complete click Conve...

Страница 123: ...same manner by right clicking on the desired file in the file list or device in the device list and selecting the Print Device Information or Print Settings File options A complete list of actual values can also be printed from a connected device with the following procedure Establish communications with the desired 239 device From the main window select the File Print Settings menu item The Print...

Страница 124: ...o the Environment on page 6 80 Select the previously saved setpoints file from the File pane of the EnerVista 239 Setup software main window Select the File Properties menu item and verify that the corresponding file is fully compatible with the hardware and firmware version of the target relay If the versions are not identical see Upgrading Setpoint Files to a New Revision on page 6 82 for detail...

Страница 125: ...to a file on your PC After the firmware has been upgraded it will be necessary to load this file back into the 239 Refer to Downloading and Saving Setpoints Files on page 6 79 for details on saving relay setpoints to a file 6 4 3 Loading New Firmware Loading new firmware into the 239 flash memory is accomplished as follows Connect the relay to the local PC and save the setpoints to a file as shown...

Страница 126: ...proximately five minutes The EnerVista 239 Setup software will notify the user when the 239 has finished loading the file Carefully read any displayed messages Click OK to return the main screen Note Cycling power to the relay is highly recommended after a firmware upgrade 6 4 4 Upgrading and Loading Settings Files Note If the relay is not communicating with the EnerVista 239 Setup program check y...

Страница 127: ...w the procedure to convert upgrade a settings file to the new firmware version refer to the section Upgrading Setpoint Files to a New Revision shown above Load the converted settings file s into the relay To view the procedure to load setpoints from a settings file to the relay refer to the section Loading Setpoints from a File shown above ...

Страница 128: ...ity used To use the Trending function Run the EnerVista 239 Setup software and establish communications with a connected 239 unit Select the Actual Values Trending Trending menu item to open the Trending window FIGURE 6 2 Trending View MODE SELECT Select one of these buttons to view Cursor Line 1 2 or Delta difference values for the graph BUTTONS Print Setup to edit graph attri butes Zoom In Zoom ...

Страница 129: ...gin the trending sampling The trended values can be printed using Print Trending Graph button The Trending File Setup button can be used to write the graph data to a file in a standard spreadsheet format Ensure that the Write Trended Data to File box is checked and that the Sample Rate is at a minimum of 5 seconds Set the file capacity limit to the amount of memory available for trended data ...

Страница 130: ...splayed 6 5 3 Viewing Actual Values You can view real time relay data such as input output status and measured parameters From the main window menu bar selecting Actual Values opens a window with tabs each tab containing data in accordance to the following list Motor Status Motor Statistics Last Trip Alarm Status Metering Data Currents Motor Capacity Temperature Trending see section 6 5 1 above Pr...

Страница 131: ...TION MANUAL 6 93 Double click with the left mouse button Each group will be opened on a separate tab The windows can be rearranged to maximize data viewing as shown in the following figure showing actual current voltage and power values tiled in the same window ...

Страница 132: ...eed to purchase a license to continue using enerVista Viewpoint Information on license pricing can be found at http www enerVista com Install the EnerVista Viewpoint software from the GE enerVista CD Ensure that the 239 device has been properly configured for either serial or Ethernet communications see previous sections for details Click the Viewpoint window in EnerVista to log into EnerVista Vie...

Страница 133: ... interface Ethernet or Serial and fill in the required information for the 239 See Connecting EnerVista 239 Setup to the Relay on page 6 72 for details FIGURE 6 4 Device Setup Screen Example Click the Read Order Code button to connect to the 239 device and upload the order code If a communications error occurs ensure that communications values entered in the previous step correspond to the relay s...

Страница 134: ... Click the Dashboard button below the 239 icon to view the device information We have now successfully accessed our 239 through EnerVista Viewpoint FIGURE 6 6 EnerVista 239 Plug and Play Screen Example For additional information on EnerVista viewpoint please visit the EnerVista website at http www EnerVista com ...

Страница 135: ... Testing 7 1 Testing 7 1 1 Primary Injection Testing Prior to relay commissioning at installation complete system operation can be verified by injecting current through the phase and ground CTs To accomplish this a primary high current injection test set is required Operation of the entire relay system except the phase and ground CTs can be checked by applying input signals to the 239 from a secon...

Страница 136: ...dary injection test as shown in the figure below to perform the tests described in the following sections Tests should be performed to verify the correct operation and wiring All functions are firmware driven and this testing will verify correct firmware hardware interaction FIGURE 7 1 SECONDARY INJECTION TEST SETUP ...

Страница 137: ...ected readings stated in the table 3 Alter the setup to inject current into the 1 A input of each phase and repeat the above step with current settings shown in the table below Table 7 1 Phase Current Accuracy Test 5 A Input INJECTED CURRENT EXPECTED READING IN EACH PHASE ACTUAL PHASE A READING A ACTUAL PHASE B READING A ACTUAL PHASE C READING A 0 5 A 10 A 1 0 A 20 A 3 5 A 70 A 5 0 A 100 A 10 0 A ...

Страница 138: ... is injected 3 Inject a current of 10 A into all three phases The relay will display a current value of This represents four times S2 SYSTEM SETUP MOTOR DATA MOTOR FULL LOAD CURRENT setpoint Therefore based on a 400 overload and curve 4 the trip relay should activate after a time of 23 3 seconds after the overload is first applied 4 After the overload trip has occurred verify by viewing A2 METERIN...

Страница 139: ...ble below record the injected current level at the point when the unbalance alarm occurred Use the formulae shown below to calculate percent unbalance using the currents recorded in the table Compare the calculated value to the displayed value on A2 METERING CURRENT CURRENT UNBALANCE U B and ensure they are match 3 Unbalance is calculated as follows For average currents Iav greater than or equal t...

Страница 140: ...t unbalance given the following information The average of the three phase currents is Now since Iav IFLC we have percent unbalance given by Therefore the percent unbalance in this case is 18 PRIMARY SECONDARY 5A Ia 73 A 3 65 A Ib 100 A 5 A Ic 100 A 5 A Iav Ia Ib Ic 3 73 100 100 3 A 273 3 A 91 A UB Im Iav IFLC 100 73 91 100 100 18 ...

Страница 141: ...stated in the table 7 6 1 50 0 025 Ground Accuracy Test 1 Alter the following setpoint S2 SYSTEM SETUP CT INPUTS GROUND SENSING CORE BAL 50 0 025 2 Inject the values shown below as primary values into a GE Multilin 50 0 025 Core Balance CT View the readings in A2 METERING CURRENT GROUND CURRENT and verify with the expected readings shown in the following table Table 7 4 Ground Current Accuracy Tes...

Страница 142: ...ING CURRENT GROUND CURRENT begin injecting current into the 5A ground input The ALARM LED will become lit and the alarm relay will change state at one half the trip setting i e at a displayed Ground Fault current of 40 A 40 of PHASE CT PRIMARY setting 3 With the display showing GROUND ALARM message change the display to A2 METERING CURRENT GROUND CURRENT and continue increasing the input current W...

Страница 143: ...and close each switch input and note that the display reflects the present status of the input terminals Verify the results with the table below Table 7 6 Switch Input Test SWITCH NAME INPUT TERMINAL STATUS EXPECTED DISPLAY READING SW 1 ACCESS OPEN OPEN SHORTED CLOSED SW2 EMERG RESTART OPEN OPEN SHORTED CLOSED SW3 EXTERNAL RESET OPEN OPEN SHORTED CLOSED SW4 OPTION 1 OPEN OPEN SHORTED CLOSED SW5 OP...

Страница 144: ...ANALOG OUTPUT SIMULATION ANALOG OUTPUT FORCED TO force the output to various levels shown in the table below and view the results on the DC ammeter Verify the meter results with expected results shown in the table below If the 239 is turned off or 15 minutes have expired since S5 TESTING ANALOG OUTPUT SIMULATION SIMULATION was turned on this setpoint will automatically turn off to disable analog o...

Страница 145: ...or alarm occurs Verify that the ALARM LED becomes lit and a THERMISTOR ALARM message is displayed by the 239 4 Remove the variable resistor and measure its resistance with an ohmmeter to verify that it agrees with the S4 PROTECTION TEMPERATURE THERMISTOR HOT RESISTANCE setpoint 5 Place the variable resistor back on terminals 21 and 22 and start decreasing its resistance until the thermistor alarm ...

Страница 146: ...RTD 1 RTD 1 ALARM TEMPERATURE OFF 2 To verify RTD 1 readings ensure a 10 turn 200 Ω variable resistor is connected to terminals 49 50 and 51 as shown in FIGURE 7 1 SECONDARY INJECTION TEST SETUP on page 7 98 3 Using Table 4 3 RTD Resistance VS Temperature on page 4 45 as a reference input various resistances and verify that displayed temperatures in A2 METERING TEMPERATURE BEARING RTD 1 TEMPERATUR...

Страница 147: ...nergized state and the SERVICE LED turns on This phenomenon should occur after the voltage has decreased below 70 V 2 To test the memory circuitry of the relay remove and then re apply control power All stored setpoints and statistical data should be unchanged The displayed thermal capacity in A2 METERING MOTOR CAPACITY will continue to decrease even when control power is removed An accurate value...

Страница 148: ...ready accumulated Larger overloads representing short circuits or mechanical jams can be simulated by changing the S2 SYSTEM SETUP MOTOR DATA MOTOR FULL LOAD CURRENT setpoint to a value much lower than the actual motor phase current 3 Unbalance trip or alarm conditions can be simulated by changing the Unbalance Trip or Alarm Level setpoints to values below the actual unbalance present at the motor...

Страница 149: ...CHAPTER 7 TESTING 239 MOTOR PROTECTION RELAY INSTRUCTION MANUAL 7 111 FIGURE 7 2 239 Hardware Block Diagram ...

Страница 150: ...7 112 239 MOTOR PROTECTION RELAY INSTRUCTION MANUAL CHAPTER 7 TESTING ...

Страница 151: ... or replace the relay providing the warrantor determined that it is defective and it is returned with all transportation charges prepaid to an authorized service centre or the factory Repairs or replacement under warranty will be made without charge Warranty shall not apply to any relay which has been subject to misuse negligence accident incorrect installation or use not in accordance with instru...

Страница 152: ...A 2 239 MOTOR PROTECTION RELAY INSTRUCTION MANUAL CHAPTER A ...

Страница 153: ...TATUS 5 62 ACTUAL VALUES PAGE 2 METERING 5 65 ACTUAL VALUES PAGE 3 PRODUCT INFO 5 68 ALARM ACTIVATION 4 25 ALARM OPERATION 4 25 ALARM RELAY 4 25 ALARMS cause of alarm 5 62 serial communications failure 4 16 thermal capacity used 4 39 unbalance 4 38 ANALOG OUTPUT description 2 28 range 4 15 range assignment 2 29 setpoints 4 15 type 4 15 ANALOG OUTPUT RANGE 4 15 ANALOG OUTPUT SIMULATION 4 54 ANALOG ...

Страница 154: ...16 CONTINUOUS PROTECTION FEATURES 1 3 CONTROL POWER 2 21 testing 7 109 CORE BALANCE GROUND CT INSTALLATION 2 23 2 24 CT INPUTS 4 21 CT RATINGS 2 21 CURRENT 5 66 actual values 5 63 ground 5 63 5 66 phase current values 5 66 unbalance 5 66 CURRENT SIMULATION 4 53 CURRENT UNBALANCE 5 63 5 66 CURVES 4 34 D DEFAULT MESSAGE BRIGHTNESS 4 15 DEFAULT MESSAGE TIME 4 14 DEFAULT MESSAGES description 3 8 seque...

Страница 155: ...NT 4 21 G GROUND ALARM AND TRIP TEST 7 104 GROUND CT INPUT 2 22 GROUND CT PRIMARY 4 21 GROUND CURRENT 4 39 5 63 5 66 accuracy test 7 103 simulation 4 54 testing 7 103 GROUND SENSING 4 21 GROUNDING 2 31 H HARDWARE BLOCK DIAGRAM 7 111 HARDWARE REVISION 5 69 HOT MOTOR 4 39 HOT COLD CURVE RATIO 4 22 I IED SETUP 6 72 IMMEDIATE OVERLOAD 4 36 IMMEDIATE OVERLOAD ALARM 4 36 IMMEDIATE OVERLOAD ALARM PICKUP ...

Страница 156: ... 5 63 MOTOR STATISTICS CLEARING 4 17 MOTOR STATUS 5 62 MOUNTING 2 15 MULTI SPEED MOTOR 4 47 N NOMINAL FREQUENCY 4 21 NON FAILSAFE 4 24 NON VOLATILE MEMORY TEST 7 109 O OPTION SWITCH 1 2 4 46 ORDER CODE 1 7 5 69 OUTPUT RELAYS 2 24 OVERLOAD 4 33 OVERLOAD CURVE 4 33 OVERLOAD CURVES 4 34 timed 4 34 OVERLOAD LOCKOUT TIME 4 33 OVERLOAD PICKUP DISPLAY ENABLE 4 15 OVERLOAD PICKUP INHIBIT 4 21 OVERLOAD RES...

Страница 157: ... PRIMARY INJECTION TESTING 7 97 PRODUCT IDENTIFICATION 2 16 PRODUCT LABEL 2 17 PRODUCT OPTIONS 4 18 PROGRAMMABLE MESSAGE 4 17 5 64 PROGRAMMING 4 11 R REAR HIGHLIGHTS 1 5 REVISIONS firmware 2 17 manual 2 17 ROUTINE MAINTENANCE VERIFICATION 7 110 RS232 COMMUNICATIONS configuring with EnerVista 369 Setup 6 74 configuring with EnerVista 369 setup 6 75 RS485 COMMUNICATION wiring 2 30 RS485 COMMUNICATIO...

Страница 158: ... 42 SETPOINTS alarm relay 4 25 analog output 4 15 auxiliary relay 4 25 breaker failure 4 39 CT inputs 4 21 defaults 4 16 entering with EnerVista 369 Setup software 6 79 entry methods 4 11 ground current 4 39 groups in use 5 63 hot motor 4 39 immediate overload 4 36 loading from a file 6 86 mechanical jam 4 36 motor data 4 21 overload 4 33 preferences 4 14 product options 4 18 programmable message ...

Страница 159: ...104 ground current accuracy test 7 103 phase current accuracy test 7 99 phase current overload test 7 100 Phase unbalance test 7 101 power failure and memory test 7 109 primary injection test 7 97 RTDs measurement test 7 108 secondary injection test 7 98 switch inputs 7 105 Thermistor alarm test 7 107 THERMAL CAPACITY USED 5 66 calculating 4 23 THERMAL CAPACITY USED ALARM 4 39 THERMISTOR 4 42 inpu...

Страница 160: ...WO SPEED MOTOR WIRING DIAGRAM 4 49 TYPICAL APPLICATIONS 1 6 TYPICAL CT RATINGS 2 21 TYPICAL WIRING DIAGRAM 2 20 U UNBALANCE 4 38 actual values 5 63 calculating 4 38 7 102 formula 5 66 testing 7 101 UNDERCURRENT 4 37 UPGRADING FIRMWARE 6 87 W WARRANTY A 1 WIRING DIAGRAM 2 20 ...

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