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GE Digital Energy Multilin 239 Instruction Manual

Motor protection relay
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Digital Energy
239
Motor Protection Relay
CAUSE OF LAST TRIP:
MECHANICAL JAM
TRIP
AUXILIARY
ALARM
SERVICE
A
UA
P I
R
R
GE Digital Energy
215 Anderson Avenue, Markham, Ontario
Canada L6E 1B3
Tel: (905) 294-6222 Fax: (905) 201-2098
Internet: http://www.GEmultilin.com
*1601-0067-DC*
Courtesy of NationalSwitchgear.com
MOTOR PROTECTION RELAY
PICKUP
COMMUNICATE
M
AG
VA U
239
Instruction Manual
Firmware Revision: 2.7x
239PC Software: 2.7x or newer
Manual P/N: 1601-0060-DD (GEK-113215D)
Copyright © 2011 GE Multilin
E83849
I I SO9001:2000
LISTED
IND.CONT. EQ.
52TL
GE Digital Energy's Quality
Management System is
registered to ISO9001:2000
QMI # 005094
UL # A3775

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  • Page 1 E83849 I I SO9001:2000 LISTED GE Digital Energy IND.CONT. EQ. 52TL 215 Anderson Avenue, Markham, Ontario GE Digital Energy’s Quality Canada L6E 1B3 Management System is registered to ISO9001:2000 Tel: (905) 294-6222 Fax: (905) 201-2098 QMI # 005094 Internet: http://www.GEmultilin.com...
  • Page 2 239 Motor Protection Relay, is a registered trademark of GE Digital Energy Inc. The contents of this manual are 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.

  • Page 3: Table Of Contents

    TABLE OF CONTENTS Table of Contents 1: OVERVIEW OVERVIEW ......................1-1 239 R ......................1-1 ELAY EATURES ....................... 1-6 YPICAL PPLICATIONS ........................1-7 RDER SPECIFICATIONS ....................1-8 2: INSTALLATION INSTALLATION ....................2-15 ........................... 2-15 OUNTING ....................2-16 RODUCT DENTIFICATION ....................2-18 XTERNAL ONNECTIONS ..................
  • Page 4 TABLE OF CONTENTS ........................4-42 EMPERATURE SWITCH INPUTS ....................4-46 1-2 ......................4-46 PTION WITCH MULTI-SPEED MOTOR ..................4-47 S5: TESTING ......................4-50 ......................4-52 ONFIGURATION & L ..................4-52 UTPUT ELAYS ......................4-53 URRENT IMULATION ..................4-54 NALOG UTPUT IMULATION ....................
  • Page 5 TABLE OF CONTENTS USING ENERVISTA VIEWPOINT WITH THE 239 ......... 6-94 ....................6-94 LUG AND XAMPLE 7: TESTING TESTING ....................... 7-97 .................... 7-97 RIMARY NJECTION ESTING SECONDARY INJECTION TESTING ..............7-98 PHASE CURRENT ACCURACY ................ 7-99 PHASE CURRENT OVERLOAD ................ 7-100 PHASE UNBALANCE ALARM .................
  • Page 6 TABLE OF CONTENTS TOC–4 369 MOTOR MANAGEMENT RELAY– INSTRUCTION MANUAL Courtesy of NationalSwitchgear.com...

  • Page 7: Relay Features

    1.1.1 239 Relay Features The GE Multilin 239 relay is designed to fully protect three phase AC motors against conditions which can cause damage. In addition to motor protection, the relay has features that can protect associated mechanical equipment, 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.
  • Page 8 CHAPTER 1: OVERVIEW RTDs can be monitored. These can all be in the stator or 1 in the stator and 2 in the bearings. Installing a 239 in a motor starter for protection and monitoring of motors will minimize downtime due to process problems. Table 1–1: PROTECTION FEATURES...
  • Page 9 CHAPTER 1: OVERVIEW 400A 3 PHASE 4160V BUS 239 RELAY UNDERCURRENT FUSED TRIP UNBALANCE CONTACTOR TRIP LOCKED ROTOR RELAY SHORT CIRCUIT FAULT/ PHASE PROCESS ALARM ALARM RELAY TIMED OVERLOAD FAULT/ GROUND AUXILIARY ALARM/ INSTANTANEOUS RELAY PROCESS THERMISTOR/ GROUND FAULT CONTROL STATOR RTD STATOR OVER SERVICE...
  • Page 10 CHAPTER 1: OVERVIEW FIGURE 1–2: Feature Highlights – Front 1–4 239 MOTOR PROTECTION RELAY – INSTRUCTION MANUAL Courtesy of NationalSwitchgear.com...
  • Page 11 CHAPTER 1: OVERVIEW FIGURE 1–3: Feature Highlights – Rear 239 MOTOR PROTECTION RELAY – INSTRUCTION MANUAL 1–5 Courtesy of NationalSwitchgear.com...

  • Page 12: Typical Applications

    CHAPTER 1: OVERVIEW 1.1.2 Typical Applications Versatile features and simple programming controls make the 239 an ideal choice for motor and equipment protection in a wide range of applications. In addition to basic electrical protection for motors, the 239 can protect against common faults due to process problems, such as: Mechanical protection of pumps using the undercurrent feature to detect loss of suction or a closed discharge valve.

  • Page 13: Order Code

    CHAPTER 1: OVERVIEW 1.1.3 Order Code 3 RTDs: mix stator/bearing Programmable type: platinum, nickel, copper Single, isolated, analog output 0-1, 0-20, 4-20 mA Programmable output parameter: thermal capacity, % full load, phase current RTD1, RTD2, RTD3 temperature Harsh environment conformal coating MODIFICATIONS •...

  • Page 14: Specifications

    CHAPTER 1: OVERVIEW Specifications PHASE CURRENT INPUTS Conversion:............true rms, 16 samples/cycle CT Input:..............1 A and 5 A secondary Range:..............0.1 to 11 × phase CT primary Frequency: ............20 to 300 Hz Accuracy:............±2% of full scale GROUND CURRENT INPUTS Conversion:............true rms, 16 samples/cycle CT Input:..............5 A secondary and 50:0.025 Range:..............0.03 to 1.4 ×...
  • Page 15 CHAPTER 1: OVERVIEW Safe Stall Time:..........1.0 to 600.0 sec THERMAL MODELING Thermal Capacity:..........separate start/run, exponential cool down Cool Rate:............Stop: ..............1 to 5000 minutes programmable Run: ..............50% of stopped cool time Hot/cold: ............50 to 100%, hot after 15 min running Lockout:............1 to 5000 min programmable ±20% power on / off UNBALANCE Range:..............5 to 100% / OFF...
  • Page 16 CHAPTER 1: OVERVIEW ANALOG OUTPUT (OPTIONAL) PROGRAMMABLE OUTPUT 0-1 mA 0-20 mA 4-20 mA 2400 Ω 600 Ω 600 Ω MAX LOAD MAX OUTPUT 1.1 mA 21 mA 21 mA Accuracy:............±2% of full scale reading Isolation: .............36 V DC isolated, active source OUTPUT RELAYS VOLTAGE MAKE/...
  • Page 17 CHAPTER 1: OVERVIEW BURDEN 1s xCT 5s xCT continuous PHASE CT (1A) PHASE CT (5A) GROUND CT (5A) 50:0.025 GROUND INPUT WITHSTAND: Continuous:............150 mA Maximum: ............12 A for 3 cycles 50:0.025 input can be driven by a 50:0.025 CT. SWITCH INPUTS Type: ..............dry contacts Output: ..............29 V DC, 10 mA (pulsed) Duration:.............100 ms minimum...
  • Page 18 CHAPTER 1: OVERVIEW TYPE TESTS TEST REFERENCE STANDARD TEST LEVEL Dielectric voltage withstand 2300VAC Impulse voltage withstand EN60255-27 Insulation resistance 500VDC >100mohm Electrostatic Discharge IEC61000-4-2 Level 4 RF immunity IEC61000-4-3 10V/m 80-1Ghz,1.4-2.7Ghz +spot Fast Transient Disturbance IEC61000-4-4 Class B Surge Immunity IEC61000-4-5 2Kv &...
  • Page 19 CHAPTER 1: OVERVIEW PRODUCTION TESTS Dielectric Strength: ........2200 VAC for 1 second PACKAGING Shipping Box:............8½" × 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...
  • Page 20 CHAPTER 1: OVERVIEW 1–14 239 MOTOR PROTECTION RELAY – INSTRUCTION MANUAL Courtesy of NationalSwitchgear.com...

  • Page 21: Mounting

    Digital Energy 239 Motor Protection Relay Motor Protection Relay CAUSE OF LAST TRIP: MECHANICAL JAM Chapter 2: Installation TRIP AUXILIARY PICKUP ALARM SERVICE COMMUNICATE P IN VA U Installation 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.

  • Page 22: Product Identification

    CHAPTER 2: INSTALLATION FIGURE 2–1: 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. 2–16 239 MOTOR PROTECTION RELAY –...
  • Page 23 CHAPTER 2: INSTALLATION The information included on the product label is explained below: MODEL 239-RTD-AN 64D240C4.000 110.000 FIRMWARE GE Power Management MAXIMUM CONTACT RATING MAXIMUM CONTACT RATING 90-300VDC 20VA SUPPLY VOLTAGE SERIAL NO.: D6401234 SUPPLY VOLTAGE 250 VAC 10A RESISTIVE 250 VAC RESISTIVE 70-265VAC 50/60HZ 20VA...

  • Page 24: External Connections

    CHAPTER 2: INSTALLATION Table 2–1: Firmware/manual Revisions Table MANUAL PART FIRMWARE MANUAL PART FIRMWARE VERSION VERSION 1601-00XX-D3 2.3x 1601-00XX-DA 2.6x 1601-00XX-D4 2.3x 1601-00XX-DB 2.7x 2.1.3 External Connections Signal wiring is to box terminals that can accommodate wire as large as 12 gauge. CT connections are made using #8 screw ring terminals that can accept wire as large as 8 gauge (see FIGURE 2–3: Typical Wiring Diagram on page 2–20).
  • Page 25 CHAPTER 2: INSTALLATION Table 2–2: External Connections CT ROW SIGNAL LOWER ROW SIGNAL UPPER ROW Auxiliary NC RTD2 ret Service NO RTD3 hot Service COM RTD3 comp Service NC RTD3 ret V1 polarizing Vcom polarizing (Mod 509 only) (Mod 509 only) * Safety Ground terminal.
  • Page 26 CHAPTER 2: INSTALLATION 2 CT CONNECTION RESIDUAL GROUND CONNECTION (NO GROUND) PHASE A CT PHASE A CT PHASE B CT PHASE C CT PHASE C CT 50:0.025 50:0.025 PHASE A PHASE B PHASE C GROUND PHASE A PHASE B PHASE C GROUND ZERO SEQUENCE GROUND CONNECTION STARTER...
  • Page 27 CHAPTER 2: INSTALLATION CONTROL POWER (36/37) A universal AC/DC power supply is standard. It covers the range 90 to 300 V DC and 70 to 265 V AC at 50/60 Hz. It is not necessary to make any adjustment to the relay as long as the control voltage falls within this range.
  • Page 28 CHAPTER 2: INSTALLATION Table 2–3: Typical CT Ratings ORGANIZATI 239 CT CLASS TYPE DEFINITIONS INPUT P = Protection class 5 = Maximum %voltage error at limiting factor 15 = Limit factor, determines max. voltage CT can deliver to load 5P15 0.2VA 1 Amp burden without exceeding the %voltage error IEC (Europe)
  • Page 29 CHAPTER 2: INSTALLATION ground fault alarm 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) 239 MOTOR PROTECTION RELAY –...
  • Page 30 CHAPTER 2: INSTALLATION FIGURE 2–5: Core Balance Ground CT Installation (shielded cable) OUTPUT RELAYS There are 4 output relays each with form C contacts (normally open (NO), normally closed (NC), and common (COM)). Contact ratings for each relay are identical and are listed in Section 1.2: Specifications.
  • Page 31 CHAPTER 2: INSTALLATION considerations are more important than protection, program non-failsafe and wire the contactor to the NC/COM trip relay terminals. When control power to the 239 is lost, no protection is available and the motor will continue to run. This has the advantage that the process will not shut down, however the motor may be damaged if a fault develops under these conditions.
  • Page 32 CHAPTER 2: INSTALLATION programmed to be failsafe so that in the normal condition, with control power applied, the relay is energized and the NO/COM terminals shown in FIGURE 2–3: Typical Wiring Diagram on page 2–20 are closed. Connect these relay contacts to a suitable signaling input of a DCS system.
  • Page 33 CHAPTER 2: INSTALLATION 39 and 44. Momentarily shorting these terminals together will cause the thermal memory of the 239 to discharge to 0% used. The emergency restart terminals can be used to override a trip lockout caused by a running overload or locked rotor start. This option should be used only when an immediate restart after a lock-out trip is required for process continuity.
  • Page 34 CHAPTER 2: INSTALLATION programmed correctly so that each RTD input matches the installed type. The factory default is 100 Ω platinum. RTDs are placed in the stator slots and/or motor bearings to provide the required sensing signals to the 239 relay. Up to 3 resistance temperature detectors (RTDs) may be used for motor stator and bearing temperature monitoring.
  • Page 35 CHAPTER 2: INSTALLATION output: phase CT (secondary) amps, % motor full load current (FLC), thermal capacity used (100% = motor tripped), RTD1 temperature, RTD2 temperature, or RTD3 temperature. The RANGE message selects the output current as: 0-1 mA, 0-20 mA or 4-20 mA. Range assignment is shown below in Table 2–4: Analog Output Range Assignment.
  • Page 36 CHAPTER 2: INSTALLATION the front panel COMMUNICATE light will be solid if valid data and relay address are COMMUNICATE light flashes to indicate invalid data, being received. If the front panel try reversing the wires to terminals 15 and 16. Each relay must be daisy chained to the next one as shown in FIGURE 2–8: RS485 Communication Wiring on page 2–30.

  • Page 37: Dielectric Strength Testing

    CHAPTER 2: INSTALLATION GROUNDING • SAFETY GROUND (13): Connect the safety ground terminal 13 to a reliable system ground within the starter using #12 gauge wire or ground braid. For safety, all metal parts within the 239 are connected to this ground terminal. Shield terminals 20/48 and RTD COM terminals 51/54/57 are internally connected to the safety ground, terminal •...
  • Page 38 CHAPTER 2: INSTALLATION FIGURE 2–9: Dielectric Strength Testing 2–32 239 MOTOR PROTECTION RELAY – INSTRUCTION MANUAL Courtesy of NationalSwitchgear.com...

  • Page 39: Front Panel

    Digital Energy 239 Motor Protection Relay Motor Protection Relay CAUSE OF LAST TRIP: MECHANICAL JAM Chapter 3: Operation TRIP AUXILIARY PICKUP ALARM SERVICE COMMUNICATE ACTUAL MESSAGE SETPOINT STORE VALUE RESET Operation 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.

  • Page 40: Display

    CHAPTER 3: OPERATION Motor Protection Relay DISPLAY 40 character illuminated display for all light conditions. • Setpoints CAUSE OF LAST TRIP: • Actual values MECHANICAL JAM • Status messages • Fault conditions STATUS INDICATORS TRIP AUXILIARY PICKUP • Trip: Lit when the 239 detects a trip. •...

  • Page 41: Status Indicators

    CHAPTER 3: OPERATION To maximize the lifetime of the display, its brightness can be varied using the setpoint . The display will S1: 239 SETUP\PREFERENCES\DEFAULT MESSAGE BRIGHTNESS adjust to set brightness level when the default messages are being displayed. If any one of keys on the 239 keypad is pressed or an alarm/trip is present the display brightness will automatically become 100%.

  • Page 42: Keys

    CHAPTER 3: OPERATION drops below the full load threshold and the ground current is below the trip pickup setting. • COMMUNICATE: Status of the RS485 communication port is monitored with this indicator. If there is no serial data being received via the rear serial port terminals COMMUNICATE indicator will be off.
  • Page 43 CHAPTER 3: OPERATION • STORE: When programming setpoints, enter the new value using the VALUE  VALUE  keys, followed by the key. Setpoint programming must be STORE enabled for the key to store the edited value. An acknowledgment STORE message will flash if the new setpoint is successfully saved in non-volatile memory.
  • Page 44 CHAPTER 3: OPERATION SETPOINT SETPOINT ]] SETPOINTS ]] SETPOINTS ]] S1 239 SETUP ]] S2 SYSTEM SETUP MESSAGE  MOVES BACK MOVES FORWARD WITHIN SUBGROUP WITHIN SUBGROUP MESSAGE  MESSAGE  ] PREFERENCES TEMPERATURE DISPLAY IN: CELSIUS MOVES TO PREVIOUS DEFAULT MESSAGE TIME SUBGROUP MESSAGE...

  • Page 45: Setpoint Access

    CHAPTER 3: OPERATION pressed the next choice is displayed. When numeric values are displayed, each time is pressed, the value increases by the step increment, up to the maximum. VALUE  Hold the key down to rapidly change the value. •...

  • Page 46: Default Messages

    CHAPTER 3: OPERATION 3.1.6 Default Messages Up to 5 default messages can be selected to automatically scan sequentially when the 239 is left unattended. If no keys are pressed for the default message time set with S1:239 then the currently displayed SETUP\PREFERENCES\DEFAULT MESSAGE TIME, message will automatically be overwritten by the first default message.
  • Page 47 CHAPTER 3: OPERATION STORE STORE VALID DEFAULT RESET MESSAGE MOTOR LOAD = TO DELETE THIS DEFAULT MESSAGE 70% FULL LOAD MESSAGE PRESS STORE REMOVED DISPLAYED FOR 3 SECONDS WHEN DISPLAYED FOR 3 SECONDS ACTUAL VALUE OR SETPOINT TO STORE KEY AND RESET KEY ARE WHEN STORE KEY PRESSED BE REMOVED FROM THE DEFAULT PRESSED IN SEQENCE...
  • Page 48 CHAPTER 3: OPERATION 3–10 239 MOTOR PROTECTION RELAY – INSTRUCTION MANUAL Courtesy of NationalSwitchgear.com...

  • Page 49: Setpoint Entry Methods

    Digital Energy 239 Motor Protection Relay Motor Protection Relay CAUSE OF LAST TRIP: MECHANICAL JAM Chapter 4: Programming TRIP AUXILIARY PICKUP ALARM SERVICE COMMUNICATE AC UAL VALU Programming Programming 4.1.1 Setpoint Entry Methods Prior to operating the 239 relay, setpoints defining system characteristics and protection settings must be entered, via one of the following methods: Front panel, using the keys and display.
  • Page 50 CHAPTER 4: PROGRAMMING SETPOINT SETPOINT SETPOINT SETPOINT SETPOINT ]] SETPOINTS ]] SETPOINTS ]] SETPOINTS ]] SETPOINTS ]] SETPOINTS ]] S1 239 SETUP ]] S2 SYSTEM SETUP ]] S3 OUTPUT RELAYS ]] S4 PROTECTION ]] S5 TESTING MESSAGE  MESSAGE  MESSAGE ...

  • Page 51: S1: 239 Setup

    CHAPTER 4: PROGRAMMING S1: 239 Setup Settings to configure the 239 are entered here. This includes user preferences, RS485 communication port, loading of factory defaults, and user programmable messages. SETPOINT SETPOINT ]] SETPOINTS ]] SETPOINTS ]] S1 239 SETUP ]] S2 SYSTEM SETUP MESSAGE L MESSAGE M MESSAGE 4...

  • Page 52: Preferences

    CHAPTER 4: PROGRAMMING SEE PREVIOUS PAGE MESSAGE 4 Range: 40 Alphanumeric characters ] PROGRAMMABLE Phone: (905) 294-6222 ] MESSAGE GEindustrial.com/pm MESSAGE 3 MESSAGE L MESSAGE M MESSAGE 4 Range: NONE, RTD, AN, RTD-AN ] PRODUCT OPTIONS SELECT OPTIONS TO ENABLE: NONE SELECT MOD 1 TO Range: 0 to 999 MESSAGE 3...

  • Page 53: Analog Output

    CHAPTER 4: PROGRAMMING • DEFAULT MESSAGE BRIGHTNESS: The brightness of the displayed messages can be varied with this setpoint. The brightness set by this setpoint will be used when the default messages are being displayed. The brightness defaults back to 100% when: •trip is present •alarm is present •any one of the keys on the 239 keypad is pressed...

  • Page 54: Rs485 Serial Port

    CHAPTER 4: PROGRAMMING accordingly. The analog output can be connected to a remote meter, which is available and calibrated from 0 to 100% of motor capacity used. Select thermal capacity (0 mA = 0%, 1 mA = 100% i.e. motor tripped) for use with the 0-1 mA 0-1 MA range meter model TCS2 scaled in units of thermal capacity used and available from GE Multilin.

  • Page 55: Programmable Message

    CHAPTER 4: PROGRAMMING • CLEAR PRE-TRIP DATA: When is selected in this setpoint and the key is STORE pressed, all of the pre-trip data in will be cleared and A1: STATUS\LAST TRIP DATA the following flash message will be displayed for 3 seconds. PRE-TRIP DATA CLEARED If the pre-data is cleared while a trip is still present, all pre-data except for “CAUSE OF...

  • Page 56: Product Options

    CHAPTER 4: PROGRAMMING •A copy of this message is also displayed in Actual Values page A1 under PROGRAMMABLE MESSAGE 4.2.6 Product Options • SELECT OPTIONS TO ENABLE: The 239 factory options can be updated in the field. Enter the new desired options for the 239. •...
  • Page 57 CHAPTER 4: PROGRAMMING Located in ACTUAL VALUES page A3 under the sub-heading MODEL INFORMATION Step 5: Verify correct MODs were installed: MOD NUMBER(S): 0 Located in ACTUAL VALUES page A3 under the sub-heading MODEL INFORMATION Step 6: Proceed with 239 setup. 239 MOTOR PROTECTION RELAY –...

  • Page 58: S2: System Setup

    CHAPTER 4: PROGRAMMING S2: System Setup SETPOINT SETPOINT ]] SETPOINTS ]] SETPOINTS ]] S2 SYSTEM SETUP ]] S3 OUTPUT RELAYS MESSAGE  MESSAGE  MESSAGE  Range: 5 to 1500, OFF ] CT INPUTS PHASE CT PRIMARY: Step: 5 A OFF A Range: RESIDUAL, CORE BAL 50:0.025, GROUND SENSING:...

  • Page 59: Ct Inputs

    CHAPTER 4: PROGRAMMING 4.3.1 CT Inputs , the 239 shifts the PHASE CT PRIMARY > 50 A MOTOR FULL LOAD CURRENT Note settings by a factor of 10 to remove the extra decimal place (see FIGURE 4–3: Setpoints Page 2 – System Setup above). If changing the setting causes it to PHASE CT PRIMARY cross the 50 A value, the...
  • Page 60 CHAPTER 4: PROGRAMMING inhibit will operate during start and/or run depending upon the value programmed in the setpoint described below. During a USE OVERLOAD PICKUP INHIBIT ON running condition this value adjusts the pickup at which the overload curves begin timing.
  • Page 61 CHAPTER 4: PROGRAMMING LRT Cold = Locked Rotor Time Cold, is defined as the locked rotor time when the motor has been stopped for a time sufficient for the motor temperature to reach ambient. LRT Hot and LRT Cold are usually determined from the motor specifications. If this information is not known, enter a typical value of 85% for the HOT/COLD CURVE RATIO...

  • Page 62: S3: Output Relays

    CHAPTER 4: PROGRAMMING S3: Output Relays SETPOINT SETPOINT ]] SETPOINTS ]] SETPOINTS ]] S3 OUTPUT RELAYS ]] S4 PROTECTION MESSAGE  MESSAGE  MESSAGE  ] TRIP RELAY TRIP OPERATION: Range: NON-FAILSAFE, FAILSAFE NON-FAILSAFE MESSAGE  MESSAGE  MESSAGE  MESSAGE ...

  • Page 63: Trip Relay

    CHAPTER 4: PROGRAMMING 4.4.1 Trip Relay • TRIP OPERATION: Any trip condition will activate the trip relay. This relay can be programmed to be . After a trip, the relay trip state will NON-FAILSAFE FAILSAFE remain latched until reset by pressing the key, momentarily closing the RESET external reset switch input, or issuing a serial port reset command.
  • Page 64 CHAPTER 4: PROGRAMMING • AUXILIARY FUNCTION: If the auxiliary relay is required to be controlled by the function it’s assigned to then configure this setpoint to . If the auxiliary relay is NORMAL 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 depending on the requirement.

  • Page 65: S4: Protection

    CHAPTER 4: PROGRAMMING S4: Protection SETPOINT SETPOINT ]] SETPOINTS ]] SETPOINTS ]] S4 PROTECTION ]] S5 TESTING MESSAGE L MESSAGE M MESSAGE > ] PHASE CURRENT | OVERLOAD Range: 1 to 15; Step 1 OVERLOAD MESSAGE < CURVE NO: 4 Range: 1.01 to 20.00 AT 2.00 x FLC, TRIP Step 0.01 x FLC...
  • Page 66 CHAPTER 4: PROGRAMMING SEE PREVIOUS PAGE SEE PREVIOUS PAGE | MECHANICAL JAM Range: OFF, TRIP, ALARM, MECHANICAL JAM AUXILIARY, TRIP&AUX FUNCTION: OFF Range: 0.1 to 10.0 MECHANICAL JAM Step 0.1 x FLC PICKUP 2.0 x FLC Range: 0 to 250; Step: 1 s. MECHANICAL JAM MESSAGE ▲...
  • Page 67 CHAPTER 4: PROGRAMMING SEE PREVIOUS PAGE SEE PREVIOUS PAGE | BREAKER FAILURE Range: OFF, ALARM, AUXILIARY, BREAKER FAILURE ALARM & AUX FUNCTION: OFF Range: 0.1 to 11.0 BREAKER FAILURE Step 0.1 x CT PICKUP ≥ 5.0 x CT Range: 10 to 60000, INST BREAKER FAIL PICKUP Step: 10 ms DELAY: 100 ms...
  • Page 68 CHAPTER 4: PROGRAMMING SEE PREVIOUS PAGE SEE PREVIOUS PAGE | RTD 1 Range: STATOR, BEARING, OFF RTD 1 APPLICATION: STATOR Range: 100PT, 100NI, 120NI, 10CU RTD 1 TYPE: 100 PT Range: 0 to 200°C, OFF; step 1°C RTD 1 TRIP MESSAGE ...
  • Page 69 CHAPTER 4: PROGRAMMING SEE PREVIOUS PAGE SEE PREVIOUS PAGE MESSAGE 4 ] SWITCH INPUTS | OPTION SWITCH 1 OPTION SW. 1 NAME: Range: 20 alphanumeric characters MESSAGE 3 OPTION SWITCH 1 Range: OFF, TRIP, ALARM, SWITCH 1 FUNCTION: AUXILIARY, ALTERNATE SETPOINTS, DISABLE STARTS TIME DELAY: Range: 0 to 60.0 step 0.1 s...
  • Page 70 CHAPTER 4: PROGRAMMING SEE PREVIOUS PAGE SEE PREVIOUS PAGE | OPTION SWITCH 2 OPTION SW. 2 NAME: Range: 20 alphanumeric characters OPTION SWITCH 2 Range: OFF, TRIP, ALARM, AUXILIARY, SWITCH 2 FUNCTION: ALTERNATE SETPOINTS, DISABLE STARTS Range: 0 to 60.0 step 0.1 s TIME DELAY: 0.0 s Range: 5 to 1500 step 5 A...

  • Page 71: Overload

    CHAPTER 4: PROGRAMMING 4.5.1 Overload • OVERLOAD CURVE: One of 15 different time/overload curves can be selected with the Phase Overload Curve number setpoint to closely match the thermal characteristics of the motor. Over lay motor curve data, if available, on the time overcurrent curves of FIGURE 4–6: Phase Timed Overload Curves on page 4–34 and choose the curve that falls just below the motor damage curve.
  • Page 72 CHAPTER 4: PROGRAMMING • AUTO RESET O/L TRIPS: When enabled, this feature will automatically reset overload trips once the thermal capacity (TC) decreases to 15% or less. All other types of trips are not affected by this feature. 100000 10000 1000 TRIP TIME (seconds)

  • Page 73: Phase S/C

    CHAPTER 4: PROGRAMMING Table 4–2: 239 Phase Overload Trip Times (Seconds) CURVE MULTIPLE OF MOTOR FULL LOAD CURRENT NUMBER 1.03 1.05 14369 8537 4166.8 699.9 291.6 166.6 109.3 58.3 36.43 24.98 13.88 8.83 7.29 15806 9391 4583.5 769.9 320.7 183.3 120.3 64.1 40.08...

  • Page 74: Immediate Overload

    CHAPTER 4: PROGRAMMING • PHASE S/C DELAY: The trip can be instantaneous (no intentional delay) or can be delayed by up to 60000 ms to prevent nuisance tripping or allow co-ordination with associated system switchgear. The S4: PROTECTION\PHASE CURRENT\PHASE S/ setpoint represents the intentional delay added to the C\PHASE S\C DELAY detection and output relay activation delays of the 239.

  • Page 75: Undercurrent

    CHAPTER 4: PROGRAMMING • INHIBIT ON START FOR: If all other conditions are met for a mechanical jam feature to activate and the motor is starting, the function will operate when the delay set in this setpoint has elapsed. If this setpoint is set to , the mechanical jam UNLIMITED function will never operate during a start.

  • Page 76: Unbalance

    CHAPTER 4: PROGRAMMING 4.5.6 Unbalance • UNBALANCE TRIP: Unbalanced three phase supply voltages are a major cause of induction motor thermal damage. Unbalance can be caused by a variety of factors and is common in industrial environments. Causes can include increased resistance in one phase due to a pitted or faulty contactor, loose connections, unequal tap settings in a transformer or non-uniformly distributed three phase loads.

  • Page 77: Hot Motor

    CHAPTER 4: PROGRAMMING • UNBALANCE DELAY: If phase current unbalance increases above UNBALANCE setpoint value and remains this ALARM PICKUP UNBALANCE TRIP PICKUP way for the time delay programmed in this setpoint, the respective relay will activate and the respective warning message will be displayed. 4.5.7 Hot Motor •...
  • Page 78 CHAPTER 4: PROGRAMMING On the occurrence of a ground fault caused by insulation breakdown, a motor will usually have to be taken out of service and rewound. However an unprotected motor could suffer mechanical damage to the stator slots making repair impossible. The fault could also cause the power supply bus to which the faulty motor is connected to trip in order to clear the fault resulting in unnecessary process shutdowns.
  • Page 79 CHAPTER 4: PROGRAMMING below the maximum current limited by the ground resistor or else the relay will not see a large enough ground fault current to cause a trip. • GROUND TRIP DELAY ON RUN: This delay is used when the motor is in a RUNNING condition.

  • Page 80: 4.5.10 Temperature

    CHAPTER 4: PROGRAMMING programmed in this setpoint while the motor is starting, the alarm relay will activate and the “GROUND ALARM” message will be displayed. NOTE: When the phase current increases from 0, this delay is used until the 239 determines whether the motor is RUNNING or STARTING.
  • Page 81 CHAPTER 4: PROGRAMMING • THERMISTOR HOT RESISTANCE: Consult manufacturer’s data for the thermistor(s) installed in the motor and enter the hot resistance value here. If three PTC thermistors are connected in series, enter the hot resistance of 1 thermistor. • THERMISTOR COLD RESISTANCE: Consult manufacturer’s data for the thermistor(s) installed in the motor and enter the cold resistance value here.
  • Page 82 CHAPTER 4: PROGRAMMING to use this option. When ordering a motor with RTDs, the 100 Ω platinum DIN 43730 type is the preferred choice for optimum sensitivity and linearity. Other RTDs that can be selected are 100 Ω nickel, 120 Ω nickel and 10 Ω copper. •...
  • Page 83 CHAPTER 4: PROGRAMMING Table 4–3: RTD Resistance VS. Temperature 100 Ω 100 Ω 120 Ω NICKEL 10 Ω TEMPERATURE PLATINUM NICKEL COPPER °C °F 84.27 Ω 79.13 Ω 92.76 Ω 7.490 Ω 88.22 Ω 84.15 Ω 99.41 Ω 7.876 Ω 92.16 Ω...

  • Page 84: Switch Inputs

    CHAPTER 4: PROGRAMMING Switch Inputs 4.6.1 Option Switch 1-2 • OPTION SWITCH 1-2 NAME: A 20 character name can be assigned to the option switch inputs. See Section 4.24.2.5 Programmable Message on page 4–17 to learn how to enter the switch names. This name will appear in the following messages. •...

  • Page 85: Multi-Speed Motor

    CHAPTER 4: PROGRAMMING Multi-speed Motor The 239 has a multi-speed motor feature. This feature is intended to provide proper protection for a two, three, or four-speed motor where there will be different full motor characteristics (based upon speed settings). The algorithm integrates the heating at each speed into one thermal model using a common, thermal capacity used register for all speeds.
  • Page 86 CHAPTER 4: PROGRAMMING Located in ACTUAL VALUES pages A1 under the sub-heading SWITCH STATUS 4–48 239 MOTOR PROTECTION RELAY – INSTRUCTION MANUAL Courtesy of NationalSwitchgear.com...
  • Page 87 CHAPTER 4: PROGRAMMING FIGURE 4–7: Two Speed Motor Wiring Diagram 239 MOTOR PROTECTION RELAY – INSTRUCTION MANUAL 4–49 Courtesy of NationalSwitchgear.com...

  • Page 88: S5: Testing

    CHAPTER 4: PROGRAMMING S5: Testing SETPOINT SETPOINT ]] SETPOINTS ]] SETPOINTS ]] S5 TESTING ]] S1 239 SETUP MESSAGE ▲ MESSAGE ▼ MESSAGE 4 Range: NO, YES ] TEST CONFIGURATION DISABLE START PROTECTION: NO Range: 5 to 300, UNLIMITED PROTECTION DISABLED MESSAGE 3 Step: 5 min.
  • Page 89 CHAPTER 4: PROGRAMMING SEE PREVIOUS PAGE MESSAGE  Range: OFF, ON ] SWITCH INPUTS SIMULATION: OFF ] SIMULATION Range: 5 to 300, UNLIMITED SIMULATION ENABLED MESSAGE  Step: 5 min. FOR: 15 min Range: OPEN, CLOSED EMERGENCY RESTART INPUT: OPEN Range: OPEN, CLOSED EXTERNAL RESET MESSAGE ...

  • Page 90: Test Configuration

    CHAPTER 4: PROGRAMMING 4.8.1 Test Configuration • DISABLE START PROTECTION: To verify correct operation of overload curves it may be necessary to disable the start protection. When this feature is turned on and current is injected above the full load setting, the overload curves will be used to build up the thermal capacity instead of the LOCKED ROTOR CURRENT SAFE STALL...

  • Page 91: Current Simulation

    CHAPTER 4: PROGRAMMING Testing is only allowed if there is no phase and ground current present and current simulation is turned off. If the test is attempted while current is present, the setpoint will be forced to NORMAL MODE and the following flash message will be displayed for 3 seconds. RELAY TEST BLOCKED CURRENT PRESENT , the setpoint will be...

  • Page 92: Analog Output Simulation

    CHAPTER 4: PROGRAMMING When current simulation is turned on the following flash message will be displayed for 3 seconds. SIMULATION HAS BEEN ENABLED When current simulation is turned off the following flash message will be displayed for 3 seconds. CURRENT SIMULATION HAS BEEN DISABLED •...

  • Page 93: Switch Inputs Simulation

    CHAPTER 4: PROGRAMMING When analog output simulation is turned on the following flash message will be displayed for 3 seconds. SIMULATION HAS BEEN ENABLED When analog output simulation is turned off the following flash message will be displayed for 3 seconds. ANALOG OUT SIMULATION HAS BEEN DISABLED •...

  • Page 94: Thermistor Simulation

    CHAPTER 4: PROGRAMMING When switch inputs simulation is turned off the following flash message will be displayed for 3 seconds. SIMULATION HAS BEEN DISABLED • EMERGENCY RESTART INPUT: Enter the status of this switch input as OPEN . The functionality of this input remains as is with actual input connected. CLOSED •...

  • Page 95: Rtd Simulation

    CHAPTER 4: PROGRAMMING turned off via the setpoint or via the serial port or until control SIMULATION ON/OFF power is removed from the 239. 4.8.7 RTD Simulation • SIMULATION: Enter ON to switch from actual input to the programmed simulation temperature value of each RTD input value.
  • Page 96 CHAPTER 4: PROGRAMMING 4–58 239 MOTOR PROTECTION RELAY – INSTRUCTION MANUAL Courtesy of NationalSwitchgear.com...

  • Page 97: Actual Values Viewing

    Digital Energy 239 Motor Protection Relay Motor Protection Relay CAUSE OF LAST TRIP: MECHANICAL JAM Chapter 5: Monitoring TRIP AUXILIARY PICKUP ALARM SERVICE COMMUNICATE AC UAL VALU Monitoring Monitoring 5.1.1 Actual Values Viewing Any measured value can be displayed on demand using the key.
  • Page 98 CHAPTER 5: MONITORING ACTUAL ACTUAL ACTUAL ]] ACTUAL VALUES ]] ACTUAL VALUES ]] ACTUAL VALUES ]] A1 STATUS ]] A2 METERING ]] A3 PRODUCT INFO MESSAGE  MESSAGE  MESSAGE  ] GENERAL ] CURRENT ] FIRWARE VERSIONS ] LAST TRIP DATA ] MOTOR CAPACITY ] MODEL INFORMATION ] MOTOR STATISTICS...

  • Page 99: A1: Status

    CHAPTER 5: MONITORING A1: Status ACTUAL ACTUAL ]] ACTUAL VALUES ]] ACTUAL VALUES ]] A1 STATUS ]] A2 METERING MESSAGE MESSAGE s MESSAGE t MESSAGE MESSAGE 4 Range: TRIP, ALARM, TRIP AND ALARM, NORMAL, ] GENERAL SYSTEM STATUS SIMULATION NORMAL Range: STOPPED, STARTING, RUNNING MOTOR STATUS MESSAGE 3...

  • Page 100: General

    CHAPTER 5: MONITORING SEE PREVIOUS PAGE MESSAGE 4 ] PROGRAMMABLE ] Phone: 905-294-6222 ] MESSAGE ] GEindustrial.com/pm MESSAGE 3 ] END OF PAGE A1 FIGURE 5–2: Actual Values Page 1 – Status 5.2.1 General • SYSTEM STATUS: This message gives an indication if operation is normal or whether a trip and/or alarm has occurred.

  • Page 101: Motor Statistics

    CHAPTER 5: MONITORING • A: B: C: CURRENT: Actual current flowing in each of the three phases at the moment of trip is displayed. By comparing these values to the motor full load current after an overload trip, it should be easy to determine in which phase the fault has occurred. A high current in one phase and ground indicates a phase to ground fault.

  • Page 102: Programmable Message

    CHAPTER 5: MONITORING NOTE: If the switch simulation is turned on in , the status shown in these S5:TESTING\SWITCH SIMULATION\SIMULATION messages will be of the simulated inputs. • SETPOINTS GROUP CURRENTLY IN USE: Alternate setpoints (i.e. PHASE CT , etc.) can be selected using the Option Switch 1 PRIMARY FULL LOAD CURRENT and Option Switch 2 inputs as explained in Section 4.6: Switch Inputs on page –46.

  • Page 103: A2: Metering

    CHAPTER 5: MONITORING A2: Metering ACTUAL ACTUAL ]] ACTUAL VALUES ]] ACTUAL VALUES ]] A2 METERING ]] A3 PRODUCT INFO MESSAGE ▲ MESSAGE ▼ MESSAGE 4 Range: 0 to 10000 (if CT SET PRI > 50 A) ] CURRENT 0 B= 0 to 1000 (if CT SET PRI ≤...

  • Page 104: Current

    CHAPTER 5: MONITORING 5.3.1 Current • A: B: C: CURRENT: Current in each phase corresponding to the A, B and C phase inputs is displayed. Current will only be measured correctly if is entered to CT PRIMARY match the installed CT primary and the CT secondary is wired to match the 1 or 5 A input.

  • Page 105: Temperature

    CHAPTER 5: MONITORING 5.3.3 Temperature • STATOR (BEARING) RTD1 (2-3) TEMPERATURE (OPTION): When enabled by , the actual temperature measured TEMPERATURE\RTD1-3\RTD1-3 APPLICATION by each RTD will be displayed. For RTDs installed in the stator, interpretation of the temperature is more meaningful if the insulation class of the stator windings is known. This value indicates how close the stator is operating to its maximum allowable temperature.

  • Page 106: A3: Product Info

    CHAPTER 5: MONITORING A3: Product Info ACTUAL ACTUAL ]] ACTUAL VALUES ]] ACTUAL VALUES ]] A3 PRODUCT INFO ]] A1 STATUS MESSAGE  MESSAGE  MESSAGE  ] FIRMWARE REVISIONS MAIN PROGRAM VER: Nov 24, 1999 BOOT PROGRAM VER: MESSAGE  2.00 Mar 27, 1997 SUPERVISOR PROG VER:...

  • Page 107: Identification

    CHAPTER 5: MONITORING manual states the main program revision code for which the manual is written. There may be differences in the product and manual if the revision codes do not match. • BOOT PROGRAM VERSION: This identifies the firmware installed internally in the PROM memory of the 239.
  • Page 108 CHAPTER 5: MONITORING 5–70 239 MOTOR PROTECTION RELAY – INSTRUCTION MANUAL Courtesy of NationalSwitchgear.com...

  • Page 109: Hardware And Software Requirements

    Digital Energy 239 Motor Protection Relay Motor Protection Relay CAUSE OF LAST TRIP: MECHANICAL JAM Chapter 6: User Interface TRIP AUXILIARY PICKUP ALARM SERVICE COMMUNICATE AC UAL VALU User Interface EnerVista 239 Setup Interface 6.1.1 Hardware and Software Requirements The following minimum requirements must be met for the EnerVista 239 Setup software to operate on your computer.
  • Page 110 CHAPTER 6: User Interface  Click the IED Setup section of the Launch Pad window.  In the enerVista LaunchPad window, click the Add Product button and select the “239 Motor Protection Relay” as shown below. Select the “Web” option to ensure the most recent software release, or select “CD”...
  • Page 111 CHAPTER 6: User Interface  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. 239 MOTOR PROTECTION RELAY – INSTRUCTION MANUAL 6–73 Courtesy of NationalSwitchgear.com...

  • Page 112: Connecting Enervista 239 Setup To The Relay

    CHAPTER 6: User Interface Connecting EnerVista 239 Setup to the Relay 6.2.1 Configuring Serial Communications Before starting, verify that the serial cable is properly connected to either the RS232 port on the front panel of the device (for RS232 communications) or to the RS485 terminals on the back of the device (for RS485 communications).

  • Page 113: Configuring Ethernet Communications

    CHAPTER 6: User Interface  Enter the slave address and COM port values (from the S1 239 SETUP menu) in the Slave Address and COM 239 COMMUNICATIONS  Port fields.  Enter the physical communications parameters (baud rate and parity settings) in their respective fields. ...
  • Page 114 CHAPTER 6: User Interface  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 with the display order of devices defined for the site. In this example, we will use “Substation 2”...

  • Page 115: Connecting To The Relay

    CHAPTER 6: User Interface The 239 Site Device has now been configured for Ethernet communications. Proceed to the following section to begin communications. 6.2.3 Connecting to the Relay Now that the communications parameters have been properly configured, the user can easily connect to the relay.
  • Page 116 CHAPTER 6: User Interface The Front Panel settings can now be edited, printed, or changed 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.

  • Page 117: Working With Setpoints And Setpoint Files

    CHAPTER 6: User Interface Working with Setpoints and Setpoint Files 6.3.1 Engaging a Device The EnerVista 239 Setup software may be used in on-line mode (relay connected) to directly communicate with a 239 relay. Communicating relays are organized and grouped by communication interfaces and into sites.
  • Page 118 CHAPTER 6: User Interface  Clicking the arrow at the end of the box displays a numerical keypad interface that allows the user to enter a value within the setpoint range displayed near the top of the keypad:  Click Accept to exit from the keypad and keep the new value. ...

  • Page 119: File Support

    CHAPTER 6: User Interface 6.3.3 File Support Opening any EnerVista 239 Setup file will automatically launch the application or provide focus to the already opened application. If the file is a settings file (has a ‘239’ extension) which had been removed from the Settings List tree menu, it will be added back to the Settings List tree.
  • Page 120 CHAPTER 6: User Interface  Select the desired device from the site list.  Select the File > Read Settings from Device menu item to obtain settings information from the device. After a few seconds of data retrieval, the software will request the name and destination path of the setpoint file.
  • Page 121 CHAPTER 6: User Interface Creating a New Settings File The EnerVista 239 Setup software allows the user to create new Settings files independent of a connected device. These can be uploaded to a relay at a later date. The following manual procedure illustrates how to create new Settings Files.
  • Page 122 CHAPTER 6: User Interface Upgrading Setpoint Files to a New Revision It is often necessary to upgrade the revision code for a previously saved setpoint file after the 239 firmware has been upgraded (for example, this is required for firmware upgrades). This is illustrated in the following procedure.
  • Page 123 CHAPTER 6: User Interface  Select a previously saved setpoints file in the File pane or establish communications with a 239 device.  From the main window, select the File > Print Settings menu item. The Print/Export Options dialog box will appear. ...
  • Page 124 CHAPTER 6: User Interface Loading Setpoints from a File An error message will occur when attempting to download a setpoint file with a Note revision number that does not match the relay firmware. If the firmware has been upgraded since saving the setpoint file, see Upgrading Setpoint Files to a New Revision on page 6–82 for instructions on changing the revision number of a setpoint file.

  • Page 125: Upgrading Relay Firmware

    CHAPTER 6: User Interface Upgrading Relay Firmware 6.4.1 Description To upgrade the 239 firmware, follow the procedures listed in this section. Upon successful completion of this procedure, the 239 will have new firmware installed with the original setpoints. The latest firmware files are available from the GE Multilin website at http:// www.GEindustrial.com/multilin.

  • Page 126: Upgrading And Loading Settings Files

    CHAPTER 6: User Interface  Locate the firmware file to load into the 239. The firmware filename has the following format: 64 D 250 C4 000 Modification number (000 = none) For GE Power Management use only Product firmware revision (e.g. 2.50). On the 239, this number is found in Actual Values page A3 under FIRMWARE VERSION/MAIN PROGRAM VER Required product hardware revision.
  • Page 127 CHAPTER 6: User Interface  Convert your settings file(s) to the new firmware version. To view 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. ...

  • Page 128: Advanced Enervista 239 Setup Features

    CHAPTER 6: User Interface Advanced EnerVista 239 Setup Features 6.5.1 Trending Trending from the 239 is accomplished via EnerVista 239 Setup. Many different parameters can be trended and graphed at sampling periods from 1 second up to 1 hour. The parameters which can be trended by EnerVista 239 Setup are: •...
  • Page 129 CHAPTER 6: User Interface  Program the parameters to display by selecting them from the pull down menus.  Select the Sample Rate.  Select RUN to begin the trending sampling. The trended values can be printed using Print Trending Graph button.

  • Page 130: Modbus User Map

    CHAPTER 6: User Interface 6.5.2 Modbus User Map The EnerVista 239 Setup software provides a means to program the 239 User Map (Modbus addresses 0180h to 01F7h). Refer to User Definable Memory Map Area in the 239 Communications Guide for additional information on the User Map. ...
  • Page 131 CHAPTER 6: User Interface  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): 239 MOTOR PROTECTION RELAY –...

  • Page 132: Using Enervista Viewpoint With The 239

    CHAPTER 6: User Interface Using EnerVista Viewpoint with the 239 6.6.1 Plug and Play Example EnerVista Viewpoint is an optional software package that puts critical 239 information onto any PC with plug-and-play simplicity. EnerVista Viewpoint connects instantly to the 239 via serial, ethernet or modem and automatically generates detailed overview, metering, power, demand, energy and analysis screens.
  • Page 133 CHAPTER 6: User Interface  Click the OK button when complete. The new site will appear in the upper-left list in the EnerVista 239 Setup window.  Click the Add Device button to define the new device.  Enter the desired name in the Device Name field and a description (optional) of the site.
  • Page 134 CHAPTER 6: User Interface FIGURE 6–5: ‘Plug and Play’ Dashboard  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.

  • Page 135: Testing

    Digital Energy 239 Motor Protection Relay Motor Protection Relay CAUSE OF LAST TRIP: MECHANICAL JAM Chapter 7: Testing TRIP AUXILIARY PICKUP ALARM SERVICE COMMUNICATE AC UAL VALU Testing 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.

  • Page 136: Secondary Injection Testing

    CHAPTER 7: TESTING Secondary Injection Testing Setup the secondary 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.

  • Page 137: Phase Current Accuracy

    CHAPTER 7: TESTING Phase Current Accuracy Any phase current protection is based on the ability of the 239 to read phase input currents accurately to ±2% of full scale. Perform the steps below to test the phase current accuracy. Alter the following setpoint. S2: SYSTEM SETUP\CT INPUTS\PHASE CT PRIMARY: 100A To determine if the relay is reading the proper input current values, inject phase currents shown in the table below, view the readings in...

  • Page 138: Phase Current Overload

    CHAPTER 7: TESTING Phase Current Overload Alter the following setpoints: S4: PROTECTION\PHASE CURRENT\OVERLOAD\OVERLOAD CURVE NUM- BER: 4 S2: SYSTEM SETUP\CT INPUTS\PHASE CT PRIMARY: 100A S2: SYSTEM SETUP\MOTOR DATA\MOTOR FULL LOAD CURRENT: 50A S5: TESTING\TEST CONFIGURATION\DISABLE START PROTECTION: YES Before beginning this test it is necessary to ensure that the thermal capacity value in is 0% to obtain a proper trip time.

  • Page 139: Phase Unbalance Alarm

    CHAPTER 7: TESTING Phase Unbalance Alarm Alter the following setpoints: PROTECTION\PHASE CURRENT\UNBALANCE\PHASE UNBALANCE ALARM: S4: PROTECTION\PHASE CURRENT\UNBALANCE\PHASE UNBALANCE TRIP: S4: PROTECTION\PHASE CURRENT\UNBALANCE\PHASE UNBALANCE ALARM PICKUP: S4: PROTECTION\PHASE CURRENT\UNBALANCE\PHASE UNBALANCE DELAY: 0 SEC Inject three-phase current at the FLA level into all three phases. While viewing , slowly decrease the current METERING\CURRENT\CURRENT UNBALANCE U/B in one of the phases until the UNBALANCE ALARM message comes on.
  • Page 140 CHAPTER 7: TESTING EXAMPLE: CALCULATING THE PERCENT OF UNBALANCE Find the percent unbalance given the following information: PRIMARY SECONDARY (5A) = 73 A 3.65 A = 100 A = 100 A The average of the three phase currents is: ------------------------------------- - A -------- - A 91 A ------------------------...

  • Page 141: Ground Current Accuracy

    CHAPTER 7: TESTING Ground Current Accuracy Alter the following setpoints: S2: SYSTEM SETUP\CT INPUTS\GROUND SENSING: S2: SYSTEM SETUP\CT INPUTS\GROUND CT PRIMARY: S4: PROTECTION\GROUND CURRENT\GROUND TRIP: S4: PROTECTION\GROUND CURRENT\GROUND ALARM: To determine if the relay is reading the proper ground current, inject various ground currents shown in the table below into the 5A ground input and view the readings in and verify with the expected A2: METERING\CURRENT\GROUND CURRENT...

  • Page 142: Ground Alarm And Trip

    CHAPTER 7: TESTING 7.6.2 Ground Alarm And Trip Alter the following setpoints: RESIDUAL S2: SYSTEM SETUP\CT INPUTS\GROUND SENSING: S2: SYSTEM SETUP\CT INPUTS\PHASE CT PRIMARY: TRIP S4: PROTECTION\GROUND CURRENT\GROUND TRIP: S4: PROTECTION\GROUND CURRENT\GROUND PRIMARY TRIP PICKUP: MOMENTARY S4: PROTECTION\GROUND CURRENT\GROUND ALARM: PROTECTION\GROUND CURRENT\GROUND PRIMARY...

  • Page 143: Switch Input

    CHAPTER 7: TESTING Switch Input To verify the operation of each 239 switch input, go to A1: STATUS\SWITCH STATUS and with the keys, view the status of each switch input MESSAGE  MESSAGE  one at a time. Open and close each switch input and note that the display reflects the present status of the input terminals.

  • Page 144: Analog Output

    CHAPTER 7: TESTING Analog Output Alter the following setpoints: 4-20 MA S1: 239 SETUP\ANALOG OUTPUT\ANALOG OUTPUT RANGE: S5: TESTING\ANALOG OUTPUT SIMULATION\SIMULATION: As shown in FIGURE 7–1: SECONDARY INJECTION TEST SETUP on page 7–98, connect a DC ammeter between terminals 18 and 19. Using the setpoint S5: TESTING\ANALOG OUTPUT SIMULATION\ANALOG force the output to various levels shown in the table below...

  • Page 145: Thermistor Alarm

    CHAPTER 7: TESTING Thermistor Alarm Alter the following setpoints: S4: PROTECTION\TEMPERATURE\THERMISTOR\THERMISTOR FUNCTION: ALARM S4: PROTECTION\TEMPERATURE\THERMISTOR\THERMISTOR HOT RESISTANCE: 20KW S4: PROTECTION\TEMPERATURE\THERMISTOR\THERMISTOR COLD RESISTANCE: 0.1KW As shown in FIGURE 7–1: SECONDARY INJECTION TEST SETUP on page 7–98, place a variable 30 kΩ resistor across thermistor terminals 21/22. With the variable resistor initially set to zero start increasing the resistance until a thermistor alarm occurs.

  • Page 146: 7.10 Rtd Measurement

    CHAPTER 7: TESTING 7.10 RTD Measurement Alter the following setpoints: S4: PROTECTION\TEMPERATURE\RTD 1\RTD 1 TYPE: 100PT S4: PROTECTION\TEMPERATURE\RTD 1\RTD 1 APPLICATION: BEARING S4: PROTECTION\TEMPERATURE\RTD 1\RTD 1 TRIP TEMPERATURE: OFF S4: PROTECTION\TEMPERATURE\RTD 1\RTD 1 ALARM TEMPERATURE: 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.

  • Page 147: 7.11 Power Failure / Non-Volatile Memory

    CHAPTER 7: TESTING 7.11 Power Failure / Non-volatile Memory Slowly decrease the AC voltage applied to a 239 relay until the UNDERVOLTAGE message appears on the 239 display. At this instant all output relays will go to their de-energized state and the SERVICE LED turns on. This phenomenon should occur after the voltage has decreased below 70 V.

  • Page 148: Routine Maintenance Verification

    CHAPTER 7: TESTING 7.12 Routine Maintenance Verification Once a relay has been properly installed, periodic tests can be performed to check correct operation of the protection system. Many conditions can be simulated without creating the actual trip/alarm conditions themselves. This is done by changing relay setpoints to values which will initiate trips and alarms during normal motor operation.
  • Page 149 CHAPTER 7: TESTING FIGURE 7–2: 239 Hardware Block Diagram 239 MOTOR PROTECTION RELAY – INSTRUCTION MANUAL 7–111 Courtesy of NationalSwitchgear.com...
  • Page 150 CHAPTER 7: TESTING 7–112 239 MOTOR PROTECTION RELAY – INSTRUCTION MANUAL Courtesy of NationalSwitchgear.com...

  • Page 151: Warranty

    Digital Energy 239 Motor Protection Relay Motor Protection Relay CAUSE OF LAST TRIP: MECHANICAL JAM Appendix A TRIP AUXILIARY PICKUP ALARM SERVICE COMMUNICATE AC UAL VALU 239 Warranty GE MULTILIN RELAY WARRANTY General Electric Multilin (GE Multilin) warrants each relay it manufactures to be free from defects in material and workmanship under normal use and service for a period of 24 months from date of shipment from factory.
  • Page 152 CHAPTER A: A–2 239 MOTOR PROTECTION RELAY – INSTRUCTION MANUAL Courtesy of NationalSwitchgear.com...
  • Page 153 INDEX Index Index Numerics pc interface ..................... 6-71 A1 STATUS ......................5-61 A2 METERING ....................5-65 A3 PRODUCT INFO ................... 5-68 ACTUAL VALUES A1 STATUS ......................5-61 A2 METERING ....................5-65 A3 PRODUCT INFO .................... 5-69 current ......................5-66 general ......................
  • Page 154 INDEX BAUD RATE ....................... 4-16 BLOCK DIAGRAM ................... 7-111 BLOCK KEYPAD TRIP RESETS ................4-15 BREAKER FAILURE ................... 4-39 BRIGHTNESS ....................4-15 CALIBRATION DATE ..................5-69 CAUSE OF LAST TRIP ..................5-62 CLEAR PRE-TRIP DATA ..................4-17 CLEAR STATISTICS DATA .................
  • Page 155 INDEX EXTERNAL CONNECTIONS ................2-18 FACTORY DEFAULTS loading ......................4-16 FAILSAFE ......................4-24 FEATURES ......................1-1 FIRMWARE upgrading via EnerVista 369 setup software ..........6-87 FIRMWARE REVISIONS ..................2-17 FREQUENCY ...................... 4-21 FRONT HIGHLIGHTS ..................1-4 FRONT PANEL ..................... 3-1, 3-2 FULL LOAD CURRENT ..................
  • Page 156 INDEX LOAD FACTORY DEFAULTS ................4-16 LOCKED ROTOR CURRENT ................4-22 LOCKOUT TIME ....................4-33 MANUAL REVISIONS ..................2-17 MANUFACTURE DATE ..................5-69 MECHANICAL JAM ................... 4-36 MESSAGE KEY OPERATION ................3-6 MODEL INFORMATION ..................5-69 MODIFICATION FILE NUMBER ................ 5-69 MOTOR CAPACITY ....................
  • Page 157 INDEX PASSCODES obtaining from GE .................... 4-18 PHASE CT INPUTS .................... 2-21 PHASE CT PRIMARY ..................4-21 PHASE CURRENT accuracy test ....................7-99 overload test ....................7-100 testing ......................7-99 PHASE OVERLOAD TRIP TIMES ............... 4-34 PHASE S/C ......................4-35 PHASE S/C DELAY ....................
  • Page 158 INDEX S1 239 SETUP ....................4-13 S2 SYSTEM SETUP .................... 4-20 S3 OUTPUT RELAYS ..................4-24 S4 PROTECTION ....................4-27 S5 TESTING ....................... 4-50 SAFE STALL TIME ..................... 4-22 SECONDARY INJECTION TESTING ..............7-98 SELECT MOD TO ENABLE ................4-18 SELECT OPTIONS TO ENABLE .................
  • Page 159 INDEX loading setpoints ..................... 6-86 saving setpoints ....................6-87 serial communications ................6-74, 6-75 SOFTWARE VERSION ..................5-68 SPECIFICATIONS ....................1-8 START DETECTION ................... 5-62 STATUS INDICATORS ..................3-3 SWITCH INPUT CIRCUIT .................. 2-26 SWITCH INPUTS ..................2-26, 4-46 testing ......................
  • Page 160 INDEX TRIP RELAY ....................... 4-25 TWO SPEED MOTOR WIRING DIAGRAM ............4-49 TYPICAL APPLICATIONS ..................1-6 TYPICAL CT RATINGS ..................2-21 TYPICAL WIRING DIAGRAM ................2-20 UNBALANCE ..................... 4-38 actual values ....................5-63 calculating .................... 4-38, 7-102 formula ......................5-66 testing ......................

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