g GE Industrial Systems 489 GENERATOR MANAGEMENT RELAY® Instruction Manual 489 Firmware Revision: 32I151A8.000 489PC Software Revision: 1.5X Manual P/N: 1601-0071-EA (GEK-106290B) Copyright © 2006GE Multilin SELECT CURVE STYLE: Voltage Dependent 489 STATUS GENERATOR STATUS OUTPUT RELAYS 489 IN SERVICE BREAKER OPEN R1 TRIP SETPOINT ACCESS BREAKER CLOSED R2 AUXILIARY COMPUTER RS232 HOT STATOR R3 AUXILIARY COMPUTER RS485 NEG.
TABLE OF CONTENTS 1. INTRODUCTION 1.1 OVERVIEW 1.1.1 1.1.2 1.1.3 Description ......................................................................................................... 1-1 Ordering ............................................................................................................. 1-3 Other Accessories.............................................................................................. 1-3 1.2 SPECIFICATIONS 1.2.1 2. INSTALLATION 489 Specifications ....................
TABLE OF CONTENTS 4.2.6 4.2.7 Message Scratchpad ........................................................................................4-10 Clear Data.........................................................................................................4-11 4.3 S2 SYSTEM SETUP 4.3.1 4.3.2 4.3.3 4.3.4 Current Sensing................................................................................................4-12 Voltage Sensing........................................................................
TABLE OF CONTENTS 4.11 S10 MONITORING 4.11.1 4.11.2 4.11.3 4.11.4 4.11.5 4.11.6 4.11.7 Trip Counter ..................................................................................................... 4-69 Breaker Failure................................................................................................. 4-69 Trip Coil Monitor............................................................................................... 4-70 VT Fuse Failure.....................................................
TABLE OF CONTENTS 6.1.2 6.1.3 6.1.4 6.1.5 6.1.6 Modbus RTU Description....................................................................................6-1 Data Frame Format and Data Rate ....................................................................6-1 Data Packet Format ............................................................................................6-1 CRC-16 Algorithm...............................................................................................6-2 Timing ............
TABLE OF CONTENTS A. APPLICATION NOTES A.1 STATOR GROUND FAULT A.1.1 A.1.2 A.1.3 A.1.4 A.1.5 A.1.6 Description .........................................................................................................A-1 Neutral Overvoltage Element .............................................................................A-1 Ground Overcurrent Element .............................................................................A-2 Ground Directional Element .............................................
TABLE OF CONTENTS 6 489 Generator Management Relay GE Multilin
1 INTRODUCTION 1.1 OVERVIEW 1 INTRODUCTION 1.1OVERVIEW 1.1.1 DESCRIPTION The 489 Generator Management Relay is a microprocessor-based relay designed for the protection and management of synchronous and induction generators. The 489 is equipped with 6 output relays for trips and alarms. Generator protection, fault diagnostics, power metering, and RTU functions are integrated into one economical drawout package.
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1 INTRODUCTION 1.1 OVERVIEW 1.1.2 ORDERING All features of the 489 are standard, there are no options. The phase CT secondaries must be specified at the time of order. The control power and analog output range must also be specified at the time of order. There are two ground CT inputs: one for the GE Multilin HGF core balance CT and one for a ground CT with a 1 A secondary (may also be used to accommodate 5 A secondary). The VT inputs accommodate VTs in either a delta or wye configuration.
1.2 SPECIFICATIONS 1 INTRODUCTION 1.2SPECIFICATIONS 1 1.2.1 489 SPECIFICATIONS PHASE VOLTAGE INPUTS POWER SUPPLY Options: LO / HI (must be specified when ordering) VT Ratio: 1.00 to 240.00:1 in steps of 0.01 VT Secondary: 200 V AC (full-scale) DC: 20 to 60 V DC AC: 20 to 48 V AC at 48 to 62 Hz Conversion Range: 0.02 to 1.00 × Full Scale HI Range: DC: 90 to 300 V DC AC: 70 to 265 V AC at 48 to 62 Hz Accuracy: ±0.5% of Full Scale Max.
1 INTRODUCTION 1.2 SPECIFICATIONS RS485 Baud Rates: 300, 1200, 2400, 4800, 9600, 19200 RS232 Baud Rate: 9600 Parity: None, Odd, Even ® Modbus RTU / half duplex, DNP 3.0 Protocol: ANALOG CURRENT OUTPUT VOLTAGE AC 120 V INDUCTIVE 250 V PF = 0.4 MAKE/CARRY BREAK MAX. LOAD 30 A 4A 480 VA 30 A 3A 750 VA CTS 0.
1.2 SPECIFICATIONS 1 1 INTRODUCTION Timing Accuracy: ±0.5 s or ±0.5% of total time PHASE DIFFERENTIAL Elements: Trip and Alarm Pick-up Level: OVERCURRENT ALARM 0.05 to 1.00 × CT in steps of 0.01 Curve Shape: Dual Slope Pick-up Level: 0.10 to 1.50 × FLA in steps of 0.01 average phase current Time Delay: 0 to 100 cycles in steps of 1 Pickup Accuracy: as per Phase Current Inputs Time Delay: 0.1 to 250.0 s in steps of 0.1 Timing Accuracy: +50 ms at 50/60 Hz or ±0.
1 INTRODUCTION Elements: 1.2 SPECIFICATIONS LOW FORWARD POWER Trip and Alarm OVERFREQUENCY Required Voltage: 0.50 to 0.99 × rated voltage in Phase A Block From Online: 0 to 15000 s in steps of 1 Pick- up Level: 0.02 to 0.99 × rated MW Block From Online: 0 to 5 sec. in steps of 1 Time Delay: 0.2 to 120.0 s in steps of 0.1 Pick- up Level: 25.01 to 70.00 in steps of 0.
1.2 SPECIFICATIONS 1 1 INTRODUCTION At temperatures lower than –20°C, the LCD contrast may be impaired. Model#: NOTE LONG-TERM STORAGE Environment: WARNING WARNING In addition to the above environmental considerations, the relay should be stored in an environment that is dry, corrosive-free, and not in direct sunlight. Correct storage: 215.
2 INSTALLATION 2.1 MECHANICAL 2 INSTALLATION 2.1MECHANICAL 2.1.1 DESCRIPTION The 489 is packaged in the standard GE Multilin SR series arrangement, which consists of a drawout unit and a companion fixed case. The case provides mechanical protection to the unit, and is used to make permanent connections to all external equipment. The only electrical components mounted in the case are those required to connect the unit to the external wiring.
2.1 MECHANICAL 2 INSTALLATION 2.1.2 PRODUCT IDENTIFICATION Each 489 unit and case are equipped with a permanent label. This label is installed on the left side (when facing the front of the relay) of both unit and case. The case label details which units can be installed.
2 INSTALLATION 2.1 MECHANICAL 2.1.3 INSTALLATION The 489 case, alone or adjacent to another SR unit, can be installed in a standard 19-inch rack panel (see Figure 2–1: 489 Dimensions on page 2–1). Provision must be made for the front door to swing open without interference to, or from, adjacent equipment. The 489 unit is normally mounted in its case when shipped from the factory and should be removed before mounting the case in the supporting panel. Unit withdrawal is described in the next section.
2.1 MECHANICAL 3. 2 INSTALLATION Grasp the locking handle in the center and pull firmly, rotating the handle up from the bottom of the unit until movement ceases. 2 Figure 2–6: ROTATE HANDLE TO STOP POSITION 4. Once the handle is released from the locking mechanism, the unit can freely slide out of the case when pulled by the handle. It may sometimes be necessary to adjust the handle position slightly to free the unit. Figure 2–7: SLIDE UNIT OUT OF CASE To insert the unit into the case: 1.
2 INSTALLATION 2.1 MECHANICAL 2.1.
2.1 MECHANICAL 2 INSTALLATION Table 2–1: 489 TERMINAL LIST TERMINAL A01 2 2-6 DESCRIPTION TERMINAL RTD #1 HOT D21 DESCRIPTION ASSIGNABLE SW. 06 A02 RTD #1 COMPENSATION D22 ASSIGNABLE SW.
2 INSTALLATION 2.2 ELECTRICAL 2.2ELECTRICAL 2.2.
2.2 ELECTRICAL 2 INSTALLATION 2.2.2 GENERAL WIRING CONSIDERATIONS A broad range of applications are available to the user and it is not possible to present typical connections for all possible schemes. The information in this section will cover the important aspects of interconnections, in the general areas of instrument transformer inputs, other inputs, outputs, communications and grounding.
2 INSTALLATION 2.2 ELECTRICAL 2.2.3 CONTROL POWER Control power supplied to the 489 must match the installed switching power supply. If the applied voltage does not match, damage to the unit may occur. CAUTION The order code from the terminal label on the side of the drawout unit specifies the nominal control voltage as one of the following: • LO: 20 to 60 V DC; 20 to 48 V AC • HI: 90 to 300 V DC; 70 to 265 V AC Ensure applied control voltage and rated voltage on drawout case terminal label match.
2.2 ELECTRICAL 2 INSTALLATION b) GROUND CURRENT 2 The 489 has a dual primary isolating transformer for ground CT connections. There are no internal ground connections on the ground current inputs. The ground CT circuits are shorted by automatic mechanisms on the case if the unit is withdrawn. The 1 A tap is used for 1 A or 5 A secondary CTs in either core balance or residual ground configurations. If the 1 A tap is used, the 489 measures up to 20 A secondary with a maximum ground CT ratio of 10000:1.
2 INSTALLATION 2.2 ELECTRICAL 2.2.5 VOLTAGE INPUTS The 489 has four voltage transformer inputs, three for generator terminal voltage and one for neutral voltage. There are no internal fuses or ground connections on the voltage inputs. The maximum VT ratio is 240.00:1. The two possible VT connections for generator terminal voltage measurement are open delta or wye (see Figure 2–9: Typical Wiring Diagram on page 2–7).
2.2 ELECTRICAL 2 INSTALLATION 2.2.8 ANALOG OUTPUTS The 489 provides four analog output channels, which when ordering, are selected to provide a full-scale range of either 0 to 1 mA (into a maximum 10 kΩ impedance), or 4 to 20 mA (into a maximum 600 Ω impedance). Each channel can be configured to provide full-scale output sensitivity for any range of any measured parameter. The analog output circuitry is isolated as a group with the Analog Input circuitry and the RTD circuitry.
2 INSTALLATION 2.2 ELECTRICAL 2.2.10 OUTPUT RELAYS There are six Form C output relays (see the SPECIFICATIONS for ratings). Five of the six relays are always non-failsafe, R6 Service is always failsafe. As failsafe, R6 relay will be energized normally and de-energize when called upon to operate. It will also de-energize when control power to the 489 is lost and therefore, be in its operated state. All other relays, being non-failsafe, will be de-energized normally and energize when called upon to operate.
2.2 ELECTRICAL 2 INSTALLATION 2.2.12 RS485 COMMUNICATIONS PORTS 2 Two independent two-wire RS485 ports are provided. Up to 32 489 relays can be daisy-chained together on a communication channel without exceeding the driver capability. For larger systems, additional serial channels must be added. It is also possible to use commercially available repeaters to increase the number of relays on a single channel to more than 32. A suitable cable should have a characteristic impedance of 120 Ω (e.g.
2 INSTALLATION 2.2 ELECTRICAL 2.2.13 DIELECTRIC STRENGTH It may be required to test a complete motor starter for dielectric strength (“flash” or hi-pot”) with the 489 installed. The 489 is rated for 1.9 kV AC for 1 second or 1.6 kV AC for 1 minute (per UL 508) isolation between relay contacts, CT inputs, VT inputs, trip coil supervision, and the safety ground terminal G12. Some precautions are required to prevent damage to the 489 during these tests.
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3 USER INTERFACES 3.1 FACEPLATE INTERFACE 3 USER INTERFACES 3.1FACEPLATE INTERFACE 3.1.1 DISPLAY All messages appear on a 40-character liquid crystal display. Messages are in plain English and do not require the aid of an instruction manual for deciphering. When the user interface is not being used, the display defaults to the user-defined status messages. Any trip or alarm automatically overrides the default messages and is immediately displayed. 3.1.
3.1 FACEPLATE INTERFACE 3 USER INTERFACES • VT FAILURE: Indicates that the VT fuse failure alarm is picked up. • BREAKER FAILURE: Indicates that the breaker failure or trip coil monitor alarm is picked up. c) OUTPUT RELAY LED INDICATORS 3 • R1 TRIP: R1 Trip relay has operated (energized). • R2 AUXILIARY: R2 Auxiliary relay has operated (energized). • R3 AUXILIARY: R3 Auxiliary relay has operated (energized). • R4 AUXILIARY: R4 Auxiliary relay has operated (energized).
3 USER INTERFACES 2. Press the 3. Repeat Step 2 for the remaining characters: e, n, e, r, a, t, o, r, #, and 1. 4. Press VALUE ENTER or 3.1 FACEPLATE INTERFACE VALUE key until "G" appears, then press the decimal key to advance the cursor. to store the text message. c) ENTERING +/– SIGNS The 489 does not have a ‘+’ or ‘–’ key.
3.2 SOFTWARE INTERFACE 3 USER INTERFACES 3.2SOFTWARE INTERFACE WARNING 3.2.1 REQUIREMENTS The 489PC software is not compatible with Mods and could cause errors if setpoints are edited. However, it can be used to upgrade older versions of relay firmware. When doing this, previously programmed setpoints will be erased. They should be saved beforehand to a file for reprogramming with the new firmware. The following minimum requirements must be met for the 489PC software to properly operate on a computer.
3 USER INTERFACES 3.2 SOFTWARE INTERFACE 3.2.2 INSTALLATION/UPGRADE a) CHECKING IF INSTALLATION/UPGRADE IS REQUIRED If 489PC is already installed, run the program and use the following procedure to check if it needs upgrading: 1. While 489PC is running, insert the GE Multilin Products CD and allow it to autostart (alternately, load the D:\index.htm file from the CD into your default web browser), OR Go to the GE Multilin website at www.GEindustrial.com/multilin (preferred method) 2.
3.2 SOFTWARE INTERFACE 3 USER INTERFACES b) INSTALLING/UPGRADING 489PC Installation/upgrade of the 489PC software is accomplished as follows: 1. Ensure that Windows is running on the local PC 2. Insert the GE Multilin Products CD into your computer or point your web browser to the GE Multilin website at www.GEindustrial.com/multilin. With Windows95/98, the Products CD will launch the welcome screen (see figure below) automatically; with Windows 3.1, open the Products CD by opening the index.
3 USER INTERFACES 3.2 SOFTWARE INTERFACE 3.2.3 CONFIGURATION 1. Connect the computer running 489PC to the relay via one of the RS485 ports (see Section 2.2.12: RS485 Communications Ports on page 2–14 for wiring diagram and additional information) or directly via the RS232 front port. 2. Start 489PC. When starting, the software attempts to communicate with the relay. If communications are established, the relay graphic shown on the monitor will display the same information as the actual relay.
3.2 SOFTWARE INTERFACE 3 USER INTERFACES 3.2.4 USING 489PC a) SAVING SETPOINTS TO A FILE Setpoints must be saved to a file on the local PC before performing any firmware upgrades. Saving setpoints is also highly recommended before making any setpoint changes or creating new setpoint files. The following procedure illustrates how to save setpoint files. 1. Select the File > Properties menu item.
3 USER INTERFACES 3.2 SOFTWARE INTERFACE 32 I 151 A8 .000 Modification Number (000 = none) GE Multilin use only Firmware Revision Required 489 hardware revision Product code (32 = 489 Generator Management Relay) 808733A1.CDR 5. The 489PC software automatically lists all filenames beginning with 32. Select the appropriate file and click OK to continue. 6. 489PC prompts with the following dialog box. This will be the last chance to cancel the firmware upgrade before the flash memory is erased.
3.2 SOFTWARE INTERFACE 3 USER INTERFACES d) ENTERING SETPOINTS The following example illustrates how setpoints are entered and edited with the 489PC software. 1. Select the Setpoint > System Setup menu item. 2. Click the Current Sensing tab to edit the S2 SYSTEM SETUP Ö CURRENT SENSING setpoints. 489PC displays the following window: 3. For setpoints requiring numerical values, e.g.
3 USER INTERFACES 3.2 SOFTWARE INTERFACE 3. Select the File > Open menu item and enter the location and file name of the saved setpoint file. When the file is opened, the 489PC software will be in “File Editing” mode and “Not Communicating”. 4. Select the File > Properties menu item and note the version code of the setpoint file. If the Version code of the setpoint file (e.g. 1.
3.2 SOFTWARE INTERFACE 3 USER INTERFACES 3.2.5 TRENDING Trending from the 489 can be accomplished via the 489PC program. Many different parameters can be trended and graphed at sampling periods ranging from 1 second up to 1 hour.
3 USER INTERFACES 5. 3.2 SOFTWARE INTERFACE Select the Sample Rate through the pull-down menu, click the checkboxes of the graphs to be displayed, then click RUN to begin the trending sampling.
3.2 SOFTWARE INTERFACE 3 USER INTERFACES 3.2.6 WAVEFORM CAPTURE The 489PC software can be used to capture waveforms from the 489 at the instant of a trip. A maximum of 64 cycles can be captured and the trigger point can be adjusted to anywhere within the set cycles. A maximum of 16 waveforms can be buffered (stored) with the buffer/cycle trade-off. The waveforms captured are: Phase Currents A, B, and C; Neutral Currents A, B, and C; Ground Current; and Phase Voltages A-N, B-N, and C-N 3 1.
3 USER INTERFACES 3.2 SOFTWARE INTERFACE 3.2.7 PHASORS The 489PC software can be used to view the phasor diagram of three phase currents and voltages. The phasors are for: • Phase Voltages A, B, and C • Phase Currents A, B, and C • Impedance ZLoss 1. With 489PC running and communications established, open the Metering Data window by selecting the Actual > Metering Data menu item then clicking the Phasors tab. The phasor diagram and the values of the voltage phasors are displayed.
3.2 SOFTWARE INTERFACE 3 USER INTERFACES 3.2.8 EVENT RECORDER The 489 event recorder can be viewed through the 489PC software. The event recorder stores generator and system information each time an event occurs (e.g. a generator trip). Up to 40 events can be stored, where EVENT01 is the most recent and EVENT40 is the oldest. EVENT40 is overwritten whenever a new event occurs. 3 1.
3 USER INTERFACES 3.2 SOFTWARE INTERFACE 3.2.9 TROUBLESHOOTING This section provides some procedures for troubleshooting the 489PC when troubles are encountered within the Windows environment (for example, General Protection Fault (GPF), Missing Window, Problems in Opening or Saving Files, and Application Error messages). If the 489PC software causes Windows system errors: 1. Check system resources: • In Windows 95/98, right-click on the My Computer icon and click on the Performance tab.
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4 SETPOINTS 4.1 OVERVIEW 4 SETPOINTS 4.1OVERVIEW ð S1 SETPOINTS 489 SETUP 4.1.1 SETPOINT MESSAGE MAP ENTER ð ESCAPE ESCAPE MESSAGE ESCAPE MESSAGE ESCAPE MESSAGE ESCAPE MESSAGE ESCAPE MESSAGE ESCAPE MESSAGE PASSCODE [ENTER] for more See page 4–7. PREFERENCES [ENTER] for more See page 4–7. SERIAL PORT [ENTER] for more See page 4–8. REAL TIME CLOCK [ENTER] for more See page 4–9. DEFAULT MESSAGES [ENTER] for more See page 4–9.
4.1 OVERVIEW 4 SETPOINTS FIELD-BKR DISCREP. [ENTER] for more See page 4–18. TACHOMETER [ENTER] for more See page 4–18. WAVEFORM CAPTURE [ENTER] for more See page 4–19. GND SWITCH STATUS [ENTER] for more See page 4–19. ð RELAY RESET MODE [ENTER] for more See page 4–20. ð OVERCURRENT ALARM [ENTER] for more See page 4–24. OFFLINE O/C [ENTER] for more See page 4–24. INADVERTENT ENERG. [ENTER] for more See page 4–25.
4 SETPOINTS 4.1 OVERVIEW ESCAPE MESSAGE ESCAPE MESSAGE ESCAPE MESSAGE ESCAPE MESSAGE ESCAPE MESSAGE OVERFREQUENCY [ENTER] for more See page 4–38. NEUTRAL OV (Fund) [ENTER] for more See page 4–39. NEUTRAL OV (3rd) [ENTER] for more See page 4–40. LOSS OF EXCITATION [ENTER] for more See page 4–42. DISTANCE ELEMENT [ENTER] for more See page 4–43. REACTIVE POWER [ENTER] for more See page 4–46. REVERSE POWER [ENTER] for more See page 4–47.
4.1 OVERVIEW 4 SETPOINTS ESCAPE MESSAGE ESCAPE MESSAGE ESCAPE MESSAGE ESCAPE MESSAGE ESCAPE MESSAGE ESCAPE MESSAGE ESCAPE MESSAGE See page 4–71. CURRENT DEMAND [ENTER] for more See page 4–72. MW DEMAND [ENTER] for more See page 4–72. Mvar DEMAND [ENTER] for more See page 4–72. MVA DEMAND [ENTER] for more See page 4–72. PULSE OUTPUT [ENTER] for more See page 4–74. RUNNING HOUR SETUP [ENTER] for more See page 4–74.
4 SETPOINTS 4.1 OVERVIEW 4.1.2 TRIPS / ALARMS/ CONTROL FEATURES The 489 Generator Management Relay has three basic function categories: TRIPS, ALARMS, and CONTROL. a) TRIPS A 489 trip feature may be assigned to any combination of the four output relays: R1 Trip, R2 Auxiliary, R3 Auxiliary, and R4 Auxiliary. If a Trip becomes active, the appropriate LED (indicator) on the 489 faceplate illuminates to indicate which output relay has operated. Each trip feature may be programmed as latched or unlatched.
4.1 OVERVIEW 4 SETPOINTS 4.1.4 DUAL SETPOINTS The 489 has dual settings for the current, voltage, power, RTD, and thermal model protection elements (setpoints pages S5 to S9). These setpoints are organized in two groups: the main group (Group 1) and the alternate group (Group 2). Only one group of settings is active in the protection scheme at a time. The active group can be selected using the ACTIVATE SETPOINT GROUP setpoint or an assigned digital input in the S3 Digital Inputs setpoints page.
4 SETPOINTS 4.2 S1 489 SETUP 4.2S1 489 SETUP 4.2.1 PASSCODE PATH: SETPOINTS Ö S1 489 SETUP Ö PASSCODE ð PASSCODE [ENTER] for more ð ENTER PASSCODE FOR ESCAPE ACCESS: Range: 1 to 8 numeric digits. Seen only if passcode is not "0" and SETPOINT ACCESS is "Restricted". ESCAPE SETPOINT ACCESS: Permitted Range: Permitted, Restricted. Seen only if the passcode is "0" or SETPOINT ACCESS is "Permitted". CHANGE PASSCODE: No Range: No, Yes.
4.2 S1 489 SETUP 4 SETPOINTS Some of the 489 characteristics can be modified to suit different situations. Normally the S1 489 SETUP Ö PREFERENCES setpoints group will not require any changes. • DEFAULT MESSAGE CYCLE TIME: If multiple default messages are chosen, the display automatically cycles through these messages. The messages display time can be changed to accommodate different reading rates.
4 SETPOINTS 4.2 S1 489 SETUP 4.2.4 REAL TIME CLOCK PATH: SETPOINTS Ö S1 489 SETUP ÖØ REAL TIME CLOCK ð REAL TIME CLOCK [ENTER] for more ENTER Range: 01/01/1995 to 12/31/2094 ð DATE (MM, DD, YYYY): ESCAPE 01/01/1995 ESCAPE TIME (HH.MM.
4.2 S1 489 SETUP 4 SETPOINTS The 489 displays default messages after a period of keypad inactivity. Up to 20 default messages can be selected for display. If more than one message is chosen, they will automatically scroll at a rate determined by the S1 489 SETUP ÖØ PREFERENCES Ö DEFAULT MESSAGE CYCLE TIME setpoint. Any actual value can be selected for display. In addition, up to 5 userprogrammable messages can be created and displayed with the message scratchpad.
4 SETPOINTS 4.2 S1 489 SETUP 4.2.
4.3 S2 SYSTEM SETUP 4 SETPOINTS 4.3S2 SYSTEM SETUP 4.3.1 CURRENT SENSING PATH: SETPOINTS ÖØ S2 SYSTEM SETUP Ö CURRENT SENSING ð CURRENT SENSING [ENTER] for more ENTER Range: 1 to 5000 step 1, Not Programmed ------------- ESCAPE GROUND CT: 50:0.025 Range: None, 1A Secondary, 5A Secondary, 50:0.
4 SETPOINTS 4.3 S2 SYSTEM SETUP 4.3.3 GENERATOR PARAMETERS PATH: SETPOINTS ÖØ S2 SYSTEM SETUP ÖØ GENERATOR PARAMETERS GEN. PARAMETERS [ENTER] for more ESCAPE MVA: ---------------- Range: 0.050 to 2000.000 MVA “----------” indicates Not Programmed ESCAPE GENERATOR RATED POWER FACTOR: ------- Range: 0.05 to 0.99, 1.
4.4 S3 DIGITAL INPUTS 4 SETPOINTS 4.4S3 DIGITAL INPUTS 4.4.1 DESCRIPTION The 489 has nine (9) digital inputs for use with external contacts. Two of the 489 digital inputs have been pre-assigned as inputs having a specific function. The Access Switch does not have any setpoint messages associated with it. The Breaker Status input, may be configured for either an 'a' or 'b' auxiliary contact.
4 SETPOINTS 4.4 S3 DIGITAL INPUTS 4.4.3 GENERAL INPUT A TO G PATH: SETPOINTS ÖØ S3 DIGITAL INPUTS ÖØ GENERAL INPUT A(G) ð GENERAL INPUT A [ENTER] for more ENTER ð ASSIGN DIGITAL Range: None, Input 1 to Input 7. If an input is assigned to the Tachometer function, it may not be used here ESCAPE INPUT: None ESCAPE ASSERTED DIGITAL INPUT STATE: Closed Range: Closed, Open INPUT NAME: Input A Range: 12 alphanumeric characters BLOCK INPUT FROM ONLINE: 0 s Range: 0 to 5000 in steps of 1.
4.4 S3 DIGITAL INPUTS 4 SETPOINTS 4.4.
4 SETPOINTS 4.4 S3 DIGITAL INPUTS The following chart illustrates the Group 2 (alternate group) setpoints 2 S5 SETPOINTS CURRENT ELEMENTS 2 S6 SETPOINTS VOLTAGE ELEMENTS 2 S7 SETPOINTS POWER ELEMENTS 2 S8 SETPOINTS RTD TEMPERATURE 2 S9 SETPOINTS THERMAL MODEL 2 OVERCURRENT ALARM 2 UNDERVOLTAGE 2 REACTIVE POWER 2 RTD TYPES 2 MODEL SETUP 2 OFFLINE O/C 2 OVERVOLTAGE 2 REVERSE POWER 2 RTD #1 2 THERMAL ELEMENTS 2 INADVERTENT ENERG.
4.4 S3 DIGITAL INPUTS 4 SETPOINTS 4.4.9 FIELD-BREAKER DISCREPANCY PATH: SETPOINTS ÖØ S3 DIGITAL INPUTS ÖØ FIELD-BKR DISCREP. ð FIELD-BKR DISCREP. [ENTER] for more ENTER Range: None, Input 1 to Input 7. If an input is assigned to the Tachometer, it may not be used here. INPUT: None ESCAPE FIELD STATUS CONTACT: Auxiliary a Range: Auxiliary a, Auxiliary b ASSIGN TRIP RELAYS (1-4): 1--- Range: Any combination of Relays 1 to 4 FIELD-BKR DISCREP. TRIP DELAY: 1.0 s Range: 0.1 to 500.
4 SETPOINTS 4.4 S3 DIGITAL INPUTS One of assignable digital inputs 4 to 7 may be assigned to the tachometer function to measure mechanical speed. The time between each input closure is measured and converted to an RPM value based on one closure per revolution. If an overspeed trip or alarm is enabled, and the measured RPM exceeds the threshold setpoint for the time specified by the delay, a trip or alarm will occur. The RPM value can be viewed with the A2 METERING DATA ÖØ SPEED ÖØ TACHOMETER actual value.
4.5 S4 OUTPUT RELAYS 4 SETPOINTS 4.5S4 OUTPUT RELAYS 4.5.1 DESCRIPTION Five of the six output relays are always non-failsafe, R6 Service is always failsafe. As failsafe, R6 relay will be energized normally and de-energize when called upon to operate. It will also de-energize when control power to the 489 is lost and therefore, be in its operated state. All other relays, being non-failsafe, will be de-energized normally and energize when called upon to operate.
4 SETPOINTS 4.6 S5 CURRENT ELEMENTS 4.6S5 CURRENT ELEMENTS 4.6.1 INVERSE TIME OVERCURRENT CURVE CHARACTERISTICS a) DESCRIPTION The 489 inverse time overcurrent curves may be either ANSI, IEC, or GE Type IAC standard curve shapes. This allows for simplified coordination with downstream devices. If however, none of these curve shapes is adequate, the FlexCurve™ may be used to customize the inverse time curve characteristics.
4.6 S5 CURRENT ELEMENTS 4 SETPOINTS c) IEC CURVES For European applications, the relay offers the four standard curves defined in IEC 255-4 and British standard BS142. These are defined as IEC Curve A, IEC Curve B, IEC Curve C, and Short Inverse. The formula for these curves is: ⎛ ⎞ K -⎟ T = M × ⎜ -------------------------------------E ⎝ ( I ⁄ I pickup ) – 1⎠ where: (EQ 4.
4 SETPOINTS 4.6 S5 CURRENT ELEMENTS e) FLEXCURVE™ The custom FlexCurve™ has setpoints for entering times to trip at the following current levels: 1.03, 1.05, 1.1 to 6.0 in steps of 0.1 and 6.5 to 20.0 in steps of 0.5. The relay then converts these points to a continuous curve by linear interpolation between data points. To enter a custom FlexCurve™, read off each individual point from a time overcurrent coordination drawing and enter it into a table as shown.
4.6 S5 CURRENT ELEMENTS 4 SETPOINTS 4.6.2 OVERCURRENT ALARM PATH: SETPOINTS ÖØ S5 CURRENT ELEMENTS Ö OVERCURRENT ALARM ð OVERCURRENT ALARM [ENTER] for more ENTER Range: Off, Latched, Unlatched ALARM: Off ESCAPE ASSIGN ALARM RELAYS (2-5): ---5 Range: Any combination of Relays 2 to 5 OVERCURRENT ALARM LEVEL: 1.01 x FLA Range: 0.10 to 1.50 × FLA in steps of 0.01 OVERCURRENT ALARM DELAY: 0.1 s Range: 0.1 to 250.0 s in steps of 0.
4 SETPOINTS 4.6 S5 CURRENT ELEMENTS 4.6.4 INADVERTENT ENERGIZATION PATH: SETPOINTS ÖØ S5 CURRENT ELEMENTS ÖØ INADVERTENT ENERG. ð INADVERTENT ENERG. [ENTER] for more Range: Off, Latched, Unlatched ð INADVERTENT ENERGIZE ENTER ESCAPE TRIP: Off ESCAPE ASSIGN ALARM RELAYS (1-4): 1--- Range: Any combination of Relays 1 to 4 ARMING SIGNAL: U/V and Offline Range: U/V and Offline, U/V or Offline INADVERTENT ENERGIZE O/C PICKUP: 0.05 x CT Range: 0.05 to 3.00 × CT in steps of 0.
4.6 S5 CURRENT ELEMENTS 4 SETPOINTS 4.6.5 VOLTAGE RESTRAINED PHASE OVERCURRENT PATH: SETPOINTS ÖØ S5 CURRENT ELEMENTS ÖØ PHASE OVERCURRENT ð PHASE OVERCURRENT [ENTER] for more ENTER ð PHASE OVERCURRENT Range: Off, Latched, Unlatched ESCAPE TRIP: Off ESCAPE ASSIGN TRIP RELAYS (1-4): 1--- Range: Any combination of Relays 1 to 4 ENABLE VOLTAGE RESTRAINT: No Range: No, Yes VOLTAGE LOWER LIMIT: 10% Range: 10 to 60%. Seen only if ENABLE VOLTAGE RESTRAINT is "Yes" PHASE OVERCURRENT PICKUP: 10.
4 SETPOINTS 4.6 S5 CURRENT ELEMENTS The 489 phase overcurrent restraint voltages and restraint characteristic are shown below: 1 Phase Overcurrent Restraint Voltages: VOLTAGE IA Vab IB Vbc IC Vca Curve Pickup Multiplier CURRENT 0.9 0.8 0.7 0.6 0.5 0.4 0.3 0.2 0.1 0 0 0.1 808792A3.CDR 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1 Phase-Phase Voltage / Rated Phase-Phase Voltage Figure 4–2: VOLTAGE RESTRAINT CHARACTERISTIC 4.6.
4.6 S5 CURRENT ELEMENTS 4 SETPOINTS 2 K = I2 T defines the short time negative sequence capability of the generator where: (EQ 4.
4 SETPOINTS 4.6 S5 CURRENT ELEMENTS 4.6.7 GROUND OVERCURRENT PATH: SETPOINTS ÖØ S5 CURRENT ELEMENTS ÖØ GROUND O/C ð GROUND O/C [ENTER] for more ENTER ð GROUND OVERCURRENT Range: Off, Latched, Unlatched ESCAPE ALARM: Off ESCAPE ASSIGN ALARM RELAYS (2-5): ---5 Range: Any combination of Relays 2 to 5 GROUND O/C ALARM PICKUP: 0.20 x CT Range: 0.05 to 20.00 × CT in steps of 0.
4.6 S5 CURRENT ELEMENTS 4 SETPOINTS 4.6.8 PHASE DIFFERENTIAL PATH: SETPOINTS ÖØ S5 CURRENT ELEMENTS ÖØ PHASE DIFFERENTIAL ð PHASE DIFFERENTIAL [ENTER] for more ENTER Range: Off, Latched, Unlatched TRIP: Off ESCAPE ASSIGN TRIP RELAYS (1-4): 1--- Range: Any combination of Relays 1 to 4 DIFFERENTIAL TRIP MIN. PICKUP: 0.10 x CT Range: 0.05 to 1.00 × CT in steps of 0.
4 SETPOINTS 4.6 S5 CURRENT ELEMENTS 1 0.8 0.7 OPERATE REGION 0.6 Slope 2 = 20% 0.5 0.4 0.3 0.2 Slope 1 = 10% I OPERATE (multiples of CT) 0.9 Minimum Pickup = 0.10 x CT 0.1 0 0 0.5 1 1.5 2 2.5 3 3.5 4 I RESTRAINT (multiples of CT) 4.5 5 808790A2.CDR 4 Figure 4–4: DIFFERENTIAL ELEMENTS 4.6.9 GROUND DIRECTIONAL PATH: SETPOINTS ÖØ S5 CURRENT ELEMENTS ÖØ GROUND DIRECTIONAL ð GROUND DIRECTIONAL [ENTER] for more ESCAPE DIGITAL INPUTS: Yes Range: Yes, No.
4.6 S5 CURRENT ELEMENTS 4 SETPOINTS The 489 detects ground directional by using two measurement quantities: V0 and I0. The angle between these quantities determines if a ground fault is within the generator or not. This function should be coordinated with the 59GN element (95% stator ground protection) to ensure proper operation of the element. Particularly, this element should be faster. This element must use a core balance CT to derive the I0 signal. Polarity is critical in this element.
4 SETPOINTS 4.7 S6 VOLTAGE ELEMENTS 4.7S6 VOLTAGE ELEMENTS 4.7.1 UNDERVOLTAGE PATH: SETPOINTS ÖØ S6 VOLTAGE ELEMENTS Ö UNDERVOLTAGE ð UNDERVOLTAGE [ENTER] for more ENTER Range: Off, Latched, Unlatched ð UNDERVOLTAGE ESCAPE ALARM: Off ESCAPE ASSIGN ALARM RELAYS (2-5): ---5 Range: Any combination of Relays 2 to 5 UNDERVOLTAGE ALARM PICKUP: 0.85 x Rated Range: 0.50 to 0.99 × Rated in steps of 0.01 UNDERVOLTAGE ALARM DELAY: 3.0 s Range: 0.2 to 120.0 s in steps of 0.
4.7 S6 VOLTAGE ELEMENTS 4 SETPOINTS 4.7.2 OVERVOLTAGE PATH: SETPOINTS ÖØ S6 VOLTAGE ELEMENTS ÖØ OVERVOLTAGE ð OVERVOLTAGE [ENTER] for more ENTER ALARM: Off ESCAPE ASSIGN ALARM RELAYS (2-5): ---5 Range: Any combination of Relays 2 to 5 OVERVOLTAGE ALARM PICKUP: 1.15 x Rated Range: 1.01 to 1.50 × Rated in steps of 0.01 OVERVOLTAGE ALARM DELAY: 3.0 s Range: 0.2 to 120.0 s in steps of 0.
4 SETPOINTS 4.7 S6 VOLTAGE ELEMENTS 4.7.3 VOLTS/HERTZ PATH: SETPOINTS ÖØ S6 VOLTAGE ELEMENTS ÖØ VOLTS/HERTZ ð VOLTS/HERTZ [ENTER] for more ENTER Range: Off, Latched, Unlatched ð VOLTS/HERTZ ESCAPE ALARM: Off ESCAPE ASSIGN ALARM RELAYS (2-5): ---5 Range: Any combination of Relays 2 to 5 VOLTS/HERTZ ALARM PICKUP: 1.00 x Nominal Range: 0.50 to 1.99 × Nominal in steps of 0.01 VOLTS/HERTZ ALARM DELAY: 3.0 s Range: 0.1 to 150.0 s in steps of 0.
4.7 S6 VOLTAGE ELEMENTS 4 SETPOINTS 1000 The formula for Volts/Hertz Curve 2 is: V when ---- > Pickup F 10 10 3 1 1 0.3 The V/Hz Curve 2 trip curves are shown on the right for delay settings of 0.1, 0.3, 1, 3, and 10 seconds. 0.1 1.
4 SETPOINTS 4.7 S6 VOLTAGE ELEMENTS 4.7.5 UNDERFREQUENCY PATH: SETPOINTS ÖØ S6 VOLTAGE ELEMENTS ÖØ UNDERFREQUENCY ð UNDERFREQUENCY [ENTER] for more ENTER ð BLOCK UNDERFREQUENCY Range: 0 to 5 s in steps of 1 ESCAPE FROM ONLINE: 1 s ESCAPE VOLTAGE LEVEL CUTOFF: 0.50 x Rated Range: 0.50 to 0.99 × Rated in steps of 0.01 UNDERFREQUENCY ALARM: Off Range: Off, Latched, Unlatched ASSIGN ALARM RELAYS (2-5): ---5 Range: Any combination of Relays 2 to 5 UNDERFREQUENCY ALARM LEVEL: 59.
4.7 S6 VOLTAGE ELEMENTS 4 SETPOINTS 4.7.6 OVERFREQUENCY PATH: SETPOINTS ÖØ S6 VOLTAGE ELEMENTS ÖØ OVERFREQUENCY ð OVERFREQUENCY [ENTER] for more ENTER Range: 0 to 5 s in steps of 1 FROM ONLINE: 1 s ESCAPE VOLTAGE LEVEL CUTOFF: 0.50 x Rated Range: 0.50 to 0.99 × Rated in steps of 0.01 OVERFREQUENCY ALARM: Off Range: Off, Latched, Unlatched ASSIGN ALARM RELAYS (2-5): ---5 Range: Any combination of Relays 2 to 5 OVERFREQUENCY ALARM LEVEL: 60.50 Hz Range: 25.01 to 70.00 Hz in steps of 0.
4 SETPOINTS 4.7 S6 VOLTAGE ELEMENTS 4.7.7 NEUTRAL OVERVOLTAGE (FUNDAMENTAL) PATH: SETPOINTS ÖØ S6 VOLTAGE ELEMENTS ÖØ O/V (FUND) ð NEUTRAL O/V (FUND) [ENTER] for more ENTER Range: Yes, No. Seen only if a digital input assigned to GROUND SWITCH STATUS ð SUPERVISE WITH ESCAPE DIGITAL INPUT: No ESCAPE NEUTRAL OVERVOLTAGE ALARM: Off Range: Off, Latched, Unlatched ASSIGN ALARM RELAYS (2-5): ---5 Range: Any combination of Relays 2 to 5 NEUTRAL O/V ALARM LEVEL: 3.0 Vsec Range: 2.0 to 100.
4.7 S6 VOLTAGE ELEMENTS 4 SETPOINTS AUXILIARY CONTACT TO DIGITAL INPUT FOR NEUTRAL O/V SUPERVISION GROUNDING SWITCH C(B) C(B) A 59G A B(C) GENERATOR 1 B(C) GENERATOR 2 808816A3.CDR TO Vneutral OF EACH 489 4 Figure 4–6: NEUTRAL OVERVOLTAGE DETECTION NOTE If the ground directional element is enabled, the Neutral Overvoltage element should be coordinated with it.
4 SETPOINTS 4.7 S6 VOLTAGE ELEMENTS The neutral undervoltage function responds to 3rd harmonic voltage measured at the generator neutral and output terminals. When used in conjunction with the Neutral Overvoltage (fundamental frequency) function, it provides 100% ground fault protection of the stator windings. WYE CONNECTED VTS: Since the amount of third harmonic voltage that appears in the neutral is both load and machine dependent, the protection method of choice is an adaptive method.
4.7 S6 VOLTAGE ELEMENTS 4 SETPOINTS 4.7.9 LOSS OF EXCITATION PATH: SETPOINTS ÖØ S6 VOLTAGE ELEMENTS ÖØ LOSS OF EXCITATION ð LOSS OF EXCITATION [ENTER] for more ENTER Range: Yes, No SUPERVISION: Yes ESCAPE VOLTAGE LEVEL: 0.70 x Rated Range: 0.70 to 1.00 × Rated in steps of 0.01. Seen only if ENABLE VOLTAGE SUPERVISION is "Yes" CIRCLE 1 TRIP: Off Range: Off, Latched, Unlatched ASSIGN CIRCLE 1 TRIP RELAYS (1-4): 1--- Range: Any combination of Relays 1 to 4 CIRCLE 1 DIAMETER: 25.
4 SETPOINTS where: 4.7 S6 VOLTAGE ELEMENTS Zprimary= primary ohms impedance CT Ratio = programmed CT ratio, if CT ratio is 1200:5 use a value of 1200 / 5 = 240 VT Ratio = programmed VT ratio, if VT ratio is 100:1 use a value of 100 4 Figure 4–7: LOSS OF EXCITATION R-X DIAGRAM 4.7.
4.7 S6 VOLTAGE ELEMENTS 4 SETPOINTS The distance protection function (ANSI device 21) implements two zones of mho phase-to-phase distance protection (six elements total) using the conventional phase comparator approach, with the polarizing voltage derived from the pre-fault positive sequence voltage of the protected loop. This protection is intended as backup for the primary line protection.
4 SETPOINTS 4.8S7 POWER ELEMENTS 4.8 S7 POWER ELEMENTS 4.8.1 POWER MEASUREMENT CONVENTIONS Generation of power will be displayed on the 489 as positive watts. By convention, an induction generator normally requires reactive power from the system for excitation. This is displayed on the 489 as negative vars. A synchronous generator on the other hand has its own source of excitation and can be operated with either lagging or leading power factor.
4.8 S7 POWER ELEMENTS 4 SETPOINTS 4.8.2 REACTIVE POWER PATH: SETPOINTS ÖØ S7 POWER ELEMENTS Ö REACTIVE POWER ð REACTIVE POWER [ENTER] for more ENTER Range: 0 to 5000 s in steps of 1 FROM START: 1 s ESCAPE REACTIVE POWER ALARM: Off Range: Off, Latched, Unlatched ASSIGN ALARM RELAYS (2-5): ---5 Range: Any combination of Relays 2 to 5 POSITIVE Mvar ALARM LEVEL: 0.85 x Rated Range: 0.02 to 2.01 × Rated in steps of 0.01 NEGATIVE Mvar ALARM LEVEL: 0.85 x Rated Range: 0.02 to 2.
4 SETPOINTS 4.8 S7 POWER ELEMENTS 4.8.3 REVERSE POWER PATH: SETPOINTS ÖØ S7 POWER ELEMENTS ÖØ REVERSE POWER ð REVERSE POWER [ENTER] for more ENTER ð BLOCK REVERSE POWER Range: 0 to 5000 s in steps of 1 ESCAPE FROM ONLINE: 1 s ESCAPE REVERSE POWER ALARM: Off Range: Off, Latched, Unlatched ASSIGN ALARM RELAYS (2-5): ---5 Range: Any combination of Relays 2 to 5 REVERSE POWER ALARM LEVEL: 0.05 x Rated MW Range: 0.02 to 0.99 × Rated MW in steps of 0.01 REVERSE POWER ALARM DELAY: 10.
4.8 S7 POWER ELEMENTS 4 SETPOINTS 4.8.4 LOW FORWARD POWER PATH: SETPOINTS ÖØ S7 POWER ELEMENTS ÖØ LOW FORWARD POWER ð LOW FORWARD POWER [ENTER] for more ENTER Range: 0 to 15000 s in steps of 1 FROM ONLINE: 0 s ESCAPE LOW FORWARD POWER ALARM: Off Range: Off, Latched, Unlatched ASSIGN ALARM RELAYS (2-5): ---5 Range: Any combination of Relays 2 to 5 LOW FWD POWER ALARM LEVEL: 0.05 x Rated MW Range: 0.02 to 0.99 × Rated MW in steps of 0.01 LOW FWD POWER ALARM DELAY: 10.0 s Range: 0.2 to 120.
4 SETPOINTS 4.9 S8 RTD TEMPERATURE 4.9S8 RTD TEMPERATURE 4.9.
4.9 S8 RTD TEMPERATURE 4 SETPOINTS 4.9.2 RTDS 1 TO 6 PATH: SETPOINTS ÖØ S8 RTD TEMPERATURE ÖØ RTD #1(6) ð RTD #1 [ENTER] for more ENTER ð RTD #1 APPLICATION: Range: Stator, Bearing, Ambient, Other, None ESCAPE Stator ESCAPE RTD #1 NAME: Range: 8 alphanumeric characters RTD #1 ALARM: Off Range: Off, Latched, Unlatched ASSIGN ALARM RELAYS (2-5): ---5 Range: Any combination of Relays 2 to 5.
4 SETPOINTS 4.9 S8 RTD TEMPERATURE 4.9.3 RTDS 7 TO 10 PATH: SETPOINTS ÖØ S8 RTD TEMPERATURE ÖØ RTD #7(10) ð RTD #7 [ENTER] for more ENTER ð RTD #7 APPLICATION: Range: Stator, Bearing, Ambient, Other, None ESCAPE Bearing ESCAPE RTD #7 NAME: Range: 8 alphanumeric characters RTD #7 ALARM: Off Range: Off, Latched, Unlatched ASSIGN ALARM RELAYS (2-5): ---5 Range: Any combination of Relays 2 to 5.
4.9 S8 RTD TEMPERATURE 4 SETPOINTS 4.9.4 RTD 11 PATH: SETPOINTS ÖØ S8 RTD TEMPERATURE ÖØ RTD #11 ð RTD #11 [ENTER] for more ENTER ð RTD #11 APPLICATION: Range: Stator, Bearing, Ambient, Other, None ESCAPE Other ESCAPE RTD #11 NAME: Range: 8 alphanumeric characters RTD #11 ALARM: Off Range: Off, Latched, Unlatched ASSIGN ALARM RELAYS (2-5): ---5 Range: Any combination of Relays 2 to 5.
4 SETPOINTS 4.9 S8 RTD TEMPERATURE 4.9.5 RTD 12 PATH: SETPOINTS ÖØ S8 RTD TEMPERATURE ÖØ RTD #12 ð RTD #12 [ENTER] for more ENTER ð RTD #12 APPLICATION: Range: Stator, Bearing, Ambient, Other, None ESCAPE Ambient ESCAPE RTD #12 NAME: Range: 8 alphanumeric characters RTD #12 ALARM: Off Range: Off, Latched, Unlatched ASSIGN ALARM RELAYS (2-5): ---5 Range: Any combination of Relays 2 to 5.
4.9 S8 RTD TEMPERATURE 4 SETPOINTS 4.9.6 OPEN RTD SENSOR SETPOINTS ÖØ S8 RTD TEMPERATURE ÖØ OPEN RTD SENSOR ð OPEN RTD SENSOR [ENTER] for more ENTER ð OPEN RTD SENSOR: Range: Off, Latched, Unlatched ESCAPE Off ESCAPE ASSIGN ALARM RELAYS (2-5): ---5 Range: Any combination of Relays 2 to 5 OPEN RTD SENSOR ALARM EVENTS: Off Range: On, Off MESSAGE ESCAPE MESSAGE The 489 has an Open RTD Sensor Alarm.
4 SETPOINTS 4.10 S9 THERMAL MODEL 4.10S9 THERMAL MODEL 4.10.1 489 THERMAL MODEL The thermal model of the 489 is primarily intended for induction generators, especially those that start on the system bus in the same manner as induction motors. However, some of the thermal model features may be used to model the heating that occurs in synchronous generators during overload conditions. One of the principle enemies of generator life is heat.
4.10 S9 THERMAL MODEL 4 SETPOINTS 4.10.2 MODEL SETUP a) DESCRIPTION PATH: SETPOINTS ÖØ S9 THERMAL MODEL Ö MODEL SETUP ð MODEL SETUP [ENTER] for more ENTER Range: No, Yes MODEL: No ESCAPE OVERLOAD PICKUP LEVEL: 1.01 x FLA Range: 1.01 to 1.25 × FLA in steps of 0.01 UNBALANCE BIAS K FACTOR Range: 0 to 12 in steps of 1 A value of "0" effectively defeats this feature COOL TIME CONSTANT ONLINE: 15 min. Range: 0 to 500 min. in steps of 1 COOL TIME CONSTANT OFFLINE: 30 min. Range: 0 to 500 min.
4 SETPOINTS 4.10 S9 THERMAL MODEL ESCAPE MESSAGE ACCEL. INTERSECT @ 100% VOLT: 5.00 x FLA Range: 2.00 to STALL CURRENT @ 100% VOLTAGE in steps of 0.01. Seen only if SELECT CURVE STYLE is "Voltage Dependent" The current measured at the output CTs is used for the thermal model.
4.10 S9 THERMAL MODEL 4 SETPOINTS 100000 10000 TIME IN SECONDS 4 1000 100 x15 10 x1 1.00 0.10 1.00 10 100 MULTIPLE OF FULL LOAD AMPS 1000 806804A5.
4 SETPOINTS 4.10 S9 THERMAL MODEL Table 4–7: 489 STANDARD OVERLOAD CURVE MULTIPLIERS PICKUP LEVEL STANDARD CURVE MULTIPLIERS ×1 ×2 ×3 ×4 ×5 ×6 ×7 ×8 ×9 × 10 × 11 × 12 × 13 × 14 × 15 13061 17414 21768 26122 30475 34829 39183 43536 47890 52243 56597 60951 65304 1.01 4353.6 8707.2 1.05 853.71 1707.4 2561.1 3414.9 4268.6 5122.3 5976.0 6829.7 7683.4 8537.1 9390.8 10245 11098 11952 12806 1.10 416.68 833.36 1250.0 1666.7 2083.4 2500.1 2916.8 3333.5 3750.1 4166.
4.10 S9 THERMAL MODEL 4 SETPOINTS b) CUSTOM OVERLOAD CURVE If the induction generator starting current begins to infringe on the thermal damage curves, it may become necessary to use a custom curve to tailor generator protection so successful starting may be possible without compromising protection. Furthermore, the characteristics of the starting thermal (locked rotor and acceleration) and the running thermal damage curves may not fit together very smoothly.
4 SETPOINTS 4.10 S9 THERMAL MODEL c) VOLTAGE DEPENDENT OVERLOAD CURVE It is possible and acceptable that the acceleration time exceeds the safe stall time (bearing in mind that a locked rotor condition is quite different than an acceleration condition). In this instance, each distinct portion of the thermal limit curve must be known and protection coordinated against that curve.
4.10 S9 THERMAL MODEL 4 SETPOINTS To illustrate the Voltage Dependent Overload Curve feature, the thermal limits shown in Figure 4–13: Thermal Limits for High Inertial Load on page 4–61 will be used. 1. Construct a custom curve for the running overload thermal limit. If the curve does not extend to the acceleration thermal limits, extend it such that the curve intersects the acceleration thermal limit curves. (see CUSTOM CURVE below). 2.
4 SETPOINTS 4.10 S9 THERMAL MODEL The 489 takes the information provided and create protection curves for any voltage between the minimum and 100%. For values above the voltage in question, the 489 extrapolates the safe stall protection curve to 110% voltage. This current level is calculated by taking the locked rotor current at 100% voltage and multiplying by 1.10. For trip times above the 110% current level, the trip time of 110% will be used (see the figure below).
4.10 S9 THERMAL MODEL 4 SETPOINTS The following curves illustrate the resultant overload protection for 80% and 100% voltage, respectively. For voltages inbetween these levels, the 489 shifts the acceleration curve linearly and constantly based upon the measured voltage during generator start.
4 SETPOINTS 4.10 S9 THERMAL MODEL d) UNBALANCE BIAS Unbalanced phase currents will cause additional rotor heating that will not be accounted for by electromechanical relays and may not be accounted for in some electronic protective relays. When the generator is running, the rotor will rotate in the direction of the positive sequence current at near synchronous speed.
4.10 S9 THERMAL MODEL 4 SETPOINTS e) MACHINE COOLING The 489 thermal capacity used value is reduced exponentially when the motor current is below the OVERLOAD PICKUP setpoint. This reduction simulates machine cooling. The cooling time constants should be entered for both stopped and running cases (the generator is assumed to be running if current is measured or the generator is offline). A machine with a stopped rotor normally cools significantly slower than one with a turning rotor.
4 SETPOINTS 4.10 S9 THERMAL MODEL f) HOT/COLD CURVE RATIO When thermal limit information is available for both a hot and cold machine, the 489 thermal model will adapt for the conditions if the HOT/COLD CURVE RATIO is programmed. The value entered for this setpoint dictates the level of thermal capacity used that the relay will settle at for levels of current that are below the OVERLOAD PICKUP LEVEL.
4.10 S9 THERMAL MODEL 4 SETPOINTS It should be noted that the RTD bias feature alone cannot create a trip. If the RTD bias feature forces the thermal capacity used to 100%, the machine current must be above the over-load pickup before an overload trip occurs. Presumably, the machine would trip on stator RTD temperature at that time. RTD Bias Maximum RTD Thermal Capacity Used 100 Hot/Cold = 0.
4 SETPOINTS 4.11 S10 MONITORING 4.11S10 MONITORING 4.11.
4.11 S10 MONITORING 4 SETPOINTS 4.11.
4 SETPOINTS 4.11 S10 MONITORING 4.11.
4.11 S10 MONITORING 4 SETPOINTS 4.11.5 CURRENT, MW, MVAR, AND MVA DEMAND PATH: SETPOINTS ÖØ S10 MONITORING ÖØ CURRENT DEMAND... ð CURRENT DEMAND [ENTER] for more ENTER ESCAPE CURRENT DEMAND ALARM: Off Range: Off, Latched, Unlatched ASSIGN ALARM RELAYS (2-5): ---5 Range: Any combination of Relays 2 to 5 CURRENT DEMAND LIMIT: 1.25 x FLA Range: 0.10 to 20.00 × FLA in steps of 0.
4 SETPOINTS 4.11 S10 MONITORING The 489 can measure the demand of the generator for several parameters (current, MW, Mvar, MVA). The demand values of generators may be of interest for energy management programs where processes may be altered or scheduled to reduce overall demand on a feeder.
4.11 S10 MONITORING 4 SETPOINTS 4.11.6 PULSE OUTPUT PATH: SETPOINTS ÖØ S10 MONITORING ÖØ PULSE OUTPUT ð PULSE OUTPUT [ENTER] for more ENTER Range: Any combination of Relays 2 to 5 RELAYS (2-5): ---- ESCAPE POS. kWh PULSE OUT INTERVAL: 10 kWh Range: 1 to 50000 kWh in steps of 1 POS. kvarh PULSE OUT RELAYS (2-5): ---- Range: Any combination of Relays 2 to 5 POS. kvarh PULSE OUT INTERVAL: 10 kvarh Range: 1 to 50000 kvarh in steps of 1 NEG.
4 SETPOINTS 4.12 S11 ANALOG I/O 4.12S11 ANALOG I/O 4.12.1 ANALOG OUTPUTS 1 TO 4 PATH: SETPOINTS ÖØ S11 ANALOG I/O Ö ANALOG OUTPUT 1(4) ð ANALOG OUTPUT 1 [ENTER] for more ENTER ESCAPE REAL POWER (MW) MIN: 0.00 x Rated Range: 0.00 to 2.00 × Rated in steps of 0.01 REAL POWER (MW) MAX: 1.25 x Rated Range: 0.00 to 2.00 × Rated in steps of 0.01 ESCAPE MESSAGE ENTER Range: See Table 4–8: Analog Output Parameter Selection on page 4–76. Apparent Power (MVA) ESCAPE APPARENT POWER (MVA) MIN: 0.
4.12 S11 ANALOG I/O 4 SETPOINTS Table 4–8: ANALOG OUTPUT PARAMETER SELECTION PARAMETER NAME RANGE / UNITS DEFAULT MIN. MAX IA Output Current 0.00 to 20.00 × FLA 0.01 0.00 1.25 IB Output Current 0.00 to 20.00 × FLA 0.01 0.00 1.25 IC Output Current 0.00 to 20.00 × FLA 0.01 0.00 1.25 Avg. Output Current 0.00 to 20.00 × FLA 0.01 0.00 1.25 Neg. Seq. Current Averaged Gen. Load 0 to 2000% FLA 1 0 100 0.00 to 20.00 × FLA 0.01 0.00 1.
4 SETPOINTS 4.
4.13 S12 TESTING 4 SETPOINTS 4.13S12 TESTING 4.13.1 SIMULATION MODE PATH: SETPOINTS ÖØ S12 TESTING Ö SIMULATION MODE ð SIMULATION MODE [ENTER] for more ENTER ESCAPE ESCAPE MESSAGE ð SIMULATION MODE: Off PRE-FAULT TO FAULT TIME DELAY: 15 s Range: Off, Simulate Pre-Fault, Simulate Fault, Pre-Fault to Fault Range: 0 to 300 s in steps of 1 The 489 may be placed in several simulation modes. This simulation may be useful for several purposes.
4 SETPOINTS 4.13 S12 TESTING 4.13.2 PRE-FAULT SETUP PATH: SETPOINTS ÖØ S12 TESTING ÖØ PRE-FAULT SETUP ð PRE-FAULT SETUP [ENTER] for more ENTER ð PRE-FAULT Iphase Range: 0.00 to 20.00 × CT in steps of 0.01 ESCAPE OUTPUT: 0.00 x CT ESCAPE PRE-FAULT VOLTAGES PHASE-N: 1.00 x Rated Range: 0.00 to 1.50 × Rated in steps of 0.01 Entered as a phase-to-neutral quantity. PRE-FAULT CURRENT LAGS VOLTAGE: 0° Range: 0 to 359° in steps of 1 PRE-FAULT Iphase NEUTRAL: 0.00 x CT Range: 0.00 to 20.
4.13 S12 TESTING 4 SETPOINTS 4.13.3 FAULT SETUP PATH: SETPOINTS ÖØ S12 TESTING ÖØ FAULT SETUP ð FAULT SETUP [ENTER] for more ENTER OUTPUT: 0.00 x CT ESCAPE FAULT VOLTAGES PHASE-N: 1.00 x Rated Range: 0.00 to 1.50 × Rated in steps of 0.01 Entered as a phase-to-neutral quantity. FAULT CURRENT LAGS VOLTAGE: Range: 0 to 359° in steps of 1 MESSAGE ESCAPE MESSAGE ESCAPE MESSAGE ESCAPE MESSAGE ESCAPE MESSAGE 4 Range: 0.00 to 20.00 × CT in steps of 0.
4 SETPOINTS 4.13 S12 TESTING 4.13.4 TEST OUTPUT RELAYS PATH: SETPOINTS ÖØ S12 TESTING ÖØ TEST OUTPUT RELAYS ð TEST OUTPUT RELAYS [ENTER] for more ENTER ESCAPE ð FORCE OPERATION OF RELAYS: Disabled Range: Disabled, R1 Trip, R2 Auxiliary, R3 Auxiliary, R4 Auxiliary, R5 Alarm, R6 Service, All Relays, No Relays The test output relays setpoint may be used during startup or testing to verify that the output relays are functioning correctly.
4.13 S12 TESTING 4 SETPOINTS 4.13.6 COMM PORT MONITOR PATH: SETPOINTS ÖØ S12 TESTING ÖØ COMM PORT MONITOR ð COMM PORT MONITOR [ENTER] for more ENTER ð MONITOR COMM. PORT: Range: Computer RS485, Auxiliary RS485, Front Panel RS232 ESCAPE Computer RS485 ESCAPE CLEAR COMM. BUFFERS: No Range: No, Yes LAST Rx BUFFER: Received OK Range: Buffer Cleared, Received OK, Wrong Slave Addr., Illegal Function, Illegal Count, Illegal Reg. Addr.
5 ACTUAL VALUES 5.1 OVERVIEW 5 ACTUAL VALUES 5.1OVERVIEW 5.1.1 ACTUAL VALUES MESSAGES Measured values, maintenance and fault analysis information are accessed in the Actual Value mode. Actual values may be accessed via one of the following methods: 1. Front panel, using the keys and display. 2. Front program port, and a portable computer running the 489PC software supplied with the relay. 3. Rear terminal RS485 port, and a PLC/SCADA system running user-written software.
5.1 OVERVIEW ð A3 ACTUAL VALUES LEARNED DATA 5 ACTUAL VALUES ENTER ð ESCAPE ESCAPE MESSAGE ESCAPE MESSAGE PARAMETER AVERAGES [ENTER] for more See page 5–18. RTD MAXIMUMS [ENTER] for more See page 5–18. ANALOG IN MIN/MAX [ENTER] for more See page 5–19. TRIP COUNTERS [ENTER] for more See page 5–20. GENERAL COUNTERS [ENTER] for more See page 5–22. TIMERS [ENTER] for more See page 5–22. [ENTER] EVENT 01 [ENTER] for more See page 5–23.
5 ACTUAL VALUES 5.2 A1 STATUS 5.2A1 STATUS 5.2.1 GENERATOR STATUS PATH: ACTUAL VALUES Ö A1 STATUS Ö GENERATOR STATUS ð GENERATOR STATUS [ENTER] for more ENTER ð GENERATOR STATUS: Range: Online, Offline, Tripped ESCAPE Offline ESCAPE GENERATOR THERMAL CAPACITY USED: 0% Range: 0 to 100% Seen only if the Thermal Model is enabled ESTIMATED TRIP TIME ON OVERLOAD: Never Range: 0 to 10000 sec.
5.2 A1 STATUS 5 ACTUAL VALUES ESCAPE MESSAGE ESCAPE MESSAGE ESCAPE MESSAGE ESCAPE MESSAGE ESCAPE MESSAGE ESCAPE MESSAGE ESCAPE MESSAGE ESCAPE MESSAGE ESCAPE MESSAGE ESCAPE 5 MESSAGE ESCAPE MESSAGE ESCAPE MESSAGE ESCAPE MESSAGE NEUTRAL VOLT (3rd) PRETRIP: 0.0 V Range: 0.0 to 25000.0 V Seen only if there transformer. REAL POWER (MW) PRETRIP: 0.000 Range: 0.000 to ±2000.000 MW Not seen if VT CONNECTION is "None" REACTIVE POWER Mvar PRETRIP: 0.00 Hz Range: 0.000 to ±2000.
5 ACTUAL VALUES 5.
5.2 A1 STATUS 5 ACTUAL VALUES ESCAPE MESSAGE ESCAPE MESSAGE ESCAPE MESSAGE ESCAPE MESSAGE ESCAPE MESSAGE ESCAPE MESSAGE ESCAPE MESSAGE ESCAPE MESSAGE ESCAPE MESSAGE ESCAPE 5 MESSAGE ESCAPE MESSAGE ESCAPE MESSAGE ESCAPE MESSAGE ESCAPE MESSAGE ESCAPE MESSAGE ESCAPE MESSAGE ESCAPE MESSAGE THERMAL MODEL ALARM: 100% TC USED Range: 1 to 100% The thermal capacity used is shown here. TRIP COUNTER ALARM: 25 Trips Range: 1 to 10000 The number of generator trips is shown here.
5 ACTUAL VALUES 5.
5.2 A1 STATUS 5 ACTUAL VALUES ESCAPE MESSAGE ESCAPE MESSAGE ESCAPE MESSAGE ESCAPE MESSAGE ESCAPE MESSAGE ESCAPE MESSAGE ESCAPE MESSAGE ESCAPE MESSAGE ESCAPE MESSAGE ESCAPE 5 MESSAGE ESCAPE MESSAGE ESCAPE MESSAGE ESCAPE MESSAGE ESCAPE MESSAGE ESCAPE MESSAGE ESCAPE MESSAGE ESCAPE MESSAGE ESCAPE MESSAGE ESCAPE MESSAGE ESCAPE MESSAGE ESCAPE MESSAGE ESCAPE MESSAGE 5-8 NEUTRAL O/V (FUND) PICKUP: Not Enabled Range: Not Enabled, Inactive, Timing Out, Active Trip, Latched Trip.
5 ACTUAL VALUES 5.2 A1 STATUS ESCAPE MESSAGE ESCAPE MESSAGE ESCAPE MESSAGE ESCAPE MESSAGE ANALOG I/P 1 PICKUP: Not Enabled Range: Not Enabled, Inactive, Timing Out, Active Trip, Latched Trip. Reflects programmed Analog Input Name. Seen only if input is enabled.
5.2 A1 STATUS 5 ACTUAL VALUES ESCAPE MESSAGE ESCAPE MESSAGE ESCAPE MESSAGE ESCAPE MESSAGE ESCAPE MESSAGE ESCAPE MESSAGE ESCAPE MESSAGE ESCAPE MESSAGE ESCAPE MESSAGE ESCAPE 5 MESSAGE ESCAPE MESSAGE ESCAPE MESSAGE ESCAPE MESSAGE ESCAPE MESSAGE ESCAPE MESSAGE ESCAPE MESSAGE ESCAPE MESSAGE ESCAPE MESSAGE ESCAPE MESSAGE ESCAPE MESSAGE ESCAPE MESSAGE ESCAPE MESSAGE 5-10 UNDERVOLTAGE PICKUP: Not Enabled Range: Not Enabled, Inactive, Timing Out, Active Alarm, Latched Alarm.
5 ACTUAL VALUES 5.2 A1 STATUS ESCAPE MESSAGE ESCAPE MESSAGE ESCAPE MESSAGE ESCAPE MESSAGE ESCAPE MESSAGE ESCAPE MESSAGE ESCAPE MESSAGE ESCAPE MESSAGE ESCAPE MESSAGE ESCAPE MESSAGE ESCAPE MESSAGE ESCAPE MESSAGE ESCAPE MESSAGE ESCAPE MESSAGE ESCAPE MESSAGE OPEN SENSOR PICKUP: Not Enabled Range: Not Enabled, Inactive, Timing Out, Active Alarm, Latched Alarm. SHORT/LOW TEMP PICKUP: Not Enabled Range: Not Enabled, Inactive, Timing Out, Active Alarm, Latched Alarm.
5.2 A1 STATUS 5 ACTUAL VALUES 5.2.
5 ACTUAL VALUES 5.3 A2 METERING DATA 5.3A2 METERING DATA 5.3.1 CURRENT METERING PATH: ACTUAL VALUES ÖØ A2 METERING DATA Ö CURRENT METERING ð CURRENT METERING [ENTER] for more Range: 0 to 999999 A ð A: ESCAPE C: 0 0 B: Amps ESCAPE a: c: 0 0 b: 0 Neut. Amps Range: 0 to 999999 A a: c: 0 0 b: 0 Diff.
5.3 A2 METERING DATA 5 ACTUAL VALUES 5.3.
5 ACTUAL VALUES 5.3 A2 METERING DATA 5.3.3 POWER METERING PATH: ACTUAL VALUES ÖØ A2 METERING DATA ÖØ POWER METERING ð POWER METERING [ENTER] for more ENTER ð POWER FACTOR: Range: 0.01 to 0.99 Lead or Lag, 0.00, 1.00 ESCAPE 0.00 ESCAPE REAL POWER: 0.000 MW Range: 0.000 to ±2000.000 MW REACTIVE POWER: 0.000 Mvar Range: 0.000 to ±2000.000 Mvar APPARENT POWER: 0.000 MVA Range: 0.000 to 2000.000 MVA POSITIVE WATTHOURS: 0.000 MWh Range: 0.000 to 4000000.000 MWh POSITIVE VARHOURS: 0.
5.3 A2 METERING DATA 5 ACTUAL VALUES 5.3.4 TEMPERATURE PATH: ACTUAL VALUES ÖØ A2 METERING DATA ÖØ TEMPERATURE ð TEMPERATURE [ENTER] for more ENTER Range: –50 to 250°C, No RTD Seen only if at least 1 RTD programmed as Stator RTD#1: 40°C ESCAPE RTD #1 TEMPERATURE: 40°C Range: –50 to 250°C, No RTD. Not seen if RTD programmed as None.
5 ACTUAL VALUES 5.3 A2 METERING DATA 5.3.5 DEMAND METERING PATH: ACTUAL VALUES ÖØ A2 METERING DATA ÖØ DEMAND METERING ð DEMAND METERING [ENTER] for more ENTER ð CURRENT Range: 0 to 999999 A ESCAPE DEMAND: 0 Amps ESCAPE MW DEMAND: 0.000 MW Range: 0.000 to 2000.000 MW. Not seen if VT CONNECTION TYPE is programmed as None Mvar DEMAND: 0.000 Mvar Range: 0.000 to 2000.000 Mvar. Not seen if VT CONNECTION TYPE is programmed as None MVA DEMAND: 0.000 MVA Range: 0.000 to 2000.000 MVA.
5.4 A3 LEARNED DATA 5 ACTUAL VALUES 5.4A3 LEARNED DATA 5.4.1 PARAMETER AVERAGES PATH: ACTUAL VALUES ÖØ A3 LEARNED DATA Ö PARAMETER AVERAGES ð PARAMETER AVERAGES [ENTER] for more ð AVERAGE GENERATOR Range: 0 to 2000% FLA ESCAPE LOAD: 100% FLA ESCAPE AVERAGE NEG. SEQ. CURRENT: 0% FLA Range: 0 to 2000% FLA AVERAGE PHASE-PHASE VOLTAGE: 0 V Range: 0 to 50000 V.
5 ACTUAL VALUES 5.4 A3 LEARNED DATA 5.4.3 ANALOG INPUT MINIMUM/MAXIMUM PATH: ACTUAL VALUES ÖØ A3 LEARNED DATA ÖØ ANALOG IN MIN/MAX ð ANALOG IN MIN/MAX [ENTER] for more ENTER ð ANALOG I/P 1 Range: –50000 to 50000. Not seen if Analog Input is programmed as None. Message reflects Analog Input Name as programmed.
5.5 A4 MAINTENANCE 5 ACTUAL VALUES 5.5A4 MAINTENANCE 5.5.1 TRIP COUNTERS PATH: ACTUAL VALUES ÖØ A4 MAINTENANCE Ö TRIP COUNTERS ð TRIP COUNTERS [ENTER] for more ENTER ESCAPE DIGITAL INPUT TRIPS: 0 Range: 0 to 50000 Caused by the General Input Trip feature SEQUENTIAL TRIPS: 0 Range: 0 to 50000 FIELD-BKR DISCREP. TRIPS: 0 Range: 0 to 50000 TACHOMETER TRIPS: 0 Range: 0 to 50000 OFFLINE OVERCURRENT TRIPS: 0 Range: 0 to 50000 PHASE OVERCURRENT TRIPS: 0 Range: 0 to 50000 NEG. SEQ.
5 ACTUAL VALUES 5.
5.5 A4 MAINTENANCE 5 ACTUAL VALUES 5.5.2 GENERAL COUNTERS PATH: ACTUAL VALUES ÖØ A4 MAINTENANCE ÖØ GENERAL COUNTERS ð GENERAL COUNTERS [ENTER] for more ENTER ESCAPE ESCAPE MESSAGE Range: 0 to 50000 ð NUMBER OF BREAKER OPERATIONS: 0 Range: 0 to 50000. Seen only if a digital input is assigned to Thermal Reset. NUMBER OF THERMAL RESETS: 0 One of the 489 general counters will count the number of breaker operations over time. This may be useful information for breaker maintenance.
5 ACTUAL VALUES 5.6 A5 EVENT RECORDER 5.6A5 EVENT RECORDER 5.6.1 EVENT RECORDER PATH: ACTUAL VALUES ÖØ A5 EVENT RECORDER ÖØ [ENTER] EVENT01(40) ð [ENTER] EVENT01 No Event ð TIME OF EVENT01: ESCAPE 00:00:00.0 Range: hour:minutes:seconds Seen only if there has been an event. ESCAPE DATE OF EVENT01: Jan. 01, 1992 Range: month day, year Seen only if there has been an event. ACTIVE GROUP EVENT01: 1 Range: 1, 2 TACHOMETER EVENT01: 3600 RPM Range: 0 to 3600 RPM.
5.6 A5 EVENT RECORDER 5 ACTUAL VALUES ESCAPE MESSAGE ESCAPE MESSAGE ESCAPE MESSAGE ANALOG INPUT 2 EVENT01: 0.0 Units Range: –50000 to 50000 Seen only if the Analog Input is in use. ANALOG INPUT 3 EVENT01: 0.0 Units Range: –50000 to 50000 Seen only if the Analog Input is in use. ANALOG INPUT 4 EVENT01: 0.0 Units Range: –50000 to 50000 Seen only if the Analog Input is in use. The 489 Event Recorder stores generator and system information each time an event occurs.
5 ACTUAL VALUES 5.7 A6 PRODUCT INFO 5.7A6 PRODUCT INFO 5.7.1 489 MODEL INFO PATH: ACTUAL VALUES ÖØ A6 PRODUCT INFO Ö 489 MODEL INFO ð 489 MODEL INFO [ENTER] for more ENTER ð ORDER CODE: Range: N/A ESCAPE 489-P5-HI-A20 ESCAPE 489 SERIAL NO: A3260001 Range: N/A 489 REVISION: 32E100A4.000 Range: N/A 489 BOOT REVISION: 32E100A0.000 Range: N/A MESSAGE ESCAPE MESSAGE ESCAPE MESSAGE All of the 489 model information may be viewed here when the unit is powered up.
5.8 DIAGNOSTICS 5 ACTUAL VALUES 5.8DIAGNOSTICS 5.8.1 DIAGNOSTIC MESSAGES In the event of a trip or alarm, some of the actual value messages are very helpful in diagnosing the cause of the condition. The 489 will automatically default to the most important message. The hierarchy is trip and pretrip messages, then alarm messages. In order to simplify things for the operator, the Message LED (indicator) will flash prompting the operator to press the NEXT key.
5 ACTUAL VALUES 5.8 DIAGNOSTICS 5.8.2 FLASH MESSAGES Flash messages are warning, error, or general information messages that are temporarily displayed in response to certain key presses. These messages are intended to assist with navigation of the 489 messages by explaining what has happened or by prompting the user to perform certain actions. Table 5–2: FLASH MESSAGES NEW SETPOINT HAS BEEN STORED ROUNDED SETPOINT HAS BEEN STORED OUT OF RANGE.
5.8 DIAGNOSTICS 5 ACTUAL VALUES • SETPOINT ACCESS IS NOW RESTRICTED: If the passcode security feature is enabled and a valid passcode entered, this message appears when the S1 489 SETUP Ö PASSCODE ÖØ SETPOINT ACCESS setpoint is altered to "Restricted". This message also appears any time that setpoint access is permitted and the access jumper is removed.
5 ACTUAL VALUES 5.8 DIAGNOSTICS • TOP OF LIST: This message will indicate when the top of subgroup has been reached. • END OF LIST: This message will indicate when the bottom of a subgroup has been reached. • NO ALARMS ACTIVE: If an attempt is made to enter the Alarm Status message subgroup, but there are no active alarms, this message will appear.
5.
6 COMMUNICATIONS 6.1 MODBUS PROTOCOL 6 COMMUNICATIONS 6.1MODBUS PROTOCOL 6.1.1 ELECTRICAL INTERFACE The hardware or electrical interface is one of the following: one of two 2-wire RS485 ports from the rear terminal connector or the RS232 from the front panel connector. In a 2-wire RS485 link, data flow is bidirectional. Data flow is half-duplex for both the RS485 and the RS232 ports. That is, data is never transmitted and received at the same time.
6.1 MODBUS PROTOCOL 6 COMMUNICATIONS • DATA BYTES: This is a variable number of bytes depending on the Function Code. These may be actual values, setpoints, or addresses sent by the master to the slave or vice-versa. Data is sent MSByte first followed by the LSByte. • CRC: This is a two byte error checking code. CRC is sent LSByte first followed by the MSByte. The RTU version of Modbus includes a two byte CRC-16 (16-bit cyclic redundancy check) with every transmission.
6 COMMUNICATIONS 6.2 MODBUS FUNCTIONS 6.2MODBUS FUNCTIONS 6.2.
6.2 MODBUS FUNCTIONS 6 COMMUNICATIONS 6.2.3 FUNCTION CODE 05: EXECUTE OPERATION Modbus Implementation: 489 Implementation: Force Single Coil Execute Operation This function code allows the master to request specific 489 command operations. The command numbers listed in the Commands area of the memory map correspond to operation code for function code 05. The operation commands can also be initiated by writing to the Commands area of the memory map using function code 16. Refer to Section 6.2.
6 COMMUNICATIONS 6.2 MODBUS FUNCTIONS 6.2.5 FUNCTION CODE 07: READ DEVICE STATUS Modbus Implementation: 489 Implementation: Read Exception Status Read Device Status This function reads the selected device status. A short message length allows for rapid reading of status. The returned status byte has individual bits set to 1 or 0 depending on the slave device status. The 489 general status byte is shown below: BIT NO.
6.2 MODBUS FUNCTIONS 6 COMMUNICATIONS 6.2.7 FUNCTION CODE 16: STORE MULTIPLE SETPOINTS Modbus Implementation: 489 Implementation: Preset Multiple Registers Store Multiple Setpoints This function code allows multiple Setpoints to be stored into the 489 memory. Modbus "registers" are 16-bit (two byte) values transmitted high order byte first. Thus all 489 setpoints are sent as two bytes. The maximum number of Setpoints that can be stored in one transmission is dependent on the slave device.
6 COMMUNICATIONS 6.2 MODBUS FUNCTIONS 6.2.8 FUNCTION CODE 16: PERFORMING COMMANDS Some PLCs may not support execution of commands using function code 5 but do support storing multiple setpoints using function code 16. To perform this operation using function code 16 (10H), a certain sequence of commands must be written at the same time to the 489. The sequence consists of: Command Function register, Command operation register and Command Data (if required).
6.3 MODBUS MEMORY MAP 6 COMMUNICATIONS 6.3MODBUS MEMORY MAP 6.3.1 MEMORY MAP INFORMATION The data stored in the 489 is grouped as Setpoints and Actual Values. Setpoints can be read and written by a master computer. Actual Values are read only. All Setpoints and Actual Values are stored as two byte values. That is, each register address is the address of a two-byte value. Addresses are listed in hexadecimal. Data values (Setpoint ranges, increments, and factory values) are in decimal.
6 COMMUNICATIONS 6.3 MODBUS MEMORY MAP 6.3.4 WAVEFORM CAPTURE The 489 stores up to 64 cycles of A/D samples in a waveform capture buffer each time a trip occurs. The waveform capture buffer is time and date stamped and may therefore be correlated to a trip in the event record. To access the waveform capture memory, select the channel of interest by writing the number to the Waveform Capture Channel Selector (30F5h).
6.3 MODBUS MEMORY MAP 6 COMMUNICATIONS 6.3.
6 COMMUNICATIONS 6.
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6 COMMUNICATIONS 6.
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6 COMMUNICATIONS 6.3 MODBUS MEMORY MAP Table 6–1: 489 MEMORY MAP (SHEET 6 OF 24) ADDR NAME 0706 ANALOG INPUT 2 MAXIMUM 0708 ANALOG INPUT 3 MINIMUM 070A ANALOG INPUT 3 MAXIMUM 070C ANALOG INPUT 4 MINIMUM 070E ANALOG INPUT 4 MAXIMUM MAINTENANCE / TRIP COUNTERS 077F TRIP COUNTERS LAST CLEARED (DATE) 0781 TOTAL NUMBER OF TRIPS 0782 DIGITAL INPUT TRIPS 0783 SEQUENTIAL TRIPS 0784 FIELD-BKR DISCREP. TRIPS 0785 TACHOMETER TRIPS 0786 OFFLINE OVERCURRENT TRIPS 0787 PHASE OVERCURRENT TRIPS 0788 NEG.SEQ.
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6 COMMUNICATIONS 6.
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6 COMMUNICATIONS 6.3 MODBUS MEMORY MAP Table 6–1: 489 MEMORY MAP (SHEET 10 OF 24) ADDR NAME DIGITAL INPUTS / WAVEFORM CAPTURE 13C0 ASSIGN DIGITAL INPUT DIGITAL INPUTS / GND.
6.3 MODBUS MEMORY MAP 6 COMMUNICATIONS Table 6–1: 489 MEMORY MAP (SHEET 11 OF 24) 6 ADDR NAME 1624 FLEXCURVE TRIP TIME AT 4.00 × PU 1625 FLEXCURVE TRIP TIME AT 4.10 × PU 1626 FLEXCURVE TRIP TIME AT 4.20 × PU 1627 FLEXCURVE TRIP TIME AT 4.30 × PU 1628 FLEXCURVE TRIP TIME AT 4.40 × PU 1629 FLEXCURVE TRIP TIME AT 4.50 × PU 162A FLEXCURVE TRIP TIME AT 4.60 × PU 162B FLEXCURVE TRIP TIME AT 4.70 × PU 162C FLEXCURVE TRIP TIME AT 4.80 × PU 162D FLEXCURVE TRIP TIME AT 4.90 × PU 162E FLEXCURVE TRIP TIME AT 5.
6 COMMUNICATIONS 6.3 MODBUS MEMORY MAP Table 6–1: 489 MEMORY MAP (SHEET 12 OF 24) ADDR NAME CURRENT ELEMENTS / GROUND O/C 1720 GROUND OVERCURRENT ALARM 1721 ASSIGN ALARM RELAYS (2-5) 1722 GROUND O/C ALARM PICKUP 1723 GROUND O/C ALARM DELAY 1724 GROUND OVERCURRENT ALARM EVENTS 1725 GROUND OVERCURRENT TRIP 1726 ASSIGN TRIP RELAYS (1-4) 1727 GROUND O/C TRIP PICKUP 1728 CURVE SHAPE 1729 FLEXCURVE TRIP TIME AT 1.03 × PU 172A FLEXCURVE TRIP TIME AT 1.05 × PU 172B FLEXCURVE TRIP TIME AT 1.
6.3 MODBUS MEMORY MAP 6 COMMUNICATIONS Table 6–1: 489 MEMORY MAP (SHEET 13 OF 24) 6 ADDR NAME 1761 FLEXCURVE TRIP TIME AT 8.50 × PU 1762 FLEXCURVE TRIP TIME AT 9.00 × PU 1763 FLEXCURVE TRIP TIME AT 9.50 × PU 1764 FLEXCURVE TRIP TIME AT 10.0 × PU 1765 FLEXCURVE TRIP TIME AT 10.5 × PU 1766 FLEXCURVE TRIP TIME AT 11.0 × PU 1767 FLEXCURVE TRIP TIME AT 11.5 × PU 1768 FLEXCURVE TRIP TIME AT 12.0 × PU 1769 FLEXCURVE TRIP TIME AT 12.5 × PU 176A FLEXCURVE TRIP TIME AT 13.0 × PU 176B FLEXCURVE TRIP TIME AT 13.
6 COMMUNICATIONS 6.
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6.3 MODBUS MEMORY MAP 6 COMMUNICATIONS Table 6–1: 489 MEMORY MAP (SHEET 19 OF 24) 6 ADDR NAME 2846 TIME TO TRIP AT 20.0 × FLA 2848 MINIMUM ALLOWABLE VOLTAGE 2849 STALL CURRENT @ MIN VOLTAGE 284A SAFE STALL TIME @ MIN VOLTAGE 284B ACCEL. INTERSECT @ MIN VOLT 284C STALL CURRENT @ 100% VOLTAGE 284D SAFE STALL TIME @ 100% VOLTAGE 284E ACCEL.
6 COMMUNICATIONS 6.3 MODBUS MEMORY MAP Table 6–1: 489 MEMORY MAP (SHEET 20 OF 24) ADDR NAME MONITORING / RUNNING HOUR SETUP 2AC0 INITIAL GEN. RUNNING HOUR 2AC2 GEN. RUNNING HOUR ALARM 2AC3 ASSIGN ALARM RELAYS (2-5) 2AC4 GEN.
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6 COMMUNICATIONS 6.
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6.3 MODBUS MEMORY MAP 6 COMMUNICATIONS 6.3.
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6 COMMUNICATIONS 6.4 DNP PROTOCOL 6.4DNP PROTOCOL 6.4.1 DEVICE PROFILE DOCUMENT DNP 3.0 DEVICE PROFILE DOCUMENT Vendor Name: General Electric Multilin Inc.
6.4 DNP PROTOCOL 6 COMMUNICATIONS DNP 3.
6 COMMUNICATIONS 6.4 DNP PROTOCOL 6.4.2 IMPLEMENTATION TABLE The table below gives a list of all objects recognized and returned by the relay. Additional information is provided on the following pages including a list of the default variations returned for each object and lists of defined point numbers for each object. Table 6–3: DNP IMPLEMENTATION TABLE OBJECT DESCRIPTION REQUEST FUNC. CODES RESPONSE OBJ VAR QUAL. CODES (HEX) FUNC. CODES QUAL.
6.4 DNP PROTOCOL 6 COMMUNICATIONS IMPLEMENTATION TABLE NOTES: 1. For this object, the quantity specified in the request must be exactly 1 as there is only one instance of this object defined in the relay. 2. All static data known to the relay is returned in response to a request for Class 0. This includes all objects of type 1 (Binary Input), type 10 (Binary Output), type 20 (Binary Counter), type 21 (Frozen Counter) and type 30 (Analog Input). 3.
6 COMMUNICATIONS 6.5 DNP POINT LISTS 6.5DNP POINT LISTS 6.5.
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6 COMMUNICATIONS 6.5 DNP POINT LISTS 6.5.2 BINARY / CONTROL RELAY OUTPUT BLOCK (OBJECTS 10/12) Table 6–6: BINARY OUTPUT POINT LIST INDEX DESCRIPTION 0 Reset 1 Generator Start 2 Generator Stop 3 Clear Trip Counters 4 Clear Last Trip Data 5 Clear MWh and Mvarh 6 Clear Peak Demand Data 7 Clear Generator Information 8 Clear Breaker Information The following restrictions should be noted when using object 12 to control the points listed in the above table. 1.
6.5 DNP POINT LISTS 6 COMMUNICATIONS 6.5.
6 COMMUNICATIONS 6.5 DNP POINT LISTS 6.5.4 ANALOG INPUT / INPUT CHANGE (OBJECTS 30/32) In the following table, the Format column indicates that the associated data point format is determined by the entry in Table 6–2: Data Formats on page 6–34. For example, an “F1” format is described in that table as a (16-bit) unsigned value without any decimal places. Therefore, the value read should be interpreted in this manner.
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6 COMMUNICATIONS 6.
6.5 DNP POINT LISTS 6 COMMUNICATIONS Table 6–8: ANALOG INPUTS POINT LIST (SHEET 4 OF 4) INDEX FORMAT DESCRIPTION EVENT CLASS ASSIGNED TO 250 F13 Positive kvarh Class 2 251 F13 Negative kvarh Class 2 252 F12 Generator Hours Online Class 2 NOTES TABLE NOTES: 6 1. Unless otherwise specified, an event object will be generated for a point if the current value of the point changes by an amount greater than or equal to two percent of its previous value. 2.
7 TESTING 7.1 TEST SETUP 7 TESTING 7.1TEST SETUP 7.1.1 DESCRIPTION The purpose of this testing description is to demonstrate the procedures necessary to perform a complete functional test of all the 489 hardware while also testing firmware/hardware interaction in the process. Since the 489 is packaged in a drawout case, a demo case (metal carry case in which the 489 may be mounted) may be useful for creating a portable test set with a wiring harness for all of the inputs and outputs.
7.1 TEST SETUP 7 TESTING 7.1.
7 TESTING 7.2 HARDWARE FUNCTIONAL TESTS 7.2HARDWARE FUNCTIONAL TESTS 7.2.1 OUTPUT CURRENT ACCURACY The specification for output and neutral end current input is ±0.5% of 2 × CT when the injected current is less than 2 × CT. Perform the steps below to verify accuracy. 1. Alter the following setpoint: S2 SYSTEM SETUP Ö CURRENT SENSING Ö PHASE CT PRIMARY: "1000 2. A" Measured values should be ±10 A. Inject the values shown in the table below and verify accuracy of the measured values.
7.2 HARDWARE FUNCTIONAL TESTS 7 TESTING 7.2.3 GROUND (1 A), NEUTRAL, AND DIFFERENTIAL CURRENT ACCURACY The specification for neutral, differential and 1 A ground current input accuracy is ±0.5% of 2 × CT. Perform the steps below to verify accuracy. 1.
7 TESTING 7.2 HARDWARE FUNCTIONAL TESTS 7.2.5 NEGATIVE SEQUENCE CURRENT ACCURACY The 489 measures negative sequence current as a percent of Full Load Amperes (FLA). A sample calculation of negative sequence current is shown below. Given the following generator parameters: Rated MVA (PA) = 1.04 Voltage Phase to Phase (Vpp): 600 V 6 PA 1.04 × 10 - = 1000 A we have: FLA = ---------------------- = -------------------------3 × 600 3 × V pp (EQ 7.
7.2 HARDWARE FUNCTIONAL TESTS 7 TESTING 7.2.6 RTD ACCURACY The specification for RTD input accuracy is ±2° for Platinum/Nickel and ±5° for Copper. Perform the steps below. 1. Alter the following setpoints: S8 RTD TEMPERATURE Ö RTD TYPE Ö STATOR RTD TYPE: "100 Ohm Platinum" (select desired S8 RTD TEMPERATURE ÖØ RTD #1 Ö RTD #1 APPLICATION: "Stator" (repeat for RTDs 2 to 12) Measured values should be ±2°C / ±4°F for platinum/nickel and ±5°C / ±9°F for copper.
7 TESTING 7.2 HARDWARE FUNCTIONAL TESTS 7.2.7 DIGITAL INPUTS AND TRIP COIL SUPERVISION The digital inputs and trip coil supervision can be verified easily with a simple switch or pushbutton. Verify the SWITCH +24 V DC with a voltmeter. Perform the steps below to verify functionality of the digital inputs. 1. Open switches of all of the digital inputs and the trip coil supervision circuit. 2. View the status of the digital inputs and trip coil supervision in: A1 STATUS ÖØ DIGITAL INPUTS 3.
7.2 HARDWARE FUNCTIONAL TESTS 7 TESTING 0 to 1 mA ANALOG INPUTS: 1. Alter the following setpoints: S11 ANALOG I/O ÖØ ANALOG INPUT1 Ö ANALOG INPUT1: "0-1 mA" S11 ANALOG I/O ÖØ ANALOG INPUT1 ÖØ ANALOG INPUT1 MINIMUM: "0" S11 ANALOG I/O ÖØ ANALOG INPUT1 ÖØ ANALOG INPUT1 MAXIMUM: "1000" (repeat for Analog Inputs 2 to 4) Analog output values should be ±0.01 mA on the ammeter. Measured analog input values should be ±10 units. Force the analog outputs using the following setpoints: 2.
7 TESTING 7.3 ADDITIONAL FUNCTIONAL TESTS 7.3ADDITIONAL FUNCTIONAL TESTS 7.3.1 OVERLOAD CURVE ACCURACY The specification for overload curve timing accuracy is ±100 ms or ±2% of time to trip. Pickup accuracy is as per the current inputs (±0.5% of 2 × CT when the injected current is less than 2 × CT and ±1% of 20 × CT when the injected current is equal to or greater than 2 × CT). Perform the steps below to verify accuracy. 1. Alter the following setpoints: S2 SYSTEM SETUP ÖØ GEN.
7.3 ADDITIONAL FUNCTIONAL TESTS 7 TESTING 7.3.2 POWER MEASUREMENT TEST The specification for reactive and apparent power is ± 1% of steps below to verify accuracy. 1. 3 × 2 × CT × VT × VTfull-scale at Iavg < 2 × CT. Perform the Alter the following setpoints: S2 SYSTEM SETUP Ö CURRENT SENSING Ö PHASE CT PRIMARY: "1000" S2 SYSTEM SETUP ÖØ VOLTAGE SENSING Ö VT CONNECTION TYPE: "Wye" S2 SYSTEM SETUP ÖØ VOLTAGE SENSING ÖØ VOLTAGE TRANSFORMER RATIO: "10.00:1" 2.
7 TESTING 7.3 ADDITIONAL FUNCTIONAL TESTS 7.3.3 REACTIVE POWER ACCURACY The specification for reactive power is ±1% of verify accuracy and trip element. 1. 3 × 2 × CT × VT × VTfull scale at Iavg < 2 × CT. Perform the steps below to Alter the following system setpoints: S2 SYSTEM SETUP Ö CURRENT SENSING Ö PHASE CT PRIMARY: "5000" S2 SYSTEM SETUP ÖØ VOLTAGE SENSING Ö VT CONNECTION TYPE: "Wye" S2 SYSTEM SETUP ÖØ VOLTAGE SENSING ÖØ VOLTAGE TRANSFORMER RATIO: "100:1" S2 SYSTEM SETUP ÖØ GEN.
7.3 ADDITIONAL FUNCTIONAL TESTS 7 TESTING 7.3.4 VOLTAGE PHASE REVERSAL ACCURACY The can detect voltage phase rotation and protect against phase reversal. To test the phase reversal element, perform the following steps: 1. Alter the following setpoints: S2 SYSTEM SETUP ÖØ VOLTAGE SENSING Ö VT CONNECTION TYPE: "Wye" S2 SYSTEM SETUP ÖØ GEN.
7 TESTING 7.3 ADDITIONAL FUNCTIONAL TESTS 7.3.6 GE MULTILIN HGF GROUND ACCURACY The specification for GE Multilin HGF 50:0.025 ground current input accuracy is ±0.5% of 2 × CT rated primary (25 A). Perform the steps below to verify accuracy. 1. Alter the following setpoint: S2 SYSTEM SETUP Ö CURRENT SENSING ÖØ GROUND CT: "50:0.025 2. CT" Measured values should be ±0.25 A. Inject the values shown in the table below either as primary values into a GE Multilin 50:0.
7.3 ADDITIONAL FUNCTIONAL TESTS 7 TESTING 7.3.8 PHASE DIFFERENTIAL TRIP ACCURACY NOTE These tests will require a dual channel current source. The unit must be capable of injecting prefault currents and fault currents of a different value. Application of excessive currents (greater than 3 × CT) for extended periods will cause damage to the relay. a) MINIMUM PICKUP CHECK 1. Connect the relay test set to inject Channel X current (Ix) into the G3 terminal and out of H3 terminal (Phase A).
7 TESTING 7.
7.3 ADDITIONAL FUNCTIONAL TESTS 7 TESTING 7.3.10 VOLTAGE RESTRAINED OVERCURRENT ACCURACY Setup the relay as shown in Figure 7–3: Secondary Injection Test Setup #3 on page 7–15. 1. Alter the following setpoints. S2 SYSTEM SETUP ÖØ GEN. PARAMETERS Ö GENERATOR RATED MVA: "100 MVA" S2 SYSTEM SETUP ÖØ GEN.
APPENDIX A A.1 STATOR GROUND FAULT APPENDIX A Application NotesA.1 Stator Ground Fault CAUTION A.1.1 DESCRIPTION This application note describes general protection concepts and provides guidelines on the use of the 489 to protect a generator stator against ground faults. Detailed connections for specific features must be obtained from the relay manual. Users are also urged to review the material contained in the 489 manual on each specific protection feature discussed here.
A.1 STATOR GROUND FAULT A APPENDIX A When several small generators are operated in parallel with a single step-up transformer, all generators may be grounded through the same impedance (the impedance normally consists of a distribution transformer and a properly sized resistor). It is possible that only one generator is grounded while the others have a floating neutral point when connected to the power grid (see the figure below).
APPENDIX A A.1 STATOR GROUND FAULT Again the time delay on this element must be coordinated with protection elements downstream, if the generator is grounded. Refer to Section 4.6.7: Ground Overcurrent on page 4–29 for the range of settings of the pickup levels and the time delays. The time delay on this element should always be longer than the longest delay on line protection downstream.
A.1 STATOR GROUND FAULT APPENDIX A A GENERATOR CORE BALANCE CT BREAKER Aux. Contact Grounding Switch Aux. Breaker 489 To Relay Grounding Impedance (Trans. & Resistor) Ground Directional Element (or O/C) Vneutral Input Isolating Transformer Grounding Switch Aux. Cont. Neutral O/V Element Ground Current Input Ground O/C Element G.S. Status Breaker Status 808734A1.
APPENDIX A A.1 STATOR GROUND FAULT A.1.5 THIRD HARMONIC VOLTAGE ELEMENT The conventional neutral overvoltage element or the ground overcurrent element are not capable of reliably detecting stator ground faults in the bottom 5% of the stator, due to lack of sensitivity. In order to provide reliable coverage for the bottom part of the stator, protective elements, utilizing the third harmonic voltage signals in the neutral and at the generator output terminals, have been developed (see Reference 4).
A.2 CURRENT TRANSFORMERS A A.2 Current Transformers APPENDIX A A.2.1 GROUND FAULT CTS FOR 50:0.025 A CT CTs that are specially designed to match the ground fault input of GE Multilin motor protection relays should be used to ensure correct performance. These CTs have a 50:0.025A (2000:1 ratio) and can sense low leakage currents over the relay setting range with minimum error. Three sizes are available with 3½", 5½", or 8" diameter windows. HGF3 / HGF5 DIMENSIONS HGF8 DIMENSIONS 808710A1.
APPENDIX A A.2 CURRENT TRANSFORMERS A.2.2 GROUND FAULT CTS FOR 5 A SECONDARY CT For low resistance or solidly grounded systems, a 5 A secondary CT should be used. Two sizes are available with 5½” or 13” × 16” windows. Various Primary amp CTs can be chosen (50 to 250). GCT5 GCT16 DIMENSIONS DIMENSIONS 808709A1.
A.2 CURRENT TRANSFORMERS A APPENDIX A A.2.3 PHASE CTS Current transformers in most common ratios from 50:5 to 1000:5 are available for use as phase current inputs with motor protection relays. These come with mounting hardware and are also available with 1 A secondaries. Voltage class: 600 V BIL, 10 KV. 808712A1.
APPENDIX B B.1 TIME OVERCURRENT CURVES APPENDIX B CurvesB.1 Time Overcurrent Curves GE Multilin B.1.1 ANSI CURVES 489 ANSI MODERATELY INVERSE 1000 B 100 MULTIPLIER 10 TRIP TIME (sec) 30.0 20.0 15.0 10.0 8.0 6.0 1 4.0 3.0 2.0 1.0 0.5 0.1 0.01 0.1 1 10 CURRENT (I/Ipu) 100 808802A4.
B.1 TIME OVERCURRENT CURVES APPENDIX B GE Multilin 489 ANSI NORMALLY INVERSE 1000 B 100 MULTIPLIER TRIP TIME (sec) 10 30.0 20.0 15.0 10.0 8.0 1 6.0 4.0 3.0 2.0 1.0 0.1 0.5 0.01 0.1 1 10 CURRENT (I/Ipu) 100 808801A4.
APPENDIX B B.1 TIME OVERCURRENT CURVES 489 ANSI VERY INVERSE GE Multilin 1000 B 100 10 TRIP TIME (sec) MULTIPLIER 30.0 20.0 15.0 1 10.0 8.0 6.0 4.0 3.0 2.0 1.0 0.1 0.5 0.01 0.1 1 10 CURRENT (I/Ipu) 100 808800A4.
B.1 TIME OVERCURRENT CURVES APPENDIX B 489 ANSI EXTREME INVERSE GE Multilin 1000 B 100 TRIP TIME (sec) 10 MULTIPLIER 30.0 20.0 1 15.0 10.0 8.0 6.0 4.0 3.0 2.0 0.1 1.0 0.5 0.01 0.1 1 10 CURRENT (I/Ipu) 100 808799A4.
APPENDIX B B.1 TIME OVERCURRENT CURVES B.1.2 DEFINITE TIME CURVES 489 DEFINITE TIME GE Multilin 1000 B 100 TRIP TIME (sec) 10 MULTIPLIER 30.0 20.0 15.0 10.0 1 8.0 6.0 4.0 3.0 2.0 1.0 0.1 0.5 100 10 1 0.1 0.01 CURRENT (I/Ipu) 808798A4.
B.1 TIME OVERCURRENT CURVES APPENDIX B B.1.3 IAC CURVES GE Multilin 489 IAC SHORT INVERSE 1000 B 100 MULTIPLIER TRIP TIME (sec) 10 30.0 1 20.0 15.0 10.0 8.0 6.0 4.0 3.0 0.1 2.0 1.0 0.5 CURRENT (I/Ipu) 100 10 1 0.1 0.01 808811A4.
APPENDIX B B.1 TIME OVERCURRENT CURVES 489 IAC INVERSE GE Multilin 1000 B 100 MULTIPLIER 10 TRIP TIME (sec) 30.0 20.0 15.0 10.0 8.0 6.0 4.0 1 3.0 2.0 1.0 0.5 0.1 CURRENT (I/Ipu) 100 10 1 0.1 0.01 808810A4.
B.1 TIME OVERCURRENT CURVES APPENDIX B 489 IAC VERY INVERSE GE Multilin 1000 B 100 10 TRIP TIME (sec) MULTIPLIER 30.0 20.0 15.0 10.0 8.0 1 6.0 4.0 3.0 2.0 1.0 0.1 0.5 CURRENT (I/Ipu) 100 10 1 0.1 0.01 808807A3.
APPENDIX B B.1 TIME OVERCURRENT CURVES 489 IAC EXTREME INVERSE GE Multilin 1000 B 100 TRIP TIME (sec) 10 MULTIPLIER 30.0 1 20.0 15.0 10.0 8.0 6.0 4.0 3.0 0.1 2.0 1.0 0.5 CURRENT (I/Ipu) 100 10 1 0.1 0.01 808806A4.
B.1 TIME OVERCURRENT CURVES APPENDIX B B.1.4 IEC CURVES GE Multilin 489 IEC CURVE A (BS142) 1000 B 100 TRIP TIME (sec) 10 MULTIPLIER 1.00 0.80 0.60 0.50 0.40 1 0.30 0.20 0.15 0.10 0.05 0.1 CURRENT (I/Ipu) 100 10 1 0.1 0.01 808803A4.
APPENDIX B B.1 TIME OVERCURRENT CURVES GE Multilin 489 IEC CURVE B (BS142) 1000 B 100 TRIP TIME (sec) 10 MULTIPLIER 1 1.00 0.80 0.60 0.50 0.40 0.30 0.20 0.15 0.1 0.10 0.05 100 10 1 0.1 0.01 CURRENT (I/Ipu) 808804A4.
B.1 TIME OVERCURRENT CURVES APPENDIX B GE Multilin 489 IEC CURVE C (BS142) 1000 B 100 TRIP TIME (sec) 10 1 MULTIPLIER 1.00 0.80 0.60 0.50 0.1 0.40 0.30 0.20 0.15 0.10 0.05 CURRENT (I/Ipu) 100 10 1 0.1 0.01 808805A4.
APPENDIX C C.1 REVISION HISTORY APPENDIX C MiscellaneousC.1 Revision History C.1.1 CHANGE NOTES Table C–1: REVISION HISTORY MANUAL P/N REVISION RELEASE DATE ECO 1601-0071-E1 --- --- N/A 1601-0071-E2 32E120A8.000 20 February 1997 489-018 1601-0071-E3 32F131A8.000 22 December 1997 489-039 1601-0071-E4 32F131A8.000 21 December 1998 489-087 1601-0071-E5 32F132A8.000 10 March 1999 489-107 1601-0071-E6 32F132A8.000 10 June 1999 489-110 1601-0071-E7 32G140A8.
C.2 EU DECLARATION OF CONFORMITY C.2 EU Declaration of Conformity APPENDIX C C.2.
APPENDIX C C.3 WARRANTY INFORMATION C.3 Warranty Information C.3.1 GE MULTILIN WARRANTY GE Multilin Relay Warranty C General Electric Multilin Inc. (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.
C.
INDEX Numerics 0-1mA ANALOG INPUT .................................................... 2-12 4-20mA ANALOG INPUT .................................................. 2-12 489PC see SOFTWARE 50:0.025 CT ..................................................................... 2-10 A ACCESS SWITCH ............................................................ 4-14 ACCESSORIES ................................................................. 1-3 ACTUAL VALUES messages ................................................
INDEX general ............................................................................ 1-5 RTD ........................................................................1-4, 2-12 voltage ....................................................................1-4, 2-11 E ELECTRICAL INTERFACE ................................................. 6-1 EMERGENCY RESTARTS ................................................ 4-16 ENTERING +/– SIGNS .......................................................
INDEX N NEGATIVE SEQUENCE CURRENT ACCURACY TEST ....... 7-5 NEGATIVE SEQUENCE OVERCURRENT ......................... 4-27 NEGATIVE-SEQUENCE CURRENT .................................. 5-13 NEUTRAL CURRENT ACCURACY TEST ............................ 7-4 NEUTRAL OVERVOLTAGE ....................................... 4-39, A-1 NEUTRAL UNDERVOLTAGE ............................................ 4-40 NEUTRAL VOLTAGE ACCURACY TEST .................... 7-4, 7-13 O OFFLINE OVERCURRENT ....................................
INDEX configuration ..................................................................... 3-7 installation ........................................................................ 3-5 loading setpoints ............................................................... 3-9 phasors .......................................................................... 3-15 printing setpoints/actual values ......................................... 3-11 requirements .............................................................
FIGURE 1–1: SINGLE LINE DIAGRAM ......................................................................................................................................................... 1 FIGURE 2–1: 489 DIMENSIONS ................................................................................................................................................................. 1 FIGURE 2–2: DRAWOUT UNIT SEAL .......................................................................................................
FIGURE B–8: IAC VERY INVERSE CURVES ................................................................................................................................................ 8 FIGURE B–9: IAC EXTREME INVERSE CURVES .......................................................................................................................................... 9 FIGURE B–10: IEC CURVES A (BS142) ...................................................................................................................
TABLE: 1–1 TRIP AND ALARM PROTECTION FEATURES .............................................................................................................................. 2 TABLE: 1–2 METERING AND ADDITIONAL FEATURES .................................................................................................................................. 2 TABLE: 1–3 489 ORDER CODES .....................................................................................................................................
