GE Power Management
489 Generator Management Relay 7-1
7 TESTING 7.1 TEST SETUP
7
7 TESTING 7.1 TEST SETUP 7.1.1 TEST CONTENTS
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 dra-
wout 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. Testing of the relay during commissioning using a primary injection
test set will ensure that CTs and wiring are correct and complete.
The 489 tests are listed below. For the following tests refer to Figure 7–1: SECONDARY INJECTION TEST SETUP on
page 7–2:
1. OUTPUT CURRENT ACCURACY TEST
2. PHASE VOLTAGE INPUT ACCURACY TEST
3. GROUND, NEUTRAL AND DIFFERENTIAL CURRENT ACCURACY TEST
4. NEUTRAL VOLTAGE (FUNDAMENTAL) ACCURACY TEST
5. NEGATIVE SEQUENCE CURRENT ACCURACY TEST
6. RTD ACCURACY TEST
7. DIGITAL INPUT AND TRIP COIL SUPERVISION TEST
8. ANALOG INPUT AND OUTPUTS TEST
9. OUTPUT RELAY TEST
10. OVERLOAD CURVE TEST
11. POWER MEASUREMENT TEST
12. REACTIVE POWER TEST
13. VOLTAGE PHASE REVERSAL TEST
For the following tests refer to Figure 7–2: SECONDARY INJECTION SETUP #2 on page 7–12:
14. GE POWER MANAGEMENT (HGF) GROUND CURRENT ACCURACY TEST
15. NEUTRAL VOLTAGE (3RD HARMONIC) ACCURACY TEST
16. PHASE DIFFERENTIAL TRIP TEST
For the following test refer to Figure 7–4: SECONDARY INJECTION TEST SETUP #3 on page 7–15:
17. VOLTAGE RESTRAINED OVERCURRENT
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