GE Multilin 489

CHAPTER 7: TESTING
489 GENERATOR MANAGEMENT RELAY – INSTRUCTION MANUAL 7–11
7.2.9 Output Relays
To verify the functionality of the output relays, perform the following steps:
Using the setpoint:
S12 TESTING ZV TEST OUTPUT RELAYS ZV FORCE OPERATION OF RELAYS: “1 Trip”
Z Select and store values as per the table below, verifying operation
Note
The 6 Service relay is failsafe or energized normally. Operating output relay 6 causes it to
de-energize.
Force
Operation
Setpoint
Expected Measurement (4 for short) Actual Measurement (4 for short)
123456123456
no nc no nc no nc no nc no nc no nc no nc no nc no nc no nc no nc no nc
1Trip 444444
2Auxiliary 44 4 4 44
3Auxiliary 444 444
4Auxiliary 4 4 44 44
5Alarm 444444
6Service 444444
All Relays 44444 4
No Relays 444444
Courtesy of NationalSwitchgear.com