GE 489 Instruction Manual page 265
Generator management relay
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Also See for 489:
- Instruction manual (314 pages) ,
- Communications manual (78 pages) ,
- Instruction manual (38 pages)
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APPENDIX A
Table A–5: SETPOINTS PAGE 5 – CURRENT ELEMENTS (Sheet 7 of 7)
DESCRIPTION
PHASE DIFFERENTIAL
Phase Differential Trip
Assign Trip Relays
Differential Trip Min. Pickup
Differential Trip Slope 1
Differential Trip Slope 2
Differential Trip Delay
Assign Trip Relays
GROUND DIRECTIONAL
Supervise With Digital Input
Ground Directional MTA
Ground Directional Alarm
Assign Alarm Relays
Ground Directional Alarm Pickup
Ground Directional Alarm Delay
Ground Directional Alarm Events
Ground Directional Trip
Assign Trip Relays
Ground Directional Trip Pickup
Ground Directional Trip Delay
HIGH-SET PHASE OVERCURRENT
High-Set Phase Overcurrent Trip
Assign Trip Relays
High-Set Phase O/C Pickup
High-Set Phase O/C Delay
GE Power Management
DEFAULT
USER VALUE
SETPOINT GROUP 1
Off
1---
0.10 × CT
10%
20%
0 cycles
1---
Yes
0°
Off
---5
0.05 × CT
3.0 sec.
Off
Off
1---
0.05 × CT
3.0 sec.
Off
1---
5.00 × CT
1.00 sec.
489 Generator Management Relay
A.1 COMMISSIONING
USER VALUE
SETPOINT GROUP 2
A
A-11
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