GE 489 Instruction Manual page 262

A.1 COMMISSIONING
Table A–5: SETPOINTS PAGE 5 – CURRENT ELEMENTS (Sheet 4 of 7)
A
DESCRIPTION
NEGATIVE SEQUENCE OVERCURRENT
Negative Sequence Alarm
Assign Alarm Relays
Negative Sequence Alarm Pickup
Negative Sequence Alarm Delay
Negative Sequence Alarm Events
Negative Sequence O/C Trip
Assign Trip Relays
Neg. Sequence O/C Trip Pickup
Neg. Sequence O/C Constant K
Neg. Sequence O/C Max. Time
Neg. Sequence O/C Reset Rate
GROUND OVERCURRENT
Ground Overcurrent Alarm
Assign Alarm Relays
Ground Overcurrent Alarm Pickup
Ground Overcurrent Alarm Delay
Ground Overcurrent Alarm Events
Ground Overcurrent Trip
Assign Trip Relays
Ground Overcurrent Trip Pickup
Curve Shape
Neg. Sequence O/C Max. Time
Neg. Sequence O/C Reset Rate
Flexcurve Trip Time at 1.03 x PU
Flexcurve Trip Time at 1.05 x PU
Flexcurve Trip Time at 1.10 x PU
Flexcurve Trip Time at 1.20 x PU
Flexcurve Trip Time at 1.30 x PU
Flexcurve Trip Time at 1.40 x PU
Flexcurve Trip Time at 1.50 x PU
Flexcurve Trip Time at 1.60 x PU
Flexcurve Trip Time at 1.70 x PU
Flexcurve Trip Time at 1.80 x PU
Flexcurve Trip Time at 1.90 x PU
Flexcurve Trip Time at 2.00 x PU
Flexcurve Trip Time at 2.10 x PU
Flexcurve Trip Time at 2.20 x PU
Flexcurve Trip Time at 2.30 x PU
A-8
DEFAULT USER VALUE
SETPOINT GROUP 1
Off
---5
3% FLA
5.0 sec.
Off
Off
1---
8% FLA
1
1000 sec.
227.0 sec.
Off
---5
0.20 × CT
0 cycles
Off
Off
1---
0.20 × CT
ANSI Extremely Inv.
1000 sec.
227.0 sec.
65535 ms
65535 ms
65535 ms
65535 ms
65535 ms
65535 ms
65535 ms
65535 ms
65535 ms
65535 ms
65535 ms
65535 ms
65535 ms
65535 ms
65535 ms
489 Generator Management Relay
APPENDIX A
USER VALUE
SETPOINT GROUP 2
GE Power Management