GE 489

GE Power Management
489 Generator Management Relay C-1
APPENDIX C C.1 TIME OVERCURRENT CURVES
C
APPENDIX C CURVESC.1 TIME OVERCURRENT CURVES C.1.1 ANSI CURVES
Figure C–1: ANSI MODERATELY INVERSE CURVE
0.01
0.1
1
10
100
1000
0.1
1
10
100
808802A3.CDR
CURRENT (I/Ipu)
TRIP TIME (sec)
0.5
1.0
2.0
3.0
4.0
6.0
8.0
10.0
15.0
20.0
30.0
MULTIPLIER
489 ANSI
MODERATELY INVERSE
GE Power Management