GE 489 Instruction Manual page 293

APPENDIX C C.1 TIME OVERCURRENT CURVES
489 IEC
GE Power Management
CURVE B (BS142)
1000
C
100
10
MULTIPLIER
1
1.00
0.80
0.60
0.50
0.40
0.30
0.20
0.15
0.1
0.10
0.05
0.01
CURRENT (I/Ipu)
808804A3.CDR
Figure C–11: IEC CURVE B (BS142)
GE Power Management 489 Generator Management Relay C-11