B-10
489 Generator Management Relay
GE Multilin
B.1 TIME OVERCURRENT CURVES
APPENDIX B
B
B.1.4 IEC CURVES
Figure B–10: IEC CURVES A (BS142)
0.05
0.10
0.15
0.20
0.30
0.40
0.50
0.60
0.80
1.00
0.01
0.1
1
10
100
1000
0
.1
1
10
100
CURRENT (I/Ipu)
TR
IP
TIME
(sec)
MULTIPLIER
489
IEC CURVE A (BS142)
808803A4.CDR
GE Multilin
