GE 489 - Manual (Page 240)

B-4 489 Generator Management Relay GE Multilin
B.1 TIME OVERCURRENT CURVES APPENDIX B
B
Figure B–4: ANSI EXTREMELY INVERSE CURVES
0.01
808799A4.CDR
0.1
1
10
100
1000
0.1 1 10
100
CURRENT (I/Ipu)
T
R
IPT
IM
E
(sec)
489 ANSI
EXTREME INVERSE
0.5
1.0
2.0
3.0
4.0
6.0
8.0
10.0
15.0
20.0
30.0
MULTIPLIER
GE Multilin