GE 489 - Manual (Page 239)

GE Multilin 489 Generator Management Relay B-3
APPENDIX B B.1 TIME OVERCURRENT CURVES
B
Figure B–3: ANSI VERY INVERSE CURVES
0.01
808800A4.DWG
0.1
1
10
100
1000
0.1 1 10
100
CURRENT (I/Ipu)
TR
IP
TIME
(sec)
489 ANSI
VERY 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