GE 489 - Manual (Page 238)

B-2 489 Generator Management Relay GE Multilin
B.1 TIME OVERCURRENT CURVES APPENDIX B
B
Figure B–2: ANSI NORMALLY INVERSE CURVES
0.01
0.1
1
10
100
1000
0.1 1 10 100
CURRENT (I/Ipu)
TR
IP
TIME
(sec)
808801A4.CDR
489 ANSI
NORMALLY 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