ABB SPAC 536 C User Manual page 118

24
t/s
70
60
50
40
30
20
10
9
8
7
6
5
4
3
2
1
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0.09
0.08
0.07
0.06
0.05
0.04
0.03
0.02
1
Fig. 7. RI-type inverse-time characteristics of the low-set overcurrent unit in relay module
SPCJ 4D24
4 6 7 8 9 10
2 3 5
k
1.0
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0.05
20 I/I>