ABB REF610 - Page 54

TD
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1
2
3
4
5
6
7
8
9
10
20
30
40
70
60
50
t/s
1
3
45678910220
0.02
0.03
0.04
0.05
0.06
0.07
0.08
0.09
0.1
1
2
3
4
5
6
8
15
10
12
CURRENT IN MULTIPLES OF SETTING
A070052
Fig. 5.1.4.9.-7 Inverse-time characteristic
54
REF610REF610
Feeder Protection Relay
Technical Reference Manual - ANSI Version
1MRS755535