Trip Curves When No Prior Load - ABB REF610 Technical Reference Manual

1MRS755535
Feeder Protection Relay
Technical Reference Manual - ANSI Version
t/s
100000
10000
1000
100
10
1
1.05
0
1
CURRENT IN MULTIPLES OF FULL LOAD CURRENT SETTING
Fig. 5.1.4.4.-1

Trip curves when no prior load

t[min]
90
60
40
25
15
10
5
1
10
REF610 REF610
A070039
33