Table 1: P/B relays and the close-in fault currents for an IEEE 8-bus test system.

Primary relayBackup relay
No.CurrentNo.Current

1323063230
8608091160
8608071880
259101993
92480102480
2591071880
3355023550
103880112340
6610051200
66100141870
13298082980
14519091160
7521051200
1451901993
7521013985
4378032240
113700123700
5240042400
12589013985
125890141870