User wishes to know if Zone Selective Interlocking (ZSI) and Setting Groups A and B may be used concurrently
Sepam series 20
Sepam series 40
Sepam series 80
Sepam series 20:
Zone selective interlocking (ZSI) OR the swapping of the settings group based on an input may be used. ZSI and Setting Groups A and B may NOT be used concurrently.
When ZSI is selected in the relay, Setting Groups A and B are replaced by the Time-based protection function and the ZSI protection function.
Sepam series 40 / Sepam series 80
ZSI and Setting Groups A and B may be used concurrently