engineering recuitment BARC Stipendiary Trainee Category II 2023 Mock Test Power Systems Transmission and Distribution Substation
An isolator in an power substation is to
1
cut-off under overvoltage surge.
2
cut-off in the short circuit condition
3
cut-off under zero load condition for safety isolation and maintenance.
4
cut-off in the event of rapid fluctuations in load.