Give the sequence of operations during the opening and closing of a circuit in substation?

All Questions › Category: Switchgear And Protection › Give the sequence of operations during the opening and closing of a circuit in substation?
0 Vote Up Vote Down
Chetan Shidling asked 4 years ago

I need short information.

1 Answers
0 Vote Up Vote Down
Chetan Shidling answered 4 years ago

When opening the first open circuit breaker, then open the isolator and later close the earthing switch. When closing, first open earthing switch, then close isolator, and then close circuit breaker.