what is the pperating squvance in transmission line for
circuit braker, isolater & earthing switch.

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what is the pperating squvance in transmission line for circuit braker, isolater & earthing swi..

Answer / krishnappan

in switchyard first our earth switch should be open.
after that close the bus isolator,then line isolator.
finally close the circuit breaker

Is This Answer Correct ?    3 Yes 0 No

what is the pperating squvance in transmission line for circuit braker, isolater & earthing swi..

Answer / sandeep

in case of maintainance first open the circuit breaker then
open the isolator then close the earthing switch
and while charging the line do exact reverse i.e. open
earthing switch first then close isolator then finally
close circuit breaker.

Is This Answer Correct ?    1 Yes 0 No

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