What is the correct procedure to shutdown VCB in 11kv
substation.safety and work procedure
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Answer Posted / manzoor hussain
1)First need to obtain isolation permit(work permit)
2)Confirm substation no., breaker no.
3)Inform to control engineer
4)Transfer the load from LV side
5)First need to trip the vcb(electrically or manually)
6)Disconnect DS switch (isolator)
7)Need to close the earth switch (ES)
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