Why VCB and SF6 breakers to be used in HT used by cant ACB
of higher rating to be used for 11kv and 33kv.
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Answer Posted / g.sridhar
According BIS,IEC standards in HT lines the Isc that current
is very highly making arc that arc is quenched by the SF6 or
vcb. If ACB has used the breaker contacts & cables are burn
out at Isc.so we used SF6 & vcb has used in HT lines for
safety purpose
| Is This Answer Correct ? | 2 Yes | 6 No |
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