What is difference between VCB and SF6 breaker
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Answer / guna
VCB - Vacuum circuit breaker, which is used at HT side of
transformer(High voltage & low current side). the arc
quenching medium is vacuum.
SF6 - sulfur hexafluoride circuit breaker, which is used at
both HT & LT side of transformer..the arc quenching medium is
SF.
Is This Answer Correct ? | 14 Yes | 0 No |
Answer / avinash pralhad nikam
The arc quenching capacity of SF6 is more than the vaccum. also sf6 has more IR value than that of vaccume . also sf6 is more electronegative than vaccum.
Is This Answer Correct ? | 9 Yes | 2 No |
Answer / vidya sagar reddy
In VCB the arc quenching media is Vaccume. We can use up to 33KV. SF 6 arc quenching media is Sulfur hexa fluoride gas. Which is very effective comparing with VCB. Available only above 33KV.
Is This Answer Correct ? | 4 Yes | 2 No |
Answer / jitender
sf6 breaker has low maintenance other than the vcb
it's life is more than vcb.
Is This Answer Correct ? | 0 Yes | 1 No |
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