Answer / sheikh

VCB is vacuum circuit breaker and there is arc quenching medium is vacuum . VCB used on high & medium voltage.
ACB is Air circuit breaker and there is arc quenching medium
is Air blast. ACB used on low voltage application .
there are main difference is quenching mediums.

what is the difference between isolator and circuit breaker

3 Answers  

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which circuit takes max. load & which circuit takes min. load i.e. SERIES CIRCUIT OR PARALLEL CIRCUIT??

3 Answers  

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armature is that part in which current is induced since in dc motor we supply current to the conductor so why we call it armature?

0 Answers  

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What happens if i apply 500V to 440V rotary Switch ?

0 Answers  

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1 Answers   Ericsson,

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what is neutral plane shift?

1 Answers  

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why dc supply is given to the field of alternator

9 Answers  

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How we can find the regulation of transformer?

2 Answers  

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why secondary of c.t. will kept open ?

4 Answers   L&T,

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4 Answers   Ecil, Siemens,

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