V.c.b and a.c.b difference
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VCB is used where system voltage is high as 11 kv , 33 kv but current value is low
while ACB is used where system voltage is low but current value is high , ACB comes upto current value of 2000 amps
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Answer / rvr
simply
VCB- vaccum circuit breaker,used up to 35kv,3000A
vaccum quench the arc,long life
ACB-air circuit breaker,660v,10000A
large size,less life and more maintenance compared to VCB.electronically or microprocessor controlled...
boththe above CB's use charging spring to open the breaker
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