acb means AIR CIRCUIT BREAKER ,& vcb means VACUUM CIRCUIT BREAKER
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Actually ACB isused for Low Tension side and VCB is used for High Tension Side..Chappa matter
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The letters ACB stand for Air Circuit Breaker. These types of circuit breakers are used for high voltage switching. The breakers are usually enclosed in steel switch gear enclosures that are situated in electrical service vaults.
shunt trip coil used to trip the breaker automatically or manually.
acb means AIR CIRCUIT BREAKER ,& vcb means VACUUM CIRCUIT BREAKER
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Liga ACB was created in 1957.
College ACB was created in 2008.
ACB Lagos ended in 1994.
vcb and acb
Arc developed during closing/opening operation is extinguished by air in ACB and by oil in OCB
there is three difference in ACB and MCCB, 1- ACB on off operation is easy as com pair to mccb because acb having charged spring force. 2- acb having much delay time period (category A) and mccb having low time period (category B) 3- the main diffidence is that acb having high raptching capacity and mccb are low.
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closing coil 24 vdc
The length of arc ACB is 57.2.