What is working principle of ACB and VCB?
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Answer Posted / annu
circuit bkrs. names related with arc quenching medium which
is used in breaker. mostly air ckt. bkr used for LT system
and arc quenching mwdium is only air but vaccume ckt. bkr.
used for HT system and arc quenching medium is vaccume
which is created in separate vaccume bottles where contacts
make and break .
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