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Answer Posted / raj kumar moudgil
CIRCUIT BREAKER IS A SWITCHING DEVICE WHICH CAN OPEN AND CLOSE THE CIRCUIT , DURING NORMAL AND ABNORMAL ( FAULT) CONDITION .
IT MAY BE ACB,VCB,OCB AND SF6 TYPE.
PROTECTION DEVICES ARE RELAYS WHICH GIVES COMMAND TO TRIP CKT OF C.B. WHEN FAULT OCCURS.
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