Answer / bharatgohel5314

CBCT means Core Balance
Current Transformer and it
used for cable protection.

Answer / srinivas

CBCT is Core Balance Current Transformer. it will be having one winding passes over three phases and senses the zero sequence currents there by tripps the circuit through the breaker. its main purpose is to distinguish the earth faults from short circuit faults..i.e its operation depends up on the zero sequence currents that are produced when earth fault occurs.

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