1-under voltes 2-over load

what is the safety of ACB & VCB and how can this work and
how can the service the ACB & VCB parts name with picture

Question Posted / raj kumar

Answer Posted / raj kumar

1-under voltes 2-over load 3-reverse power 4-earth fault 5-single Phasing 6-Proper working triping coil.etc.

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