Answer / sanjib kr. patra

Safety Measure in ACB: 1) Over voltage 2) Under voltage 3) Over Current 4) Earth Fault are taken care using proper relay and its setting.

Answer / bhavesh jaiswal

Short circuit also.

Answer / reddy

I think don"t use earth faults in acb
;s

Answer / nagendra saladhi

over voltage, under voltage, over current, short circuit current and earth fault current were to be consider at the time of its setting.

Answer / muradali

under voltage closeing realy shunt relay

what is relation between ct and pt ratio with multiplication factor of a energy meter? is there any other factor on which multification factor depend?

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directional over current relay when acted & how it works

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