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HOW TO CALCULATE GROUND FAULT CURRENT IN 430V 4000AMP AIR
CIRCUIT BREAKER?

Answer Posted / k.prakashchandra

The line to ground voltage is about 250 V , The maximum
ground fault current is, when the phase wire touches the
earthed metal surface and it will be about 250 A ,taking ER
as 0.5 X 2 ohm ,ignoring impedance of the tr.

Is This Answer Correct ?    3 Yes 1 No



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