Answer Posted / attique ur rehman

the formula for calculating Single Phase Current is

I = 1000 * KVA/Voltage

Formula for calculating Three Phase Current is

I=1000 * KVA/voltage * 1.732

So for 500KVA we can calculate as below

I= 1000 * 500KVA/440 * 1.732 = 656.6Amps (Depending on
Voltage), if the voltage rating is changed your amps will
automatically change

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