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You have to know 2 things in order to perform the calculation. You will need to know the power (KW) and either the amps or the voltage. If you know voltage you can determine amps and if you know amps you can determine voltage. However with solely the KW you do not have enough information to calculate either. Here is the formula:
1 Phase: KW = (E x I x pf)/ 1000
3 Phase: KW = (1.732 x E x I x pf)/1000
Where E is voltage, I is current, and pf is Power Factor
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If a load takes 50 kW at a power factor of 0.5 lagging Calculate the apparent power and reactive power?
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