Home › Electrical Engineering Forum › General Discussion › Required Power Supply Formula › Re: Required Power Supply Formula
2011/01/22 at 5:58 pm
#11746
erickench
Participant
If you know the power factor then you divide into the KW rating which in this case is 25 KW. If you don't know the power factor then assume that it is unity. Your KVA would be the same, 25 KVA. That full load current value is probably obtained from the NEC tables in article 430.