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What KVA transformer is needed to convert 480v - 240v 13.5A load?
Wiki User
∙ 13y ago
Ohms law says that watts are equal to volts times amps.
240v X 13.5a = 3240 va
VA / 1000 = Kva
So, your load requires 3.24 Kva. The transformer should have a rating greater than this as a safety factor, so you would choose the next larger size, in this case probably a 5 Kva transformer with a 480v primary and a 240v secondary.
Your local electrical codes may require a larger safety factor, so you would want to consult them before buying the transformer!
Wiki User
∙ 13y ago
Wiki User
∙ 13y ago240v x 13.5A = 3.24kVA, single phase transformer.
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