Three Phase Transformer Capacity Calculator

A simple online transformer capacity calculator to find the 3 phase transformer. The transformer capacity is calculated by finding the kVA of the transformer, based on winding voltage and amperage information. This three phase transformer capacity calculator helps you find the kVA, Volt or Amps where you can select the one you wish to calculate and enter the values for the remaining two.

Calculate Load in KVA, Volts and Amps

Example: Find the Transformer capacity kVA rating for three phase transformer of an electric current which generates 1400 V and 250 amps.

k = (Ph x V x A) / 1000
kilovolt amps = (1.732050808 x 1400 x 250) / 1000
= 606.2 kVA