Alternating volts in electric power are increased or decreased using transformers. Single phase and three phase transformers are the two classifications of the transformer. The one with three-phase magnetic circuits is called as the three-phase transformer. The below section of this page provides you the three-phase transformer capacity formula which helps you to calculate the capacity of a 3 phase transformer with the known values of kVA, volts, and amps.

A = (k x 1000) / (V x Ph)

k = (Ph x V x A) / 1000

Where,

V = Volt

A = Amps

k = kVA

Ph = 3 phase (√3 = 1.732050808)

The above three-phase transformer capacity formula in this page is a simple formula which will be useful in the place where the need for a transformer for three-phase industrial application is more.