Transformer Capacity Calculator

An online Three phase transformer calculator to find the current in different power units. To increase/decrease the alternating volts in electric power, transformers are used. It has two types, single phase and three phase transformer. A 3 phase transformer has three magnetic circuits that are interlaced to give a uniform distribution of the dielectric flux between the high and low volts windings. Use this online transformer capacity calculator to find its volts, kVA and amps

Three Phase Transformer Calculator | Calculate kVA, Volts and Amps

V
kVA
A

An online Three phase transformer calculator to find the current in different power units. To increase/decrease the alternating volts in electric power, transformers are used. It has two types, single phase and three phase transformer. A 3 phase transformer has three magnetic circuits that are interlaced to give a uniform distribution of the dielectric flux between the high and low volts windings. Use this online transformer capacity calculator to find its volts, kVA and amps

Code to add this calci to your website Expand embed code Minimize embed code

Formula:

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

Example:

Find the Transformer capacity kVA rating for 3 phase transformer of an electric current which generates 1500 V and 150 amps.

Solution:

k = (Ph x V x A) / 1000
kilovolt amps = (1.732050808 x 1500 x 150) / 1000
= 389.71 kVA

Three phase transformer has three connections such as delta, star and interconnected. Delta connection has an advantage where it has a capacity to deliver the original output even if any one transformer of a group are disabled.

english Calculators and Converters