kVA Calculator
Select a phase and enter volts and amps to calculate kVA for 3-phase or 1-phase padmount transformers.
How to use the kVA calculator
Single phase formula
Three phase formula
Calculator variables & definitions
Below are the definitions for the different terms that this calculator uses
What is Voltage?
Electric potential, measured in volts (V), represents the amount of electrical potential energy per unit charge at a specific point in the circuit. Voltage is the driving force that causes electric charges to move within a circuit.
What is kVA?
kVA, or kilovolt-ampere, is a unit of apparent power in an AC (alternating current) electrical system. It represents the combination of both real power (used to perform work) and reactive power (used to sustain electric and magnetic fields).
What are Amps?
Amps, short for amperes, measure the electric current in a circuit—that is, the rate at which electric charge flows through a conductor.
What is a transformer?
A transformer is an electrical device that changes voltage levels from one value to another. It can either step voltage up (increase) or step it down (decrease), depending on the application.
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