Transformer calculator

1. Select transformer phase.

2. Enter two values, then click or tap "Calculate"



KVA is typically calculated using load amps and load voltage.
Example: Your source voltage is 480 Delta, 3-phase. Your equipment is 208Y/120, 3-phase and requires 50 amps to operate. You should enter "208" in the Volts field and "50" in the Amps field.



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