kVA to Amp Calculator – How to convert kVA to Amps?

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This calculator will help you convert kVA to amps and vice versa. I will also show you how to convert kVA to amps manually.

You can find amperes of both single phase and three phase equipment kVA is known to you.

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kVA to Amp Calculator

How to use the calculator?

  • From the drop down, select the phase.
  • For this calculator, note down the voltage and kVA of the equipment. You can find details from the equipment’s nameplate.
  • Enter the data collected in respective fields.
  • The calculator would show automatically the calculated value.

How to convert kVA to Amps?

Single Phase formula to convert kVA to Ampere

For single phase, amperes (I) is equal to kilo volt-amperes (kVA) multiply by 1000 whole divided by Voltage (V). Multiplying by thousand would convert kilo volt-amperes into volt-amperes.

Single Phase ampere formula when kVA is known

 

 

Example: Let us say you have 50 kVA transformer with LV side rated voltage is 230 VAC  input current of transformer is 43.478 amps.

Three Phase formula to convert kVA to Ampere

For three phase, amperes (I) is equal to kilo volt-amperes (kVA) multiply by 1000 whole divided by Voltage (V) multiply by square root of 3.

Three Phase ampere formula when kVA is known

 

 

Example: Let us say we have 5000 kVA transformer with LV side rated voltage is 6.6 kV then the rated current of transformer at LV side is 757.576 amps.

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