Volt Amps Calculator

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Suppose you need to calculate the required kVA of the Generator – How would you find it?

This Volt Amps Calculator would help you out in calculating the kVA of any electrical device. You can find kVA of single-phase and three-phase equipment.

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Volt Amps Calculator

 

How to use the calculator?

  • From the drop-down, select the phase.
  • For this calculator, note down the voltage-rated current. 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 calculate the kVA of an electrical device?

Single Phase formula to calculate kVA

For single-phase, kilo volt-ampere (kVA) is equal to the rated voltage (V) multiplied by current. Divide that result by a thousand to get the final result in kilo volt-ampere.

Single phase kVA calculator

 

 

Example: Let us say you have 230 VAC equipment and the current is 100 amps. The calculated kilo volt-ampere is 23 kVA.

Three Phase formula to calculate kVA

For three-phase, kilo volt-ampere (kVA) is equal to the square root of three multiplied by rated voltage (V) by rated current (I) whole divided by thousand.

Three phase kVA calculator

 

 

Example: Let us say you have a transformer having LV side voltage 415 VAC and rated current 2000 amps. For this transformer, the calculated kVA is 1435.9 kVA.

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