Amps to kVA

Amps (A) to Kilovolt-amps (kVA) calculator and how to calculate

Amps (A) to Kilovolt-amps (kVA) calculator

Phase:
Amps: A
Volts: V
Kilovolt-amps: kVA

Related Calculator:

Amps (A) to kilovolt-amps (kVA) conversion

Single phase amps to kVA conversion

1 kilovolt-ampere is equal to 1,000 volts-amperes. As such, to convert the apparent power from VA to kVA, you should divide the VA by 1,000. Therefore, the apparent power S, in kVA, is calculated by multiplying the RMS voltage, in volts V by the phase current I and then dividing the result by 1,000.

S(kVA) = I(A) × V(V) / 100

Therefore;

Kilovolt-amps = volts times the amps divided by 1,000

Kilovolt-amps = amps × volts / 1000

Or

kVA = A × V / 1000

Example

Work out the apparent power, given that the RMS voltage is 110V and the phase current is 10A.

Solution

S = 10A × 110V / 1000 = 1.1kVA

3 phase amps to kVA conversion

Calculation with line to line voltage

Assuming that all the loads in the system are balanced, the apparent power S in kilovolt-amps is calculated by multiplying the phase current I, in amps (A) multiplied by the line in line RMS voltage, in volts VL-L (V) multiplied by the square root of 3 and then dividing the result by 1,000.

S(kVA) = √3 × I(A) × VL-L(V) / 1000

Therefore;

Kilovolt-amps is equals to the square root of 3 times the volts times the amps divided by 1,000

Kilovolt-amps = √3 × amps × volts / 1000

Or

kVA = √3 × A × V / 1000

Example

Given that the line in line RMS voltage across an electrical circuit is 110V and the phase current is 10A, calculate the apparent power, in kVA.

Solution

S = √3 × 10A × 110V / 1000 = 1.905kVA

Conversion with line to neutral voltage

Again, the assumption here will be that all the loads in the system are balanced. As such, the apparent poser S, in kVA is calculated by multiplying the line to neutral RMS VL-N voltage, in volts (V) by the phase current I, in amps (A), multiplied by 3 and the dividing the result by 1,000.

S(kVA) = 3 × I(A) × VL-N(V) / 1000

Therefore:

kVA is equal to 3 times the volts times amps divided by 1,000.

Kilovolt-amps = 3 × amps × volts / 1000

Or

kVA = 3 × A × V / 1000

Example

What is the apparent current in kVA in an electrical circuit, whereby the line to neutral RMS voltage is 110V and the phase current is 11A?

Solution

S = 3 × 10A × 110V / 1000 = 3.3kVA