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

How to convert kilovolt-amps (kVA) to electric current in amps (A)

To convert the phase current *I*, in amps (A), you should multiply the apparent poser *S* in kilovolt-amps (kVA) by 1,000 and then divide the result by the RMS voltage *V*, in volts (V).

*I*_{(A)} = 1000 × *S*_{(kVA)} / *V*_{(V)}

Therefore:

Amps (A) = 1,000 times the kV/ Volts (V)

Amps = 1000 × kVA / volts

Or

A = 1000 × kVA / V

**Example
**

Calculate the phase current, in amps, given that the RMS voltage is 110V and the apparent power is 4 kVA.

*Solution*

*I* = 1000 × kVA/V

*I* = 1000 × 4kVA / 110V = 36.36A

**Calculation with line to line voltage**

The phase current *I*, in this case, is calculated by multiplying the apparent power *S* by 1,000 and then dividing the result by the line in line RMS voltage *V _{l-l}* in volts (V) times the square root of 3

*I*_{(A)} = 1000 × *S*_{(kVA)} / (*√*3 × *V*_{L-L(V)} )

Therefore:

Amps = 1000 times the kilovolt-amps divided by the volts times the root of 3

Amps = 1000 × kVA / (*√*3 × volts)

Or

A = 1000 × kVA / (*√*3 × V)

**Example
**

Calculate the phase current, given that the line in line RMS voltage is 110V and the apparent power is 4kVA.

*Solution*

*I =* 1000 × kVA/ (*√*3 × V)

*I* = 1000 × 4kVA / (*√*3 × 110V) = 20.995A

**Calculation with line to neutral voltage:**

In this case, the phase current *I*, in amps (A) is calculated by multiplying the apparent power *S*, in kilovolt-amps (kVA) by 1,000 and then dividing the result with 3 times the RMS line in line Voltage, in volts (V).

*I*_{(A)} = 1000 × *S*_{(kVA)} / (3 × *V*_{L-N(V)} )

Therefore:

Current in amps = 1000 times the apparent power in kVA divided by 3 times the Volts

Amps = 1000 × kVA / (3 × volts)

Or

A = 1000 × kVA / (3 × V)

**Example
**

Work out the phase current in an electrical circuit where the line in line RMS voltage is 110V and the apparent power is 4kVA.

*Solution*

*I*_{(A)} = 1000 × *S*_{(kVA)} / (3 × *V*_{L-N(V)} )

*I* = 1000 × 4kVA / (3 × 110V) = 12.121A