Kilovolt-amps (kVA) to Amps (A) calculator
kVA to amps conversion
How to convert kilovolt-amps (kVA) to electric current in amps (A)
Single phase kVA to amps conversion
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
3 phase kVA to amps conversion
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 × VL-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 × VL-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 × VL-N(V) )
I = 1000 × 4kVA / (3 × 110V) = 12.121A
