kVA to amps calculator

kVA to amps calculator

Use this Online tools for Kilovolt-amps (kVA) to amps (A) calculator.Please choose  phase number from drop-down list,and input the apparent power(S)  in kilovolt-amps, voltage(V) in volts and click the Calculate button to obtain the result in amps

Select phase #:
kilovolt-amps: kVA
volts: V
Result (in amps): A





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

kVA to amps calculation formula in case of Single phase

I=The phase current I in amps
S=the apparent power S in kilovolt-amps
V=the Root Mean Square voltage V in volts

I(A) = 1000 × S(in kVA) / V(in Volts)

So that you can define Cuurent(I) in amps are equal to 1000 times KVA divided by Voltage(V).

amps(A) = 1000 × kVA / volts(V)
or you can re-write this formula like that
A = 1000 x kVA / V
Let’s take an example

Example#1
We need to find out the current(I) in amps of an electric circuit where power(S) is 5 kVA and root mean square voltage in the circuit is 100 volts
Apply formula for the Solution:
I = 1000 × 5kVA / 100V = 50A

kVA to amps calculation formula in case of 3 phase with line to line voltage

I=The phase current I in amps
S= the apparent power S in kilovolt-amps
VL-L= the line to line Root Mean Square voltage V in volts

I(A) = 1000 × S(in kVA) / (1.732 × VL-L(in Volts) )

So that you can define cuurent(I) in amps are equal to 1000 times KVa divided by the 1.732 times volts(V).

amps = 1000 × kVA / (1.732 × volts)

Let’s take an example
Example#2
We need to find out the current(I) in amps of an electric circuit where the power(S) is 5 kVA  and the line to line root mean square voltage supply is 150 volts in the circuit.
Apply formula for the Solution:
I = 1000 × 5kVA / (1.732 × 150V) = 19.236A

kVA to amps calculation formula in case of 3 phase with line to neutral voltage

I=The phase current I in amps
S=the apparent power S in kilovolt-amps
VL-Nthe line to line RMS voltage V in volts

I(A) = 1000 × S(in kVA) / (3 × VL-N(in Volts) )

So that you can define Current(I) in amps are equal to 1000 times Power in KVA divided by 3 times voltage.

amps(A) = 1000 × kVA / (3 × volts(V))
or
A = 1000 x kVA / (3 × V)
Let’s take an example

Example#3
We need to find out the current(I) in amps of an electric circuit where the power(S) is 5 kVA  and the line to neutral root mean square voltage supply is 150 volts in the circuit.
Apply formula for the Solution:
I = 1000 × 5kVA / (3*150V) = 1.11A

Ashok Patel

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