kVA to Amps Calculator
Convert kVA to Amps Easily
Single Phase Conversion
To find the current I in amps, multiply the apparent power S in kilovolt-amps by 1000 and divide by the voltage V in volts:
I(A) = 1000 × S(kVA) / V(V)
Where:
- I(A): Current in Amperes (A)
- S(kVA): Apparent power in kilovolt-amps (kVA)
- V(V): Voltage in Volts (V)
This formula is essential for electrical calculations in various applications.
Three Phase Conversion
Using Line to Line Voltage
For balanced loads, the phase current I in amps is calculated as follows:
I(A) = 1000 × S(kVA) / (√3 × VL-L(V))
Where:
- I(A): Current in Amperes (A)
- S(kVA): Apparent power in kilovolt-amps (kVA)
- VL-L(V): Line to line voltage in Volts (V)
This formula is crucial for three-phase systems in industrial settings.
Using Line to Neutral Voltage
For balanced loads, the phase current I in amps is calculated as:
I(A) = 1000 × S(kVA) / (3 × VL-N(V))
Where:
- I(A): Current in Amperes (A)
- S(kVA): Apparent power in kilovolt-amps (kVA)
- VL-N(V): Line to neutral voltage in Volts (V)
This formula is useful for residential electrical systems.
Example Calculation
For example, in a single-phase system with 5 kVA and 230 V, the current is:
I(A) = 1000 × 5 kVA / 230 V = 21.74 A
Thus, the current is approximately 21.74 Amps.
