Amps to kVA Calculator

kVA to Amps Conversion

To convert kilovolt-amperes (kVA) to amps, you need to know the voltage (V) and whether it’s a single-phase or three-phase system, because kVA measures apparent power while amps measure current.

Single Phase Calculation

Think of this like water flowing through a pipe. The current (Amps) is like the water flow, and voltage is like the pressure pushing it. Here’s how we calculate it:

I(A) = 1000 × S(kVA) / V(V)

  • I(A): The current in Amperes – this is what we’re solving for
  • S(kVA): The apparent power in kilovolt-amps – think of this as the total power
  • V(V): The voltage in Volts – this is like the electrical ‘pressure’

Three Phase Calculations

Line to Line Voltage

In industrial settings, we often work with three-phase power. Here’s how we calculate it:

I(A) = 1000 × S(kVA) / (√3 × VL-L(V))

  • I(A): Current flowing through each phase
  • S(kVA): Total three-phase apparent power
  • VL-L(V): Voltage between any two phases
  • √3: A magic number that helps us account for three-phase relationships

Line to Neutral Voltage

Sometimes, especially in residential settings, we work with line to neutral measurements:

I(A) = 1000 × S(kVA) / (3 × VL-N(V))

  • VL-N(V): Voltage between any phase and neutral
  • Other components remain the same as above

Example

Imagine you’re working with a single-phase system in your home:

  • Your appliance shows: 5 kVA
  • Standard home voltage: 230 V

Let’s solve it:

I(A) = 1000 × 5 kVA / 230 V = 21.74 A

🎉 Your circuit needs to handle approximately 21.74 Amps!

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