Amps to kVA conversion formulas are used to calculate kVA from the known amperes. Given below is the list of formulas for different conversion:
- Single phase AC: (E * I) / 1000
- Two phase AC: (2* E * I) / 1000
- Three phase AC: (1.73 * E * I) / 1000
where E = volts; I = Amps
Let’s solve some examples:
Single Phase AC
Example: A single phase 220 volt generator delivers 20 Amps at full load setting. Find the kVA rating of generator.
Solution: kVA = (220 * 20)/1000 = 4.4 kVA
Two phase Four wire system
Example: A 400 V two-phase four-wire circuit has 15 Amps flowing through it. Fine the kVA.
Solution: kVA (400 * 15 * 2 )/1000 = 12 kVA
Three phase AC
Example: A three phase 400 volt generator delivers 10 Amps at full load. Determine the kVA rating of generator.
Solution: kVA = (400 * 10 * 1.73) / 1000 = 6.92 kVA