Power Calculator

 

These calculators will assit you in determining what size generator you may require or how to convert one unit of electricity to another.

They calculate:
  • Amperes when kVA is known
  • Converting kVA to kW
  • Converting kW to kVA
  • Converting kW to HP
  • kVA Required to run motors
  • Guide to units:
    HP = Horsepower
    kW = Kilo Watts
    kVA = Kilo Volt Amps
    I = Ampere or Current
    V = Volts
    PF = Power Factor

    Sizing Data - Power Consumption

    Calculating Ampere (I), given kVA.
    Phase
    1, 2, 3
    Generator
    kVA
    Volts
    Required
    = Ampere
    I


    Converting kVA to kW
    kVA = kW
    Converting kW to kVA
    kW = kVA

    Converting kW to HP
    kW = HP

    What size genset is needed to start a 3 phase electric motor Direct on Line (DOL) start
    HP of
    Motor
    = Generator
    kVA Required

    * Please NOTE the above calculations are an estimate only because other factors such as site conditions, motor efficiencies and iron losses are not taken into consideration.