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POWER CALCULATOR

New York
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I
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THESE CALCULATORS WILL ASSIST 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
    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

    Generator Size to Start Motors

    Instructions: You only need to fill in the columns coloured in orange.
    Fill in the HP of the motor(s) in their starting squence, select the start method (Direct On Line or Star Delta) and press Evaluate. The required generator size will then be displayed at the bottom.

    3 Phase (415 volt @ 50Hz)
    1 Phase (240 volt @ 50Hz)

    Starting Sequence Motor HP Start Method
    DOL / StarDelta    		 Run Variable Phase Current Starting Value Total Run Current Total Start Current
    1 /
    2 /
    3 /
    4 /
    5 /
    6 /
    i
    Generator Size for Starting with: kVA*
    Generator Size for Running with: kVA*
    Generator Size Recommended: kVA*

     

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    * 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.

     

    Select Transformer Phase...

    Three Phase

    Single Phase

    Enter Two Known Values Below and Click "Calculate"

    KVA:  
    Volts:  
    Amps:  

    For simple on-line conversion: enter value and press button for conversion.

    Horsepower to Kilowatts
    Horsepower: HP
    Kw

    Kilowatts to Horsepower
    Kilowatts: Kw
    HP

    PS (Metric HP) to Kilowatts
    PS (Metric HP): PS
    Kw

    Kilowatts to PS (Metric HP)
    Kilowatts: Kw
    PS

    PS (Metric HP) to Horsepower
    PS (Metric HP): PS
    HP

    Horsepower to PS (Metric HP)
    Horsepower: HP
    PS

    Nm to lb/ft (torque)
    Newton metres: Nm
    lb/ft

    lb/ft to Nm (torque)
    Foot Pounds: lb/ft
    Nm

    MPH to Km/h
    Miles per Hour: MPH
    Km/h

    Km/h to MPH
    Km per Hour: Km/h
    MPH

     

    Where Professionals Go for their Diesel Generators, Gas Generators and Combustion Turbine Generator Requirements