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Power calculation

kVA conversion amp (I)

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Phase selection 1, 2, 3Generator (kVA)Voltage requirements=current (I)

KVA converts to kilowatts

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KVA kVA=kW kW

kW converted to kVA

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kW kW=KVA kVA

Kilogram converted to horsepower

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kW (kW)=Horse (HP)

Generator capacity required for direct start (DOL) three-phase motors

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Motor horsepower (HP)=Required generator capacity (KVA)

Start load demand for generator capacity

Description: Just fill in the data in the blue area in the table below.
1. Fill in the horsepower (HP) of each starter motor line by line according to the starting sequence of the motor. (If you start all at once, please add all the horsepower.)
2. Select the mode of each boot (direct boot or buck boot).
3. Press the “calculate” button.
The generator capacity you need will be displayed in the column.

Phase 3 (415 volt @ 50Hz)
Simplex (240 volt @ 50Hz)
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Startup orderMotor horsepower (HP)Startup method
???????????????? Direct start / buck start
Running changesphase currentStartup ratioAll running current required starting current
1 /
2 /
3 /
4 /
5 /
6 /

 

Start the required generator capacity: kVA*
Generator capacity required for operation: kVA*
Required generator capacity: kVA*
kVA Generator Size for Starting with: kVA*
kVA Generator Size for Running with: kVA*
kVA Generator Size recommended: kVA*

*Remarks: The above calculation is only a rough estimate, as there are still many factors not considered. Such as: use environment, motor efficiency, and heat loss.

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