Power Usage Calculator
Calculating Ampere (I), given kVA.
Converting kVA to kW
Converting kW to kVA
Converting kW to HP
What size genset is needed to start a 3 phase electric motor Direct on Line (DOL) start
Generator Size to Start Motors
You only need to fill in the columns coloured in red.
Fill in the HP of the motor(s) in their starting sequence, select the start method (Direct On Line or Star Delta) and
The required generator size will then be displayed at the bottom.
* 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.