Generator Size to Start Motors
Instructions: Fill in the HP of the motor(s) in their starting sequence, select the start method (DOL - Direct On Line or Star Delta) and
press Calculate. 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
The generator size must be equal or greater than the
total consumption of all applications. The higher starting
requirement must he taken into account accordingly.
To maximise the generator potential, the largest electrical
motor should be started on its own and further appliances
should only be switched on thereafter.