Inputs to prepare
Enter motor shaft kW, voltage, efficiency, running power factor and the starting-current multiplier from the nameplate or manufacturer.
GENKVA factory calculator
Motor Starting Calculator
Estimate motor running current, starting current and starting kVA.
Use nameplate efficiency, power factor, voltage and the starting-current multiplier for a preliminary motor-start review.
Interactive factory tool
Enter your project data
Need the factory to verify it?
Send the calculated values with your load list, fuel information and electrical specification.
What the result means
The calculator estimates running current, starting current and starting kVA for a balanced three-phase motor.
How to use it
Use the result as one input to generator sizing. The actual acceleration time, driven load and starter type require manufacturer data and transient review.
Method and limits
A useful estimate, not a final equipment selection.
We show the calculation and keep the inputs visible. Complex loads, harmonics, voltage and frequency dip, load steps, altitude, temperature and exact machine data can change the final result.
For critical systems, motor-rich loads or final procurement, send the result to our factory and have the complete power system reviewed by qualified engineers.