Home › Electrical Engineering Forum › General Discussion › Current rating calculation of any kind of motor › Re: Current rating calculation of any kind of motor

2010/09/01 at 6:41 pm
#11328

admin

Keymaster

Hello,

What you mentioned it is not exactally correct, as kWh is energy , so as you mentioned :

“Now the formula,which you know, KWH = Line Current * Line Voltage * Power factor can be applied.

The only unknown value ‘current’ can be calculated.”

You must not use de time, as P= dW/dt, the correct is kW = Line Current * **1,73***Line Voltage * Power factor * efficiency.