Single Phase Motor Capacitor Calculator

July 26, 2023

6310

This is a calculator for single phase motor capacitors.

With the support of this calculator, can determine –

For calculating the starting capacitor value of a single phase motor

Choose the most relevant option.
Enter the wattage of the motor. If the available motor power is in horsepower, convert it to kW by multiply it by 746 watts.
Enter the input voltage.
Enter the value of the power factor (cosØ). If not sure, enter 0.8.
The result would be displayed by the calculator.

Formula: C = (I x 10⁶) / 2 Π f V

Where,

I = Motor current in amperes.

F = Motor rated frequency

V = Motor rated voltage

For calculating the running capacitor value of a single phase motor

Choose the most suitable option.
Enter the wattage of the motor. If the available motor power is in horsepower, convert it to kW by multiply it by 746 watts.
Enter the input voltage.
Enter the rated frequency.
Enter the single phase motor’s efficiency.
The result would be displayed by the calculator.

Formula: C = [(P x η) / (V² x f)] x 1000

Where,

η = Motor efficiency

F = Motor rated frequency

V = Motor rated voltage