Motor Pole Calculator
Calculate the number of poles in an AC motor based on frequency and RPM
Motor Pole Calculator
Essential for motor synchronization
Results:
Motor Poles: 0.00
How to Use the Calculator
Input Frequency
- Enter the electrical frequency in Hertz (Hz).
- Common values are 50 Hz or 60 Hz.
Input RPM
- Enter the motor's rotational speed in Revolutions Per Minute (RPM).
- This is typically the synchronous speed or rated speed.
Get Motor Poles
- Click "Calculate" to find the number of motor poles.
- The result will be displayed in the results box.
Motor Pole Fundamentals
Synchronous Speed
The synchronous speed of an AC motor is determined by the frequency of the power supply and the number of poles in the motor. It's the speed at which the magnetic field rotates.
Motor Poles
- Poles are pairs of magnetic poles in the motor's stator.
- They dictate the motor's synchronous speed for a given frequency.
- More poles mean lower synchronous speed.
Key Formula:
Motor Poles = (120 × Frequency) / RPM
Calculation Formula
Motor Poles:
Poles = (120 × Hz) / RPM
Example Calculation
Given:
Frequency (Hz): 60 Hz
RPM: 1800 RPM
Poles = (120 × 60) / 1800
Poles = 7200 / 1800
Motor Poles = 4