1. Output power: under certain volume and weight limitations, the output power of the motor can be adjusted by changing the number of poles of the motor. The output power of the motor is related to the magnetic field strength of the motor, the more the number of poles, the lower the magnetic field strength, the output power is also reduced accordingly; the fewer the number of poles, the higher the magnetic field strength, the output power is also increased accordingly.
2. Rated speed: the rated speed of the motor refers to the maximum speed of the motor under rated voltage and rated load. The more poles, the slower the change of magnetic field, the lower the rated speed of the motor; the fewer poles, the faster the change of magnetic field, the higher the rated speed of the motor.
3. Maximum speed: The maximum speed of a motor is the speed that the motor can reach at maximum voltage and no load. For the same type of motor, the more the number of poles, the slower the change of magnetic field, the maximum speed of the motor is relatively low; the less the number of poles, the faster the change of magnetic field, the maximum speed of the motor is relatively high.
