How do I change the speed of the motor?
The speed and frequency of motor poles, polar slip on changing the motor starting capacitor, the direction of rotation of the motor can be changed by a pair of pole motor each phase is about more than 2800 rpm, 4 pole motor is about more than 1400 rpm, 6 pole is about more than 960,.
Three phase asynchronous motor speed formula is: n=60f/p (1-s) 1, do not change the synchronous speed control method. Winding motor speed control, chopper speed regulation, cascade speed regulation, and application of electromagnetic slip clutch, hydraulic coupling, oil film clutch and so on. 2. Change the speed regulation method of synchronous speed. Change the stator pole count of multi speed motor, change the stator voltage and frequency variable frequency speed regulation, there can be no commutation motor speed regulation, etc..
There are several schemes. The 1. is to change the ratio of the mechanical driving wheel and driven wheel driven by the motor. The 2. is to use mechanical transmission to change the speed of the motor. 3. is to use electronic governor to change the speed of the motor. As for which scheme to use, it depends on your environment.
