According to construction single phase induction motor is more similar to the 3-phase induction motor expect-
1. It energized from a single phase supply
2. An additional switch is used i.e. centrifugal switch for starting purpose.
The stator winding of 1-phase induction motor is distributed type and rotor is the squirrel-cage type.
The flux produced in the stator winding of single-phase induction motor is obviously alternating in nature but it alternate along one space only, which is unable to produce a rotating magnetic field that’s why single phase induction motor is not self-stating.
As we know that a single phase induction motor is not self-starting so to overcome from that motor is temporarily converted into 2 phase motor. For those purpose motor is provided with extra winding, known is staring winding or auxiliary winding which is 90- degree electrically apart from main winding.
Type of 1-phase induction motor-
1. Split phase induction motor
2. Capacitor start or capacitor start induction run induction motor
3. Capacitor start capacitor run induction motor
4. Shaded pole induction motor
⤊- Click on the motor name to know more.