An induction motor or asynchronous motor is an AC electric motor in which the electric current in the rotor needed to produce torque is obtained by electromagnetic induction from the magnetic field of the stator winding. An induction motor can therefore be made without electrical connections to the rotor.
What appliances use induction motors?
Used in almost every process, induction motors are mainly used in water pumps, kitchen appliances, fans and air conditioners, automobiles and common industrial machinery like boiler pumps and compressors.
What 3 things are needed for an induction motor to work?
A 3-phase induction motor includes two essential components namely the stator & the rotor. In this motor, the stationary part is the stator whereas the rotating part is the rotor. In this motor, the load is connected to the shaft. Three-phase armature winding can be wound over the stator.
What are the types of induction motor?
Types of Induction Motor: A Concise and Useful Guild
- Types of Single-Phase Induction Motors. Split Phase Induction Motors. 2&3. Capacitor Start and Capacitor Start Capacitor Run Induction Motors. …
- Types of Three-Phase Induction Motors. Squirrel Cage Induction Motor. Slip-ring or Wound Rotor Induction Motor.
What is the principle of a motor?
The electric motor works on the principle of magnetic effects of current. Its principle is when a rectangular coil is placed in a magnetic field and current is passed through it, the coil rotates as a result of the forces acting on the coil.
What is difference between induction motor and synchronous motor?
A three-phase synchronous motor is a doubly excited machine, whereas an induction motor is a single excited machine. The armature winding of the synchronous motor is energized from an AC source and its field winding from a DC source. … An induction motor operates only at a lagging power factor.
What are the main parts of induction motor?
Parts of Induction Motors
- Stator. The stator is the stationary portion of the motor and delivers a rotating magnetic field to interact with the rotor. …
- Rotor. The rotor is the central component of the motor, and is fixed to the shaft. …
- Shaft. The motor shaft is fixed within the rotor, and rotates with it. …
- Bearings. …
Can induction motor run at synchronous speed?
So, theoretically, the Induction motor can never run at synchronous speed. … But due to the reduction of speed, again lag influx will be achieved, and the motor will continue to move at this speed due to flux difference between rotor and stator. In short, an induction motor cannot run at induction speed.