What does induction motor do?

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 is an induction motor used for?

AC induction motors are the most common electric motors in the world. These simple, reliable and economical motors are found in refrigerators, washing machines and furnaces, as well as conveyors, pumps, winders, wind tunnels and other industrial equipment.

What devices 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.

Why is it called induction motor?

This type of engine is also known as an induction motor. The asynchronous motor is based on the currents induced in the rotor from the rotating magnetic field of the stator. That’s why it’s called an induction machine.

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. …
  • Casing.
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What is the main disadvantage of synchronous motors?

Disadvantages or Demerits:



Synchronous motors requires dc excitation which must be supplied from external sources. Synchronous motors are inherently not self starting motors and needs some arrangement for its starting and synchronizing. The cost per kW output is generally higher than that of induction motors.

Can induction motor run at the 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.

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