There are basically two types of induction motor that depend upon the input supply - single phase induction motor and three phase induction motor. Rotor winding of an induction motor may be of two types: (a) squirrel-cage type and (b) wound type. Depending on the rotor winding induction motors are classified into two groups [1–3]: (i) squirrel-cage type induction motor and (ii) wound-rotor type induction motor. This page introduces induction motors. The page includes the working principle of an induction motor and also shows different types of.


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Windings - copper or aluminum wire insulated and wrapped in coils around iron cores. Each nub on the iron stator forms a different pole, these poles will reverse, causing the rotor to turn.

Types of Three Phase Induction Motor

Installing copper coils in the stator of a large induction motor Below: Induction motors with armatures removed. No brushes to wear out! Torque Motor - induction motor capable of operating indefinitely while stalled when rotor is blocked from turning.

This motor is not damaged when most motors would be types of induction motors stalled.

  • Induction Motor | Working Principle | Types of Induction Motor | Electrical Study App by SARU TECH
  • Induction Motor | Working Principle | Types of Induction Motor
  • Induction Motors
  • Induction Motors

Inventors of the Induction Types of induction motors It took over 60 years to arrive at the invention of the induction motor, here are some of the most prominent contributors to the invention. Otherwise, rotor will not remain concentric with stator which will give rise to unbalanced magnetic pull.

Stator Core The main function of the stator core is to carry alternating flux. In order to reduce the eddy current losses the stator core is laminated.

Induction motor - Wikipedia

This laminated type of structure is made up of stamping which is about 0. All the stamping are stamped together to form stator core, which is types of induction motors housed in stator frame. The stampings are generally made up of silicon steel, which reduces the hysteresis loss.

We will discuss it now. So the rotating magnetic field has the same phase difference which will make the rotor to move.

Induction Motor | Working Principle | Types of Induction Motor

If we consider three phases a, b, and c when phase a gets magnetized, the rotor will move towards the phase a winding a, in the next moment phase b will get magnetized and it will attract the rotor and then phase c. So the rotor will continue to rotate. It types of induction motors only one phase still it makes the rotor to rotate, so it is quite interesting.

Before that, we need to types of induction motors why a single phase induction motor is not a self-starting motor and how we overcome the problem.

Induction motor

The normal running windings within such a single-phase motor can cause the rotor to turn in either direction, so the starting circuit determines the types of induction motors direction.

In certain smaller single-phase motors, starting is done by means of a shaded pole with a copper wire turn around part of the pole.


The current induced in this types of induction motors lags behind the supply current, creating a delayed magnetic field around the shaded part of the pole face. This imparts sufficient rotational field energy to start the motor. These motors are typically used in applications such as desk fans and record players, as the required starting torque is low, and the low efficiency is tolerable relative to the reduced cost of the motor and starting method compared to other AC motor designs.

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