What is the principle of induction motor?

What is induction of a motor?

: an alternating-current motor in which torque is produced by the reaction between a varying magnetic field generated in the stator and the current induced in the coils of the rotor.

What is the working principle of asynchronous motor?

The operating principle of an asynchronous motor involves creating an induced current in a conductor when the latter cuts off the lines of force in a magnetic field, hence the name “induction motor”. The combined action of the induced current and the magnetic field exerts a driving force on the motor rotor.

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.

Why starters are used in induction motor?

The three phase induction motors are self-starting due to rotating magnetic field. But the motors show tendency to draw very high current at the time of starting. … Hence there should be a device which can limit such high starting current. Such a device which limits high starting current is called a starter.

IT IS INTERESTING:  How do you increase engine power?

What are the 3 types of DC motors?

There are 3 main types of DC motor that are available:- Series, Shunt and Compound. These terms relate to the type of connection of the field windings with respect to the armature circuit.

Which motor Works asynchronous speed?

Difference between Synchronous and Asynchronous Motor

Function Synchronous Motor
Cost It is expensive
Efficiency High efficient
Speed The motor speed does not rely on the disparity in the load.
Current supply The current supply can be given to the rotor in the motor

Why induction motors are called asynchronous?

Because it runs at a speed less than synchronous speed. Because induction motor can not rotate at synchronous speed it always rotate less than synchronous speed. in short, induction motor never rotates at synchronous speed so it called asynchronous motor.

What are the 2 types of induction motor?

Single-phase induction motors and three-phase induction motors are the two main types of induction motors.

Where is induction motor used?

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.