What is a 3 phase induction motor?

A 3 phase induction motor is an electric AC motor that operates using a three-phase supply of electricity. It is one of the most frequently used types of electric motors which can be employed in multiple industrial areas due to its modest design, high efficiency, and reliability.

How does a 3 phase induction motor work?

A 3-phase induction motor operates based on a rotating magnetic field produced by a stator. When the three-phase electric current reaches the stator windings of the motor, a rotating magnetic field appears. Due to this field, a current is inducted in rotor bars, producing another set of magnetic fields that interact with the stator field and result in motor rotation.

What are the key advantages of 3 phase induction motors?

The key advantages of 3 phase induction motors include durability and minimum maintenance required as well as high torque, the possibility to withstand bearing overloads, and the capability to operate at high speeds.

3 phase induction motors are widely used in numerous industrial applications, such as HVAC and other systems, ship propulsion, electric vehicles, and general industrial and commercial machinery.

What are their types?

Squirrel Cage Induction Motors and Slip Ring or Wound Rotor Induction Motors are the two main types of 3 phase induction motors. The former doesn┬Æt contain wires attached to the rotor end rings, while in the latter type the rotor features an external field winding in which the rotor inducted current is produced.

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3 phase induction motor

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