What is induction motor and how it works?

An induction motor (also known as an asynchronous motor) is a commonly used AC electric motor. In an induction motor, the electric current in the rotor needed to produce torque is obtained via electromagnetic induction from the rotating magnetic field of the stator winding.

What is the working principle of induction motor?

The motor which works on the principle of electromagnetic induction is known as the induction motor. Electromagnetic induction is the phenomenon in which the electromotive force induces across the electrical conductor when it is placed in a rotating magnetic field.

What is meant by induction 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 are the advantages of induction motor?

Induction Motor Advantages:

  • Induction motors are simple and rugged in construction. …
  • Induction motors are cheaper in cost due to the absence of brushes, commutators, and slip rings.
  • They are maintenance free motors unlike dc motors and synchronous motors due to the absence of brushes, commutators and slip rings.
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Why is 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 is difference between induction motor and synchronous motor?

The induction motor has self-starting torque whereas the synchronous motor is not self starting. It has to be run up to synchronous speed by any means before it can be synchronized to AC supply. A synchronous motor can be operated with lagging and leading power by changing its excitation.

What are the 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.

24.04.2017

What is the another name of induction motor?

An induction motor (also known as an asynchronous motor) is a commonly used AC electric motor. In an induction motor, the electric current in the rotor needed to produce torque is obtained via electromagnetic induction from the rotating magnetic field of the stator winding.

What are the types of motors?

Types of Electric Motors

  • AC Brushless Motors. AC brushless motors are some of the most popular in motion control. …
  • DC Brushed Motors. In a DC brushed motor, brush orientation on the stator determines current flow. …
  • DC Brushless Motors. …
  • Direct Drive. …
  • Linear Motors. …
  • Servo Motors. …
  • Stepper Motors.
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6.09.2016

What are the two main parts of an induction motor?

Like any other electrical motor, induction motor have two main parts namely rotor and stator.

What are the disadvantages of induction training?

Induction

Advantages Disadvantages
Employees will settle quickly into the job Takes time so reduces output
Employees will be made aware of important health and safety issues before starting the job
Employees will understand who the main personnel in the organisation are

Why do we use synchronous motors?

In higher power industrial sizes, the synchronous motor provides two important functions. First, it is a highly efficient means of converting AC energy to work. Second, it can operate at leading or unity power factor and thereby providing power-factor correction.

Where is induction motor used?

Single-phase induction motors are used extensively for smaller loads, such as household appliances like fans. Although traditionally used in fixed-speed service, induction motors are increasingly being used with variable-frequency drives (VFD) in variable-speed service.

Is an induction motor AC or DC?

Induction motors, linear motors, and synchronous motors, for example, are all types of AC motors. … AC motors can also include variable-frequency drives to control the motor’s speed and torque, while DC motors are available in self-excited and separately excited-type models.

What does induction mean?

1 : the act or process of placing someone in a new job or position induction into the Hall of Fame. 2 : the production of an electrical or magnetic effect through the influence of a nearby magnet, electrical current, or electrically charged body. induction.

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