# Construction And Working Principle Of Three Phase Induction Motor Pdf

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Construction wise three phase induction motor has two main parts namely stator and rotor. It is the outer body of the three phase induction motor. Its functions are to support the stator core and winding and to protect the inner parts of the machine.

## Induction Motor: Working Principle, Types, & Definition

The motor which works on the principle of electromagnetic induction is known as the induction motor. The electromagnetic induction is the phenomenon in which the electromotive force induces across the electrical conductor when it is placed in a rotating magnetic field. The stator and rotor are two essential parts of the motor. The induction motor is the single excited motor, i. The term excitation means the process of inducing the magnetic field on the parts of the motor. The figure below shows the rotating magnetic field set up in the stator. Consider that the rotating magnetic field induces in the anticlockwise direction.

A 3 phase squirrel cage induction motor is a type of three phase induction motor which functions based on the principle of electromagnetism. The speed of operation : For a given frequency, induction motor always run at a speed less than synchronous speed Ns. For a given frequency, synchronous motor always runs at a constant speed called as synchronous speed whatever the amount of load it may be on it. Effect of load on the speed of the rotor. The speed.

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## Know Basics of 3 Phase AC Induction Motor and Its Control using SVPWM

Facebook Twitter. Three Phase Induction Motor:. The three phase induction motors are the most widely used electric motors in the industry. They run at essentially constant speed from no-load to full-load. However, the speed is frequency dependent and consequently, these motors are not easily adapted to speed control.

Recieve free updates Via Email! Home Electrical machines Power system Ask a question Contact electricaleasy. Share: Facebook Twitter Linkedin. Induction Motors are the most commonly used motors in many applications. These are also called as Asynchronous Motors , because an induction motor always runs at a speed lower than synchronous speed. Or they can be divided according to type of rotor - i Squirrel cage motor and ii Slip ring motor or wound type.

## 3 Phase Induction Motor – Construction and Working

Click Here To Download Now. The popularity of 3 phase induction motors onboard ships is because of their simple, robust construction, and high-reliability factor in the sea environment. An induction motor can be used for different applications with various speed and load requirements.

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Some of the advantages like low cost, rugged design less complex, and easy to maintain AC motors results in many of the industrial operations are performed with the use of AC drives than DC drives. AC induction motor is a special type of electric motor having its own typical characteristics and performance in terms of starting, speed control, protections, and so on. The performance over a wide range of applications makes three-phase induction motors accountable for 85 percent of the installed capacity of the industrial driving systems. The three-phase AC induction motor is a rotating electric machine that is designed to operate on a three-phase supply. This 3 phase motor is also called as an asynchronous motor.

### Three Phase Induction Motor Construction & Working Principle

There are two types of 3-phase induction motor based on the type of rotor used:. Squirrel cage induction motor. Slip ring induction motor.

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A SIMPLE explanation of how a 3 phase induction motor works. We also discuss the CONSTRUCTION of a three phase motor – including its.

#### Three Phase Induction Motor Construction & Working Principle

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Like any electric motor, a 3-phase induction motor has a stator and a gilariverdistrict.org stator carries a 3-phase winding (called stator winding) while the rotor carries a.

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