What is a 3 Phase Induction Motor?
A three-phase induction motor is a type of AC induction motor that deals with a phase supply when diverged from the single-phase induction motor where the single-phase supply is supposed to work. The three-phase supply current makes an electromagnetic field in the stator winding which prompts the production of the torque in the rotor bending of the three-phase induction motor having a magnetic field. Next, we will be Going Through Faraday’s Law of Induction Motor.
Faraday’s Law of Induction Motor
Faraday’s law of electromagnetic induction is a significant decision that figures out the fundamental movement of a three-phase induction motor. It was sorted out by Michael Faraday and portrays the association between a changing magnetic field and the prompted electromotive force (EMF).
The basic idea of Faraday’s regulation is summarized as follows
Exactly when the attractive field around a conductor changes, it induces an electromotive power (EMF) in the conductor. The size of the induced EMF corresponds comparatively with the speed of progress of magnetic flux through the conductor.
- Rotating Magnetic Field : In a 3-phase induction motor, three arrangements of windings are set 120 degrees separated in space. At the point when a three-phase AC voltage is applied to these windings, it delivers a rotating magnetic field.
- Interaction with Rotor Conductors : The rotating magnetic field induces an EMF in the rotor conductors because of Faraday’s law. As the magnetic field rotates, it cuts across the rotor conductors, causing an adjustment of attractive motion.
- Generation of Current in Rotor : The induced EMF in the rotor conductors causes the progression of current in the rotor. This current in the rotor conductors connects with the magnetic field, creating a torque that makes the rotor turn.
- Rotor Movement and Synchronization : The rotor begins to follow the rotating magnetic field, endeavoring to find its rotational speed. The asynchronous development (slip) between the rotor and the turning magnetic field permits the motor to ceaselessly create torque and rotate.
3 Phase Induction Motor
The motor serves the purpose of converting electrical energy into mechanical form. Motors are categorized into AC motors and DC motors based on the type of power supply. In this post, we will talk about the different types of three-phase induction motors with working and applications.
The induction motors especially three-phase induction motors are by and large used AC motors to convey mechanical power in modern applications. 80% of the motor is a three-phase induction motor among all motors used in undertakings. Consequently, the induction motor is the fundamental motor among any excess types of motor.
Table of Content
- Three-Phase Induction Motor
- Three – Phase Power
- Construction
- Squirrel Cage Induction Motor
- Slip-Ring or Wound Rotor Induction Motor
- Working Principle
- Advantages
- Disadvantages
- Applications
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