Electrical Engineering (EE) Exam > Electrical Engineering (EE) Videos > Electrical Machines for Electrical Engg. > Induction Motor Operation
Induction Motor Operation Video Lecture | Electrical Machines for Electrical Engg. - Electrical Engineering (EE)
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FAQs on Induction Motor Operation Video Lecture - Electrical Machines for Electrical Engg. - Electrical Engineering (EE)
| 1. What is an induction motor? |  |
An induction motor is an AC electric motor in which the electric current in the rotor is induced by electromagnetic induction from the magnetic field of the stator winding. It is the most commonly used type of motor in various industrial applications.
| 2. How does an induction motor work? | |
An induction motor works on the principle of electromagnetic induction. When an alternating current flows through the stator winding, it creates a rotating magnetic field. This rotating magnetic field induces a current in the rotor, which in turn creates a magnetic field. The interaction between the stator and rotor magnetic fields produces a torque, causing the rotor to rotate and drive the mechanical load.
| 3. What are the main components of an induction motor? | |
The main components of an induction motor include the stator, rotor, and the air gap between them. The stator consists of a laminated core with stator windings, which are usually made of copper wire. The rotor can be either squirrel cage or wound type, and it is also made of laminated core and conductive bars or windings.
| 4. How is the speed of an induction motor controlled? | |
The speed of an induction motor can be controlled by varying the frequency of the power supply. By changing the frequency, the synchronous speed of the rotating magnetic field can be adjusted, which in turn affects the speed of the motor. Other methods of speed control include using variable voltage or variable frequency drives.
| 5. What are the advantages of using induction motors? | |
Some advantages of using induction motors include their simplicity, low cost, and high reliability. They do not require brushes or commutators like DC motors, resulting in reduced maintenance. Induction motors are also more efficient and have a longer lifespan. Additionally, they can provide high starting torque and are suitable for a wide range of applications.
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Nov 24, 2024 Last updated |
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