Induction Machine | GATE Notes & Videos for Electrical Engineering - Electrical Engineering (EE) PDF Download

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FAQs on Induction Machine - GATE Notes & Videos for Electrical Engineering - Electrical Engineering (EE)

1. What is an induction machine in electrical engineering?
Ans. An induction machine is an AC electric motor that operates on the principle of electromagnetic induction, where a rotating magnetic field is generated to induce currents in the rotor windings, causing it to rotate.
2. How does an induction machine work?
Ans. An induction machine works by using a rotating magnetic field produced by the stator windings to induce currents in the rotor windings. These induced currents create a magnetic field in the rotor that interacts with the stator's magnetic field, causing the rotor to rotate.
3. What are the main types of induction machines?
Ans. The main types of induction machines are squirrel cage induction motors, which have a simple and robust design, and wound rotor induction motors, which allow for external resistance to be added to the rotor circuit for improved control.
4. What are the advantages of using induction machines?
Ans. Some advantages of using induction machines include high efficiency, low maintenance requirements, simple construction, and the ability to operate in harsh environments.
5. How can the efficiency of an induction machine be improved?
Ans. The efficiency of an induction machine can be improved by using premium efficiency motors, optimizing the design for specific applications, reducing losses in the motor, and utilizing variable speed drives for better control of the motor's speed and efficiency.
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