1.a) Explain the internal structure of an threephase induction motor.b) Explain the reason that conductor bars of the rotor are placed inclined with respect to the horizontal axis.c) Explain the meaning of the slip rate.d) What is the difference of the wound rotor three phase induction motor. For what purpose is it used?e) Explain the losses in an three phase induction motor.f) Explain the locked motor torque.g) Explain the pull up torque.h) Explain the breakdown torque.i) Explain the rated(nominal) torque.

Electrical machines can be either generators or motors. They can be either AC machines or DC…

a) Explain the internal structure of an threephase induction motor. b) Explain the reason that conductor bars of the rotor are placed inclined with respect to the horizontal axis. c) Explain the meaning of the slip rate.

a) Explain the internal structure of an threephase induction motor. b) Explain the reason that conductor bars of the rotor are placed inclined with respect to the horizontal axis. c) Explain the meaning of the slip rate.

Delmar's Standard Textbook Of Electricity

7th Edition

ISBN:9781337900348

Author:Stephen L. Herman

Publisher:Stephen L. Herman

Chapter35: Harmonics 916

Section: Chapter Questions

Problem 3RQ: Would a positive-rotating harmonic or a negative-rotating harmonic be more harmful to an induction...

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Concept explainers

Three Phase Induction Motor

The induction motor is an electric motor that runs on AC (alternating current) and it is of two type single phase motor that work on single-phase power supply and three-phase motor that work on three-phase power supply.

Question

1.
a) Explain the internal structure of an threephase induction motor.
b) Explain the reason that conductor bars of the rotor are placed inclined with respect to the horizontal axis.
c) Explain the meaning of the slip rate.
d) What is the difference of the wound rotor three phase induction motor. For what purpose is it used?
e) Explain the losses in an three phase induction motor.
f) Explain the locked motor torque.
g) Explain the pull up torque.
h) Explain the breakdown torque.
i) Explain the rated(nominal) torque.

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