6. An eight-pole wound rotor induction motor op- erating on 60 Hz supply is driven at 1800 r.p.m. by a prime mover in the opposite direction of revolving magnetic field. The frequency of rotor current is (a) 60 Hz (c) 180 Hz (b) 120 Hz (d) none of the above.

Delmar's Standard Textbook Of Electricity
7th Edition
ISBN:9781337900348
Author:Stephen L. Herman
Publisher:Stephen L. Herman
Chapter32: Three-phase Motors
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Please solve No. 6 below. Please provide a clear and readable solution. I appreciate any help you can give me. The course subject is Electrical Machines. NOTE: The answer is given below(The answer is letter C.); show the solution. Please follow this format: Write the Given, Required, and Solution, then Box the Final answer. Thanks!!!
6. An eight-pole wound rotor induction motor op-
erating on 60 Hz supply is driven at 1800 r.p.m.
by a prime mover in the opposite direction of
revolving magnetic field. The frequency of rotor
current is
(a) 60 Hz
(c) 180 Hz
(b) 120 Hz
(d) none of the above.
Transcribed Image Text:6. An eight-pole wound rotor induction motor op- erating on 60 Hz supply is driven at 1800 r.p.m. by a prime mover in the opposite direction of revolving magnetic field. The frequency of rotor current is (a) 60 Hz (c) 180 Hz (b) 120 Hz (d) none of the above.
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