A 3-phase 6-pole Y connected induction motor is supplied from a 3-phase 50 Hz AC source. it draws an input power of 100 kW from the 3-phase supply. The losses (copper and iron) in the stator are 10 kW. The mechanical (friction and windage) losses are 5 kW. The slip is 5%. Find the following: a. The synchronous speed. b. The rotor speed. c. The power input to the rotor. d. The rotor copper losses. e. Mechanical power developed. f. Mechanical power output delivered to the load (Pout). g. The shaft torque.

A 3-phase 6-pole Y connected induction motor is supplied from a 3-phase 50 Hz AC source. it draws an input power of 100 kW from the 3-phase supply. The losses (copper and iron) in the stator are 10 kW. The mechanical (friction and windage) losses are 5 kW. The slip is 5%. Find the following: a. The synchronous speed. b. The rotor speed. c. The power input to the rotor. d. The rotor copper losses. e. Mechanical power developed. f. Mechanical power output delivered to the load (Pout). g. The shaft torque.

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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