P5) A 440-V, 3-phase, 50-Hz, 4-pole Y-connected induction motor has a full load speed of 1475 rpm. The rotor has an impedance of 0.29 + j0.3 ohm at standstill. If the friction and windage losses amounting to 550W, calculate the following: a) Full load developed torque b) Rotor copper loss c) Output power d) Maximum developed torque e) Starting torque

P5) A 440-V, 3-phase, 50-Hz, 4-pole Y-connected induction motor has a full load speed of 1475 rpm. The rotor has an impedance of 0.29 + j0.3 ohm at standstill. If the friction and windage losses amounting to 550W, calculate the following: a) Full load developed torque b) Rotor copper loss c) Output power d) Maximum developed torque e) Starting torque

Delmar's Standard Textbook Of Electricity

7th Edition

ISBN:9781337900348

Author:Stephen L. Herman

Publisher:Stephen L. Herman

Chapter32: Three-phase Motors

Section: Chapter Questions

Problem 6RQ: Name three factors that determine the torque produced by an induction motor.

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