23: A. An 18.65 kW, 4-pole, 50 Hz, 3-phase induction motor has friction and windage losses of 2.5% of the output. The full-load slip is 4%. Find for full-load (1) the rotor Cu loss (2) the rotor input (3) the shaft torque (4) the gross electromagnetic torque.

23: A. An 18.65 kW, 4-pole, 50 Hz, 3-phase induction motor has friction and windage losses of 2.5% of the output. The full-load slip is 4%. Find for full-load (1) the rotor Cu loss (2) the rotor input (3) the shaft torque (4) the gross electromagnetic 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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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

Q: A. An 18.65 kW, 4-pole, 50 Hz, 3-phase induction motor has friction and windage
losses of 2.5% of the output. The full-load slip is 4%. Find for full-load (1) the
rotor Cu loss (2) the rotor input (3) the shaft torque (4) the gross electromagnetic
torque.

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