A 4 pole, 250 dc shunt motor has a lap connected armature with 960 conductors. The flux per pole is 2 x 10-2Wb. Calculate the torque developed by the armature and the useful torque in N-m when the current taken by the motor is 30A. The armature resistance is 0.12 ohm and the field resistance is 125ohm. The rotational losses amount to 825W

A 4 pole, 250 dc shunt motor has a lap connected armature with 960 conductors. The flux per pole is 2 x 10-2Wb. Calculate the torque developed by the armature and the useful torque in N-m when the current taken by the motor is 30A. The armature resistance is 0.12 ohm and the field resistance is 125ohm. The rotational losses amount to 825W

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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