Q3) A d.c. motor takes an armature current of 110 A at 480 V. The armature circuit resistance is0.2 Q. The machine has 6-poles and the armature is lap-connected with 864 conductors. The fluxper pole is 0.05 Wb. Calculate:(a) the speed and(b) the torque developed by the armature

Answered: Q3) A d.c. motor takes an armature…

Delmar's Standard Textbook Of Electricity

7th Edition

ISBN:9781337900348

Author:Stephen L. Herman

Publisher:Stephen L. Herman

Chapter5: Resistors

Section: Chapter Questions

Problem 1PA

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Q3) A d.c. motor takes an armature current of 110 A at 480 V. The armature circuit resistance is 0.2 Q. The machine has 6-poles and the armature is lap-connected with 864 conductors. The flux per pole is 0.05 Wb. Calculate: (a) the speed and (b) the torque developed by the armature