Q.17 A 440 V dc shunt motor has no-load speed of 2000 rpm. It is running at 1000 rpm at full load torque, reduced armature voltage and full field. Its load torque is reduced to 50% of rated value with armature voltage and field voltage held constant at previous values; the speed increases to 1050 rpm. Find armature voltage drop at full load. Neglect effect of armature reaction.

Q.17 A 440 V dc shunt motor has no-load speed of 2000 rpm. It is running at 1000 rpm at full load torque, reduced armature voltage and full field. Its load torque is reduced to 50% of rated value with armature voltage and field voltage held constant at previous values; the speed increases to 1050 rpm. Find armature voltage drop at full load. Neglect effect of armature reaction.

Introductory Circuit Analysis (13th Edition)

13th Edition

ISBN:9780133923605

Author:Robert L. Boylestad

Publisher:Robert L. Boylestad

Chapter1: Introduction

Section: Chapter Questions

Problem 1P: Visit your local library (at school or home) and describe the extent to which it provides literature...

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