A 4 pole dc shunt motor has a flux per pole of 0.04 Wb and the armature is lap wound with 720 conductors. The shunt field resistance is 240 ohms and the armature resistance is 0.2 ohm. Brush contact drop is 1V per brush .Determine the speed of the machine when running as a motor taking 60 A and as a generator supplying 120A.The terminal voltage is 480V in each case.

A 4 pole dc shunt motor has a flux per pole of 0.04 Wb and the armature is lap wound with 720 conductors. The shunt field resistance is 240 ohms and the armature resistance is 0.2 ohm. Brush contact drop is 1V per brush .Determine the speed of the machine when running as a motor taking 60 A and as a generator supplying 120A.The terminal voltage is 480V in each case.

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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