Part (A):A 120 V DC shunt motor has an armature resistance of 0.4 0 and a brush voltdrop of 2 V.The rated full-load armature current is 85 A.Determine:1. The current at the instant of starting2. The percent of full load at the instant of startingPart (B):Calculate the various values (taps) of starting resistance to limit the current in themotor of Part (A) to:Case (i):•160% of rated load at the instant of startingCase (ii):•160% of rated load, when the counter emf is 30% of the armature voltageCase (iii):160% of rated load, when the counter emf is 60% of the armature voltagePart (C):Find the counter emf at full load, without starting resistance.

Answered: Image /qna-images/answer/35294744-bf0c-4084-bcf2-65eb29c352cc.jpg

Answered: Part (A): A 120 V DC shunt motor has an…

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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