Answered: A 220 V DC shunt motor takes 3 A at no-…

A 220 V DC shunt motor takes 3 A at no- load. It draws 25 A when running at full- load at 1500 rpm. The armature and shunt 220 2, respectively. The no-load speed in rpm resistances are 0.5 2 and

Introductory Circuit Analysis (13th Edition)

13th Edition

ISBN:9780133923605

Author:Robert L. Boylestad

Publisher:Robert L. Boylestad

Chapter1: Introduction

Section: Chapter Questions

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Concept explainers

Speed control of motor

Speed control by DC motor-speed controller is required to realize variable speed drive. Whenever a motor drives a particular load, it is called drive, and variable speed drive refers to a load requiring variable speed. All this is obtained by a DC motor speed controller.

Question

Find no load speed in rpm

A 220 V DC shunt motor takes 3 A at no-
load. It draws 25 A when running at full-
load at 1500 rpm. The armature and shunt
220 2,
respectively. The no-load speed in rpm
resistances
are
0.5
2 and

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