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Electrical Machine Design
book

Electrical Machine Design

by V. Rajini, V. S. Nagarajan
May 2018
Beginner to intermediate content levelBeginner to intermediate
648 pages
14h 36m
English
Pearson Education India
Content preview from Electrical Machine Design

7

DC MACHINE

7.1 Introduction

DC machines were widely used in power generation and distribution in earlier days. DC machines can conveniently work both in generating mode and in motoring mode. DC generators were the prime source of supply both to industries and to domestic consumers during Edison’s period. All electric networks were based on DC in those days. However, the AC systems due to their flexibility, lower cost of generation and transmission and higher efficiency, replaced the DC systems and now AC systems are almost universally used.

However, DC machines are used in many applications like aircrafts, ships, wind mills, etc. as DC machines are capable of acting both as a motor and as a generator. In generating mode, the machine is driven ...

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Publisher Resources

ISBN: 9789353063740