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Electric Motors and Drives
book

Electric Motors and Drives

by Austin Hughes
October 2013
Beginner to intermediate content levelBeginner to intermediate
316 pages
13h 14m
English
Newnes
Content preview from Electric Motors and Drives
74 Electric Motors and Drives
coils with twice as many turns of wire having only half the
cross-sectional area of the original. The full speed would be
the same at
24
V as the original was at
12
V, and the rated
current would be
2
A, rather than 4 A. The input power and
output power would be unchanged, and externally there
would be no change in appearance, except that the terminals
might be a bit smaller.
Traditionally d.c. motors were classified as shunt, series,
or separately excited. In addition it was common to see
motors referred to as 'compound-wound.' These descriptions
date from the period before the advent of power electronics,
an
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Publisher Resources

ISBN: 9781483105277