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Shipboard Electrical Power Systems
book

Shipboard Electrical Power Systems

by Mukund R. Patel
December 2011
Intermediate to advanced content levelIntermediate to advanced
370 pages
12h 24m
English
CRC Press
Content preview from Shipboard Electrical Power Systems
105
5
AC and DC Motors
Of the total electrical energy generated worldwide, about 58% is used by all motors
combined, about 7% for lighting, and the remaining 35% for heating and other uses.
Major types of motor are the synchronous motor, induction motor (also known as
asynchronous motor), and dc motor. All have two sets of coils with different cur-
rents, say, I
1
and I
2
. The electromagnetic interaction between two currents produces
motor torque T K I I
m
=
1 2
. If the motor shaft has a load torque T
Load
< T
motor
, the motor
would accelerate to a speed at which T
Load
= T
motor
, where it would stop accelerating
and run at steady speed. The motor armature ...
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Publisher Resources

ISBN: 9781439828175