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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
AC and DC Motors 115
5.1.3 torqUe–sPeed CharaCteristiC MatChing
Matching the torque versus speed characteristic of the induction motor with that
of the load is an important consideration for system design. The motor connected
to a high-torque load during start must have high starting torque, or else it will not
start. Some motors have high starting torque but lower efciency compared to others.
The high starting torque requires rotor with high resistance, resulting in poor ef-
ciency under running conditions. The National Electrical Manufacturers Association
(NEMA) classies motor designs according to the starting torque and the maximum
brea ...
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Publisher Resources

ISBN: 9781439828175