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Electrical Codes, Standards, Recommended Practices and Regulations
book

Electrical Codes, Standards, Recommended Practices and Regulations

by Robert J. Alonzo
January 2010
Intermediate to advanced content levelIntermediate to advanced
512 pages
18h 35m
English
William Andrew
Content preview from Electrical Codes, Standards, Recommended Practices and Regulations
The letter designation above in each motor enclosure description is an abbreviation of the
enclosure name. The parenthesis enclosed designations are the international index of
protection and motor index of cooling designations for each motor enclosure.
Motors and Generators General Types
The NEMA MG 1, Motors and Generators lists the general categories for motors and
generators as [5]:
1. Alternating Current Motors
(a) Induction Motors
(1) Squirrel-Cage Induction Motors
(2) Wound-Rotor Induction Motors
(b) Synchronous Motors
(1) Direct-Current Excited Synchronous Motors
(2) Permanent-Magnet Synchronous Motors
(3) Reluctance Synchronous Motors
2. Alternating ...
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ISBN: 9780815520450