
CHAPTER 8
Motors, Generators, and Controls
The main developer of motor and generator standards in the United States is the National
Electrical Manufacturers Association (NEMA). The primary standard for electric motors in
the United States is NEMA MG 1, Motors and Generators. There are several other NEMA
documents which supplement MG 1, including:
NEMA Standards Publication Condensed MG 1, Information Guide for General Pur-
pose Industrial AC Small and Medium Squirrel-Cage Induction Motor Standards
NEMA Standards Publication No. MG 2, Safety Standard and Guide for Selection,
Installation, and Use of Electric Motors and Generators
NEMA Standards