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NEMA Publishes NEMA MG 1-2011 Motors and Generators


01/9/2012 2:00PM

ROSSLYN, Va., —The National Electrical Manufacturers Association (NEMA) has published the 2011 edition of NEMA MG 1 Motors and Generators.

MG 1 is the definitive standard for practical information concerning performance, safety, testing, construction, and manufacture of alternating-current and direct-current motors and generators. It provides access to fundamental testing, as well as dimensional and application criteria relative to rotating machinery. The standard assists users in the proper selection and application of motors and generators.

“With each revision, MG 1 becomes more useful to manufacturers and users of motors and generators,” said Roger Daugherty, PhD, of Baldor Electric Company, and chair of the 1MG Technical Committee.

The most significant changes are seen in Parts 1, 12, and 20. Changes include enhanced efficiency tables for 8 pole machines and expansion of the large machine section.

To increase the publication’s utility and readability, the standard also includes a summary of changes for the current revision and previous editions with color coding throughout the document to mark affected sections.

The contents and scope of MG 1-2011 may be viewed atwww.nema.org/stds/mg1.cfm. A hard or electronic copy may be purchased for $329 by visiting global.ihs.com or by contacting IHS at 800-854-7179 (U.S. only), 303-397-7956 (international), or 303-397-2740 (fax).

NEMA is the association of electrical equipment manufacturers, founded in 1926 and headquartered in Arlington, Virginia. Its member companies manufacture a diverse set of products including power transmission and distribution equipment, lighting systems, factory automation and control systems, and medical diagnostic imaging systems. Worldwide annual sales of NEMA-scope products exceed $120 billion.



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