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NEMA - ANSI/NEMA MG 1

Motors and Generators

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Organization: NEMA
Publication Date: 1 January 2014
Status: inactive
Page Count: 652
scope:

Foreword

The standards appearing in this publication have been developed by the Motor and Generator Section and approved for publication as standards of the National Electrical Manufacturers Association. They are intended to assist users in the proper selection and application of motors and generators. These standards are revised periodically to provide for changes in user needs, advances in technology, and changing economic trends. All persons having experience in the selection, use, or manufacture of electric motors and generators are encouraged to submit recommendations that will improve the usefulness of these standards. Inquiries, comments, and proposed or recommended revisions should be submitted to the Motor and Generator Section by contacting:

The best judgment of the Motor and Generator Section on the performance and construction of motors and generators is represented in these standards. They are based upon sound engineering principles, research, and records of test and field experience. Also involved is an appreciation of the problems of manufacture, installation, and use derived from consultation with and information obtained from manufacturers, users, inspection authorities, and others having specialized experience. For machines intended for general applications, information as to user needs was determined by the individual companies through normal commercial contact with users. For some motors intended for definite applications, the organizations that participated in the development of the standards are listed at the beginning of those definite-purpose motor standards.

Practical information concerning performance, safety, test, construction, and manufacture of alternatingcurrent and direct-current motors and generators within the product scopes defined in the applicable section or sections of this publication is provided in these standards. Although some definite-purpose motors and generators are included, the standards do not apply to machines such as generators and traction motors for railroads, motors for mining locomotives, arc-welding generators, automotive accessory and toy motors and generators, machines mounted on airborne craft, etc.

In the preparation and revision of these standards, consideration has been given to the work of other organizations whose standards are in any way related to motors and generators. Credit is hereby given to all those whose standards may have been helpful in the preparation of this volume.

NEMA MG 1-2014 is a revision of MG 1-2011. Prior to publication, the NEMA Standards and Authorized Engineering Information that appear in this publication unchanged since the preceding edition were reaffirmed by the Motor and Generator Section.

The standards or guidelines presented in a NEMA standards publication are considered technically sound at the time they are approved for publication. They are not a substitute for a product seller's or user's own judgment with respect to the particular product referenced in the standard or guideline, and NEMA does not undertake to guaranty the performance of any individual manufacturer's products by virtue of this standard or guide. Thus, NEMA expressly disclaims any responsibility for damages arising from the use, application, or reliance by others on the information contained in these standards or guidelines.

This standards publication was developed by the Motors and Generator Section. Section approval of the standard does not necessarily imply that all section members voted for its approval or participated in its development.

Document History

January 1, 2018
Motors and Generators
This standard is applicable to direct-current machines tested with direct-current power and to polyphase alternating-current machines tested with sinusoidal power, in frame sizes 42 and larger and at...
March 3, 2017
Motors and Generators - Section IV Part 34: Air-Over Motor Efficiency Test Method
A description is not available for this item.
January 1, 2016
Motors and Generators
Assists users in the proper selection and application of motors and generators. Contains practical information concerning performance, safety, testing, and the construction and manufacture of ac and...
ANSI/NEMA MG 1
January 1, 2014
Motors and Generators
Foreword The standards appearing in this publication have been developed by the Motor and Generator Section and approved for publication as standards of the National Electrical Manufacturers...
January 1, 2011
Motors and Generators
This Standard applies to the classification of degrees of protection provided by enclosures for rotating electrical machines. It defines the requirements for protective enclosures that are in all...
January 1, 2011
Motors and Generators
Assists users in the proper selection and application of motors and generators. Contains practical information concerning performance, safety, testing, construction and manufacture of AC and DC...
January 1, 2009
Motors and Generators
This Standard applies to the classification of degrees of protection provided by enclosures for rotating electrical machines. It defines the requirements for protective enclosures that are in all...
January 1, 2009
Motors and Generators
This Standard applies to the classification of degrees of protection provided by enclosures for rotating electrical machines. It defines the requirements for protective enclosures that are in all...
December 8, 2008
Motors and Generators
A description is not available for this item.
January 1, 2007
Motors and Generators
A description is not available for this item.
January 1, 2006
Motors and Generators
This Standard applies to the classification of degrees of protection provided by enclosures for rotating electrical machines. It defines the requirements for protective enclosures that are in all...
January 1, 2006
Motors and Generators
A description is not available for this item.
January 1, 2006
Motors and Generators
A description is not available for this item.
January 1, 2003
Motors and Generators
A description is not available for this item.
January 1, 2003
Motors and Generators
A description is not available for this item.
January 1, 2003
Motors and Generators
Foreword The standards appearing in this publication have been developed by the Motor and Generator Section and approved for publication as Standards of the National Electrical Manufacturers...
January 1, 1998
Motors and Generators
A description is not available for this item.
January 1, 1998
Motors and Generators
A description is not available for this item.
January 1, 1998
Motors and Generators
Foreword The standards appearing in this publication have been developed by the Motor and Generator Section and approved for publication as Standards of the National Electrical Manufacturers...
January 1, 1998
Motors and Generators
A description is not available for this item.
January 1, 1993
Motors and Generators
Foreword The standards appearing in this publication have been developed by the Motor and Generator Section and approved for publication as Standards of the National Electrical Manufactures...
January 1, 1993
Motors and Generators
A description is not available for this item.
January 1, 1993
Motors and Generators
A description is not available for this item.
January 1, 1993
Motors and Generators
A description is not available for this item.
January 1, 1993
Motors and Generators
A description is not available for this item.

References

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