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IEEE ANSI/IEEE 620-1981

IEEE Trial Use Guide for Construction and Interpretation of Thermal Limit Curves for Squirrel-Cage Motors Over 500 hp

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IEEE ANSI/IEEE 620-1981

IEEE Trial Use Guide for Construction and Interpretation of Thermal Limit Curves for Squirrel-Cage Motors Over 500 hp

PUBLISH DATE 1981

PAGES 8

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New IEEE Standard - Superseded.

This guide defines thermal limit curves, recommends a standard procedure for construction of the curves, and provides the definitions and information necessary t o properly use these curves. 2.2 The guide also describes thermal limit curves for large squirrel-cage motors defined as those motor ratings built in frames larger than the frame normally used for 500hp , 1800r/min motors.

The purpose of this guide is to assist in a uniform understanding of the construction, interpretation, and use of motor thermal limit curves.


SDO	IEEE: Institute of Electrical and Electronics Engineers
Document Number	620
Publication Date	April 16, 1981
Language	en - English
Page Count	8
Revision Level
Supercedes
Committee

Publish Date	Document Id	Type	View
April 16, 1981	620-1981	Revision

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