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Usual & Unusual Service Conditions for Motors and Generators

  • September 2020
  • Number of views: 246
  • Article rating: No rating

Tom Bishop. P.E.
EASA Senior Technical Support Specialist

What are the normal conditions for which a motor is designed? This is a question that does not often come up except when there is an issue with a motor application.   

The NEMA MG1 motor and generator standards provide details on this subject by defining usual and unusual service conditions. The IEC 60034-1 standard, “Rotating Electrical Machines, Part 1 Ratings and Performance,” also addresses some application conditions in clause 6, though not to the extent given in MG1. Our focus here will be on MG1 since it provides greater detail than IEC 60034-1.

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Getting The Most From Your Electric Motors

Getting The Most From Your Electric Motors - coverThis 40-page booklet provides a great marketing tool for your service center! Use it to provide end users with information that will help them obtain the longest, most efficient and cost-effective operation from general and definite purpose electric motors.

This booklet covers topics such as:

  • Installation, startup and baseline information
  • Operational monitoring and maintenance
  • Motor and baseline installation data
  • How to read a motor nameplate
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EASA Technical Manual

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The EASA Technical Manual is the association's definitive and most complete publication. It's available FREE to members in an online format. Members can also download PDFs of the entire manual or individual sections.

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ANSI/EASA AR100-2020

ANSI/EASA AR100-2020 cover

Recommended Practice for the Repair of Rotating Electrical Apparatus
This is a must-have guide to the repair of rotating electrical machines. Its purpose is to establish recommended practices in each step of the rotating electrical apparatus rewinding and rebuilding processes.

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EASA AR200

EASA AR200: Guide for the Repair of Power and Distribution Transformers cover

Guide for the Repair of Power and Distribution Transformers
This document establishes guidelines for each step of the repair of power transformers, describing record keeping, tests, analysis, and general guidelines for the repair of power transformers.

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