ANSI/EASA AR100-2020 cover

ANSI/EASA Standard AR100-2020
ANSI/EASA AR100-2020: Recommended Practice for the Repair of Rotating Electrical Apparatus is a must-have guide to the repair of rotating electrical machines. It establishes recommended practices in each step of the rotating electrical apparatus rewinding and rebuilding processes.

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For information about ANSI/EASA AR100 or questions about the work on this standard, contact:

Mike Howell, PE
EASA Technical Support Specialist
+1 314 993 2220
mhowell@easa.com

ANSI Accredited Standards Developer Information

Increasing Motor Reliability

Regularly Checking the Operating Temperature of Critical Motors Will Help Extend Their Life and Prevent Costly, Unexpected Shutdowns

February 2020
Number of views: 12941
Article rating: 5.0

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

It’s a striking fact that operating a three-phase induction motor at just 10°C above its rated temperature can shorten its life by half. Whether your facility has thousands of motors or just a few, regularly checking the operating temperature of critical motors will help extend their life and prevent costly, unexpected shutdowns. This article will show you how to go about it.

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EASA Technical Manual

More information on this topic can be found in EASA's Technical Manual

Section 2: AC Machines
Section 3: DC Machines

Related Reference and Training Materials

Principles of Medium & Large AC Motors (NEMA Standards)

Section 2: Motor Enclosures
Section 5: Basic Motor Theory
Section 6: Motor Standards

Principles of Medium & Large AC Motors (IEC Standards)

Section 2: Motor Enclosures
Section 5: Basic Motor Theory
Section 6: Motor Standards

Root Cause Failure Analysis

Section 3: Stator Failures
Section 7: DC Motor Failures

Fundamentals of DC Motors & Operation Tips

Section 1: Nomenclature & Nameplate Information
Section 11: Failure Analysis

Mechanical Repair Fundamentals of Electric Motors

Section 2: Motor Applications & Enclosures

Categories: AC motors, Miscellaneous, Motor protection, Temperature detectors, Ventilation/cooling, Articles in industry publications, Electrical Business

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The Effect of Repair/Rewinding on Premium Efficiency/IE3 Motors
Tests prove Premium Efficiency/IE3 Motors can be rewound without degrading efficiency.

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EASA Good Practice Guide

Good Practice Guide to Maintain Motor Efficiency
Based on the 2019 and 2003 Rewind Studies of premium efficiency, energy efficient, IE2 (formerly EF1) and IE3 motors

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