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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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Questions?

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

What’s in a nameplate?

Information helps the selection of the right motor regardless of application

  • November 2018
  • Number of views: 12737
  • Article rating: 1.7

By Jim Bryan
EASA Technical Support Specialist (retired)

Whether you're selecting a motor for a new application or a replacement for one that has failed, you need a reliable way to match the capabilities and performance characteristics of various motors with the requirements of the application.

Fortunately, motors that conform with NEMA Std. MG 1-2016 or IEC Std. 60034-8:2007 must include all nameplate data that the respective standards require. What this entails will vary with motor type and size, so for example, rated field and armature current data would be required for direct current (dc) motors but not for alternating current (ac) motors. The focus here is on how the required nameplate data for NEMA and IEC motors can be helpful for selecting the right motor for an application.

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EASA Technical Manual

More information on this topic can be found in EASA's Technical Manual
  • Section 1: Machine Identification & Bearing Information
  • Section 2: AC Machines
  • Section 3: DC Machines

Related Reference and Training Materials

Principles of Medium & Large AC Motors (NEMA Standards)
  • Section 1: Motor Nomenclature & Definitions
  • Section 5: Basic Motor Theory
  • Section 6: Motor Standards

Principles of Medium & Large AC Motors (IEC Standards)
  • Section 1: Motor Nomenclature & Definitions
  • Section 5: Basic Motor Theory
  • Section 6: Motor Standards

Fundamentals of DC Motors & Operation Tips
  • Section 1: Nomenclature & Nameplate Information

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EASA Rewind Study cover

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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