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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

There’s Fire in the Air

Thermal Protection and Their Testing in Explosion Proof (XP and EX) Motors

  • May 2026
  • Number of views: 1150
  • Article rating: No rating

This article explains the role, testing, and precise placement of thermal protectors in explosion proof motors to maintain certification and ensure workplace safety.

Hay fuego en el aire

Protección térmica y su ensayo en motores a prueba de explosiones (XP y EX)

  • May 2026
  • Number of views: 674
  • Article rating: No rating

Este artículo explica la función, las pruebas y la ubicación precisa de los protectores térmicos en los motores a prueba de explosiones, con el fin de mantener la certificación y garantizar la seguridad en el lugar de trabajo.

Temperature Detecting Accessories

  • March 2026
  • Number of views: 1654
  • Article rating: No rating
FREE for Members of EASA

When equipment fails and customers wait, knowing exactly how to test each temperature-sensing device becomes critical. Don't let temperature accessories be your diagnostic blind spot.

Sensores de Temperatura para Bobinados y Rodamientos

En Español

  • December 2022
  • Number of views: 5462
  • Article rating: 5.0
FREE for Members of EASA

Para monitorear la temperatura de los bobinados y en los rodamientos se pueden usar diferentes tipos de dispositivos. La correcta identificación de los mismos es importante para determinar el tipo de  sensor en casos en los que el dispositivo es desconocido o para escoger el dispositivo correcto para una determinada aplicación.

Getting the Most from Winding RTDs

  • April 2021
  • Number of views: 11526
  • Article rating: No rating

Winding RTDs are resistance-based temperature monitoring devices. Aside from just reporting winding temperature, here are some tips for maximizing the benefit of RTDs.

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: 18182
  • Article rating: 3.3

Regardless of the method used to detect winding temperature, the total, or hot spot, temperature is the real limit; and the lower it is, the better. Don’t let excessive heat kill your motors before their time.

Principles of Medium & Large AC Motors, 1st Edition - IEC

  • February 2020
  • Number of views: 68302
  • Article rating: .6

This manual covers horizontal and vertical squirrel-cage induction motors in the 300 to 5,000 horsepower range, low- and medium-voltage. Most of the principles covered apply to other sizes as well. This manual focuses primarily on IEC motors and standards.

Help With Installing Winding Resistance Temperature Detectors (RTDs)

  • May 2019
  • Number of views: 17013
  • Article rating: 4.1

Electrical Engineering Pocket Handbook

  • August 2018
  • Number of views: 51627
  • Article rating: 1.1

Filled with practical information, this 118-page handbook (3.5" x 6", 9cm x 15cm) makes a great “give-away” item for your customers and potential customers! Buy this great resource as is OR imprint your company logo and information on the cover to turn it into a great marketing piece for your salespeople!

Winding & Bearing Temperature Sensing Devices

  • May 2014
  • Number of views: 9666
  • Article rating: No rating

This presentation addresses the topic of a various temperature sensing devices including RTDs, thermostats, thermocouples and thermistors. The advantages of each and the proper application will be covered.

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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