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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

Best Practices for Brazing Connections

  • September 2026
  • Number of views: 640
  • Article rating: No rating

Many brazing failures can be traced to a short list of preventable mistakes. Poor cleaning, improper heating, excessive joint gaps and incorrect use of flux are among the most common causes of weak or unreliable braze connections.

Las mejores prácticas para soldar conexiones

  • September 2026
  • Number of views: 255
  • Article rating: No rating

Muchos fallos en la soldadura fuerte se deben a una serie de errores evitables. Una limpieza deficiente, un calentamiento inadecuado, holguras excesivas en la unión y el uso incorrecto del fundente son algunas de las causas más comunes de uniones débiles o poco fiables.

Form Coil Worksheet Available for Motor Winding Workbench Users

  • August 2026
  • Number of views: 1329
  • Article rating: 5.0

Data verification and redesign of machines with form coil windings can be done in Motor Winding Workbench with the exception of rectangular conductor and insulation dimensioning. To address this need, a Form Coil Worksheet has been added to EASA’s online calculators.

Hoja de trabajo para bobinas de pletina disponible para los usuarios de Motor Winding Workbench

  • August 2026
  • Number of views: 580
  • Article rating: No rating

La verificación de datos y el rediseño de máquinas con bobinados en pletina (solera) se puede realizar en Motor Winding Workbench, a excepción del dimensionamiento de conductores rectangulares y del aislamiento. Para cubrir esta necesidad, se ha añadido a las calculadoras en línea de EASA una hoja de cálculo para bobinas de pletina. 

The Importance of Core Loss Testing

  • August 2026
  • Number of views: 1063
  • Article rating: No rating

Both the core loss and hot spot temperature MUST be considered when evaluating a core prior to rewind.

Get Excited About Excitation

  • July 2026
  • Number of views: 1689
  • Article rating: No rating

Few things are less exciting in the motor world than a large synchronous motor that refuses to start—and all too often, the root cause is excitation. This article provides an overview of what synchronous motor excitation is, how it works, and the common issues you are likely to encounter.

Entusiasmate con la excitación

  • July 2026
  • Number of views: 645
  • Article rating: No rating

Pocas cosas resultan menos estimulantes en el mundo de los motores que un gran motor sincrónico que se niega a arrancar; y, con demasiada frecuencia, la causa raíz reside en la excitación. Este artículo ofrece un panorama general de qué es la excitación de un motor síncrono, cómo funciona y los problemas habituales que es probable que encuentre. 

Rewind 2026

  • June 2026
  • Number of views: 3174
  • Article rating: No rating

Revisit EASA's 2026 Convention & Solutions Expo by buying access to recordings of the general sessions and education events streamed from EASA's website! These recordings provide just over 32 hours of training. Downloadable PDFs of slides and technical papers are included!

Pruebas e Inspección de Motores Eléctricos In Situ

  • June 2026
  • Number of views: 1260
  • Article rating: 1.8
FREE for Members of EASA

Ya sea para garantizar la continuidad del servicio o por un fallo o por un funcionamiento inusual, las pruebas in situ de los motores son valiosas para garantizar que no existan condiciones de ensamblaje anormales después de la reparación del equipo, evitando así el desmontaje de equipos que están en buen estado. También confirman si la reparación se ha realizado satisfactoriamente.

Cleaning Motor Water Heat Exchangers and Jackets: Why and How? Practical Advice

  • June 2026
  • Number of views: 1342
  • Article rating: 2.7

While air-to-air cooled machines (WPII or TEAAC) dominate the market, water-to-air cooling is typical for motors rated above 5,000 kW (6,700 hp) or where water is readily available, or with specific applications such as wind generators. Service centers encounter two configurations: external tube heat exchangers and integral water jacket heat exchangers.

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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