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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

Taking Data on a DC Armature

  • July 2026
  • Number of views: 974
  • Article rating: 5.0
FREE for Members of EASA

Are you struggling with training new technicians to take data and rewind DC armatures properly? This recording covers the critical skill gap in our industry for qualified DC armature technicians.

Rewind 2026

  • June 2026
  • Number of views: 2864
  • 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: 1054
  • 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: 1186
  • 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.

Safely Drying Out Windings in the Field

  • June 2026
  • Number of views: 1878
  • Article rating: 2.0

While there are mechanical concerns to consider as well, this article covers only the drying of the winding. The techniques listed here broadly cover stator windings, armatures, field poles, wound rotors and rotor poles.

Limpieza de intercambiadores de calor y camisas de refrigeración de motores: ¿Por qué y cómo? Consejos prácticos.

  • June 2026
  • Number of views: 711
  • Article rating: No rating

Si bien las máquinas con refrigeración aire-aire (WP II o TEAAC) dominan el mercado, la refrigeración agua-aire es habitual en motores con potencias superiores a 5000 kW (6700 hp), en aquellos casos en los que el agua está fácilmente disponible, o en aplicaciones específicas, tales como los generadores eólicos. Los centros de servicio se encuentran con dos configuraciones: intercambiadores de calor con tubos externos e intercambiadores de calor integrales de camisa de agua. 

Secado seguro de devanados en campo

  • June 2026
  • Number of views: 742
  • Article rating: No rating

El secado de devanados en campo presenta desafíos únicos en comparación con el secado en un centro de servicio.  Si bien también existen aspectos mecánicos que deben tenerse en cuenta, este artículo se centra exclusivamente en el secado del devanado. Las técnicas que se enumeran a continuación abarcan, en términos generales, los devanados de estator, las armaduras, las bobinas de campo, los rotores bobinados y los polos de un rotor.

EASA Launches Motor Winding Workbench

Replaces AC Motor Verification & Redesign, updates/support will be phased out in coming months

  • May 2026
  • Number of views: 1153
  • Article rating: 4.5

The new Motor Winding Workbench is now live and replaces EASA’s Motor Winding Database and the AC Motor Verification & Redesign program (Version 4). Visit workbench.easa.com (log in required) to access the new app that is included FREE as part of your EASA membership

EASA Technical Manual

  • May 2026
  • Number of views: 42372
  • Article rating: .8
FREE for Members of EASA

Revised May 2026!
EASA's most comprehensive technical document is available FREE to EASA members. Download the complete manual or just the sections you're interested in.

There’s Fire in the Air

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

  • May 2026
  • Number of views: 1339
  • 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.

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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