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

  • June 2026
  • Number of views: 489
  • Article rating: 4.0
Article

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: 367
  • Article rating: No rating
Article

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: 146
  • Article rating: No rating
Article

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: 158
  • Article rating: No rating
Article

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.

Installing and Removing Pulleys

  • April 2026
  • Number of views: 1251
  • Article rating: No rating
FREE for Members of EASA
Webinar recording

This presentation covers two types of pulleys (quick detachable and taper lock) and provides instructions for installing and removing both types.

Accuracy Is Critical When Creating ‘As Received’ Documentation

  • April 2026
  • Number of views: 979
  • Article rating: 3.0
Article

The typical customer has an expectation of sending in their equipment to a service center to get it repaired correctly. Whatever the process, service centers should capture the “As Received” information accurately. This article will point out some pitfalls that can be avoided by taking the right steps during the “As Received” process.

La precisión es fundamental al crear la documentación “a la entrada”

  • April 2026
  • Number of views: 608
  • Article rating: No rating
Article

El cliente típico espera enviar su equipo a un centro de servicio para que sea reparado de manera correcta. Sea cual sea el proceso, los centros de servicio deben registrar la información del estado "a la entrada" con total precisión. Este artículo señalará algunos errores comunes que se pueden evitar si se adoptan las medidas adecuadas durante el proceso de recepción del equipo.

Tips and Tricks for Electric Motor Repair

  • January 2026
  • Number of views: 1979
  • Article rating: 4.5
FREE for Members of EASA
Webinar recording

This webinar recording shares practical solutions for mechanics and winders to overcome common challenges and streamline their daily work.

Identificando cables no marcados en maquinas de 12 terminales con un solo devanado

  • December 2025
  • Number of views: 1284
  • Article rating: 4.0
Article

Identificar los cables sin marcar en los motores trifásicos es una tarea habitual para los técnicos de los centros de servicio. Este artículo presenta un método para asignar números a los cables de una máquina de 12 cables con los terminales sin marcar.

Identifying Unmarked Leads in 12-Lead Machines with One Winding

  • December 2025
  • Number of views: 2305
  • Article rating: 5.0
Article

Identifying unmarked leads in three-phase motors is a common task for service center technicians. This article provides one way to assign lead numbers for a 12-lead machine with unmarked leads.

Getting The Most From Your Electric Motors

Getting The Most From Your Electric Motors - coverThis 40-page booklet provides great advice for obtaining the longest, most efficient and cost-effective operation from general and definite purpose electric motors.

This booklet covers topics such as:

  • Installation, startup and baseline information
  • Operational monitoring and maintenance
  • Motor and baseline installation data
  • How to read a motor nameplate
  • Motor storage recommendations

LEARN MORE AND DOWNLOAD MÁS INFORMACIÓN Y DESCARGAR BUY PRINTED COPIES

READ MORE ABOUT THE FEATURES AND BENEFITS

EASA/AEMT Rewind Study

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.

DOWNLOAD THE FULL RESULTS

ANSI/EASA AR100-2025

ANSI/EASA AR100-2025 cover

Recommended Practice for the Repair of Rotating Electrical Apparatus
This is a must-have guide to the repair of rotating electrical machines. Its purpose is to establish recommended practices in each step of the rotating electrical apparatus rewinding and rebuilding processes.

DOWNLOAD - ENGLISH

DESCARGAR - ESPAÑOL

EASA Technical Manual

EASA Technical Manual cover

Revised October 2025
The EASA Technical Manual is the association's definitive and most complete publication. It's available FREE to members in an online format. Members can also download PDFs of the entire manual or individual sections.

VIEW & DOWNLOAD