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Lead Wire Sizing 101

  • May 2023
  • Number of views: 432
  • Article rating: No rating
FREE for Members of EASA
Webinar recording

Choosing an appropriate lead wire for a new stator winding is an important task. The manufacturer’s information is not always available, or the number of circuits or external connection may have been changed, requiring a redesign of the lead wire.  

Vibration Spectrum Analysis Techniques

  • March 2023
  • Number of views: 1419
  • Article rating: No rating
FREE for Members of EASA
Webinar recording

Overall vibration amplitude levels will indicate if a machine has a problem but determining what that problem could be requires both amplitude and frequency data.  The vibration spectrum provides the most convenient way to analyze those two key vibration parameters. 

Fitting of Sleeve Bearings

  • February 2023
  • Number of views: 1420
  • Article rating: No rating
FREE for Members of EASA
Webinar recording

This webinar describes the best practice for fitting sleeve bearings in an electric motor. 

Remote Condition Monitoring Overview & Discussion

  • January 2023
  • Number of views: 1009
  • Article rating: 4.0
Webinar recording

This discussion highlights EASA’s overview guide on remote condition monitoring and answers questions from members on the booklet and, and remote condition monitoring in general.

Sensores de Temperatura para Bobinados y Rodamientos

En Español

  • December 2022
  • Number of views: 954
  • Article rating: 5.0
FREE for Members of EASA
Webinar recording

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.

Open Stator Impedance Testing

  • November 2022
  • Number of views: 1707
  • Article rating: No rating
FREE for Members of EASA
Webinar recording

The open stator impedance test (a.k.a, ball test or dummy rotor test) is used by many service centers as a quality control check before winding treatment and/or a troubleshooting test. This webinar recording reviews test procedures, expected outcomes and incorporating thermal camera imaging.

Shaft Straightening Methods

  • September 2022
  • Number of views: 1089
  • Article rating: No rating
FREE for Members of EASA
Webinar recording

There are heat methods and press methods for straightening shafts. This webinar reviews those methods, their pros and cons, and when one method or another may be applicable.

Turn and Undercut of DC Commutators

  • August 2022
  • Number of views: 1684
  • Article rating: 1.3
FREE for Members of EASA
Webinar recording

This webinar discusses specific procedures to obtain the best possible results when machining & undercutting commutators for DC machines.

How Rework Data Can Improve Profitability and Reduce Lead Times

  • July 2022
  • Number of views: 1469
  • Article rating: 1.0
FREE for Members of EASA
Webinar recording

This presentation discusses the importance of tracking rework in the shop and how it can lead to focused training opportunities, improved turnaround times and improved profitability.

Prueba de Resistencia de Aislamiento como Herramienta de Mantenimiento

En Español

  • June 2022
  • Number of views: 1393
  • Article rating: 3.0
FREE for Members of EASA
Webinar recording

Las pruebas de Resistencia de Aislamiento, Relación de Absorción Dieléctrica (DAR) e índice de Polarización (IP) son herramientas comúnmente usadas para evaluar la condición del aislamiento de las máquinas eléctricas rotativas y para confirmar la integridad del sistema de aislamiento a tierra, detectando la presencia de humedad que puede ocasionar fallos en los devanados. En las máquinas grandes, un adecuado análisis de tendencias ayuda a detectar cambios importantes y a tomar acciones correctivas antes de que ocurran fallos catastróficos.

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



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.


ANSI/EASA AR100-2020

ANSI/EASA AR100-2015 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.



EASA Technical Manual

EASA Technical Manual cover

Revised September 2022
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.