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Proper Repair/Rewind Practices Maintain Efficiency/Reliability of Premium Efficiency/IE3 Motors  DOWNLOAD THE EXECUTIVE SUMMARY

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

  • February 2020
  • Number of views: 1751
  • Article rating: 5.0

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.

Principios de Motores C.A. Medianos y Grandes - NEMA

  • February 2019
  • Number of views: 897
  • Article rating: No rating

Las versiones impresas, en CD-ROM y en forma de descarga del valioso manual didáctico / recurso de EASA, “Principios de Motores C.A. Medianos y Grandes”, se  ahora disponibles en inglés y en español. El manual incluye gráficos e ilustraciones, fotografías y mucha información técnica sobre máquinas C.A., incluyendo como funcionan, información específica sobre los tipos de encerramientos, fabricación de componentes y aplicaciones.  Muchos de los principios incluidos en el libro aplican a todos los motores C.A., especialmente a aquellos accesorios que fueron asociados en el pasado con las máquinas más grandes (como encoders, RTDs, termostatos, calentadores de espacio, sensores de vibración, etc.).

Wire Size Changes 101: Tools and Methods for Avoiding Costly Mistakes with the Most Common Redesign

  • June 2018
  • Number of views: 588
  • Article rating: No rating
Webinar recording

This webinar focuses on:

  • Proper wire measurements
  • Metric and AWG sizing
  • Aluminum to copper
  • Random to form wound and vice versa
  • Stator windings, field windings, interpoles
  • Using wire combination tables
  • Using EASA’s AC Motor Verification & Redesign software

How To Wind Three-Phase Stators (Version 2)

Self-paced, interactive training for stators 600 volts or less

  • February 2017
  • Number of views: 809
  • Article rating: No rating

This EASA software is a valuable interactive training tool ideal for training your novice(s) ... and even experienced winders will learn from it. The CD teaches how to wind in a richly detailed, step-by-step approach which includes narrative, animations and video clips, with tests to assess student comprehension. 

The Basics: Motor Repair Burnout Procedures

  • October 2016
  • Number of views: 583
  • Article rating: No rating
Webinar recording

This webinar will cover burnout procedures for AC stators: 

  • Interlaminar insulation materials / properties
  • Core testing before and after
  • Processing equipment, controls and records

Bobinage d'un stator triphasé

  • September 2016
  • Number of views: 675
  • Article rating: No rating

Cette formation en ligne a été développée par EASA et a été traduite en français avec la collaboration de EASA, Chapitre Québec et les Maritimes et d’Élexpertise. Cette formation a été réalisée avec l’aide financière de la Commission des partenaires du marché du travail. L’objectif principal est de permettre à l’apprenant d’inscrire les données sur une fiche technique en faisant référence aux notions de base d’un stator triphasé. Les activités d’apprentissage touchent les principales étapes du bobinage. L’apprenant apprend l’entretien et la réparation d’un stator triphasé selon les normes en vigueur. Remarque: Cette formation sera accessible en ligne pour une période de 6 mois. Prix membre: $199 US Prix membre non: $599 US CONTENU                                                                                           INTRODUCTION MODULE 1- Notions de base sur le stator triphasé Structure du stator triphasé Schémas de raccordement du bobinage de stator Utilisation des fiches techniques MODULE 2 - Entretien et réparation d'un stator triphasé Mesures de sécurité Décapage du bobinage d’un stator triphasé Démoulage du bobinage d’un stator triphasé Préparation du noyau d’un stator triphasé Fabrication des enroulements d’un stator triphasé Insertion des enroulements dans un stator triphasé Raccordement des enroulements et des conducteurs électriques Laçage et renforcement du bobinage d’un stator triphasé Inspection du bobinage avant finition Test du bobinage d’un stator triphasé Finition du bobinage de stator triphasé CONCLUSION DURÉE: 10 heures

EASA Technical Manual

  • August 2016
  • Number of views: 1164
  • Article rating: No rating
FREE for Members of EASA

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

Rewinding Tips for Premium-Efficient Motors

  • June 2016
  • Number of views: 507
  • Article rating: No rating
Webinar recording

This webinar recording covers: 

  • Importance of core loss testing
  • Methods to reduce core losses
  • Slot fill improvement without reducing copper

AC Motor Verification & Redesign - Ver. 4

  • May 2016
  • Number of views: 1017
  • Article rating: No rating

The AC Motor Verification and Redesign software provides easy verification of either concentric or lap windings, as well as redesigns with changes in poles/speed, horsepower, frequency or voltage. The redesign report with original and new winding data is output as an Adobe Reader (PDF) file and can be printed or saved. The program also allows you to search EASA’s extensive motor winding database.

Motor Rewind Data - Ver. 4

  • May 2016
  • Number of views: 939
  • Article rating: No rating

This version of the EASA Motor Rewind Database software takes a large leap forward with the data that it provides members. Most notably, it now has the ability to connect to a live, ever-expanding online database of more than 250,000 windings. This live database will be continuously monitored, updated and corrected as needed by EASA’s Technical Support Staff.

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 Technical Manual

EASA Technical Manual cover

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.


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 AR200: Guide for the Repair of Power and Distribution Transformers cover

Guide for the Repair of Power and Distribution Transformers
This document establishes guidelines for each step of the repair of power transformers, describing record keeping, tests, analysis, and general guidelines for the repair of power transformers.