Webinar Recordings - EASA | The Electro•Mechanical Authority
Facebook Twitter LinkedIn YouTube Menu Search Arrow Right Arrow Left Arrow Down Arrow Up Home Arrow Next Arrow Previous RSS Icon Calendar Icon Warning Icon
ALERT: A phishing email allegedly from EASA Chairman Barry Bullard with the subject line "Partnership Proposal - EASA Procurement Project" is currently circulating. This email should be flagged as a phishing attempt and deleted. See email.

Filter the results

  • Enter one or more words to find resources containing any of the words entered
  • Enter words or phrases between " " to find exact match

Webinar Recordings

Rebobinando Motores Trifásicos Inverter Duty

  • October 2025
  • Number of views: 249
FREE for Members of EASA
Webinar recording

Este webinario cubrirá los fallos asociados con los motores trifásicos accionados con variadores electrónicos de frecuencia (VFDs) y como rebobinarlos, rebajando las posibilidades de fallos futuros.

Rewind Tips For 2300-Volt, Random-Wound Motors

  • May 2025
  • Number of views: 1939
Article

From the manufacturer’s perspective, a random-wound, 2300-volt motor represents a substantial reduction in manufacturing cost. For the service center, the challenge is to successfully rewind them while providing a reliable repair. Here are some techniques which will enhance your success rate.

Inverter Duty Three-Phase Motor Windings

  • June 2024
  • Number of views: 5229
Article

With the advent of solid-state electronic variable frequency drives (VFDs) in the late 1980s, it was found that the windings of motors used on VFDs failed more frequently than when powered by a utility (sine wave) supply. By the turn of the century, motor manufacturers had gained a better understanding of how VFDs affected motor windings. This article describes the materials and methods associated with inverter duty windings.

Devanados para motores trifásicos Inverter Duty

  • June 2024
  • Number of views: 6615
Article

Con la llegada de los variadores de frecuencia electrónicos (VFD) de estado sólido a fines de la década de 1980, se descubrió que los bobinados de los motores que funcionaban con VFDs fallaban con más frecuencia que al estar alimentados con la energía convencional (onda sinusoidal). A principios de siglo, los fabricantes de motores habían comprendido mejor cómo los VFD afectaban los devanados del motor, y al igual que los proveedores de materiales electro, aislantes habían desarrollado materiales y métodos para mejorar la confiabilidad de los devanados de los motores alimentados con VFDs. En este artículo, describiremos los materiales y métodos asociados con los devanados inverter duty.

Conversión de Aluminio a Cobre: Lo que Necesita Saber

  • December 2023
  • Number of views: 4695
FREE for Members of EASA
Webinar recording

¿Recibió un motor antiguo bobinado con alambre de aluminio? Este webinario explicará como realizar la conversión adecuada de alambre de aluminio a alambre de cobre en máquinas de CA y CC, incluyendo ejemplos para el rebobinado de estatores y campos shunt.

Lead Wire Sizing 101

  • May 2023
  • Number of views: 8676
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.  

How to Measure Magnet Wire

  • March 2023
  • Number of views: 5163
Video

This video shows one step in collecting motor winding data: how to measure magnet wire.

EASA Technical Manual

  • September 2022
  • Number of views: 35069
FREE for Members of EASA
Book

Revised September 2022!
EASA's most comprehensive technical document is available FREE to EASA members. Download the complete manual or just the sections you're interested in.

Best AC Rewind Practices

  • February 2021
  • Number of views: 18733
FREE for Members of EASA
Webinar recording

This webinar recording shares some of the “best practice” rewind methods used by (and learned from) EASA service centers around the world: connection recognition, best insulating materials, wire choices and tips to save time and effort.

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

  • February 2020
  • Number of views: 62645
Book

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.