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NOTICE: EASA’s office will be closed on Friday, March 29, 2024 in observance of Good Friday.

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Webinar Recordings

EASA Technical Manual

  • September 2022
  • Number of views: 26769
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.

A Simple Approach to Duty Ratings of AC Machines

  • August 2021
  • Number of views: 6849
Article

When we consider putting a machine into service, we must consider the duty rating of the machine. If we do not, there is a good chance that the machine being placed into service will have thermal degradation of the windings. Not every application is created equal.

Un EnfoqueSencillo para los Tipos de Servicio de las Máquinas CA

  • August 2021
  • Number of views: 8184
Article

Cuando consideremos la puesta en servicio de una máquina, debemos tener en cuenta su tipo de servicio. Si no lo hacemos, es muy probable que la máquina sufra una degradación térmica de los devanados. Sin embargo, no todas las aplicaciones son iguales. 

Working with the No Nameplate Motor

  • November 2020
  • Number of views: 6734
Article

Customers sometimes send in a motor with no nameplate, or an illegible nameplate, having little knowledge of the machine’s ratings. This article will explore the process of evaluating the machine using frame size, winding data and test data to assign reasonable ratings.

Working with the No Nameplate Motor

  • September 2020
  • Number of views: 7680
FREE for Members of EASA
Webinar recording

Customers will often send in a motor with no nameplate and having little knowledge of the machine’s ratings. This webinar guides attendees through the process of evaluating the machine using core size, winding data and diagnostic testing to assign reasonable ratings.

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

  • February 2020
  • Number of views: 53258
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.

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

  • February 2019
  • Number of views: 15377
Book

Las versiones impresas 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.).

What’s in a nameplate?

Information helps the selection of the right motor regardless of application

  • November 2018
  • Number of views: 11123
Trade press article — Plant Engineering

Whether you're selecting a motor for a new application or a replacement for one that has failed, you need a reliable way to match the capabilities and performance characteristics of various motors with the requirements of the application.

Motor nameplate: What information it provides

  • February 2018
  • Number of views: 11591
Article

The nameplate of an electric motor reveals much valuable information about the capability and performance of the machine.

La placa de datos del motor: ¿Qué información proporciona?

  • February 2018
  • Number of views: 12462
Article

La placa de datos de un motor eléctrico revela mucha información valiosa acerca de la capacidad y desempeño de la máquina.