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

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Usual & Unusual Service Conditions for Motors and Generators

  • September 2020
  • Number of views: 52
  • Article rating: No rating
Article

What are the normal conditions for which a motor is designed? This is a question that does not often come up except when there is an issue with a motor application.

Condiciones de Servicio Normales + Inusuales en Motores y Generadores

  • September 2020
  • Number of views: 38
  • Article rating: No rating
Article

¿Cuáles son las condiciones normales para las que está diseñado un motor eléctrico? Esta es una pregunta que no surge muy a menudo, excepto cuando existe un problema con la aplicación.

Fundamentos de los Motores Sincrónicos

  • July 2020
  • Number of views: 255
  • Article rating: No rating
Article

Los avances en la electrónica de potencia en las últimas décadas han permitido el uso de una variedad de máquinas eléctricas rotativas que de otro modo no sería factible. Una de ellas se denomina máquina de reluctancia debido a la forma en la que dichas máquinas producen un torque electromagnético. Una máquina de reluctancia es una máquina eléctrica en la cual el torque se produce por la tendencia de su parte móvil a moverse a una posición donde se maximiza la inductancia del devanado excitado.

Determining Impeller Trim Diameters for Pump Re-Applications

  • June 2020
  • Number of views: 257
  • Article rating: No rating
FREE for Members of EASA
Convention presentation

Whether it is a simple re-application of a pump from 50 Hz to 60 Hz (or vice versa), the repurposing of an existing pump, or the application of a new pump to an existing application, determining the proper trim for an impeller can be challenging.

Getting to Know Reluctance Machines

  • June 2020
  • Number of views: 194
  • Article rating: No rating
FREE for Members of EASA
Convention presentation

This recording explores features of synchronous and switched reluctance machines.

Vertical Motor Operation and Repair

  • June 2020
  • Number of views: 251
  • Article rating: No rating
FREE for Members of EASA
Convention presentation

Vertical motors differ from horizontal motors in numerous ways, yet some view them as “just a horizontal motor turned on end.” The obvious differences are the (usually) thrust bearings, with arrangements varying from single- to three-thrust bearings with different orientations suited for specific load, rpm and applications. Less obvious differences are in the ventilation arrangements, shaft stiffness, degrees of protection and runout tolerances. This recording will cover those topics.

Can Premium Efficient Motors Be Rewound without Degrading Efficiency?

  • June 2020
  • Number of views: 356
  • Article rating: No rating
FREE for Members of EASA
Convention presentation

In 2003, EASA and AEMT (Association of Electrical and Mechanical Trades in the UK) issued a report that proved rewinding motors in accordance with prescribed good practices would maintain efficiency and reliability. But in recent years, claims abounded that premium efficient motors could not be rewound without degrading efficiency. This recording discusses the latest EASA/AEMT research that included independent, third-party testing.

AC Electric Motor Design

  • April 2020
  • Number of views: 529
  • Article rating: 3.0
Webinar recording bundle

A special discounted collection of 6 webinar recordings focusing on AC electric motor design.

Just $30 for EASA members!

DC Motor Electrical Procedures

  • April 2020
  • Number of views: 492
  • Article rating: No rating
Webinar recording bundle

A special discounted collection of 6 webinar recordings focusing on DC motor electrical procedures.

Just $30 for EASA members!

Switched Reluctance Motor Basics

  • March 2020
  • Number of views: 624
  • Article rating: No rating
Article

Service centers are seeing an increase in the number of SRMs received for repair, and some of the technicians encountering them are unfamiliar with how they work. As with any other rotating machine, a basic understanding of operating principles can be useful in troubleshooting and repair. One of the most critical things for service center personnel to understand upfront is that these machines cannot be operated without a special drive, which typically would need to be supplied by the end-user or the manufacturer.

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

READ MORE ABOUT THE FEATURES AND BENEFITS

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.

VIEW & DOWNLOAD

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.

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EASA AR200

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.

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