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Articles in Industry Publications

The Effect of Repair/Rewinding on Premium Efficiency/IE3 Motors

2019 Rewind Study

  • January 2021
  • Number of views: 18500

This valuable publication explains the findings of a major study that analyzed the impact of repair/rewinding on the energy efficiency of Premium Efficiency/IE3 electric motors. This study was a follow up to a 2003 study.


Electromechanical Repair

  • April 2020
  • Number of views: 8426
Webinar recording bundle

A special discounted collection of 7 webinar recordings focusing on various aspects of electromechanical repair.

Just $35 for EASA members!


Selecting Replacement DC and 3-Phase Squirrel Cage Motors

  • September 2019
  • Number of views: 6775
Webinar recording

On many occasions, a different motor type is desired or needed. In these cases it is essential that the replacement motor provides the required performance, and do so reliably.


Selecting Replacement 3-Phase Squirrel Cage Motors

How to make sure the motor is matched to your specific application

  • March 2019
  • Number of views: 5894
Trade press article — Electrical Construction & Maintenance

Selection of replacement motors is usually straightforward if the ratings are equivalent. Sometimes, however, a different type of motor is necessary or desirable. For success in these cases, it is essential that the replacement motor provide the required performance — and do so reliably.

Motor maintenance trends: 6 factors to evaluate

Recent EASA research studies provide new insights on repair vs. replace to help motors reliably drive machinery, pumps, conveyors, and other vital industrial equipment

  • June 2018
  • Number of views: 8670
Trade press article — Plant Engineering

When faced with an ailing or failed motor, plant operators typically consider whether to repair or replace it. According to a 2014 study conducted by Plant Engineering magazine for the Electrical Apparatus and Service Association (EASA), just more than one-half of plants have a policy of automatically replacing failed electric motors below a certain horsepower rating. While that horsepower rating varied depending upon the plant’s installed motor population, the average rating was 30 hp.

While such policies address a portion of the motors used at most plants, they do not cover what occurs with those motors. That question was addressed in a more recent research project commissioned by EASA that focused on the disposition of electric motors considered for repair.

AC Three-Phase Motor Service Order

  • September 2016
  • Number of views: 9769

An easy-to-use, 4-page service order worksheet providing places to record the most important motor repair data.

How to ensure effective motor repair and rewind

Speak the same language as your service center when it comes to setting performance expectations

  • May 2016
  • Number of views: 8194
Trade press article — Plant Services

Electric motor efficiency can be maintained during repair and rewind by following defined good practices. This article builds on a previous discussion of PM and PdM for three-phase squirrel-cage motors ("PM and PdM for electric motors") by outlining some of the expectations and good practices for repairs of these types of motors.

Can you repair energy-efficient motors? Maybe.

  • April 2016
  • Number of views: 7664
Trade press article — Wood Business

Most plant engineers and maintenance staff can attest to the reliability of standard-efficiency motors that have been repaired or rewound using industry best practices. They also know repair can cost far less than replacement, especially when the motor has special features. Despite this, some of them hesitate to have failed energy-efficient motors (NEMA Premium models, in particular) repaired because they’ve heard it degrades efficiency.

So, what’s the right answer? Is the decision to repair, rewind or replace a failed energy-efficient motor as simple and straightforward as you may have heard?

Voltage and horsepower

Follow formula to run motor on less-than-nameplate voltage

  • May 1999
  • Number of views: 4040

You may have experienced this situation before: Your best customer just called to say he has a plant down and is in desperate need of a 100 hp, 6-pole, 460-volt motor. And he needs it now! You check your stock and find one that's pretty close. The frame is right, but it's a 125 hp unit at 575 volts. What can you do? You know that the motor will run at 460 volts, but how much horsepower will it produce?