|
|
|
How to Get the Most From Your Electric Motors (pdf)*
This booklet is a guide for performing routine maintenance of electric motors. In addition, it provides detailed background on service conditions, construction features, application considerations, installation, spare motors, and repair versus replacement. It also contains a helpful glossary of terms.
|
|
|
The State of the EASA Industry (pdf)*
This white paper presents the results of a year-long study of the state of the industry. Indian River Consulting Group developed statistically valid data based on primary research that surveyed EASA members, as well as their customers and suppliers. The results were presented by Michael Marks at EASA's 2003 Convention in San Francisco. Presentation materials from each of three convention sessions are available in the Members Only section of EASA's Web site.
|
|
|
The Effect of Repair/Rewinding on Motor Efficiency (pdf)*
Based on a joint study by EASA and the Association of Electrical and Mechanical Trades (AEMT) of the United Kingdom, this publication concludes that using best repair/rewind practices maintains motor efficiency. Besides an Executive Summary, the report provides complete test data, extensive background information about test procedures and methodology, information about best practice repair/rewind procedures, resources for further reading, and an entire chapter on repair/replace considerations.
|
|
|
Guidelines for Maintaining Motor Efficiency During Rebuilding (pdf)*
This article provides guidelines that service centers can follow to retain the operating efficiency of the electric motors they rewind and rebuild. It includes a list of DOs & DON'Ts, safe values, and correct procedures that are based on studies of variables that can impact the efficiency of rewound electric motors--e.g., core burnout temperature, winding design, bearing type, air gap and winding resistance.
(Note: The article was first published in May 1992. It was revised by EASA's Technical Services Committee in September 1999.)
|
|
|
Guidelines for Repair/Replace Decisions and Performance Optimization (pdf)*
This paper provides a guideline for implementing EASA Recommended Practices to ensure that repair will not degrade motor performance. It also shows that operating efficiency can sometimes be improved by the repair process. It includes criteria for determining when repair is impractical or might lead to reduced efficiency. Finally, it reports the status of a major test program on the efficacy of EASA Recommended Practices.
(Note: This paper was presented at EASA's Convention in Chicago, Illinois, June 25, 2001.)
|
|
|
A Guide to AC Motor Repair and Replacement (pdf)*
Besides helping you make the best decision when deciding whether to repair or replace AC motors, this booklet also highlights the importance of having an implementation plan ready before failures occur. Information about how to figure energy costs and why this is important when making repair/replacement decisions is also included.
|
|
|
Failures in Three-Phase Stator Windings
This series of photographs accurately depicts the most common types of winding failures that occur in three-phase AC stators. Probable causes of failure are also indicated for each type. A photograph of a good stator winding is provided for comparison.
|
|
|
|
