AEMT - Association of Electrical and Mechanical Trades

Ex Resources

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

Published: December 2003 with 2019 update

The Effect of Repair/Rewinding on Motor Efficiency: AEMT/EASA Rewind Study and Good Practice Guide illustrates that when performed properly, electric motor repair/rewind maintains efficiency.

Based on a joint study by Association of Electrical and Mechanical Trades (AEMT) of the United Kingdom and EASA, 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.

Ex and Hazardous Area Equipment

The Association is a world leader in the procedures for repair of Hazardous Area apparatus, and provides guidance on quality, and best practice in repairs.

  • The Association supplies BS EN and IEC Standards required for the repair of hazardous area motors to members, as well as other standards.
  • The Association offers labels and forms for the repair of Ex equipment, and certificates of conformity.
  • The Association maintains a register of delegates who have attended the Ex courses and ensures that technicians are made aware of refresher courses when required.

Technical Documents

A wide range of PDFs including free technical papers and publications are available and are being added to all the time.

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Technical Consultancy and Helpline

Provides access to skills and advice utilising the services of technical consultants and linking into the skills of many other specialists in member companies. This is available to help members with technical problems and problems locating spares etc.

Helpline Number

Technical Publications

Many AEMT publications are available on the technical aspects on the repair and rewind of electric motors. Members receive special prices on many of the publications.

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Past Technical Presentations

The Association encourages Members and Associates to give technical papers at meetings or in the Association magazine. To view presentations from past meetings, visit the past AEMT events area of the website.

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