GE-ALSTOM TRANSACTION Effective 2nd November 2015, GE acquired Alstom’s energy businesses. The Alstom content available on this site is for information purposes only.
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On-board transformers lifecycle management

Alstom Grid has a long history of manufacturing Traction Transformers. 

The knowledge and expertise gained from this activity enables us to offer a specialist repair and upgrade service from our Stafford TR3 Transformer Workshop in the UK and from our French facility based in Le Petit Quevilly.

Traction transformer service is conducted in a dedicated area of the workshop which is extensively equipped, including winding machines, vacuum process oven, oil and silicone process plants and full High Voltage test facility. In addition, the workshop includes some of the latest diagnosis tools and benefits from a comprehensive oil test laboratory.

Alstom Grid is also proud to provide customised services to support on-board transformers already in operation. From Rolling Stocks manufacturers to Railway Operators, Alstom Grid offers a full support and maintenance to optimise transformer performance throughout its lifecycle.


  • Condition assessment and diagnosis
  • Repair and maintenance


  • Strategic inventory tailored to product installed base
  • Supply of spare parts


  • Overhauling & mid-life extension
  • Retrofit


Downloads for the On-board transformers lifecycle management