ENVILINE™ TDR - Traction Diode Rectifier

The most reliable and cost effective rectification solutions for DC rail transportation.

To power trains, metros or trams, it is necessary to use an electronic power converter – traction rectifier, converting alternate current into direct current. The ENVILINE TDR (Traction Diode Rectifier) is the most reliable and cost effective rectification solution for DC rail transportation.

We have more than 50 years of experience in design, construction and commissioning of Traction Diode Rectifiers. We offer standard and customized solutions, based on the proven robust technology, with variety of options. More than a thousand of our units are in successful operation in various applications around the world. The London Underground and Polish national railway infrastructure are among our most recent references.

Type testing:
All rectifiers are tested according to EN50328 and IEC60146 and offer overload class according to these standards.

Natural cooling ensures low noise and practically maintenance free operation.

Protection philosophy:
The design of the Traction Diode Rectifier provides output short circuit immunity for at least 10 periods of supply network. Each diode module is protected by a RC circuit. Surge suppression RC circuit is located between “plus” and “minus” to protect the rectifier against over-voltages. Over-temperature and many other protection options are available.

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