An electric point machine is a motor-driven device which operates railway track switches (points). Failure of such a device causes delay to trains and, on privatised railways, is likely to incur a financial penalty for the infrastructure owner. The most probable types of fault occurring with a typical point machine design are described. Using analyses of the results of laboratory and field tests, techniques for condition monitoring are reviewed. A net energy technique is proposed and is shown to produce discrimination and repeatability. The technique uses non-invasive sensors and may have a pay-back period of under one year for a large installation.


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    Title :

    Condition monitoring of railway electric point machines


    Contributors:

    Publication date :

    2002-11-01


    Size :

    9 pages



    Type of media :

    Article (Journal)


    Type of material :

    Print


    Language :

    English




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