A new measurement system able to detect the occurrence of arcing between the pantograph and the overhead contact line was studied and set up. The system uses photomultiplier tubes to measure the duration of the ultraviolet emission due to electric arcing. The major advantages of the system proposed are its non-invasivity with respect to the pantograph equipment, its reliability and its low cost. Correlation with data acquired during high-speed test runs from different sensors (e.g. currents measured in an equipotential wire between the front and the rear pantographs, images acquired from a TV camera), provided the opportunity to perform an efficient calibration and an analysis of selectivity of the phototube sensor.

    Data from the phototube sensor along with various other information lead to the definition of a reliable index for evaluating the quality of the current collection. The determination of such an index has primary relevance for maintenance activities, for computing the minimal thrusts to be applied to the pantograph at different speeds and for testing new materials for overhead contact wires and collector strips.


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    Title :

    Phototube sensor for monitoring the quality of current collection on overhead electrified railways


    Contributors:
    Bruno, O (author) / Landi, A (author) / Papi, M (author) / Sani, L (author)


    Publication date :

    2001-05-01


    Size :

    11 pages




    Type of media :

    Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    English






    Phototube sensor for monitoring the quality of current collection on overhead electrified railways

    Bruno, O. / Landi, A. / Papi, M. et al. | British Library Online Contents | 2001


    The overhead equipment of the Melbourne suburban electrified railways

    Colwell, H.P. | IET Digital Library Archive | 1950


    Wavelet multiresolution analysis for monitoring the occurrence of arcing on overhead electrified railways

    Barmada, S. / Landi, A. / Papi, M. et al. | British Library Online Contents | 2003