Electricity supply authorities are increasingly expected to supply disturbing loads, i.e. to railways who do not take a balanced 3-phase current and/or a sinusoidal current waveform. Consequently the supply voltages acquire these irregularities and could make other customers' equipment maloperate. The causes and effects are briefly explained. An AC traction supply is a type of disturbing load in two respects. It inherently requires a single phase supply and the locomotive takes a rectangular current waveform. The author gives guidance on predicting the likely disturbances based on years of experience in the UK. An illustration is given of the calculation. The emphasis is on the prediction of disturbances. For brevity it is assumed that traction supplies are via 132/25 kV single phase transformers, connected line to line.


    Access

    Access via TIB

    Check availability in my library


    Export, share and cite



    Title :

    Public supply disturbance from AC traction


    Additional title:

    Netzrueckwirkungen auf das oeffentliche Netz aus Wechselstrom-Bahnnetzen


    Contributors:


    Publication date :

    1989


    Size :

    5 Seiten, 3 Quellen


    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




    Active-disturbance-rejection control method for through cophase traction power supply system

    LI XIAOQIAN / LIN YUNZHI / WEI YINGDONG et al. | European Patent Office | 2022

    Free access

    Traction power supply network and traction power supply system

    ZHENG YUEBIN / NIU HUAPENG / MENG XIANGJUN et al. | European Patent Office | 2020

    Free access

    Considerations on single-phase 50-C/S traction from public supply systems

    Mueller, A.E. | Engineering Index Backfile | 1952


    Distortion caused by traction loads in public electricity supply systems

    Morrison, R.E. / Corcoran, J.C. / Walshe, K.A. | Tema Archive | 1979


    Direct-supply traction power supply system

    WU BO / LIU GANG / GONG YANSHENG et al. | European Patent Office | 2020

    Free access