The invention relates to a device and a method for limiting the rail potential in a DC railway, a low-impedance link (4) being arranged between the rail (1) and the ground (2) below the structure. A switchgear (6) which is connected to a voltmeter (3) via a control line is connected to the link (4), the voltmeter (3) being arranged between the rail (1) and the ground (2) below the structure. According to the invention, the switchgear (6) comprises a thyristor (5), to the triggering input of which the voltmeter (3) is connected. An ammeter (7) which is connected to the triggering input of the thyristor (5) via a control unit (8) is connected to the link (4). Said control unit (8) keeps re-triggering the thyristor (5) until the value of the current has dropped below a threshold value.


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    Title :

    VORRICHTUNG UND VERFAHREN ZUR BEGRENZUNG DES SCHIENENPOTENZIALS BEI EINER GLEICHSTROMBAHN


    Additional title:

    DEVICE AND METHOD FOR LIMITING THE RAIL POTENTIAL IN A DC RAILWAY
    PROCÉDÉ ET DISPOSITIF POUR LIMITER LE POTENTIEL DES RAILS D'UNE VOIE FERRÉE À COURANT CONTINU


    Contributors:

    Publication date :

    2018-07-18


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    German


    Classification :

    IPC:    B60M Speiseleitungen oder Vorrichtungen am Gleis für elektrisch angetriebene Fahrzeuge , POWER SUPPLY LINES, OR DEVICES ALONG RAILS, FOR ELECTRICALLY-PROPELLED VEHICLES / H02H EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS , Schutzschaltungsanordnungen



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