An electrical apparatus, including: a circuit breaker having a breaking capacity and a breaking current; a DC voltage source including two batteries connected in parallel, connected in series with the circuit breaker, the sum of short-circuit currents of the batteries being greater than the breaking capacity, each battery including: a first branch including storage batteries and a switch connected in series; a second branch connected in parallel with the first branch and including a free-wheeling diode; an ammeter measuring output current; and a control circuit configured to detect a short-circuit. The control circuits simultaneously keep a majority of switches open and close one switch to apply a current passing through the circuit breaker which is higher than the breaking current and lower than the breaking capacity.


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    Title :

    Protecting a power supply including a plurality of batteries in parallel against an external short-circuit


    Contributors:

    Publication date :

    2018-10-23


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / H02H EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS , Schutzschaltungsanordnungen / H02J CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER , Schaltungsanordnungen oder Systeme für die Abgabe oder Verteilung elektrischer Leistung



    PROTECTING A POWER SUPPLY INCLUDING A PLURALITY OF BATTERIES IN PARALLEL AGAINST AN EXTERNAL SHORT-CIRCUIT

    CHATROUX DANIEL / CARCOUET SEBASTIEN / ECRABEY JACQUES et al. | European Patent Office | 2016

    Free access

    PROTECTING A POWER SUPPLY INCLUDING A PLURALITY OF BATTERIES IN PARALLEL AGAINST AN EXTERNAL SHORT-CIRCUIT

    CHATROUX DANIEL / CARCOUET SEBASTIEN / ECRABEY JACQUES et al. | European Patent Office | 2016

    Free access


    Protection of a power supply including a plurality of batteries in parallel against an external short circuit

    CHATROUX DANIEL / CARCOUET SEBASTIEN / DAUCHY JULIEN | European Patent Office | 2018

    Free access

    PROTECTION OF POWER SUPPLY CONTAINING PARALLELY CONNECTED BATTERIES AGAINST EXTERNAL SHORT CIRCUIT

    CHATROUX DANIEL / CARCOUET SEBASTIEN / ECRABEY JACQUES et al. | European Patent Office | 2018

    Free access