Disconnection arrangement and method for operation of a...

H - Electricity – 01 – T

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H01T 1/14 (2006.01)

Patent

CA 2667441

A surge arrester (3) is arranged in an output current path (2) from an electrical power supply system (1). A cut-off arrangement (5) is also provided in the output current path (2) and has a first electrode (8) and a second electrode (9). The second electrode (9) has a recess (14) in which at least part of a gas generator (18) is arranged. The recess (14) is covered by a cover (12). When the cut-off arrangement (5) is responding, an additional volume for accommodation of expanded gas is necessarily provided, in addition to an arcing area (15) provided in the interior of the cut-off arrangement (5).

L'invention concerne un dispositif de coupure (5), qui présente une première électrode (8) et une deuxième électrode (9) et qui est prévu en plus dans le trajet de courant de fuite (2) d'un réseau électrique (1), trajet dans lequel est disposé un éclateur (3). Un évidement (14) est prévu dans la deuxième électrode (9), dans lequel est disposé au moins pour partie un générateur de gaz (18). L'évidement (14) est recouvert par un élément de recouvrement (12). Lors d'une réaction du dispositif de coupure (5), du volume supplémentaire pour recevoir du gaz détendu est mis à disposition en cas de besoin au niveau d'une chambre d'arc (15) prévue à l'intérieur du dispositif de coupure (5).

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