Switching device combination for capacitive loads connected...

H - Electricity – 01 – H

Patent

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H01H 9/26 (2006.01)

Patent

CA 2544371

This publication discloses a switching device combination for capacitive loads (3) connected to a direct voltage. The switching device combination includes an actual switch component (1) for connecting voltage to the capacitive load (3), a charging switch component (2) for connecting charging voltage to the capacitive load in the initial stage, which charging switch component is dimensioned for a lower current than the actual switch component (1), a controller component (4), by means of which the actual switch component (1) is controlled from an open state to a closed state and vice versa, with the aid of a mechanical lever (5), which is connected to a first shaft (6), and delay elements (11) for delaying the connection of the actual switch component (1), so that the closed charging switch component (2) will have time to charge the capacitive load (3) before the connection of the actual switch component (1). According to the invention, the controller component (4) includes a second shaft (7), which is operationally connected to the first shaft, in order to control the charging switch component (2).

Cette invention porte sur une combinaison de dispositifs de commutation pour charges capacitives (3) connectées à une tension directe. Cette combinaison de dispositifs de commutation comprend un composant de commutation effectif (1) servant à connecter la tension à la charge capacitive (3), un composant de commutation de charge (2) servant à connecter la tension de charge à la charge capacitive dans l'étape initiale, lequel composant de commutation de charge est dimensionné pour un courant inférieur à celui du composant de commutation effectif (1), un composant unité de commande (4) au moyen duquel le composant de commutation effectif (1) est commandé pour qu'il passe d'un état ouvert à un état fermé et inversement à l'aide d'un levier mécanique (5) qui est connecté à un premier arbre (6), ainsi que des éléments de retard (11) servant à retarder la connexion du composant de commutation effectif (1) afin que le composant de commutation de charge (2) fermé ait le temps de charger la charge capacitive (3) avant la connexion du composant de commutation effectif (1). Selon cette invention, le composant unité de commande (4) comprend un second arbre (7) qui est relié de manière opérationnelle au premier arbre, ce qui permet de commander le composant de commutation de charge (2).

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