2014 L'article est relatif à l'étude des capacités de conduction et de réisolement d'un conjoncteurdisjoncteur à vide. Le temps de conduction est de 27 03BCs et le temps de réisolement imposé est inférieur à 100 03BCs. Nous avons mis en évidence l'influence des paramètres physiques et géométriques afin d'obtenir le régime d'arc diffus donnant accès aux meilleures performances de disjonction. Ainsi le pouvoir de coupure du prototype testé, a dépassé 109 V.A (36 kA, 44 kV). Abstract. 2014 The article is relative to the recovery phenomena and conduction capacities of a fast triggered vacuum switch. 27 03BCs current pulses are used. Fixed recovery times are less than 100 03BCs. We study the influence of physical and geometrical parameters in order to obtain the arc diffuse mode which allows best switching performances. Thus a breaking capacity more than 109 V. A is obtained with a 36 kA current pulse and 44 kV recovery voltage.
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