DISCONNECTOR FOR ELECTRICAL LINES AND SYSTEMS WITH HIGH CURRENT AND HIGH SHORT-CIRCUIT VALUE

A disconnector (10) for electrical lines with high current and high short-circuit value, of the type comprising - two mutually spaced fixed structures (11, 12), each for connection to a respective portion of an electrical line, - a movable connection assembly (13), which is supported by a first one (11) of the two fixed structures (11, 12) with means (14) for the movement of the movable connection assembly (13) toward the second one (12) of the two fixed connection structures (11, 12). Each one of the fixed connection structures (11, 12) comprises - a tubular jacket (15, 16), for support and conduction, which supports - at one end, annular contact elements (17, 18) arranged for movable coupling with a corresponding moving contact (19, 20) of the movable connection assembly (13), - at the opposite end, couplings (23, 24) for connection to the corresponding portion of electrical line. The movable connection assembly (13) comprises at least two moving contacts (19, 20) carried within the first fixed connection structure (11) by a supporting frame (25) connected to the movement means (14); the movement means (14) are configured for the translation of the moving contacts (19, 20) until coupling occurs with the corresponding annular connection elements (18) of the second fixed connection structure (12), the moving contacts (19, 20) being coupled stably to the annular connection elements (17) of the first fixed structure (11) that contains them and supports them. L'invention concerne un disjoncteur (10) pour lignes électriques présentant un courant fort et une valeur de court-circuit élevée, du type comportant: -deux structures fixes (11, 12) mutuellement espacées, dont chacune est destinée à être reliée à une partie respective d'une ligne électrique, -un ensemble mobile (13) de connexion, qui est porté par une première (11) des deux structures fixes (11, 12) avec des moyens (14) servant au mouvement de l'ensemble mobile (13) de connexion en direction de la deuxième (12) des deux structures fixes (11, 12) de connexion. Chacune des structures fixes (11, 12) de connexion comporte: -une chemise tubulaire (15, 16), servant au soutien et à la conduction, qui soutient: -à une extrémité, des éléments annulaires (17, 18) de contact disposés en vue d'un couplage mobile à un contact mobile (19, 20) correspondant de l'ensemble mobile (13) de connexion, -à l'extrémité opposée, des accouplements (23, 24) destinés à se connecter à la partie correspondante de ligne électrique.