Disconnector equipped with fuse for low voltage power lines. (Machine-translation by Google Translate, not legally binding)

摘要

Disconnector equipped with a fuse for low voltage power lines, of the hinge type comprising a fixed support element (1) carrying two fixed contacts (8), capable of connection to the electric line, and a mobile element (10), which is articulated through a hinge (12) to the fixed support element (1) and which carries a fusible valve comprising a base (29, 36), electrically isolated, and a cartridge (32) that is attached to the base (29, 36) removably and carrying two moving blade contacts (33), connected together by means of a fusible element; it being possible for said movable command element (10) to be rotated manually with respect to the support element (1) around said hinge (12) between a closed position in which said two mobile contacts (33) are inserted in respective fixed contacts (8), and an open position in which the contacts (33) are disengaged from the respective fixed contacts (8) and the cartridge (32) of the fusible valve can be detached from its base (29, 36) to allow replacement, which is characterized by the fact that: the base (29, 36) of the fusible valve is movable relative to the movable command element (10), between a retracted position in which, when such a moving element it is in its closed position, the movable contacts (33) are disengaged from the fixed contacts (8), and an extracted position in which, in said closed position of the mobile command element (10), the movable contacts (33) they are inserted in the co ntacts (8) fixed, a second mobile command element (18) is mounted rotatably on the first mobile command element (10) and commands, through means (19, 26) command, the distance from the base (29, 36) of the cartridge (32) from its retracted position to its extracted position and vice versa, and locking means (20, 21, 28) are provided which allow, only in the closed position of the first mobile command element (10), separating the base (29, 36) of the fusible valve from its retracted position to its extracted position and vice versa, and permit, on the other hand, to move the first mobile command element (10) from its closed position to its open position only when the base (29, 36) of the fusible valve is in its extracted position. (Machine-translation by Google Translate, not legally binding)