Switch / circuit breaker-disconnector for electrical distribution networks greater than 3.6KV, with cutting and closing of currents in a vacuum interrupter and insulation without SF6.

摘要

Electrical switchgear device for electrical distribution networks greater than 3.6KV, with cutting and closing of currents in a vacuum interrupter and insulation without SF6. The invention applies to the production of electrical distribution equipment, in particular secondary, switch-disconnector and circuit breaker-disconnector without SF6, using a low-power insulating fluid with a greenhouse effect for the insulation and a vacuum interrupter used. transiently for the interrupting and switching on currents function. The invention consists, during the change of state of the position of the disconnector, in temporarily inserting a vacuum interrupter external to the disconnector device through a switching electrode, and excluding it from the circuit in the two stable positions of the switch. 'apparatus. The disconnector function is performed by solutions based on conductive knives movable in rotation or by a movable tube in translation in air or any other dielectric in a sealed enclosure. Figure for the abstract: Fig 2