DISCONNECTOR CONTACT ASSEMBLY Russian patent published in 2021 - IPC H01H31/02 

FIELD: electrical engineering.

SUBSTANCE: invention relates to the field of electrical engineering, in particular to high-voltage disconnectors of the semi-pantograph type, in particular to the contact assembly, made with a folding contact knife. The assembly of the disconnector contact system includes a fixed contact, a movable contact in the form of a folding contact knife containing a leading and a driven half-knife, while one end of the leading half-knife is pivotally connected to the fixed base and kinematically connected to the drive, the ends of the leading and driven half-knife facing each other are pivotally connected hinged by means of a gear, interacting with a rod, one end of which is pivotally connected to a fixed base. Toothed sectors are rigidly fixed at the ends of the leading and driven half-knives facing each other. The half-knives are pivotally connected to each other by means of a lever, one arm of which is mounted on axes passing through the toothed sectors in such a way that the toothed sectors with the lever arm form a gear with external engagement. The second arm of the lever is pivotally connected to the end of the rod installed outside the driving half-knife.

EFFECT: reduction of forces arising in the pivotal connection of two half-knife movable contacts, due to the simplification of the design of the contact knife.

4 cl, 3 dwg