Vacuum interruption mechanism used for strengthening electrical insulation properties

Abstract

The invention discloses a vacuum interruption mechanism used for strengthening electrical insulation properties, which comprises a vacuum interrupter, a moving conducing rod and a static conducting rod connected with the vacuum interrupter, and contact terminals arranged on external ends of the moving conducting rod and the static conducting rod, and is characterized in that: the vacuum interruption mechanism also comprises an insulation box of which the top is provided with an opening and two opposite sides are provided with through holes; the vacuum interrupter is arranged in the insulation box; and the moving conducing rod and the static conducting rod pass a corresponding through hole respectively. The vacuum interruption mechanism has the advantages of improving the electrical insulation properties and effectively reducing the overall volume of a high voltage switch.

Description

technical field [0001] The invention belongs to the technical field of high-voltage switch structure design, and in particular relates to a vacuum arc extinguishing mechanism for enhancing electrical insulation performance. Background technique [0002] Schematic diagram of the structure of a traditional high-voltage load switch, including a shell, a vacuum arc extinguishing mechanism and an operating mechanism arranged in the shell; the vacuum arc extinguishing mechanism includes three vacuum arc extinguishing chambers, and a moving conductive rod connected to each vacuum arc extinguishing chamber and a static conductive rod; the operating mechanism includes a drive spindle and three crank arm assemblies, one end of each crank arm assembly is set on the drive spindle, and the other end is connected to a corresponding dynamic conductive rod; when opening and closing , the drive spindle synchronously drives the three moving conductive rods to move through the three crank arm ...

AI Technical Summary

Problems solved by technology

This kind of traditional high-voltage load switch is because each vacuum arc extinguishing mechanism is directly arranged on the bottom wall of the housing, and each moving conductive rod and the connecting rod in a corresponding crank arm assembly, as well as each static conductive rod are all made of metal, and are all made of metal. Exposed to the outside, in order to ensure the electrical insulation performance between the circuit equipment of each phase, it is necessary to reserve a large enough distance between the crank arm components, that is, between the vacuum arc extinguishing mechanisms, resulting in a large overall volume of this traditional high-voltage load switch. Not only increases the cost, but also brings various inconveniences to transportation and installation

Images