Side-mounted high-voltage vacuum circuit breaker

Abstract

The invention discloses a side-mounted high-voltage vacuum circuit breaker, which includes a base and three poles; an operating mechanism for driving the opening and closing main shaft to rotate is provided on the outside of the base shell; The transmission crank arm on the main shaft of the gate, the reinforced limit plate with a limit slide hole fixed on the top wall of the base, the transmission plate, the upper pin shaft and the lower pin shaft; the lower end of the transmission plate passes through the lower pin shaft and the transmission crank arm Rotationally connected, the upper end of the transmission plate is connected with the bottom end of a corresponding insulating rod through the upper pin shaft; the upper pin shaft is located in the limit slide hole of the reinforced limit plate; The plate drives the insulating pull rod; the operating mechanism drives the opening and closing main shaft to reciprocate; under the cooperation limit of the upper pin shaft and the limit slide hole, the opening and closing main shaft synchronously drives the three insulating pull rods along the up and down direction through the three crank arm components. Reciprocating movement for opening and closing action. The invention can be applied in traditional switch cabinets and ring network cabinets.

Description

technical field [0001] The invention belongs to the technical field of high-voltage electrical equipment, and in particular relates to a side-mounted high-voltage vacuum circuit breaker. Background technique [0002] The structure of a traditional post-mounted vacuum high-voltage circuit breaker generally includes a base, three poles set on the base and an operating mechanism set in the base; Vacuum interrupter with static contacts and moving contacts and insulating pull rods connected to the moving contacts; the middle part of each pole is also equipped with a power outlet terminal electrically connected to a corresponding moving contact; each power input terminal It is electrically connected with the static contact of a corresponding vacuum interrupter; the operating mechanism includes an opening and closing main shaft, three crank arm assemblies arranged on the opening and closing main shaft and an operating mechanism arranged in the base; each crank arm assembly and The...

AI Technical Summary

Problems solved by technology

[0003] At present, the high-voltage circuit breakers used in switch cabinets and ring network cabinets generally use inflatable high-voltage circuit breakers or vacuum high-voltage circuit breakers with special structures, and their prices are relatively high; The vacuum high-voltage circuit breaker on the column cannot be applied in the switch cabinet and the ring network cabinet, which leads to the high price of the existing switch cabinet and the ring network cabinet

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