Vacuum circuit breaker and medium voltage inflatable cabinet

Abstract

The invention discloses a vacuum circuit breaker and a medium-pressure air inflation cabinet. The vacuum circuit breaker comprises a bracket, an operation mechanism, an insulation cylinder, an arc extinguish chamber and an insulation draw bar, wherein the insulation cylinder is provided with a through cavity, one end of the cavity is provided with an end cover which is detachably fixed on one end of the insulation cylinder, and the arc extinguish chamber and the insulation draw bar are located in the cavity; the vacuum circuit breaker further comprises an integrated electric conduction device, which comprises an electroconductive clip and a flexible connection, a mounting hole is formed in the electroconductive clip, the flexible connection is fixed on the electroconductive clip, an opening and a groove are formed in the side wall of the mounting hole, a through hole is formed in one side, located at the opening, of the electroconductive clip, a threaded hole is formed in the other side, located at the opening, of the electroconductive clip, and the through hole and the threaded hole are arranged coaxially; a second wire outgoing connector is connected with the flexible connection, a moving contact is plugged in the mounting hole, a screw penetrates through the through hole and is connected with the interior of the threaded hole through threads, and the moving contact is clamped in the mounting hole tightly. According to the invention, the reliability of the vacuum circuit breaker is improved and can be overhauled by a worker conveniently.

Description

technical field [0001] The invention relates to the field of electrical equipment, in particular to a vacuum circuit breaker and a medium-voltage inflatable cabinet. Background technique [0002] As the core component of the medium-voltage inflatable cabinet, the performance of the vacuum circuit breaker directly determines the performance of the entire switchgear. Therefore, the debugging of the performance of the vacuum circuit breaker has always been the key task of the medium-voltage inflatable cabinet, and it is also a difficult task. . The vacuum circuit breaker consists of operating mechanism, insulating cylinder and arc extinguishing chamber. The arc extinguishing chamber is located in the insulating cylinder. The insulating cylinder is also equipped with an outlet connector and an insulating pull rod. The outlet connector is connected to the moving contact of the arc extinguishing chamber through a soft connection. Connection, while the moving contact of the arc ex...

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is to provide a vacuum circuit breaker and a medium-voltage inflatable cabinet, which solves the defects of low reliability of the vacuum circuit breaker in the prior art and is difficult to debug and repair, and realizes the improvement of the reliability of the vacuum circuit breaker. reliability, and it is convenient for workers to overhaul the vacuum circuit breaker

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