Vacuum circuit-breaker

Abstract

The invention belongs to a high-voltage transmission and distribution device which relates to a vacuum breaker. The vacuum breaker comprises a vacuum explosion chamber, the upper end of the vacuum explosion chamber is provided with a fixing electric conducting plate which is used for connecting a fixed contact in an electric conducting mode, the electric conducting plate is connected with an electric conducting bracket of the breaker, a moving contact which is arranged on the lower end of the vacuum explosion chamber is connected with a driving member through an insulation screw rod, the center of the electric conducting plate is provided with a threaded hole which is matched with a regulating block with external threads, and the regulating block and the upper end of the fixed contact of the vacuum explosion chamber are connected and fixed by a fastener. Because the regulating mode of the vacuum breaker is carried out on one end of the fixed contact, parts are relatively fewer in the position, and the operation space is larger, parts which need to be disassembled are fewer too, therefore, the regulating process is simple and convenient.

Description

technical field [0001] The invention belongs to high-voltage power transmission and distribution equipment, and relates to a vacuum circuit breaker. Background technique [0002] Ordinary vacuum circuit breakers generally include a vacuum interrupter installed on a conductive support. The upper end of the vacuum interrupter is the fixed end connected to the static contact, and the lower end of the vacuum interrupter is the operating end connected to the moving contact. The operating end is connected with transmission components such as insulating screws to control the opening and closing of each phase contact. In order to adjust the opening and closing synchronism, opening and closing speed, opening distance and other indicators of the contacts of each phase, the traditional method is to remove the insulating screw at the operating end from the moving contact, and adjust it by screwing in and out of the thread. Its length is to achieve the purpose of adjusting the correspon...

AI Technical Summary

Problems solved by technology

In order to adjust the opening and closing synchronicity, opening and closing speed, opening distance and other indicators of the contacts of each phase, the traditional method is to remove the insulating screw rod at the operating end from the moving contact, and adjust it by screwing in and out of the thread. Its length is to achieve the purpose of adjusting the corresponding operating parameters. Since the insulating screw connected with the moving contact is installed at the bottom of the device and is close to the drive shaft, the operating space is narrow, which makes the adjustment process very complicated and cumbersome.

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