Mechanical explosion-proof structure of high-voltage bushing equipment

Abstract

The invention relates to the technical field of high-voltage insulating bushings, in particular to a mechanical explosion-proof structure of high-voltage bushing equipment. The structure comprises a bushing body and a conducting rod, and the conducting rod is arranged in the bushing body in a penetrating mode. The inner cavity of the bushing body is provided with an insulating medium, and a top pressure relief device is arranged at an upper end opening of the bushing body. A pressure relief cavity of the top pressure relief device is communicated with the inner cavity of the bushing bod. A bottom pressure relief device is arranged at a lower port of the bushing body, and a pressure relief cavity of the bottom pressure relief device is communicated with the inner cavity of the bushing body.The two ends of the conducting rod are respectively arranged on the top pressure relief device and the bottom pressure relief device in a penetrating mode. The structure is reasonable, and on the basis that the structure of an existing bushing type equipment body is not changed, the impact energy is relieved through the mechanical strength tolerance of a material, thereby avoiding the destructiveinfluence of explosion of the bushing body on surrounding objects and achieving the explosion-proof function. Moreover, the structure is easy to install, is convenient for the quick replacement of the existing bushing equipment, and is high in good engineering application and popularization values.

Description

technical field [0001] The invention relates to the technical field of high-voltage insulating bushings, in particular to a mechanical explosion-proof structure of high-voltage bushing equipment. Background technique [0002] Bushing explosion is one of the important causes of fires in substations. Although the probability of bushing fires is low, once a fire occurs for some reason, it often causes irreparable damage to other connected equipment (such as transformers) in the substation, even Cause damage to other nearby electrical equipment. At present, the materials commonly used inside high-voltage bushings include insulating oil, cardboard, etc., all of which are flammable and may continue to burn when exposed to open flames. At the moment when the internal insulation of the bushing breaks down, the pressure wave formed by a large amount of gas will cause the bushing to burst or the sealing structure at the bottom of the bushing to rupture. The combination of electrical ...

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Problems solved by technology

Although the above-mentioned explosion-proof scheme has achieved a certain explosion-proof effect, it makes the surrounding environment of the overall structure more complicated, increases the cost in processing and maintenance, and is not conducive to large-scale application

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