A particulate capture structure and a high-voltage conductor insulation support structure

Abstract

The invention relates to the technical field of high-voltage insulation, in particular to a particle capture structure and a high-voltage conductor insulation support structure. The particle capture structure includes: a thin-walled cylinder, which is placed on the outside of the high-voltage conductor when in use, and forms a particle capture gap with the outer cylinder; the wall of the thin-walled cylinder is provided with multiple capture holes; the thin-walled cylinder One end has a connecting structure for connecting with the insulating support, and the other end is provided with an everted lip, and an insulating layer is provided on the outer surface of the everted lip at a position corresponding to the circumferential direction of the catch hole. A particle trap is formed between the thin-walled cylinder and the outer cylinder. When the conductive particles regain mobility and float, the conductive particles near the opening of the particle trap will move toward the opening of the particle trap, that is, the thin-walled cylinder away from the connection. When one end of the structure moves, the conductive particles will first hit the insulating layer. After the impact, the conductive particles are refracted by the insulating layer and fall back into the particle trap to be recaptured, thus preventing the particles from escaping.

Description

technical field [0001] The invention relates to the technical field of high-voltage insulation, in particular to a particle capture structure and a high-voltage conductor insulation support structure. Background technique [0002] Gas-insulated metal-enclosed transmission lines (GIL) have high operational stability and reliability, so they are widely used in high-voltage transmission projects. However, in the process of production, assembly and power transmission, metal conductive particles will be generated inside the GIL. The existence of conductive particles will greatly reduce the insulation level of the GIL, and even cause insulation accidents. At present, the conductive particles are mainly captured and suppressed by arranging particle traps inside the GIL. For example, the invention patent application document with the application publication number CN109686513A discloses a GIL with a particle trap internally designed. The GIL includes a housing, a high-voltage conduc...

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Problems solved by technology

[0003] The purpose of the present invention is to provide a particle trapping structure to solve the problem of particle escape in existing particle traps; the present invention also provides a high-voltage conductor insulation support structure to solve the problem of the GIL in the prior art. The problem of conductive particles easily escaping from particle traps

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