GIL device and particle catcher

Abstract

The invention relates to a GIL device and a particle catcher. The GIL device comprises a cylinder body, wherein the particle catcher is arranged in the cylinder body; when the particle catcher is used, the surface, close to one side of a central conductor in the cylinder body, of the particle catcher is an insulating surface; in the axial direction of the cylinder body, the cylinder body is provided with a wall surface conductive section which is positioned on at least one side of the particle catcher, and the inner wall surface of the wall surface conductive section is a conductive wall surface; and a gap is formed between the particle catcher and the inner wall of the cylinder body to form a shielding area for collecting particles. According to the GIL device disclosed by the invention,the part, adjacent to the particle catcher, of the inner wall surface of the cylinder body of a GIL pipeline is the wall surface conductive section, so that metal particles jump along the axial direction and the radial direction of the cylinder body under the action of electric field force; when the particles move to the wall surface conductive section, the electric field force borne by the particles is relatively large, and the particles move relatively quickly; and the surface of one side of the particle catcher is the insulating surface, so that the metal particles in contact with the particle catcher cannot be electrified again, and the metal particles can be caught by the particle catcher.

Description

technical field [0001] The present invention relates to a GIL device and a particle trap. Background technique [0002] With the rapid development of my country's economy, the demand for electricity is increasing, and due to the constraints of terrain environmental conditions or safety requirements, gas insulated transmission lines (GIL) have been used more and more. The GIL includes a metal cylindrical body filled with insulating gas, a conductive and current-flowing conductor provided inside the cylindrical body, and an insulator for insulating and supporting the conductor. [0003] Metal particles are inevitably generated during the production, transportation and operation of GIL. Due to the effect of gravity, these metal particles will be distributed under the cylinder. When the device is powered on, these metal particles will overcome the gravity under the action of the electric field. And move along a certain trajectory, if these particles are not captured, the partic...

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Problems solved by technology

[0005] The object of the present invention is to provide a kind of GIL device, to solve the GIL device in the prior art to the problem that the capture effect of particle is not ideal, provide a kind of particle catcher at the same time, has solved the particle catcher in the prior art to the GIL The problem of unsatisfactory capture effect of metal particles in the device

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