Method for improving vacuum surface flashover performance of solid insulating medium

A technology of surface flashover and solid insulation, which is applied to insulators, electrical components, circuits, etc., can solve the problems of complex processes, expensive raw materials, and is not suitable for large-scale application in industrial production, and achieves simple process, process safety, and improved flash The effect of network voltage

Inactive Publication Date: 2018-09-21
XI AN JIAOTONG UNIV
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Problems solved by technology

However, these processing methods require complex processes and expensive raw m...

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  • Method for improving vacuum surface flashover performance of solid insulating medium
  • Method for improving vacuum surface flashover performance of solid insulating medium
  • Method for improving vacuum surface flashover performance of solid insulating medium

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Embodiment Construction

[0025] The invention provides a method for improving the vacuum surface flashover performance of a solid insulating medium. The epoxy resin and its aluminum oxide micron The photodischarge plasma treatment instrument performs air plasma treatment on it. The invention carries out surface modification treatment on the epoxy resin and its micro-composite material through air plasma treatment, and the method can change the surface conductivity and trap distribution of the insulating material, thereby adjusting or improving the vacuum surface flashover characteristic of the material. The method has the advantages of simple process, safe process and environmental friendliness, and can be widely applied to the surface treatment of solid insulating dielectric materials in the field of high-voltage insulating technology.

[0026] The present invention is a method for improving the vacuum surface flashover performance of a solid insulating medium, comprising the following steps:

[002...

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Abstract

The invention discloses a method for improving the vacuum surface flashover performance of a solid insulating dielectric. With an epoxy resin and aluminum oxide micron composite material adopted as asubstrate, an insulating material to be treated is arranged in a closed cavity; a low-pressure glow discharge plasma treatment instrument is adopted to perform air plasma treatment on the insulating material to be treated, so that surface modification treatment can be performed on the epoxy resin and aluminum oxide micron composite material, and therefore, the surface conductivity and trap distribution of the insulating material can be changed. With the method of the invention adopted, the direct-current vacuum surface flashover voltage of the insulating medium material can be significantly improved. The method has the advantages of simple process, safe process and environmental friendliness, and can be widely used in the high-voltage insulating material field.

Description

technical field [0001] The invention belongs to the technical field of high-voltage insulating materials, and in particular relates to a method for improving the vacuum surface flashover performance of a solid insulating medium. Background technique [0002] When the composite insulation system composed of liquid, gas or vacuum and solid insulating material is operated under the action of high electric field, the solid insulating dielectric material introduced into the high-voltage electrical equipment based on the need for insulating support often occurs surface flashover at the interface phenomenon, and the flashover voltage along the surface is far lower than the vacuum gap of the same size or the bulk breakdown voltage of insulating materials, which seriously reduces the insulation performance of power equipment, especially the system composed of vacuum and solid insulating medium, which is a high-voltage electrical equipment and It is one of the main restrictive factors...

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Application Information

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IPC IPC(8): H01B19/04H01B19/00
CPCH01B19/04H01B19/00
Inventor 李盛涛岳文莹聂永杰
Owner XI AN JIAOTONG UNIV
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