Preparation method of functional coating with surface insulation defect self-diagnosis and electric field intelligent regulation and control functions

A surface insulation and self-diagnosis technology, applied in coatings, conductive paints, luminous paints, etc., can solve problems such as surface insulation defects, high degree of electric field distortion on the surface of insulating parts, and insulation failures of power equipment, etc., to achieve uniform electric field distribution and optimization Electric field distribution along the surface, applicable to a wide range of effects

Active Publication Date: 2022-07-15
TIANJIN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Power insulation parts are affected by factors such as production process restrictions and operating installation environment, and surface insulation defects are prone to appear along the surface
When the power equipment is in normal operation, the local electric field distortion on the surface of the insulating part with insulation defects along the surface is too high, which can easily cause insulation failure of the power equipment

Method used

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  • Preparation method of functional coating with surface insulation defect self-diagnosis and electric field intelligent regulation and control functions
  • Preparation method of functional coating with surface insulation defect self-diagnosis and electric field intelligent regulation and control functions
  • Preparation method of functional coating with surface insulation defect self-diagnosis and electric field intelligent regulation and control functions

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Experimental program
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Effect test

Embodiment 1

[0030] The purpose of the present invention is to provide a method for preparing a functional coating for self-diagnosis of creeping insulation defects and intelligent electric field regulation. The light intensity distribution in the area with surface insulation defects on the surface of the insulating member changes significantly, and the functional coating has the function of electric field regulation. The probability of insulation failure, the present invention provides a brand new method for the detection of creeping insulation defects of power insulation parts. The specific implementation steps are as follows:

[0031] 1) Add CT-5531 type epoxy resin, polyimide resin HY-651 curing agent, RF-2-α type alumina filler, DMP-30 type accelerator according to the mass ratio of 100:33:330:0.2 The epoxy vacuum pouring device is uniformly mixed and vacuumed. The temperature in the vacuum mixing chamber is set to 100 ° C, and the stirring time is set to 30 minutes. After mixing eve...

Embodiment 2

[0040] The silicone rubber insulating material is selected as the polymer matrix, which is sprayed into the insulating part, and other steps are the same as those in Example 1.

Embodiment 3

[0042] The polymer matrix is ​​made of polyethylene insulating material, which is deposited in the insulating member, and other steps are the same as those in Example 1.

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Abstract

The invention discloses a preparation method of a functional coating with surface insulation defect self-diagnosis and electric field intelligent regulation and control functions, which comprises the following steps of: selecting a zinc sulfide material with an electroluminescent characteristic and a semi-conductive characteristic, and adding the zinc sulfide material into a polymer matrix to prepare the functional coating with the surface insulation defect self-diagnosis and electric field intelligent regulation and control functions. The functional coating can be applied to power insulation parts such as power transmission line composite insulators, GIS / GIL insulators, pulse power device vacuum insulation and wire insulation layers. By changing the mass fraction of zinc sulfide and metal dopants in the functional coating and adjusting the surface conductivity of the functional coating, the electric power insulating part with the functional coating under the direct current working condition can effectively identify whether defect insulation exists on the surface of the insulating part according to the light intensity distribution on the surface of the insulating part; and meanwhile, the surface electric field distribution function of the insulating part is optimized.

Description

technical field [0001] The invention belongs to the field of high-voltage equipment insulation, and particularly relates to a method for preparing a functional coating with self-diagnosis of surface insulation defects and intelligent regulation of electric field. Background technique [0002] Power equipment insulators (transmission line composite insulators, GIS / GIL insulators, pulse power device vacuum insulation, wire insulation layers) play the role of electrical insulation and mechanical support in the operation of power equipment, and are the core components of power equipment. Influenced by factors such as production process limitations, operation and installation environment, etc., electrical insulation parts are prone to surface insulation defects. When the power equipment is in normal operation, the local electric field distortion on the surface of the insulating parts with surface insulation defects is too high, which can easily lead to the insulation failure of t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D5/22C09D5/24C09D163/00C09D183/04C09D123/06
CPCC09D5/22C09D5/24C09D163/00C09D183/04C09D123/06C08K2003/3036
Inventor 李进王禹淮杜伯学梁虎成
Owner TIANJIN UNIV
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