An anti-halation and consumption-reducing coating for ultra-high voltage lines

An ultra-high voltage, anti-pollution flashover coating technology, used in conductive coatings, coatings and other directions

Inactive Publication Date: 2016-08-10
NORTH CHINA ELECTRIC POWER UNIV (BAODING) +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the causes of corona, such as the voltage level and the geometric shape of the transmission line, cannot be adjusted at will, so they can only passively bear the energy loss caused by corona

Method used

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  • An anti-halation and consumption-reducing coating for ultra-high voltage lines
  • An anti-halation and consumption-reducing coating for ultra-high voltage lines

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Embodiment 1, take raw material by proportioning: 20 kg of hydroxyl-terminated polydimethylsiloxane, 1 kg of silicone oil; 4.5 kg of fumed silica, 2 kg of mica powder; 3.5 kg of aluminum hydroxide, 2 kg of titanium dioxide, Methyltriacetoxysilane 1 kg, di-tert-butyldiacetoxysilane 1 kg, organotin 0.1 kg, xylene 25 kg, carbon black 22 kg.

Embodiment 2

[0025] Embodiment 2, raw materials were weighed according to the proportion: 28 kg of hydroxyl-terminated polydimethylsiloxane, 2 kg of silicone oil; 7 kg of fumed white carbon black, 2.8 kg of mica powder; 4 kg of aluminum hydroxide, and 3 kg of titanium dioxide , 3 kg of methyltriacetoxysilane, 2 kg of di-tert-butyldiacetoxysilane, 0.4 kg of organotin, 30 kg of xylene, and 30 kg of carbon black.

Embodiment 3

[0026] Example 3, raw materials were weighed according to the proportion: 22 kg of hydroxyl-terminated polydimethylsiloxane, 1.5 kg of silicone oil; 6.5 kg of fumed silica, 4 kg of mica powder; 3.1 kg of aluminum hydroxide, and 3 kg of titanium dioxide , 2 kg of methyltriacetoxysilane, 1.2 kg of di-tert-butyldiacetoxysilane, 0.3 kg of organotin, 35 kg of xylene, and 28 kg of carbon black.

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Abstract

The invention discloses an anticorona and consumption-reducing coating for ultra (extra)-high-voltage lines, which is prepared from the following raw materials in parts by mass: 21-32 parts of an anti-contamination flashover coating, 6-11 parts of a reinforcing agent, 5-7 parts of a flame retardant, 1-3 parts of a crosslinking agent, 1-2 parts of an additive, 0.1-0.5 part of a catalyst, 25-35 parts of a solvent, and 20-30 parts of an electric conduction agent. When the coating disclosed by the invention is used, the coating is selectively coated on brush discharge points on an electric transmission line, and can carry out effective suppression on the brush discharge of guide lines. Tests show that after the coating is coated, the corona power loss of ultra (extra)-high-voltage lines is significantly lowered, and the critical coronal voltage is increased by near 20 kV (increased from 95 kV to 115 kV), therefore, the coating disclosed by the invention has a good anticorona effect. Compared with traditional anticorona techniques, the coating disclosed by the invention has the advantages of low cost, easiness for production, easiness for application, simple maintenance, strong repair power, strong environment adaptability, convenience for transportation and storage, and the like.

Description

technical field [0001] The invention relates to a coating, in particular to an anti-halation and consumption-reducing coating for ultra-high voltage lines used for power transmission lines and a preparation method thereof. Background technique [0002] In an extremely uneven electric field, when the maximum field strength is higher than the air breakdown field strength, it will cause air ionization, which is called corona discharge. The free strength of air molecules is generally 20-30kV / cm. When the electric field strength on the surface of the transmission line wire exceeds this value, you will hear a "sizzling" discharge sound, smell the smell of ozone, and you can also see the emission around the electrodes at night. The blue-violet fluorescence, which is the corona discharge of the transmission line. The charged ions produced by corona discharge move back and forth around the wire under the action of alternating voltage, accompanied by air ionization and light and radi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D183/06C09D183/04C09D5/24C09D7/12
Inventor 刘云鹏许自强代杭娟李忍朱雷顼佳宇
Owner NORTH CHINA ELECTRIC POWER UNIV (BAODING)
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