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Extra-high voltage suspension composite rod insulator

A composite insulator and shape-suspension technology, which is applied in the direction of suspension/strain insulators, insulators, electrical components, etc., can solve problems such as too many connection nodes of porcelain glass insulators, inability to adapt to UHV transmission lines, damage to line use and operating life, etc. , to achieve the effect of enhanced insulation and mechanical properties, not easy to crack, and improved service life

Inactive Publication Date: 2016-04-27
STATE GRID SHANDONG ELECTRIC POWER +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Existing insulators have problems such as extremely uneven electric field distribution and too many connection nodes of porcelain glass insulators, which cannot adapt to extreme operating environments such as high humidity and high temperature of UHV transmission lines, and will cause various problems due to changes in environmental and electrical load conditions. Electromechanical stress failure, compromising the useful and operational life of the entire line

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0012] An ultra-high voltage rod-shaped suspension composite insulator, which is prepared according to the following method:

[0013] 1) Take 100 parts of clay, 80 parts of blast furnace slag, 30 parts of No. 42.5 Portland cement, 10 parts of feldspar powder, 5 parts of silicon carbide, 3 parts of talc powder, 2 parts of straw powder, 1 part of glass fiber, water 100 parts; the particle size of clay, blast furnace slag, feldspar powder, silicon carbide, talcum powder, straw powder, and glass fiber should be controlled above 100 mesh.

[0014] 2) Mix and stir the above raw materials evenly, put them into the mold, and shape the blank into the desired shape under the action of external force through plastic molding method; apply a uniform glaze layer on the surface of the blank; put the glazed The blank is sent to a kiln at 1200°C for sintering for 20 hours to obtain the finished product. The hardness of the product of the present invention is greater than 5.7GPa, the bending s...

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PUM

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Abstract

The invention belongs to the field of power materials, relates to an extra-high voltage suspension composite rod insulator. The extra-high voltage suspension composite rod insulator comprises the following raw materials in parts by weight: 100 parts of clay, 80 parts of blast furnace slag, 30 parts of No. 42.5 portland cement, 10 parts of feldspar powder, 3 parts of talcum powder, 2 parts of straw powder, 1 part of a glass fiber and 100 parts of water. The extra-high voltage suspension composite rod insulator is excellent in hardness and bending strength and good in stability performance.

Description

technical field [0001] The invention belongs to the field of power materials and relates to an ultra-high voltage rod-shaped suspension composite insulator. Background technique [0002] The research on UHV AC transmission technology began in the second half of the 1960s. At that time, the power industry in western industrial countries was in a period of rapid growth. The United States, the former Soviet Union, Italy, Canada, Germany, Japan, Sweden and other countries all formulated their own UHV the plan of. The former Soviet Union began construction of 1150KV power transmission projects in the late 1970s, and completed the Ekibastuz-Kokchetaf-Kustanite high-voltage line in 1985. Japan began research on UHV power transmission in 1973, and has now built a 1000kV UHV power transmission line in the outer ring of Tokyo with a total length of 426 kilometers. However, my country's UHV AC transmission technology is still in its infancy. At present, my country's per capita power...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01B17/02H01B17/42
Inventor 杨朝华张连瑞周华李克寅范江洋张建鹏
Owner STATE GRID SHANDONG ELECTRIC POWER
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