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Insulator for high-voltage power transmission line and manufacturing method of insulator

A technology for high-voltage transmission lines and a manufacturing method, which is applied to circuits, insulators, electrical components, etc., can solve the problems of short glass insulator manufacturing process lines, affecting the safety of transmission lines, and high self-explosion rate, reducing porosity, ensuring mechanical strength, Strong binding effect

Active Publication Date: 2017-05-10
ZHENGZHOU ELECTRIC POWER COLLEGE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Existing insulators are usually made of glass or ceramics. Compared with disc-shaped suspension ceramic insulators, glass insulators have short manufacturing process lines and are convenient for mechanized mass production. ), affecting the safety of transmission lines

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] An insulator for high-voltage transmission lines, including an insulator body and two fixing pieces arranged at both ends of the insulator body, a number of large umbrellas and small umbrellas are distributed around the surface along the length direction of the insulator body, and the large umbrellas and small umbrellas are arranged at intervals cloth, the insulator body is fired from a base material, a filler and a pore-forming agent. According to the weight ratio, the base material is composed of 30 parts of kaolin, 8 parts of wood knot clay and 16 parts of quartz, and the filler is composed of 4 parts of fine kyanite powder with a fineness of no more than 45 microns, 5 parts of activated alumina fine powder with a fineness of no more than 5 microns, and 3 parts of modified nano-silica. The pore-forming agent consists of 7 parts with a fineness of no more than 30 microns of silicon carbide fine powder, 1 part of sodium bicarbonate and 2 parts of soda lime; the modified...

Embodiment 2

[0037] An insulator for high-voltage transmission lines, including an insulator body and two fixing pieces arranged at both ends of the insulator body, a number of large umbrellas and small umbrellas are distributed around the surface along the length direction of the insulator body, and the large umbrellas and small umbrellas are arranged at intervals cloth, the insulator body is fired from a base material, a filler and a pore-forming agent. According to the weight ratio, the base material is composed of 32 parts of kaolin, 10 parts of wood knot clay and 18 parts of quartz, and the filler consists of 5 parts of fine kyanite powder with a fineness of no more than 45 microns, 7 parts of activated alumina fine powder with a fineness of no more than 5 microns, and 4 parts of modified nano-silica. The pore-forming agent consists of 9 parts with a fineness of no more than 30 microns of silicon carbide fine powder, 2 parts of sodium bicarbonate and 3 parts of soda lime; the modified ...

Embodiment 3

[0048] An insulator for high-voltage transmission lines, including an insulator body and two fixing pieces arranged at both ends of the insulator body, a number of large umbrellas and small umbrellas are distributed around the surface along the length direction of the insulator body, and the large umbrellas and small umbrellas are arranged at intervals cloth, the insulator body is fired from a base material, a filler and a pore-forming agent. According to the weight ratio, the base material is composed of 31 parts of kaolin, 9 parts of wood knot clay and 17 parts of quartz, and the filler consists of 4.5 parts of fine kyanite powder with a fineness of no more than 45 microns, 6 parts of activated alumina micropowder with a fineness of no more than 5 microns, and 3.5 parts of modified nano-silica. The pore-forming agent consists of 8 parts with a fineness of no more than The silicon carbide fine powder of 30 microns, the sodium bicarbonate of 1.5 parts and the soda lime of 2.5 p...

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Abstract

The invention provides an insulator for a high-voltage power transmission line and a manufacturing method of the insulator. The insulator comprises an insulator body and two fixed parts, wherein the two fixed parts are arranged at two ends of the insulator body; multiple large umbrellas and small umbrellas are distributed around the surface of the insulator body along the length direction of the insulator body, and the large umbrellas and the small umbrellas are arranged at intervals; the insulator body is formed by firing a base material, a filling material and a pore-forming agent; the base material comprises kaoline, knar clay and quartz; the filling material comprises kyanite powder, activated aluminum oxide micro-powder and modified nanosilicon dioxide; and the pore-forming agent comprises silicon carbide powder, sodium bicarbonate and soda lime. The fired insulator body can be soaked in an inorganic or organic insulating material, so that air holes in the insulator body are filled with the insulating material and the electric breakdown resistance of the insulator body is further strengthened.

Description

technical field [0001] The invention relates to high-voltage power transmission in a power system, in particular to an insulator for a high-voltage power transmission line and a manufacturing method thereof. Background technique [0002] Insulators are electrical components that are insulating and mechanically fixed, and can play an important role in overhead transmission lines. In the early years, insulators were mostly used on utility poles, and gradually developed in the high-voltage wire connection tower, where many disc-shaped insulators were hung at one end. It was called an insulator to increase the creepage distance. Insulators have the largest number in the transmission line and are the weakest link. The cost is low, about 2% of the line cost, and it is one of the most important links in the transmission line. [0003] The high-voltage insulators used in high-voltage transmission lines have the following requirements: they are divided into electrical load and elect...

Claims

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Application Information

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IPC IPC(8): H01B17/40H01B19/00
CPCH01B17/40H01B19/00
Inventor 张丽娟崔均亮王丁
Owner ZHENGZHOU ELECTRIC POWER COLLEGE
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