Extra-high voltage composite insulator

A composite insulator and ultra-high voltage technology, applied in the direction of supporting insulators, etc., can solve the problems of easy conduction and limited mechanical strength of ultra-high voltage pillar composite insulators, and achieve the effects of good mechanical strength, good shock resistance and enhanced mechanical strength.

Active Publication Date: 2014-08-13
YANCHENG POWER SUPPLY CO STATE GRID JIANGSU ELECTRIC POWER CO +4
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to solve the problem that the existing ultra-high voltage post composite insulators have limited mechanical strength and the inner wall is prone to conduction after moisture absorption and moisture

Method used

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  • Extra-high voltage composite insulator

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Experimental program
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Effect test

Embodiment 1

[0016] combine figure 1 , Embodiment 1 of the present invention is an ultra-high voltage composite insulator, including a mandrel, a supporting insulating rod, an upper flange, a lower flange and four composite insulator jackets, and the mandrel is a solid core drawn from epoxy glass fiber Rod, the upper flange and the lower flange are set on the mandrel, the length of each composite insulator jacket is 2-3m, and the four composite insulator jackets pass through the upper flange and the lower flange along the core The rods are axially installed in series on the periphery of the mandrel, the upper flange and the lower flange are set at both ends of each composite insulator jacket, and an annular column is left between the core rod and the inner wall of the composite insulator jacket. space, the annular columnar space is filled with insulating gas, and 4 to 12 supporting insulating rods are arranged in the annular columnar space along the axial direction of the mandrel. The mate...

Embodiment 2

[0018] combine figure 1 , Embodiment 2 of the present invention is an ultra-high voltage composite insulator, comprising a mandrel, a supporting insulating rod, an upper flange, a lower flange and four composite insulator jackets, and the mandrel is a solid core drawn from epoxy glass fiber Rod, the upper flange and the lower flange are set on the mandrel, the length of each composite insulator jacket is 2-3m, and the four composite insulator jackets pass through the upper flange and the lower flange along the core The rods are axially installed in series on the periphery of the mandrel, the upper flange and the lower flange are set at both ends of each composite insulator jacket, and an annular column is left between the core rod and the inner wall of the composite insulator jacket. space, the annular columnar space is filled with insulating gas, and 4 to 12 supporting insulating rods are arranged in the annular columnar space along the axial direction of the mandrel. The mat...

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Abstract

The invention discloses an extra-high voltage composite insulator comprising a mandrel, support insulating rods, upper flanges, lower flanges and four composite insulator jackets. The mandrel is a solid mandrel formed by extracting epoxy glass fibers. The upper flanges and the lower flanges sleeve the mandrel. The four composite insulator jackets are serially connected and installed on the periphery of the mandrel in the axial direction of the mandrel through the upper flanges and the lower flanges. Two ends of each composite insulator jacket are sleeved with the upper flanges and the lower flanges. An annular cylindrical space is formed between the mandrel and the inner wall of each composite insulator jacket. The annular cylindrical space is filled with an insulating gas. The support insulating rods are made from high-strength glass fibers. The support insulating rods pass through the upper flanges and the lower flanges and uniformly distributed in the annular cylindrical space. An umbrella skirt made from vulcanizing silicone rubber is arranged onto the whole outer wall of each composite insulator jacket through injection. The extra-high voltage composite insulator of the invention has advantages of high mechanical strength, good weather-resistant performance and convenient transportation and assembly compared with a traditional insulator.

Description

technical field [0001] The invention relates to an insulator, in particular to an ultra-high voltage composite insulator. Background technique [0002] The construction of AC and DC UHV power transmission and transformation projects has greatly promoted the improvement of the technical manufacturing level of the domestic power equipment manufacturing industry, and at the same time laid a solid foundation for the development of composite insulators. The manufacturing technology of UHV hollow, pillar insulators and large tonnage suspension insulators is one of the major key technical problems in UHV transmission projects. According to different insulating materials, insulators can be divided into porcelain insulators, glass insulators and composite insulators. Among them, compared with porcelain insulators and glass insulators, composite insulators are lighter in weight, have excellent anti-pollution performance and better mechanical strength. The high-voltage post composite...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01B17/14
Inventor 张怡
Owner YANCHENG POWER SUPPLY CO STATE GRID JIANGSU ELECTRIC POWER CO
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