Replacing device and replacing method of high altitude 500-kilovolt strain fourfold insulator chain

A technology of insulator strings and insulators, which is applied in the field of replacement devices for high-altitude 500kV strain-resistant quadruple insulator strings, and can solve problems such as difficulty in installing tools, hidden dangers of accidents, and losses

Active Publication Date: 2013-04-24
云南电网有限责任公司输电分公司
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  • Summary
  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The only option is to use power outage maintenance. Every maintenance will cause great losses to the normal transmission operation, and also cause many hidden dangers of accidents. This problem has to be solved.
[0004] High altitude 500kV line tension-resistant four-string structure size: 400×450, the center distance between the upper and lower strings is only 400mm, the diameter of the insulator disc is Φ=280mm, and the gap in the middle is 120mm, which causes great difficulties for the installation of tools.

Method used

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  • Replacing device and replacing method of high altitude 500-kilovolt strain fourfold insulator chain
  • Replacing device and replacing method of high altitude 500-kilovolt strain fourfold insulator chain
  • Replacing device and replacing method of high altitude 500-kilovolt strain fourfold insulator chain

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Embodiment Construction

[0036] see figure 1 , the present invention provides a high-altitude 500kV tension quadruple insulator string replacement device, which includes an upper string insulator replacement device and a lower string insulator replacement device respectively connected to the delta plate 4 .

[0037] see figure 2 as well as image 3 , the upper string insulator replacement device includes a straight line tightener 2, an insulating pull rod 1, a tension rear clamp 3, a tensile front clamp 6, and an upper string insulator bottle holder 7; an upper string insulator bottle holder 7 and an insulation pull rod 1 It is arranged in parallel between the post-stretch card 3 and the front card 6, and is fixedly connected with the back card 3 and the front card 6 respectively; In the fixing hole fixed with the triangular connecting plate 4 and the fixing bolts of the upper string of insulators;

[0038] The upper string insulator replacement device also includes the upper string insulator bott...

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Abstract

The invention relates to a replacing device and a replacing method of a high altitude 500-kilovolt strain fourfold insulator chain. The device comprises an upper chain insulator replacing device and a lower chain insulator replacing device, wherein the upper chain insulator replacing device and the lower chain insulator replacing device are respectively connected with connecting plates. The replacing device and the replacing method of the high altitude 500-kilovolt strain insulator four-chain is high in degree of safety and convenient to use.

Description

technical field [0001] The invention belongs to the technical field of live work on power grids and transmission lines, and relates to a device and method for live replacement of insulator strings, in particular to a replacement device and method for high-altitude 500kV tension-resistant quadruple insulator strings. Background technique [0002] The high-altitude 500kV line has a total length of 220.368km and an altitude of 928-2670.3m. It is located in a plateau mountainous area with complex terrain and harsh weather conditions. [0003] Since it was built and put into operation in 1993, live replacement of strain-resistant quadruple insulator strings has been a difficult problem to solve. Reluctantly, there is no choice but to use power outage maintenance. Every maintenance will cause great losses to the normal power transmission operation, and also cause many hidden dangers of accidents. This problem has to be solved. [0004] High altitude 500kV line tension four-string...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02G1/02
Inventor 龚明义邓华杨福民杨福奖梁佳麒孙逊董秀娟
Owner 云南电网有限责任公司输电分公司
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