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Common tank type gas-insulated transmission line

A technology of gas insulation and transmission lines, which is applied in the installation of electrical components, busbars, cables, etc., can solve the problems of large space occupation, and achieve the effects of saving investment, reducing installation occupation space, and significant economic benefits

Inactive Publication Date: 2009-11-11
维依埃龙源电工研究院有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a common box-type gas insulated power transmission line to solve the problem of large floor space existing in the traditional box-type gas insulated power transmission line

Method used

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  • Common tank type gas-insulated transmission line
  • Common tank type gas-insulated transmission line
  • Common tank type gas-insulated transmission line

Examples

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Embodiment Construction

[0032] see figure 1 As shown, this common box type gas insulated power transmission line includes an outer shell and an inner conductor arranged in the outer shell, and the space between the outer shell and the inner conductor is filled with insulating gas. The inner conductor is a three-phase conductor 8 fixed in the housing, and the three-phase conductor includes three single-phase conductors for transmitting alternating current. see image 3 , the three-phase conductors 8 are uniformly distributed in the housing in an equilateral triangle through a number of supporting insulators 9 . Each of the supporting insulators 9 is an equilateral triangular frame, on which three through holes are provided for the single-phase conductors in the three-phase conductors 8 to pass through, and each of the supporting insulators 9 is provided with a number of holes for The insulating support feet connected to the inner wall of the housing 10. In this embodiment, three insulating support ...

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Abstract

The invention provides a common tank type gas-insulated transmission line, which comprises a shell and an internal conductor which is arranged inside the shell, wherein insulating gas is filled into a space between the shell and the internal conductor. The common tank type gas-insulated transmission line is characterized in that the internal conductor is a three-phase conductor which is fixedly arranged inside the shell. The invention arranges the three-phase conductor inside a common metal pipe, thereby greatly reducing the volume and the occupation space of engineering installation. No matter ground installation, underground tunnel or underground trench is adopted, the engineering investment can be effectively reduced and the economic benefit is more obvious. Simultaneously, the three-phase common tank GIL is to replace a split tank type product which adopts SF6 gas as a main insulating gas with a novel product which adopts dried and purified compressed air as the main insulating gas, belongs to a third generation of product with the advantages of safety and environmental protection, and has wide market prospect and obvious economic benefit and social benefit.

Description

technical field [0001] The invention relates to the field of high-voltage power transmission equipment, in particular to a box-common gas-insulated power transmission line. Background technique [0002] The gas-insulated transmission line is a pipeline-enclosed structure, and the installation method is relatively flexible, which can be divided into: direct burial laying, outdoor erection and tunnel installation. The purpose of the early application of gas-insulated transmission lines is to realize underground transmission lines with the same transmission capacity as overhead transmission lines to adapt to various harsh natural environments. [0003] At present, the 252-550kV gas insulated transmission lines produced by ABB, Siemens, the United States and Japan are all three-phase sub-box type, that is, the three-phase high-voltage busbars are installed in three metal shells respectively. Each metal shell is coaxial with the high-voltage busbar (inner conductor) inside. The ...

Claims

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Application Information

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IPC IPC(8): H02B13/045H02G5/00
Inventor 李鸿儒雷鸣叶德隆
Owner 维依埃龙源电工研究院有限公司
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