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Gas insulation electric power line

A technology for gas insulation and power transmission lines, which is applied in the directions of organic gas insulators, insulated cables, insulated conductors, etc., can solve the problems of poor environmental protection and expensive insulation gas, and achieve the effect of improving environmental protection and solving high prices.

Inactive Publication Date: 2008-12-03
维依埃龙源电工研究院有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a gas insulated transmission line to solve the problems of expensive insulating gas mainly composed of SF6 and poor environmental protection in traditional gas insulated transmission lines

Method used

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Embodiment Construction

[0010] see figure 1 The structure of the gas-insulated transmission line is shown. The gas-insulated transmission line includes an outer shell 1 and an inner conductor 2 coaxial with the outer shell 1. The inner conductor 2 is fixed by a pot insulator 3 and supported by a support insulator 4. The space between the housing 1 and the inner conductor 2 is filled with insulating gas. The insulating gas of the gas-insulated transmission line of the present invention is dry and purified compressed air. The dry and purified compressed air is a grade 1 standard with the standard number GB / T13277-91 for general compressed air quality. That is, the dust particle size of dry and purified compressed air is less than or equal to 0.1 μm. The oil content of dry and purified compressed air is less than or equal to 0.01mg / m 3 . The moisture content of dry and purified compressed air is less than or equal to the dew point of -70 degrees Celsius.

[0011] see figure 2 The test curve of th...

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Abstract

The invention provides a gas insulation transmission line, which comprises a shell and an inner conductor coaxial with the shell. The space between the shell and the inner conductor is filled with an insulating gas which is compressed air after being dried and purified. The pressure of the compressed air is 1.5Mpa to 2.5Mpa, the dust granularity thereof is smaller than or equal to 0.1Mum, oil content thereof is smaller than or equal to 0.01mg / m<3>, and the moisture content thereof is smaller than or equal to a condensation point of -70 DEG C. By adopting the compressed air after being dried and purified to substitute the insulating gas mainly containing SF6 in the conventional gas insulation transmission line, the gas insulation transmission line of the invention can not only play the role of insulation of the insulating gas in the conventional gas insulation transmission line, and simultaneously can enhance the environmental protection of the gas insulation transmission line.

Description

technical field [0001] The invention relates to the field of high-voltage power transmission equipment, in particular to a gas-insulated transmission line. Background technique [0002] The gas insulated transmission line is a pipeline closed 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 different harsh natural environments. Such a gas insulated power line includes an outer casing and an inner conductor located within and coaxial with the outer casing. This inner conductor is held in place by pot insulators and supported below by support insulators. The space between the inner conductor and the housing is filled with insulating gas. At present, the insulating gas of gas in...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01B3/56H01B7/00
Inventor 李鸿儒雷鸣李培康
Owner 维依埃龙源电工研究院有限公司
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