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+/-800 kV extra-high voltage direct current line six-connection three-hanging-point strain string operation platform

A UHV DC and operating platform technology, applied in the direction of overhead lines/cable equipment, etc., can solve problems such as difficult to carry out porcelain bottle replacement work

Inactive Publication Date: 2018-08-28
STATE GRID CORP OF CHINA +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Therefore, it is difficult to carry out the replacement work of porcelain bottles due to the space, so it is necessary to develop a working platform for six-link three-point hanging strings

Method used

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  • +/-800 kV extra-high voltage direct current line six-connection three-hanging-point strain string operation platform
  • +/-800 kV extra-high voltage direct current line six-connection three-hanging-point strain string operation platform
  • +/-800 kV extra-high voltage direct current line six-connection three-hanging-point strain string operation platform

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Experimental program
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Embodiment Construction

[0026] Such as Figure 1-4 As shown, the present invention is applied to the operation platform used for replacing porcelain bottles by six-connected three-hanging-point strain strings of ±800 kV UHV DC lines, and different platforms are selected according to the position of the porcelain bottles to be replaced.

[0027] The operation platform is an upper string operation platform or a lower string operation platform; the position of the work platform is reasonably installed according to the position of the porcelain bottle to be replaced, and the upper string operation platform is used for the replacement of the porcelain bottles of the upper string of porcelain bottles. When working on a-2, the lower string operation platform is used for replacing the porcelain bottles of the lower string of porcelain bottles. Due to the space position, the operator stands on the lower string pedal b-2, which is lower than the height of the string of porcelain bottles, which is convenient for...

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Abstract

The invention relates to a + / -800 kV extra-high voltage direct current line six-connection three-hanging-point strain string operation platform, the operation platform is an upper string operation platform or a lower string operation platform; the upper string operation platform comprises two upper string main rods and an upper string sitting plate arranged between the two upper string main rods,and the upper string main rods are connected with a porcelain insulator steel cap of a strain string; the lower string operation platform comprises two lower string main rods and a lower string pedalplate arranged below and between the two lower string main rods, and the longitudinal section of the lower string pedal plate is in the shape of trapezoid with a wide upper part and a narrow lower part, and the lower string main rods are connected with the porcelain insulator steel cap of the strain string. By using the operation platform, workers can conveniently carry out the replacement work ofthe porcelain bottles.

Description

technical field [0001] The invention belongs to the technical field of live operation of power grids and transmission lines, and in particular relates to a six-connection, three-hanging-point tension string operating platform for ±800 kV UHV DC lines. Background technique [0002] As an important part of the UHV backbone grid of the State Grid, the "Jalut-Qingzhou" ±800 kV UHV DC transmission project is the first UHV power transmission channel in eastern Inner Mongolia. [0003] Large-capacity power transmission and conversion of ±800 kV UHV transmission lines. From the moment it is connected to the power grid, it will have a decisive impact on the safety of the power grid. Once a power accident occurs, it will cause great fluctuations, oscillations and even disconnection of the power grid. Therefore, how to improve the reliability of power supply, strengthen the operation and maintenance technology, adopt the live working technology, realize the non-stop inspection and mai...

Claims

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Application Information

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IPC IPC(8): H02G1/02
Inventor 赵志刚刘海峰康淑丰张明旭刘朝辉王军刘洪吉李俭段建军苏永杰依阳马昊李晓令耿三平梁利辉吴国强肖东明贺远
Owner STATE GRID CORP OF CHINA