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Adjustable power transmission line windage yaw preventing device

A transmission line, anti-wind deflection technology, applied in the direction of mechanical vibration attenuation devices, etc., can solve the problem of wind deflection tripping of transmission lines, and achieve the effect of easy on-site installation

Inactive Publication Date: 2014-12-10
STATE GRID CORP OF CHINA +3
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to solve the problem of wind deflection tripping of transmission lines, this invention aims to design a wind deflection insulator for transmission lines to reduce the wind deflection angle of the insulator caused by the wind deflection of the transmission line, improve the wind deflection ability of the transmission line, reduce Probability of Transmission Line Tripping Due to Wind Deviation

Method used

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  • Adjustable power transmission line windage yaw preventing device
  • Adjustable power transmission line windage yaw preventing device
  • Adjustable power transmission line windage yaw preventing device

Examples

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Embodiment Construction

[0021] Such as figure 1 Shown: The adjustable wind deflection device for transmission lines consists of a wind deflection insulator [2], a pole tower [1] and a line insulator [3] to form a triangle, and the wind deflection insulator [2] is fixed on the pole tower and cannot be rotated to prevent the wire from [ 4] Drive the line insulator [3] to deflect under the action of wind.

[0022] Such as figure 2 with image 3 Shown: The fixed plate of the adjustable transmission line anti-wind deflection device is composed of a fixing hardware [21] and a bracket [22]. There are four screw holes on the fixing hardware, and the hole diameter is 12mm, and M10 bolts can be installed. The hole spacing d3 and d4 are equal, and the spacing is 0.5cm wider than the width of the iron tower angle steel or steel plate at the installation position; the edge width d1 and d2 are equal, and the width is 1.5cm.

[0023] Such as Figure 4 with Figure 5 Shown: There are multiple holes at the conn...

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Abstract

The invention discloses an adjustable power transmission line windage yaw preventing device. The adjustable power transmission line windage yaw preventing device is formed into a triangle by a windage yaw preventing insulator [2], a tower [1] and a line insulator [3]; the windage yaw preventing insulator [2] is fixed on the tower without rotating so as to prevent a conductor [4] from driving the line insulator [3] to deflect under the action of wind. The windage yaw preventing insulator is composed of a U-shaped bolt [24], a support fitting [21], a support [22], a connecting rod [23] and a special insulator [25], wherein the support fitting [21] and the support [22] are connected by welding; an assembly is formed in such a manner that the support fitting [21] and the support [22] are fixed on the tower by use of the U-shaped bolt [24], one end of the connecting rod [23] is fixed on the support [22], while the other end of the connecting rod [23] is connected to the special insulator [25], and then the special insulator [25] is connected with the conductor [4].

Description

technical field [0001] The invention mainly relates to the field of wind deflection prevention for transmission lines in strong wind areas, in particular to an adjustable wind deflection device for transmission lines, which can be used to reduce wind deflection tripping of transmission lines. Background technique [0002] In recent years, there have been more than 300 wind-bias flashovers on lines exceeding 110kV owned by the State Grid Corporation of China. Among them, 31 wind-bias flashovers occurred on 500kV transmission lines under the jurisdiction of State Grid Construction Co., Ltd., involving Jiangsu, Zhejiang, Anhui , Hubei, Henan, Shandong, Shanxi, Beijing, Inner Mongolia, Heilongjiang, Liaoning and other provinces and municipalities. From the above data, the wind-bias flashover rate of high-voltage transmission lines does not seem to be high, but unlike lightning flashover and operation shock flashover, most of the wind-bias flashovers occur under the working volta...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02G7/14
Inventor 张东李耀中庄文兵董新胜
Owner STATE GRID CORP OF CHINA
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