Tower head capable of preventing windage yaw

A technology to prevent wind deflection and tower head, which is applied in the direction of towers, building types, buildings, etc., can solve the problems of increasing the distance between the wire and the tower itself and the cross arm, and the wind deflection tripping of the transmission line, so as to reduce discharge and increase stability Effect

Inactive Publication Date: 2015-02-18
STATE GRID CORP OF CHINA +3
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  • Claims
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AI Technical Summary

Problems solved by technology

[0004] In order to solve the problem of tripping due to wind deflection of transmission lines, the present invention aims to design a windproof deflection tower head to increase the distance between the conductor of the transmission line and the tower itself and the cross arm under the action of wind deflection, and reduce the transmission line's tripping due to wind deflection gate probability

Method used

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  • Tower head capable of preventing windage yaw

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Effect test

Embodiment Construction

[0012] Such as figure 1 As shown: a windproof partial tower head is composed of a tower [1], a vertical pendant [2] and an oblique support [3]; the hanging point of the vertical pendant [2] is located at the insulator suspension of the original pole tower [1] ] and the vertical pendant [2] and the oblique support [3] form a triangle. The length of the vertical pendant [2] and the oblique support [3] can be adjusted according to different towers [1] types. Vertical pendant [2] and oblique support [3] and pole tower [1] are not a whole, but detachable.

[0013] The working principle of the present invention is: the suspension point of the insulator is changed from the original suspension point to the intersection point of the vertical pendant [2] and the diagonal support [3], which reduces the suspension point of the insulator, while the vertical pendant [2] and the diagonal support Part [3] is fixed on the tower and cannot be rotated, so that the insulator increases the dista...

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Abstract

The invention discloses a tower head capable of preventing windage yaw. The tower head capable of preventing the windage yaw comprises a tower pole (1), a vertical hanging piece (2) and an inclined strutting piece (3), wherein a hanging point of the vertical hanging piece (2) is positioned at an insulator hanging position of the original tower pole (1); the tower pole (1), the vertical hanging piece (2) and the inclined strutting piece (3) form a triangle; the lengths of the vertical hanging piece (2) and the inclined strutting piece (3) can be adjusted according to different types of the tower pole (1); the vertical hanging piece (2), the inclined strutting piece (3) and the tower pole (1) are independent, and are dismountable. With the adoption of the tower head, the insulator hanging point can be lowered, so that when the insulator deflects, the distance between the conducting wire and the tower cross arm is increased, the anti-wind capability of the line can be improved, and the windage yaw discharge of the line can be reduced.

Description

technical field [0001] The invention mainly relates to the field of wind deflection prevention of transmission lines in strong wind areas, in particular to a wind deflection tower head, which can be used to reduce wind deflection tripping of power 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 voltage. Due to the continuity...

Claims

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Application Information

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IPC IPC(8): E04H12/10
CPCE04H12/00E04H12/10
Inventor 张东董新胜周利兵庄文兵
Owner STATE GRID CORP OF CHINA
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