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Composite cross arm and composite pole tower

A composite pole and cross-arm technology, which is applied to towers, electrical components, insulators, etc., can solve problems such as the unsatisfactory effect of the uniform electric field of the common voltage equalizing ring and the complex structure of the voltage equalizing ring configuration scheme

Inactive Publication Date: 2017-06-27
STATE GRID XINJIANG ELECTRIC POWER CO ECONOMIC TECH RES INST +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the structure of the grading ring configuration scheme is complicated, and the effect of sharing the uniform electric field of the grading ring is not ideal.

Method used

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  • Composite cross arm and composite pole tower
  • Composite cross arm and composite pole tower
  • Composite cross arm and composite pole tower

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Such as figure 1 As shown, the composite cross-arm in this embodiment includes a row of cross-arm insulators 100 , two rows of horizontal cable-stayed insulators 200 , 300 and a row of upper cable-stayed insulators 400 . The cross-arm insulator 100 and the two rows of horizontal cable-stayed insulators 200 and 300 are located in the same horizontal plane, and the upper cable-stayed insulator 400 is located directly above the cross-arm insulator 100 .

[0031] The cross-arm insulators 100 are arranged in a straight line, one end is connected to the tower body 500 of the composite pole tower 1000 , and the other end is the terminal 600 . The two rows of horizontal cable-stayed insulators 200, 300 are in the shape of a line and are respectively located on both sides of the cross-arm insulator 100, and form a V shape relative to each other. The top ends are respectively connected to the ends 600 of the cross-arm insulators 100 , and one end of the V-shaped opening formed b...

Embodiment 2

[0040] Such as Image 6 As shown, this embodiment takes the horizontal cable-stayed insulator 200 as an example to describe the connection device 50 between the horizontal cable-stayed insulator 200 and the auxiliary grading ring 20 . For the cross-arm insulator 100 , the horizontal cable-stayed insulator 300 and the upward cable-stayed insulator 400 , the connection device 50 is applicable.

[0041] Such as Image 6 , Figure 7 As shown, the connecting device 50 includes a connecting piece 51 and a bracket 52, two connecting pieces 51 are evenly distributed on the same side of the auxiliary equalizing ring 20, the connecting piece 51 is a plate-shaped piece, and one end is fixed to the auxiliary A through hole 511 is defined on the pressure equalizing ring 20 and at the other end away from the auxiliary pressure equalizing ring 20 . There are two brackets 52, which are used in conjunction with the connector 51. One end of the bracket 52 is provided with a bracket through h...

Embodiment 3

[0045] Such as Figure 8 As shown, this embodiment takes the cross-arm insulator 100 as an example to describe the connection device 60 between the cross-arm insulator 100 and the main grading ring 10 . The connection device 60 is applicable to the two rows of horizontal cable-stayed insulators 200 , 300 and the upper cable-stayed insulator 400 .

[0046] Such as Figure 8 , Figure 9 As shown, the connecting device 60 includes a connecting piece 61 and a bracket 62. There are four connecting pieces 61 and they are evenly distributed on the same side of the main pressure equalizing ring 10. The connecting piece 61 includes a supporting part 611 and a connecting part 612. The supporting part 611 is perpendicular to The outer surface of the main pressure equalizing ring 10 is also perpendicular to the connecting portion 612, and the connecting portion 612 points to the inner side surrounded by the main pressure equalizing ring 10, and the end of the connecting portion 612 away...

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Abstract

The invention discloses a composite cross arm, which comprises a cross arm insulator, two rows of horizontal cable-stayed insulators and one row of upper cable-stayed insulators. The two rows of horizontal cable-stayed insulators are on the same level as the cross-arm insulators and are located on both sides respectively. The two rows of horizontal cable-stayed insulators are V-shaped relative to each other, and one end of the V-shaped opening is connected to the composite pole tower. One end of the V-shaped apex is connected to the end of the cross-arm insulator away from the tower body. One end of the upper cable-stayed insulator is connected to the tower body, and the other end is connected to the end of the cross-arm insulator away from the tower body. The end of the cross-arm insulator away from the tower body is equipped with a main voltage equalizing ring, the end of the V-shaped apex of the two horizontal cable-stayed insulators is respectively equipped with two auxiliary voltage equalizing rings, and the end of the upper cable-stayed insulator away from the tower body is equipped with an auxiliary voltage equalizing ring. Equalizing ring. Each voltage equalizing ring is arranged at the end away from the tower body, and is respectively arranged on the cross-arm insulator, the two rows of horizontal cable-stayed insulators and the upper cable-stayed insulator, which can effectively even out the electric field.

Description

technical field [0001] The invention relates to the field of power transmission insulation equipment, in particular to a composite cross arm and a composite pole tower. Background technique [0002] At present, in my country's 220kV transmission lines, iron tower structures are mostly used. However, traditional iron towers have the disadvantages of consuming mineral resources, polluting the ecological environment, heavy quality, and easy to rust. Due to its good hydrophobicity, anti-fouling flashover, light weight, and high strength, composite materials are used to replace the crossarm and part of the tower body of the transmission tower, and are used to develop a new 220kV transmission line composite tower. Since the structure of the 220kV composite pole tower is different from the existing all-steel frame tower, it is necessary to study its potential and electric field distribution and design the configuration scheme of the equalizing ring, so as to meet the field strength...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E04H12/24H01B17/42
CPCE04H12/24H01B17/42
Inventor 车勇李亚潘晓冬彭生江周楠康建国褚忠凯马斌郁杰颜启昕
Owner STATE GRID XINJIANG ELECTRIC POWER CO ECONOMIC TECH RES INST
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