CN204186125U - A kind of wind-deviation tower head - Google Patents
A kind of wind-deviation tower head Download PDFInfo
- Publication number
- CN204186125U CN204186125U CN201420612765.6U CN201420612765U CN204186125U CN 204186125 U CN204186125 U CN 204186125U CN 201420612765 U CN201420612765 U CN 201420612765U CN 204186125 U CN204186125 U CN 204186125U
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- suspension member
- vertical suspension
- tower
- wind
- bearing diagonal
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- 239000000725 suspension Substances 0.000 claims abstract description 26
- 239000012212 insulator Substances 0.000 claims abstract description 16
- 230000007423 decrease Effects 0.000 abstract description 3
- 230000005540 biological transmission Effects 0.000 description 15
- 230000005611 electricity Effects 0.000 description 9
- 208000025274 Lightning injury Diseases 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 230000003449 preventive effect Effects 0.000 description 1
- 239000011800 void material Substances 0.000 description 1
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Abstract
The utility model discloses a kind of wind-deviation tower head, and a kind of wind-deviation tower head is made up of with vertical suspension member [2] and bearing diagonal part [3] shaft tower [1]; Vertical suspension member [2] hanging point is positioned at the insulator hanging position of original shaft tower [1], and shaft tower [1] forms triangle with vertical suspension member [2] and bearing diagonal part [3].The length of vertical suspension member [2] and bearing diagonal part [3] can regulate according to row during different shaft tower [1] types.Vertical suspension member [2] and bearing diagonal part [3] and shaft tower [1] are not an entirety, but dismountable.Adopt this kind of tower head to reduce insulator hitch point, such insulator adds the distance of wire and cross arm of tower when deflecting, improve the wind loading rating of circuit, decreases the generation of circuit windage yaw electric discharge.
Description
Technical field
The utility model relates generally to the inclined field of strong wind area power transmission line wind, refers in particular to a kind of wind-deviation tower head, may be used for reducing power transmission circuit caused by windage tripping operation.
Background technology
In recent years, there is windage yaw discharge more than 300 altogether in the circuit more than 110kV belonging to State Grid Corporation of China, there are 31 windage yaw arcing faults in the 500kV transmission line of electricity that wherein National Electric Wire Netting Construction Ltd,Co. is administrative, relates to the provinces, cities and regions such as Jiangsu, Zhejiang, Anhui, Hubei, Henan, Shandong, Shanxi, Beijing, the Inner Mongol, Heilungkiang, Liaoning altogether.From above data, the windage yaw discharge rate of ultra-high-tension power transmission line seems not high, but with lightning stroke flashover and switching impulse flashover unlike, most windage yaw discharge occurs under operating voltage " due to the continuity of wind; generally can not successful reclosing after windage yaw discharge tripping operation; thus result in the stoppage in transit of circuit " operating experience shows, current windage yaw discharge rate index oneself can not meet the requirement that line security runs.
Windage yaw discharge accident is the major safety risks that electrical network normally runs, and circuit is because of reclosing not easily success after windage yaw discharge tripping operation, have a strong impact on the safe and stable operation of power system, thus " angle of wind deflection of insulator string and wire jumper is excessive is the immediate cause producing windage yaw discharge accident to cause great economic loss, therefore the windage yaw of high-voltage transmission line insulator string and wire jumper is subject to the extensive concern of research and engineering field, minimum air void between further investigation transmission circuit insulator string and the angle of wind deflection of wire jumper and wire to shaft tower, and the inclined flashover performance of circuit wind resistance is assessed, important practical meaning in engineering and technical economic benefit is had to the safe operation and overhead line structures design level that improve electrical network.And for working line, carrying out windage yaw " V " falsification, to make difficulty large.In order to reduce the impact of windage yaw on transmission line of electricity, particularly operating in the circuit of strong wind area, being necessary a kind of simple wind deflection preventive of design, with the inclined ability of the wind resistance improving transmission line of electricity, reducing the number of times that transmission line of electricity has a power failure because of windage yaw.
Summary of the invention
In order to solve the problem of power transmission circuit caused by windage tripping operation, the utility model is intended to design a kind of wind-deviation tower head, and to increase the distance of transmission line of electricity at windage yaw effect lower wire and shaft tower itself and cross-arm, minimizing transmission line of electricity is because of the probability of windage yaw bounce flash lock.
The technical solution adopted in the utility model is:
A kind of wind-deviation tower head, is made up of with vertical suspension member and bearing diagonal part shaft tower; Vertical suspension member hanging point is positioned at the insulator hanging position of original shaft tower, and shaft tower forms triangle with vertical suspension member and bearing diagonal part.
The utility model is adopted to have following advantage:
1, insulator is suspended on the suspension height that vertical suspension member place reduces insulator, and the distance of such transmission line of electricity conductor spacing shaft tower when windage yaw increases to some extent, decreases because electric clearance is apart from the too small electric discharge caused.
2, vertical suspension member and bearing diagonal part is adopted to engage the stability adding this tower head at suspension insulator place.
In sum: distance when a kind of wind-deviation tower head can increase circuit windage yaw between wire and shaft tower, improve the wind-deviation ability of transmission line of electricity, reduce the probability that transmission line of electricity trips because of windage yaw.
Accompanying drawing explanation
A kind of wind-deviation tower head of Fig. 1 overall schematic.
Detailed description of the invention
As shown in Figure 1: a kind of wind-deviation tower head is made up of with vertical suspension member [2] and bearing diagonal part [3] shaft tower [1]; Vertical suspension member [2] hanging point is positioned at the insulator hanging position of original shaft tower [1], and shaft tower [1] forms triangle with vertical suspension member [2] and bearing diagonal part [3].The length of vertical suspension member [2] and bearing diagonal part [3] can regulate according to row during different shaft tower [1] types.Vertical suspension member [2] and bearing diagonal part [3] and shaft tower [1] are not an entirety, but dismountable.
Operating principle of the present utility model is: the crosspoint hitch point of insulator being changed to vertical suspension member [2] and bearing diagonal part [3] by original hitch point, reduce insulator hitch point, and vertical suspension member [2] and bearing diagonal part [3] are fixed on shaft tower not rotatable, such insulator adds the distance of wire and cross arm of tower when deflecting, improve the wind loading rating of circuit, decrease the generation of windage yaw electric discharge.
Claims (3)
1. a wind-deviation tower head, is made up of with vertical suspension member [2] and bearing diagonal part [3] shaft tower [1]; It is characterized in that: vertical suspension member [2] hanging point is positioned at the insulator hanging position of original shaft tower [1], shaft tower [1] forms triangle with vertical suspension member [2] and bearing diagonal part [3], vertical suspension member [2] and bearing diagonal part [3] are fixed on shaft tower [1] rotatable simultaneously, and the hitch point of insulator is the crosspoint of vertical suspension member [2] and bearing diagonal part [3].
2. a kind of wind-deviation tower head according to claim [1], is characterized in that: the length of vertical suspension member [2] and bearing diagonal part [3] can regulate according to different shaft tower [1] types.
3. a kind of wind-deviation tower head according to claim [1], is characterized in that: vertical suspension member [2] and bearing diagonal part [3] and shaft tower [1] are not an entirety, but dismountable.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420612765.6U CN204186125U (en) | 2014-10-22 | 2014-10-22 | A kind of wind-deviation tower head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420612765.6U CN204186125U (en) | 2014-10-22 | 2014-10-22 | A kind of wind-deviation tower head |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204186125U true CN204186125U (en) | 2015-03-04 |
Family
ID=52618136
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420612765.6U Active CN204186125U (en) | 2014-10-22 | 2014-10-22 | A kind of wind-deviation tower head |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204186125U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104358465A (en) * | 2014-10-22 | 2015-02-18 | 国家电网公司 | Tower head capable of preventing windage yaw |
-
2014
- 2014-10-22 CN CN201420612765.6U patent/CN204186125U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104358465A (en) * | 2014-10-22 | 2015-02-18 | 国家电网公司 | Tower head capable of preventing windage yaw |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |