CN202090653U - AC ultrahigh voltage large span straight line tower - Google Patents
AC ultrahigh voltage large span straight line tower Download PDFInfo
- Publication number
- CN202090653U CN202090653U CN2010206904079U CN201020690407U CN202090653U CN 202090653 U CN202090653 U CN 202090653U CN 2010206904079 U CN2010206904079 U CN 2010206904079U CN 201020690407 U CN201020690407 U CN 201020690407U CN 202090653 U CN202090653 U CN 202090653U
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- tower
- arm
- phase conductor
- phase
- loop
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- 230000005540 biological transmission Effects 0.000 claims abstract description 19
- 239000004020 conductor Substances 0.000 claims description 63
- 239000012212 insulator Substances 0.000 claims description 13
- 230000004888 barrier function Effects 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 3
- 230000005611 electricity Effects 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 229910052742 iron Inorganic materials 0.000 description 2
- 241000883966 Astrophytum capricorne Species 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
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Abstract
The utility model discloses an AC (alternating current) ultrahigh voltage large span straight line tower, which comprises an upper phase lead cross-arm, a lower phase lead cross-arm and a tower body; double loop AC three-phase power transmission leads are suspended on the straight line tower; the upper phase lead cross-arm is disposed on the tower body; the upper phase leads in the two loops of the double loop are respectively suspended on both sides of the tower body symmetrically; the lower phase lead cross-arm is disposed on the tower while under the upper phase lead cross-arm; the lower two phase leads in one of the double loop and the lower two phase leads in the other loop are respectively suspended on both sides of the tower body symmetrically; the centers of the upper phase lead an the lower two phase leads in each loop are arranged in a triangle. The straight line tower of the utility model is mainly used for spanning large distance barrier, such as a river; can meet the requirements of 1000kV ultrahigh voltage line double loop large span electric gap and lead to distance, lightning protection and electromagnetic environment.
Description
Technical field
The utility model relates to a kind of transmission facility, particularly relates to the big leap tangent tower of a kind of AC extra high voltage.
Background technology
The developable hydroelectric resources of China nearly 2/3 is in western part, coal resources 2/3 in Shanxi, Shaanxi and the Inner Mongol, but the power load of China 2/3 but is distributed in the developed area of the coastal and Beijing-Guangzhou Railway in east to the east of along the line.Like this, just need be delivered to the big area, the central and east of electricity needs to the electric weight of energy base generating.
In order to reduce transmission losses, improve the transmission of electricity quality, China begins to develop the UHV transmission technology at present.
Ultra-high voltage AC transmission is meant the ac transmission engineering and the correlation technique of 1000kV and above electric pressure.Characteristics such as the UHV transmission technology has at a distance, big capacity, low-loss and economy.Though the UHV transmission technology has above advantage,, iron tower of power transmission line there is very high requirement because the electric pressure of extra-high voltage is very high.
In addition, high-voltage transmission line towers is used for supporting transmission pressure and ground wire at aerial power transmission line, is also referred to as the aerial power transmission line iron tower.The big tangent tower of crossing over is the straight line tower that transmission line of electricity uses when crossing over river, river, lake, sea.Its height and overall dimensions are relevant with the river width of being crossed over.Its size is often much bigger than the tangent tower in the general circuit.
In the big leap tangent tower of existing AC extra high voltage structure, though have the general super-pressure straight line crossover tower and the single loop straight line crossover tower that adopt lead triangle arrangement mode, the big leap common-tower double-return line conductor triangle arrangement tangent tower that does not still have the 1000kV extra high voltage line to use.
Therefore, design is applied to the big leap common-tower double-return line conductor triangle arrangement tangent tower of ultrahigh voltage alternating current transmission lines, is the technical problem that those skilled in the art are badly in need of solving.
Summary of the invention
In order to solve above-mentioned the problems of the prior art, a purpose of the present utility model provides the big leap tangent tower of a kind of AC extra high voltage, can satisfy the requirement of 1000kV extra high voltage line common-tower double-return road big leap tangent tower electric clearance.
An aspect of the present utility model provides a kind of AC extra high voltage big leap tangent tower, comprises phase conductor cross-arm, following phase conductor cross-arm and body of the tower, it is characterized in that:
Be hung with two circuit interchange three-phase power transmission lead on the described tangent tower;
The described phase conductor cross-arm of going up is arranged on the described body of the tower, the both sides of described body of the tower hang respectively with symmetrical manner a loop in the double loop on phase conductor and another loop on phase conductor;
Described phase conductor cross-arm down is arranged on the described body of the tower of described upward phase conductor cross-arm bottom, hangs following two phase conductors in a loop in the double loop and following two phase conductors in another loop in the both sides of described body of the tower respectively with symmetrical manner;
The described upward phase conductor and the described center of two phase conductors down in each loop are triangularly arranged.
Preferably, also hang ground wire on the phase conductor cross-arm on described.
Perhaps, the two ends of phase conductor cross-arm are provided with the ground line bracket that is used to hang ground wire on described.
Perhaps, described tangent tower also comprises the ground line bracket, and this ground line bracket is arranged on the described body of the tower on described upward phase conductor cross-arm top.
Preferably, describedly go up the form that phase conductor and described two phase conductors down combine by V-type insulator string, I type insulator string or V-type insulator string and I type insulator string and be suspended in described going up on phase conductor cross-arm and the described phase conductor cross-arm down.
The big leap tangent tower of AC extra high voltage of the present utility model is mainly used in big span obstructions such as crossing over the river, can satisfy the requirement of the big leap electric clearance in 1000kV extra high voltage line double loop, lead distance to the ground, lightning protection and electromagnetic environment.
Description of drawings
Fig. 1 is the schematic diagram of one of tower head pattern example of the big leap tangent tower of AC extra high voltage of the present utility model.
Fig. 2 is two a schematic diagram of the tower head pattern example of the big leap tangent tower of AC extra high voltage of the present utility model.
Fig. 3 is three a schematic diagram of the tower head pattern example of the big leap tangent tower of AC extra high voltage of the present utility model.
Fig. 4 is four a schematic diagram of the tower head pattern example of the big leap tangent tower of AC extra high voltage of the present utility model.
The specific embodiment
Followingly describe various exemplary embodiment of the present utility model in detail with reference to accompanying drawing.In each figure, represent similar key element with identical Reference numeral, and omit repeat specification it.
Fig. 1 is the schematic diagram of a kind of tower head pattern of the big leap tangent tower of AC extra high voltage of the present utility model.
Tangent tower shown in Figure 1 comprises phase conductor cross-arm 1, following phase conductor cross-arm 2 and body of the tower 3, has hung two circuit interchange three-phase conducting wire.
Last phase conductor cross-arm 1 is arranged on the body of the tower 3, the body of the tower both sides hung with symmetrical manner a loop on phase conductor 4 and another loop on phase conductor 4 '.
The body of the tower 3 of last phase conductor cross-arm 1 bottom is provided with down phase conductor cross-arm 2, in the body of the tower both sides with symmetrical manner hung following two phase conductors 5,5 in a loop and following two phase conductors 5 in another loop ', 5 '.
(among Fig. 1 shown in the circle) is triangularly arranged for last phase conductor 4 and the center of two phase conductors 5,5 down.Last phase conductor 4 ' with following two phase conductors 5 ', 5 ' center (among Fig. 1 shown in the circle) be triangularly arranged.
Preferably, on last phase conductor cross-arm 1, also hang ground wire 6.By adopting the form that on last phase conductor cross-arm, hangs ground wire, can reduce the height of body of the tower part.
Except on last phase conductor cross-arm 1, directly hanging the pattern of ground wire 6, can also as shown in Figure 2 ground line bracket 7 be set at the two ends of last phase conductor cross-arm 1, on this ground line bracket 7, hang ground wire 6.
By adopting the pattern of phase conductor and the public cross-arm of ground line bracket, can reduce the height of body of the tower part.
Tower head pattern as last phase conductor and the public cross-arm of ground line bracket except goat's horn type shown in Figure 2, can also adopt forward type shown in Figure 3.
Fig. 2 and Fig. 3 illustrate the tower head pattern of phase conductor and ground line bracket public cross-arm, but the ground line bracket also can be connected with body of the tower independently, and not with the public cross-arm of last phase conductor.Tower head pattern in this case as shown in Figure 4, the tower head top of body of the tower 3, on the top of phase conductor cross-arm 1 ground line bracket 7 is set, suspension ground wire 6 on this ground line bracket 7.
Each phase transmission pressure among Fig. 1～Fig. 4 all is suspended on phase conductor cross-arm 1 or the following phase conductor cross-arm 2 with I type insulator string 8.But, can also hang each phase conductor by the form that V-type insulator string, I type insulator string or V-type insulator string and I type insulator string combine.
Preferably, described tangent tower is a steel tubular structure, and the steel pipe section adopts circle cross section, by optimal design, has both guaranteed the safety of straight line crossover tower, considers economy again, saves steel.
Though specific embodiments more of the present utility model are had been described in detail by example, it should be appreciated by those skilled in the art that above example only is in order to describe, rather than in order to limit scope of the present utility model.It should be appreciated by those skilled in the art, can under the situation that does not break away from scope and spirit of the present utility model, carry out various changes and modifications the foregoing description.
Claims (5)
1. the big leap tangent tower of AC extra high voltage comprises phase conductor cross-arm, following phase conductor cross-arm and body of the tower, it is characterized in that:
Be hung with two circuit interchange three-phase power transmission lead on the described tangent tower;
The described phase conductor cross-arm of going up is arranged on the described body of the tower, the both sides of described body of the tower hang respectively with symmetrical manner a loop in the double loop on phase conductor and another loop on phase conductor;
Described phase conductor cross-arm down is arranged on the described body of the tower of described upward phase conductor cross-arm bottom, hangs following two phase conductors in a loop in the double loop and following two phase conductors in another loop in the both sides of described body of the tower respectively with symmetrical manner;
The described upward phase conductor and the described center of two phase conductors down in each loop are triangularly arranged.
2. the big leap tangent tower of AC extra high voltage according to claim 1 is characterized in that: also hang ground wire on the phase conductor cross-arm on described.
3. the big leap tangent tower of AC extra high voltage according to claim 1 is characterized in that: the two ends of phase conductor cross-arm are provided with the ground line bracket that is used to hang ground wire on described.
4. the big leap tangent tower of AC extra high voltage according to claim 1 is characterized in that: described tangent tower also comprises the ground line bracket, and this ground line bracket is arranged on the described body of the tower on described upward phase conductor cross-arm top.
5. the big leap tangent tower of AC extra high voltage according to claim 1 is characterized in that: the form that described upward phase conductor and described two phase conductors down combine by V-type insulator string, I type insulator string or V-type insulator string and I type insulator string is suspended in described going up on phase conductor cross-arm and the described phase conductor cross-arm down.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206904079U CN202090653U (en) | 2010-12-30 | 2010-12-30 | AC ultrahigh voltage large span straight line tower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206904079U CN202090653U (en) | 2010-12-30 | 2010-12-30 | AC ultrahigh voltage large span straight line tower |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202090653U true CN202090653U (en) | 2011-12-28 |
Family
ID=45365728
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206904079U Expired - Lifetime CN202090653U (en) | 2010-12-30 | 2010-12-30 | AC ultrahigh voltage large span straight line tower |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202090653U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108518117A (en) * | 2018-03-30 | 2018-09-11 | 国网山东省电力公司烟台供电公司 | A kind of compound tower head in double loop and a kind of narrow base power transmission tower |
-
2010
- 2010-12-30 CN CN2010206904079U patent/CN202090653U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108518117A (en) * | 2018-03-30 | 2018-09-11 | 国网山东省电力公司烟台供电公司 | A kind of compound tower head in double loop and a kind of narrow base power transmission tower |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 100031 Xicheng District West Chang'an Avenue, No. 86, Beijing Patentee after: State Grid Corporation of China Patentee after: NORTH CHINA POWER ENGINEERING CO., LTD. OF CHINA POWER ENGINEERING CONSULTING GROUP Address before: 100031 Xicheng District West Chang'an Avenue, No. 86, Beijing Patentee before: State Grid Corporation of China Patentee before: North China Electric Power Design Institute of China Power Engineering Consulting Group Corporation |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20111228 |