CN105155910B - A kind of single loop that string is combined using V-shape cut-offs steel pipe tower - Google Patents
A kind of single loop that string is combined using V-shape cut-offs steel pipe tower Download PDFInfo
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- CN105155910B CN105155910B CN201510562148.9A CN201510562148A CN105155910B CN 105155910 B CN105155910 B CN 105155910B CN 201510562148 A CN201510562148 A CN 201510562148A CN 105155910 B CN105155910 B CN 105155910B
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Abstract
A kind of single loop that string is combined using V-shape cut-offs steel pipe tower.It includes tower body, top layer ground wire cross-arm, topping wire cross-arm, middle layer conductor cross-arm, lower layer conductor cross-arm, the top layer ground wire cross-arm cut-offs side arrangement from tower body while cut-offfing the cross-arm of circuit perpendicular to target backwards, one side triangular form cross-arm is arranged towards side is cut-off, three side cross-arms of the triangle cross-arm are arranged in isosceles triangle, from the drift angle of tower body fixed triangle shape cross-arm, the base parallel object of triangle cross-arm cut-offs line direction；The topping wire cross-arm cut-offs line arrangement both sides cross-arm from tower body parallel object, cut-offs line arrangement one side cross-arm towards side vertical target is cut-off；The middle layer conductor cross-arm cut-offs line arrangement both sides cross-arm from tower body parallel object, cut-offs line arrangement both sides cross-arm from tower body vertical target；The lower layer conductor cross-arm cut-offs line arrangement both sides cross-arm from tower body parallel object.The present invention realizes the problem of single loop cut-offs only with a base shaft tower, reduce newly-built shaft tower quantity, different phase sequence arrangement double loops are formed after cut-offfing and continue cabling, reduce cable space electric-field intensity, avoid the use of double loop branch bar, do not change the wire arrangements mode of adjacent shaft tower, reduce the possibility of adjacent tower transformation.
Description
Technical field：
The present invention relates to ultra-high-tension power transmission line technical field, more particularly to a kind of single loop that string is combined using V-shape to open
Disconnected steel pipe tower.
Background technology：
In ultra-high-tension power transmission line, single loop is cut-off to be formed double-circuit line access newly-built transformer station be ubiquitous system scheme it
One, existing single loop cut-off scheme mainly divide it is following two：
1）Newly-built base double loop tension-resistant rod below circuit is being cut-off, tension pole cross arm is parallel to be cut-off line direction cloth
Put, using steel pipe pole set up single back line generally in " on " font arrange, using steel pipe pole set up double-circuit line both sides lead
The generally perpendicular arrangement of line, easily cause adjacent tangent tower wire suspension string and deviate vertical state, former single loop can not be met by existing
The possibility of shaft tower electric clearance requirement.
2）Cut-off newly-built two bases single loop tension-resistant rod below circuit, will after line disconnection access double loop tension-resistant rod after
Continuous cabling, newly-built single loop strain rod tower quantity is more, and occupation of land is larger, and corridor is wider, and construction investment and enforcement difficulty are larger.
Both the above scheme, need to be by double-circuit line both sides Traverse phase-order to reduce the influence of transmission line of electricity periphery electromagnetic environment
Arranged by different phase sequences, to reduce cable space electric-field intensity.
The content of the invention：
It is an object of the invention to provide a kind of single loop that string is combined using V-shape to cut-off steel pipe tower, only with a base
Shaft tower realizes the problem of single loop cut-offs, and reduces newly-built shaft tower quantity, formed after cut-offfing different phase sequences arrangement double loops after
Continuous cabling, reduces cable space electric-field intensity, avoids the use of double loop branch bar, do not change the wire arrangements side of adjacent shaft tower
Formula, reduce the possibility of adjacent tower transformation.
In order to solve problem present in background technology, the present invention uses following technical scheme：It is with including tower body, top layer
Line cross-arm, topping wire cross-arm, middle layer conductor cross-arm, lower layer conductor cross-arm, the tower body top are provided with top layer ground wire cross-arm,
Topping wire cross-arm is provided with below top layer ground wire cross-arm, is provided with middle layer conductor cross-arm below topping wire cross-arm, middle level is led
Lower layer conductor cross-arm is provided with below line cross-arm；
The top layer ground wire cross-arm cut-offs side arrangement from tower body while cut-offfing the cross-arm of circuit perpendicular to target backwards, towards
Cut-off side and arrange one side triangular form cross-arm, three side cross-arms of the triangle cross-arm are arranged in isosceles triangle, are fixed from tower body
The drift angle of triangle cross-arm, the base parallel object of triangle cross-arm cut-off line direction；
The topping wire cross-arm cut-offs line arrangement both sides cross-arm from tower body parallel object, towards cut-offfing side vertical target
Cut-off line arrangement one side cross-arm；
The middle layer conductor cross-arm cut-offs line arrangement both sides cross-arm from tower body parallel object, is cut-off from tower body vertical target
Line arrangement both sides cross-arm；
The lower layer conductor cross-arm cut-offs line arrangement both sides cross-arm from tower body parallel object；
Cut-off in the topping wire cross-arm, middle layer conductor cross-arm perpendicular to target and V is provided with the cross-arm of line direction
Type combined insulator string, the V-type combined insulator string are docked by two horizontally disposed strain insulator-strings of suitable line direction, while
Two strain insulator-string joint horizontal path sides connect up V-type connection gold utensil, and V-type connection gold utensil is connected with cross-arm again.
The present invention has advantages below：
1）Do not change target and cut-off line conductor arrangement, reduce target and cut-off the adjacent shaft tower of circuit and be difficult to meet electric equipment compartment
The possibility of gap requirement；
2）Single loop can be completed merely with 1 basic patent shaft tower to cut-off, newly-built shaft tower negligible amounts, investment reduction；
3）Cut-off to form double-circuit line continuation cabling, former four branch of a circuit towers can use straight line pole according to on-site actual situations
（Or low-angle angle pole）Instead of reducing shaft tower use condition, reducing line corridor；
4）Triangle cross-arm, which is advantageous to offset, forms stress of the circuit to cross-arm after target is cut-off circuit and cut-off, overall knot
Structure is more stable.
5）Line side insulator chain is cut-off in target to design using " V-type " combined insulator string.Cut-off not changing target
The overhanging feature of line direction circuit, compressible tower head width.
Brief description of the drawings：
Fig. 1 is the structural representation of the present invention；
Fig. 2 is Fig. 1 right view；
Fig. 3 is the structural representation of top layer ground wire cross-arm；
Fig. 4 is the structural representation of topping wire cross-arm；
Fig. 5 is the structural representation of middle layer conductor cross-arm；
Fig. 6 is the structural representation of lower layer conductor cross-arm；
Fig. 7 is wiring schematic diagram of the present invention；
Fig. 8 is the structural representation of V-type combined insulator string；
Fig. 9 is the left view of V-type connection gold utensil in Fig. 8.
Embodiment：
Reference picture 1-2, the present invention it include tower body 1, top layer ground wire cross-arm 2, topping wire cross-arm 3, middle layer conductor cross-arm
4th, lower layer conductor cross-arm 5, the top of tower body 1 are provided with top layer ground wire cross-arm 2, and the lower section of top layer ground wire cross-arm 2 is provided with upper strata
Wire cross-arm 3, the lower section of topping wire cross-arm 3 are provided with middle layer conductor cross-arm 4, and the middle lower section of layer conductor cross-arm 4 is provided with lower floor and led
Line cross-arm 5.
Reference picture 3, the top layer ground wire cross-arm 2 cut-off side arrangement while cut-offfing circuit perpendicular to target backwards from tower body 1
Cross-arm, arrange one side triangular form cross-arm towards side is cut-off, three side cross-arms of the triangle cross-arm are arranged in isosceles triangle,
From the drift angle of tower body fixed triangle shape cross-arm, the base parallel object of triangle cross-arm cut-offs line direction.
Reference picture 4, the topping wire cross-arm 3 cut-off line arrangement both sides cross-arm from the parallel object of tower body 1, towards cut-offfing
Side vertical target cut-offs line arrangement one side cross-arm.
Reference picture 5, the middle layer conductor cross-arm 4 cut-offs line arrangement both sides cross-arm from the parallel object of tower body 1, from tower body 1
Vertical target cut-offs line arrangement both sides cross-arm.
Reference picture 6, the lower layer conductor cross-arm 5 cut-off line arrangement both sides cross-arm from the parallel object of tower body 1.
The top layer ground wire cross-arm 2, topping wire cross-arm 3, middle layer conductor cross-arm 4, the lower length of layer conductor cross-arm 5 and spacing
The minimum water between ground wire between electrical distance, the electrical distance of wire and tower body, levels adjacent wires between wire need to be considered
Flat offset distance.
Reference picture 7-9, cut-off a newly-built basic invention shaft tower, topping wire cross-arm and middle layer conductor below circuit in target
Cut-off in cross-arm perpendicular to target sets V-type combined insulator string 6 to hang former line conductor, the V on the cross-arm of line direction
Type combined insulator string is hung down by being docked along two horizontally disposed strain insulator-strings 7 of line direction in two joints of strain insulator-string 7
Straight line path side connects up V-type connection gold utensil 8, and V-type connection gold utensil 8 is connected with cross-arm again.Topping wire cross-arm, middle layer conductor are horizontal
Line conductor, top layer ground wire cross-arm are formed after being cut-off in load, lower layer conductor cross-arm parallel to suspension on the cross-arm of former line direction
The cross-arm for cut-offfing side arrangement backwards hangs former line grounding wire, towards the two apexes suspension for the triangular form cross-arm for cut-offfing side arrangement
Former circuit and cut-off rear line grounding wire.
The mode of connection is completed to form the double circuit line of different phase sequence arrangements after cut-offfing, and the topping wire of parallel former circuit is horizontal
The upper phase conductor of rear circuit is cut-off in load suspension, is connected by wire jumper with the middle phase conductor of former circuit, the middle level of parallel former circuit is led
Line cross-arm hangs the middle phase conductor for cut-offfing rear circuit, is connected by wire jumper and jump string with a side, passes through wire jumper and opposite side
While it is connected；The lower phase conductor of rear circuit is cut-off in the lower layer conductor cross-arm suspension of parallel former circuit, by wire jumper and jumps string and one
Side is connected, and is connected by wire jumper with another side, and line conductor is cut-off perpendicular to target the one of top layer ground wire cross-arm
Side cross-arm suspension target cut-offs the ground wire of circuit, and line grounding wire is cut-off in the apex suspension of the base cross-arm of triangular form ground wire cross-arm
And line grounding wire is formed after cut-offfing.
Claims (1)
1. a kind of single loop that string is combined using V-shape cut-offs steel pipe tower, it is characterised in that it includes tower body, top layer ground wire
Cross-arm, topping wire cross-arm, middle layer conductor cross-arm, lower layer conductor cross-arm, the tower body top are provided with top layer ground wire cross-arm, top
Topping wire cross-arm is provided with below layer ground wire cross-arm, middle layer conductor cross-arm, middle layer conductor are provided with below topping wire cross-arm
Lower layer conductor cross-arm is provided with below cross-arm；
The top layer ground wire cross-arm cut-offs side arrangement from tower body while cut-off the cross-arm of circuit perpendicular to target backwards, towards cut-offfing
One side triangular form cross-arm is arranged in side, and three side cross-arms of the triangle cross-arm are arranged in isosceles triangle, from tower body fixed triangle
The drift angle of shape cross-arm, the base parallel object of triangle cross-arm cut-off line direction；
The topping wire cross-arm cut-offs line arrangement both sides cross-arm from tower body parallel object, is cut-off towards side vertical target is cut-off
Line arrangement one side cross-arm；
The middle layer conductor cross-arm cut-offs line arrangement both sides cross-arm from tower body parallel object, cut-offs circuit from tower body vertical target
Arrange both sides cross-arm；
The lower layer conductor cross-arm cut-offs line arrangement both sides cross-arm from tower body parallel object；
Cut-off in the topping wire cross-arm, middle layer conductor cross-arm perpendicular to target and V-type group is provided with the cross-arm of line direction
Insulator chain is closed, the V-type combined insulator string is docked by two horizontally disposed strain insulator-strings of suitable line direction, while at two
Strain insulator-string joint horizontal path side connects up V-type connection gold utensil, and V-type connection gold utensil is connected with cross-arm again.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510562148.9A CN105155910B (en) | 2015-09-07 | 2015-09-07 | A kind of single loop that string is combined using V-shape cut-offs steel pipe tower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510562148.9A CN105155910B (en) | 2015-09-07 | 2015-09-07 | A kind of single loop that string is combined using V-shape cut-offs steel pipe tower |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105155910A CN105155910A (en) | 2015-12-16 |
| CN105155910B true CN105155910B (en) | 2018-03-13 |
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| CN201510562148.9A Active CN105155910B (en) | 2015-09-07 | 2015-09-07 | A kind of single loop that string is combined using V-shape cut-offs steel pipe tower |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106555497A (en) * | 2016-09-26 | 2017-04-05 | 安徽华电工程咨询设计有限公司 | A kind of single time overhead transmission line cable T joint draws lower anchor support |
| CN111927189A (en) * | 2020-07-28 | 2020-11-13 | 国网安徽省电力有限公司经济技术研究院 | Single-loop phase-adjustable breaking tower |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| RU2256758C1 (en) * | 2004-03-04 | 2005-07-20 | ЗАО Сибирская высоковольтная энергетическая компания "ВЭЛ" | Free-standing single-stand power transmission pole |
| CN203160799U (en) * | 2013-02-19 | 2013-08-28 | 中国电力工程顾问集团西南电力设计院 | Single-circuit tension-resistant tower for 220kV power transmission lines in 32.5/s wind zones at altitude of below 5500m |
| CN203412348U (en) * | 2013-08-06 | 2014-01-29 | 安徽华电工程咨询设计有限公司 | Double-circuit single circuit cutoff power transmission steel pipe pole in Y-shaped cross arm arrangement |
| CN203412346U (en) * | 2013-08-06 | 2014-01-29 | 安徽华电工程咨询设计有限公司 | Novel single circuit breaking pole tower |
| CN203412351U (en) * | 2013-08-06 | 2014-01-29 | 安徽华电工程咨询设计有限公司 | F-shaped narrow-base triangular steel tube tower |
| CN103972835A (en) * | 2014-03-24 | 2014-08-06 | 王力 | Novel V-combination serial type transmission line tower |
| CN205046913U (en) * | 2015-09-07 | 2016-02-24 | 安徽华电工程咨询设计有限公司 | Single loop that adopts V style of calligraphy combination cluster cut -offs steel pipe shaft tower |
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| CB03 | Change of inventor or designer information |
Inventor after: Xie Tao Inventor after: Chen Yanyan Inventor after: Zheng Shaojiang Inventor after: Liang Dongyue Inventor after: Zhou Zhuan Inventor after: Yu Yongyang Inventor after: Wang Li Inventor after: Luo Zhengbang Inventor after: Mu Hong Inventor after: Zhu Xiaopeng Inventor after: Tan Yun Inventor after: Zhao Hui Inventor after: Liu Ximin Inventor before: Yu Yongyang Inventor before: Liang Dongyue Inventor before: Zhou Zhuan Inventor before: Wang Li Inventor before: Luo Zhengbang Inventor before: Zhu Xiaopeng Inventor before: Tan Yun Inventor before: Zhao Hui Inventor before: Liu Ximin Inventor before: Chen Yanyan Inventor before: Zheng Shaojiang |
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Effective date of registration: 20171214 Address after: Jinzhai road in Baohe District of Hefei city of Anhui Province, No. 122 230022 Applicant after: Anhui Huadian Engineering Consultating & Design Co., Ltd. Applicant after: Guo Wang Anhui Power Company Hefei Power Supply Company Applicant after: State Grid Anhui Electric Power Company Applicant after: Economic Technology Research Institute of State Grid Anhui Electric Power Company Address before: Jinzhai road in Baohe District of Hefei city of Anhui Province, No. 122 230001 Applicant before: Anhui Huadian Engineering Consultating & Design Co., Ltd. Applicant before: Guo Wang Anhui Power Company Hefei Power Supply Company |
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