CN105155909B - A kind of single loop cut-offs into the steel pipe tower of different phase sequence arrangements - Google Patents
A kind of single loop cut-offs into the steel pipe tower of different phase sequence arrangements Download PDFInfo
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- CN105155909B CN105155909B CN201510562138.5A CN201510562138A CN105155909B CN 105155909 B CN105155909 B CN 105155909B CN 201510562138 A CN201510562138 A CN 201510562138A CN 105155909 B CN105155909 B CN 105155909B
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Abstract
A kind of single loop cut-offs into the steel pipe tower of different phase sequence arrangements.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 the cross-arm that side arrangement cut-offs route perpendicular to target on one side from tower body backwards, arranges one side triangular form cross-arm towards side is cut-off；The topping wire cross-arm arranges one side triangle cross-arm towards side is cut-off from tower body；Three side cross-arms of the triangle cross-arm arrange that, from the apex angle of tower body fixed triangle shape cross-arm, the bottom edge parallel object of triangle cross-arm cut-offs line direction in isosceles triangle.The present invention realizes the problem of single loop is cut-off using a base shaft tower, reduce newly-built shaft tower quantity, forms different phase sequence arrangements double loop after cut-offfing and continue cabling, reduce cable space electric field strength, the use of double loop branch bar is avoided, does not change the wire arrangements mode of adjacent shaft tower.
Description
Technical field:
The present invention relates to ultra-high-tension power transmission line technical fields more particularly to a kind of single loop to cut-off into different phase sequence arrangements
Steel pipe tower.
Background technique:
In ultra-high-tension power transmission line, single loop cut-offs to form double-circuit line to access newly-built substation be ubiquitous system scheme
One of.Existing single loop cut-offs scheme mainly point following two.
1) a base double loop tension-resistant rod is created below route being cut-off, tension pole cross arm cut-off line direction cloth in parallel
It sets.Usually it is in the arrangement of "upper" font using the single back line that steel pipe pole is set up, is led using the double-circuit line two sides that steel pipe pole is set up
The usually perpendicular arrangement of line easily causes adjacent tangent tower conducting wire suspension string to deviate vertical state, exists and be not able to satisfy former single loop
The possibility that shaft tower electric clearance requires.
2) cut-off below route create two base single loop tension-resistant rods, will after line disconnection access double loop tension-resistant rod after
Continuous cabling.Newly-built single loop strain rod tower quantity is more, and land occupation is larger, and corridor is wider, and construction investment and enforcement difficulty are larger.
For the influence for reducing transmission line of electricity periphery electromagnetic environment, double-circuit line two sides Traverse phase-order need to be pressed different phase sequence cloth
It sets, to reduce cable space electric field strength.
Summary of the invention:
The object of the present invention is to provide the steel pipe towers that a kind of single loop cut-offs into different phase sequence arrangements, only with a base shaft
Tower realizes the problem of single loop is cut-off, and reduces newly-built shaft tower quantity, forms different phase sequence arrangements double loop after cut-offfing and continues
Cabling reduces cable space electric field strength, avoids the use of double loop branch bar, do not change the wire arrangements side of adjacent shaft tower
Formula.
In order to solve the problems, such as background technique, the invention adopts the following technical scheme: it includes 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,
It is provided with topping wire cross-arm below top layer ground wire cross-arm, is provided with middle layer conductor cross-arm below topping wire cross-arm, middle layer is led
Lower layer conductor cross-arm is provided with below line cross-arm；
The top layer ground wire cross-arm cut-offs the cross-arm that side arrangement cut-offs route perpendicular to target on one side from tower body backwards, towards
It cut-offs side and arranges one side triangular form cross-arm；
The topping wire cross-arm arranges one side triangle cross-arm towards side is cut-off from tower body；
Three side cross-arms of the triangle cross-arm are arranged in isosceles triangle, from the apex angle of tower body fixed triangle shape cross-arm,
The bottom edge parallel object of triangle cross-arm cut-offs line direction；
The middle layer conductor cross-arm, lower layer conductor cross-arm, which cut-off side backwards from tower body and cut-off route perpendicular to target, to be evenly distributed with
Set on one side cross-arm, parallel object cut-off line direction arrange. while cross-arming, cut-offfing line direction arrangement at an acute angle with target
From one side for being parallel to target and cut-offfing line direction that tower body is arranged in cross-arm, the middle layer conductor cross-arm and lower layer conductor cross-arm
Cross-arm face direction is on the contrary, cut-off route cloth at an acute angle from tower body and target in the middle layer conductor cross-arm, lower layer conductor cross-arm
One side cross-arm set, cross-arm vertical target cut-off line direction projection and cut-off line direction projection towards side, parallel object is cut-off
It is opposite that line direction cross-arm is cut-off with same layer parallel object.
The invention has the following advantages that
1) it is compared compared with scheme one, does not change target and cut-off line conductor arrangement, it is electrical to reduce former single loop shaft tower
The possibility of clearance requirement；
2) compared compared with scheme two, complete single loop merely with a basic invention shaft tower and cut-off, formed double-circuit line after
Continuous cabling, reduces newly-built shaft tower quantity, occupied area；
3) continue cabling in double loop after cut-offfing, former double loop branch tower can use straight line pole according to on-site actual situations
(or low-angle angle pole) replaces, and reduces shaft tower use condition, reduces line corridor；
4) the double loop cabling that different phase sequence arrangements are formed after cut-offfing, reduces cable space electric field strength；
5) triangle cross-arm, which is conducive to offset, forms route to the stress of cross-arm, whole knot after target is cut-off route and cut-off
Structure is more stable.
Detailed description of the invention:
Fig. 1 is the structural diagram of the present invention；
Fig. 2 is the right view of Fig. 1；
Fig. 3 is the structural schematic diagram of top layer ground wire cross-arm；
Fig. 4 is the structural schematic diagram of topping wire cross-arm；
Fig. 5 is the structural schematic diagram of middle layer conductor cross-arm；
Fig. 6 is the structural schematic diagram of lower layer conductor cross-arm；
Fig. 7 is wiring schematic diagram of the present invention.
Specific embodiment:
Referring to Fig.1-2, the present invention include tower body 1, top layer ground wire cross-arm 2, topping wire cross-arm 3, middle layer conductor cross-arm 4,
Lower layer conductor cross-arm 5,1 top of tower body are provided with top layer ground wire cross-arm 2, are provided with upper layer below top layer ground wire cross-arm 2 and lead
Line cross-arm 3 is provided with middle layer conductor cross-arm 4 below topping wire cross-arm 3, is provided with lower layer conductor below middle layer conductor cross-arm 4
Cross-arm 5.
Referring to Fig. 3, the top layer ground wire cross-arm 2 cut-offs side arrangement from tower body 1 backwards and cut-offs route perpendicular to target on one side
Cross-arm, arrange one side triangular form cross-arm towards side is cut-off.
Referring to Fig. 4, topping wire cross-arm 3 arranges one side triangle cross-arm towards side is cut-off from tower body 1.
Referring to 3-4, three side cross-arms of above-mentioned triangle cross-arm are arranged in isosceles triangle, horizontal from 1 fixed triangle shape of tower body
The apex angle of load, the bottom edge parallel object of triangle cross-arm cut-off line direction, and triangle cross-arm vertex is perpendicular to bottom edge height
Length by target cut-off route grounded-line arrangement determine, the length on triangle cross-arm bottom edge forms double-circuit line by cut-offfing
Grounded-line arrangement determines.
Referring to Fig. 5-6, the middle layer conductor cross-arm 4, lower layer conductor cross-arm 5 from tower body 1 cut-off side and backwards perpendicular to mesh
Mark cut-off route arrange on one side cross-arm, parallel object cut-off while line direction is arranged cross-arm, and target cut-off line direction
Arrangement one side at an acute angle cross-arm, the middle layer conductor cross-arm 4 are parallel to target from what tower body 1 was arranged with lower layer conductor cross-arm 5
Cut-off one side cross-arm face direction of line direction on the contrary, in the middle layer conductor cross-arm 4, lower layer conductor cross-arm 5 from tower body 1 with
Target cut-offs one side cross-arm of route arrangement at an acute angle, and cross-arm vertical target cut-offs line direction projection towards side is cut-off, in parallel
Target cut-offs line direction projection, and with same layer parallel object to cut-off line direction cross-arm opposite.
The top layer ground wire cross-arm 2, topping wire cross-arm 3, middle layer conductor cross-arm 4, lower 5 length of layer conductor cross-arm and spacing
It need to consider the minimum water between conducting wire between grounded-line between electrical distance, the electrical distance of conducting wire and tower body, upper and lower level adjacent wires
Flat offset distance.
Referring to Fig. 7, the steel for creating a basic invention single loop below route and cut-offfing into different phase sequence arrangements is cut-off in target
Target is cut-off and is mutually suspended on 3 intermediate cam shape cross-arm bottom edge of topping wire cross-arm in line conductor on phase line line conductor by tube rod tower
The apex of cross-arm cut-offs with target the throwing that route cross-arm at an acute angle cut-offs line direction in target in middle layer conductor cross-arm 4
The side that shadow is directed toward, cut-offs route two-phase side conducting wire for the sidelong glance mark and is respectively connected to open in middle layer conductor cross-arm 4 perpendicular to target
The cross-arm on broken string road is cut-off on route cross-arm at an acute angle, the connection of lower layer conductor cross-arm 5 and middle layer conductor cross-arm 4 with target
Unanimously, the apex for route will be cut-off being suspended on 3 intermediate cam type cross-arm bottom edge cross-arm of topping wire cross-arm, middle layer conductor cross-arm 4,
The parallel circuit direction of lower layer conductor cross-arm 5 on one side cross-arm and with target cut-off route it is at an acute angle while cross-arm, utilize jump
Line cut-offs the connection for jumping string realization route of line direction cross-arm and the adjustment of phase sequence with parallel object is hung on.
Claims (1)
1. the steel pipe tower that a kind of single loop cut-offs into different phase sequence arrangements, which is characterized in that it includes tower body, top layer ground wire cross
Load, 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 layer
It is provided with topping wire cross-arm below ground wire cross-arm, middle layer conductor cross-arm is provided with below topping wire cross-arm, middle layer conductor is horizontal
Load lower section is provided with lower layer conductor cross-arm；
The top layer ground wire cross-arm cut-offs side arrangement backwards from tower body and cut-offs the cross-arm of route perpendicular to target on one side, towards cut-offfing
One side triangular form cross-arm is arranged in side；
The topping wire cross-arm arranges one side triangle cross-arm towards side is cut-off from tower body；
Three side cross-arms of the triangle cross-arm are arranged in isosceles triangle, from the apex angle of tower body fixed triangle shape cross-arm, triangle
The bottom edge parallel object of shape cross-arm cut-offs line direction；
The middle layer conductor cross-arm, lower layer conductor cross-arm, which cut-off side backwards from tower body and cut-off route perpendicular to target, arranges one
Side cross-arm, parallel object cut-off line direction and arrange on one side cross-arm, cut-off with target while line direction arrangement at an acute angle and cross-arm,
One side cross-arm for being parallel to target and cut-offfing line direction arranged in the middle layer conductor cross-arm and lower layer conductor cross-arm from tower body
Face direction is on the contrary, cut-off route arrangement at an acute angle from tower body and target in the middle layer conductor cross-arm, lower layer conductor cross-arm
One side cross-arm, cross-arm vertical target cut-off line direction projection towards cut-offfing side, parallel object cut-off line direction projection with it is same
It is opposite that layer parallel object cut-offs line direction cross-arm.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510562138.5A CN105155909B (en) | 2015-09-07 | 2015-09-07 | A kind of single loop cut-offs into the steel pipe tower of different phase sequence arrangements |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510562138.5A CN105155909B (en) | 2015-09-07 | 2015-09-07 | A kind of single loop cut-offs into the steel pipe tower of different phase sequence arrangements |
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| Publication Number | Publication Date |
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| CN105155909A CN105155909A (en) | 2015-12-16 |
| CN105155909B true CN105155909B (en) | 2019-02-19 |
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| CN201510562138.5A Active CN105155909B (en) | 2015-09-07 | 2015-09-07 | A kind of single loop cut-offs into the steel pipe tower of different phase sequence arrangements |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| 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 |
| CN114336493B (en) * | 2021-12-14 | 2024-03-08 | 中国电建集团河北省电力勘测设计研究院有限公司 | Construction method for high-voltage transmission cable terminal rod of parallel-frame distribution network line |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2538711A1 (en) * | 1975-08-30 | 1977-03-10 | Bbc Brown Boveri & Cie | Guide rig for HV multiple line overhead transmission lines - has masts spaced alternately along right of way with insulation arms on both sides and one side respectively |
| 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 |
| CN103972835A (en) * | 2014-03-24 | 2014-08-06 | 王力 | Novel V-combination serial type transmission line tower |
| CN205000712U (en) * | 2015-09-07 | 2016-01-27 | 安徽华电工程咨询设计有限公司 | Single loop cut -offs into steel pipe shaft tower that different phase sequences were arranged |
-
2015
- 2015-09-07 CN CN201510562138.5A patent/CN105155909B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2538711A1 (en) * | 1975-08-30 | 1977-03-10 | Bbc Brown Boveri & Cie | Guide rig for HV multiple line overhead transmission lines - has masts spaced alternately along right of way with insulation arms on both sides and one side respectively |
| 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 |
| CN103972835A (en) * | 2014-03-24 | 2014-08-06 | 王力 | Novel V-combination serial type transmission line tower |
| CN205000712U (en) * | 2015-09-07 | 2016-01-27 | 安徽华电工程咨询设计有限公司 | Single loop cut -offs into steel pipe shaft tower that different phase sequences were arranged |
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| CN105155909A (en) | 2015-12-16 |
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Inventor after: Luo Zhengbang Inventor after: Zhu Kai Inventor after: Chen Yan Inventor after: Wang Shibin Inventor after: Nie Xiaotao Inventor after: Ying Zhifu Inventor after: Chen Yanyan Inventor after: Xia Wei Inventor after: Zheng Shaojiang Inventor after: Liang Dongyue Inventor after: Wang Li Inventor after: Liu Kun Inventor after: Zhao Hui Inventor after: Yu Yongyang Inventor after: Ge Na Inventor after: Liu Ximin Inventor after: Ding Bo Inventor after: Wang Chenghua Inventor before: Luo Zhengbang Inventor before: Nie Xiaotao Inventor before: Ying Zhifu Inventor before: Chen Yanyan Inventor before: Xia Wei Inventor before: Zheng Shaojiang Inventor before: Liang Dongyue Inventor before: Zhao Hui Inventor before: Wang Li Inventor before: Yu Yongyang Inventor before: Ge Na Inventor before: Liu Ximin Inventor before: Wang Chenghua Inventor before: Chen Yan Inventor before: Wang Shibin |
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