CN104201634A - Crossover connecting and disconnecting method of single-loop line - Google Patents
Crossover connecting and disconnecting method of single-loop line Download PDFInfo
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- CN104201634A CN104201634A CN201410393074.6A CN201410393074A CN104201634A CN 104201634 A CN104201634 A CN 104201634A CN 201410393074 A CN201410393074 A CN 201410393074A CN 104201634 A CN104201634 A CN 104201634A
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- 238000000034 method Methods 0.000 title claims abstract description 21
- 230000017105 transposition Effects 0.000 claims abstract description 26
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 8
- 239000010959 steel Substances 0.000 claims abstract description 8
- 239000004020 conductor Substances 0.000 claims description 18
- 238000004064 recycling Methods 0.000 claims description 3
- 230000005540 biological transmission Effects 0.000 abstract description 2
- 230000000087 stabilizing effect Effects 0.000 abstract 1
- 238000007796 conventional method Methods 0.000 description 3
- TVEXGJYMHHTVKP-UHFFFAOYSA-N 6-oxabicyclo[3.2.1]oct-3-en-7-one Chemical compound C1C2C(=O)OC1C=CC2 TVEXGJYMHHTVKP-UHFFFAOYSA-N 0.000 description 2
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Abstract
The invention discloses a crossover connecting and disconnecting method of a single-loop line and relates to the technical field of a high-voltage transmission line. The method is characterized that a two-base single-loop tension support connecting and disconnecting line is adopted and combined with a one-base crossover transposition tower, the crossover transposition of the line is achieved by a reverse 'Chinese character xia' shaped upper cross arm and a 'Chinese character shang' shaped lower cross arm, and then the line is connected with a double-loop angle steel tower and a lightning protection range is ensured by the 'T' shaped ground lead cross arm of the crossover transposition tower. In the method, the crossover transposition tower reasonably utilizes the lead cross arm to reduce the using condition of the tower and shorten 25% of the tower head height, thereby saving project investment, stabilizing the whole structure, reducing one-base tower investment and covering area, in the method, the tower position demand is reduced, when the lightning protection range is ensured, the ground lead can be prevented from crossover and the tower size is further compressed.
Description
Technical field:
Patent of the present invention relates to ultra-high-tension power transmission line technical field, relates in particular to a kind of single back line intersection and cut-offs method.
Background technology:
According to system schema, be subject to the impact in transformer station geographical position, after cut-offfing, single back line needs to intersect that to access the situation of homonymy transformer station not general gradually.
At present, the conventional single loop intersection mode of cut-offfing mainly contains following two kinds:
1) method one: after utilizing two base single loop strain towers to cut-off, adopt base four branch of a circuit towers, three floor up and down that the utilize branch tower not monolateral cross-arm of homonymy intersect respectively access single back line and cut-off 2 loop line roads of rear formation, this mode cannot make full use of the cross-arm of four branch of a circuit towers, and the tower head of four branch of a circuit towers is higher, have the situation of waste tower material, and cross-arm is asymmetric, tower resistance to overturning is poor.
2) method two: utilize two base single loop tension-resistant rods to cut-off after circuit, adopting a base double loop branch tower to coordinate a base list to return strain tower realization intersection cut-offs, the method is first utilized a base list to return strain tower and is completed after crossing elimination leap, access again a base double loop branch tower, complete the coordinated transposition of cut-offfing line twice, this method needs two Ji Ta to realize the coordinated transposition after line disconnection, and floor space is larger, in the vertical tower limited location of part area, be often difficult to realize.
Patent of invention content:
The object of patent of the present invention is to propose a kind of single back line to intersect the method for cut-offfing; the method is adopting two base single loop strain towers to cut-off after former circuit; coordinate a Ji Jiaochahuanweita; the anti-D score font upper strata cross-arm that utilizes this transposition tower with " on " lower floor's cross-arm of font realizes the coordinated transposition of circuit; access afterwards double loop angle steel tower; and utilize " T " font ground wire cross-arm of coordinated transposition tower, guarantee lightning protection.
In order to solve the problem existing in background technology, technical scheme of the present invention is:
First adopt two base single loop strain towers that single back line is cut-off;
And then the single back line after cut-offfing is met to a Ji Jiaochahuanweita, described coordinated transposition tower comprises tower body, tower body top is provided with " T " font ground wire cross-arm, ground wire cross-arm below is provided with anti-D score font topping wire cross-arm, anti-D score font topping wire cross-arm below be provided with " on " layer conductor cross-arm under font, described anti-D score font topping wire cross-arm is made up of the upper cross-arm of tower body both sides and the lower cross-arm in tower body left side, described " on " layer conductor cross-arm is made up of the upper cross-arm on tower body right side and the lower cross-arm of tower body both sides under font, the upper cross-arm of described anti-D score font topping wire cross-arm, lower cross-arm and " on " upper cross-arm under font on layer conductor cross-arm, lower cross-arm end can be installed strain insulator-string,
Strain insulator-string one side joint on the anti-D score font topping wire cross-arm of coordinated transposition tower is entered to right side single back line, the left side wire cross-arm of opposite side access double loop angle steel tower, recycling " on " strain insulator-string one side joint under font on layer conductor cross-arm enters left side single back line, the right side wire cross-arm of opposite side access double loop angle steel tower, utilize " T " font ground wire cross-arm three limit cross-arms of coordinated transposition tower to access respectively ground wire simultaneously, wherein connect single-circuit inner side, both sides ground wire towards the cross-arm of breaking point, another both sides connect respectively single-circuit outside, both sides ground wire perpendicular to the cross-arm of ground wire direction of advance.
The upper cross-arm of described anti-D score font topping wire cross-arm, lower cross-arm and " on " upper cross-arm, lower cross-arm end under font on layer conductor cross-arm can install wire jumper support.
Described each wire jumper support below hangs with jumper string.
Patented method of the present invention has following advantage compared with conventional method:
1) this method is compared with conventional method one, by adopting " on " the coordinated transposition tower of layer conductor cross-arm and anti-D score font topping wire cross-arm structure under font, this tower rationally utilizes wire cross-arm, reduce the service condition of shaft tower, reduce approximately 25% tower head height, reduced by 6 monolateral wire cross-arms, saved construction investment, cross-arm is more symmetrical, and overall structure is more stable.
2), by install the mode of wire jumper support and jumper string additional on coordinated transposition tower wire cross-arm, wire and wire jumper sag are met outside with the spacing of tower body cross, interior mistake under strong wind operating mode and tower body electrical distance.
3) this method, compared with conventional method two, has reduced the input of a base shaft tower, has reduced floor space, and opposition tower status requirement is lower.
4) design of " T " font ground wire cross-arm, in guaranteeing lightning protection, avoids ground wire to intersect, and has further compressed tower head size.
Brief description of the drawings:
Fig. 1 is wiring schematic diagram of the present invention;
Fig. 2 is the structural representation of coordinated transposition tower in the inventive method;
Fig. 3 is the vertical view of Fig. 2.
Embodiment:
With reference to Fig. 2-3, it comprises tower body 1 coordinated transposition tower in the inventive method, tower body 1 top is provided with " T " font ground wire cross-arm 4, ground wire cross-arm 4 belows are provided with anti-D score font topping wire cross-arm 2, anti-D score font topping wire cross-arm 2 belows be provided with " on " layer conductor cross-arm 3 under font, described anti-D score font topping wire cross-arm 2 is made up of the upper cross-arm of tower body both sides and the lower cross-arm in tower body left side, described " on " layer conductor cross-arm 3 is made up of the upper cross-arm on tower body right side and the lower cross-arm of tower body both sides under font, the upper cross-arm of anti-D score font topping wire cross-arm 2, lower cross-arm and " on " upper cross-arm under font on layer conductor cross-arm 3, lower cross-arm end all can be installed wire jumper support 5 and strain insulator-string, each wire jumper support 5 belows hang with jumper string 6, described " T " font ground wire cross-arm 4 is one deck three limit cross-arm structures, wherein on one side towards breaking point, another both sides are perpendicular to ground wire direction of advance.
With reference to Fig. 1, Fig. 1 is wiring schematic diagram of the present invention, first adopt two base single loop strain towers 8 respectively single back line to be cut-off, and then strain insulator-string 7 one side joints on the anti-D score font topping wire cross-arm 2 of coordinated transposition tower are entered to right side single back line, the left side wire cross-arm of opposite side access double loop angle steel tower 9, recycling " on " strain insulator-string 7 one side joints under font on layer conductor cross-arm 3 enter left side single back line, the right side wire cross-arm of opposite side access double loop angle steel tower 9, utilize " T " font ground wire cross-arm 4 three limit cross-arms of coordinated transposition tower to access respectively ground wire simultaneously, wherein connect single-circuit inner side, both sides ground wire towards the cross-arm of breaking point, another both sides connect respectively single-circuit outside, both sides ground wire perpendicular to the cross-arm of ground wire direction of advance.The present invention adjusts to opposite side by the left and right sides wire that single back line is cut-off to rear formation from a side, thereby realizes the coordinated transposition of both sides wire.
The present invention is arranged on tower body left side by establishing by the lower cross-arm of anti-coordinated transposition tower D score font topping wire cross-arm 2, by " on " the upper cross-arm of layer conductor cross-arm 3 is arranged on tower body right side under font, make to keep between levels wire cross-arm enough electric equipment compartment distances, and install wire jumper support 5 and jumper string 6 additional in conjunction with actual needs, guarantee that both sides wire meets the needs of wire and shaft tower electric clearance, meeting under the condition of the stressed and electric clearance of shaft tower like this, only solved the coordinated transposition problem of the wire after single back line cut-offs by a Ji Ta, reduce tower head size, reduced the tower material consumption in conventional coordinated transposition tower simultaneously, solve the poor shortcoming of economy, in addition the upper cross-arm of anti-D score font topping wire cross-arm and " on " the equal both sides of the lower cross-arm symmetry of layer conductor cross-arm under font, and the lower cross-arm of anti-D score font topping wire cross-arm and " on " the upper cross-arm position of layer conductor cross-arm is nearer under font, after both cancel out each other to the active force of tower body, stability influence to tower body is less, make the overall structure of tower body more stable.
The present invention utilizes coordinated transposition tower " T " font ground wire cross-arm 4 three limit cross-arms to access respectively ground wire, and guarantees the lightning protection of wire by adjusting the length of " T " font ground wire cross-arm, avoids ground wire to intersect, and has further compressed tower head size.
Claims (3)
1. single back line intersection is cut-off a method, it is characterized in that, it comprises that step is:
First adopt two base single loop strain towers that single back line is cut-off;
And then the single back line after cut-offfing is met to a Ji Jiaochahuanweita, described coordinated transposition tower comprises tower body, tower body top is provided with " T " font ground wire cross-arm, ground wire cross-arm below is provided with anti-D score font topping wire cross-arm, anti-D score font topping wire cross-arm below be provided with " on " layer conductor cross-arm under font, described anti-D score font topping wire cross-arm is made up of the upper cross-arm of tower body both sides and the lower cross-arm in tower body left side, described " on " layer conductor cross-arm is made up of the upper cross-arm on tower body right side and the lower cross-arm of tower body both sides under font, the upper cross-arm of described anti-D score font topping wire cross-arm, lower cross-arm and " on " upper cross-arm under font on layer conductor cross-arm, lower cross-arm end can be installed strain insulator-string,
Strain insulator-string one side joint on the anti-D score font topping wire cross-arm of coordinated transposition tower is entered to right side single back line, the left side wire cross-arm of opposite side access double loop angle steel tower, recycling " on " strain insulator-string one side joint under font on layer conductor cross-arm enters left side single back line, the right side wire cross-arm of opposite side access double loop angle steel tower, utilize " T " font ground wire cross-arm three limit cross-arms of coordinated transposition tower to access respectively ground wire simultaneously, wherein connect single-circuit inner side, both sides ground wire towards the cross-arm of breaking point, another both sides connect respectively single-circuit outside, both sides ground wire perpendicular to the cross-arm of ground wire direction of advance.
2. method according to claim 1, is characterized in that, the upper cross-arm of described anti-D score font topping wire cross-arm, lower cross-arm and " on " upper cross-arm, lower cross-arm end under font on layer conductor cross-arm can install wire jumper support.
3. method according to claim 2, is characterized in that, described each wire jumper support below hangs with jumper string.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410393074.6A CN104201634B (en) | 2014-08-06 | 2014-08-06 | A kind of single back line intersects cutoff method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410393074.6A CN104201634B (en) | 2014-08-06 | 2014-08-06 | A kind of single back line intersects cutoff method |
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| CN104201634A true CN104201634A (en) | 2014-12-10 |
| CN104201634B CN104201634B (en) | 2017-08-11 |
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| CN201410393074.6A Active CN104201634B (en) | 2014-08-06 | 2014-08-06 | A kind of single back line intersects cutoff method |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105257067A (en) * | 2015-09-07 | 2016-01-20 | 安徽华电工程咨询设计有限公司 | Double-circuit double-sided breaking steel-tube tower using V-shaped combined strings |
| CN106555498A (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 cut-offs and draws lower angle tower |
| CN107394737A (en) * | 2017-08-22 | 2017-11-24 | 四川电力设计咨询有限责任公司 | Transmission line of alternation current intersects crossing structure |
| 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 |
| CN113090096A (en) * | 2021-03-19 | 2021-07-09 | 国核电力规划设计研究院有限公司 | Double-circuit power transmission line disconnection tower, disconnection system and method |
| CN113090095A (en) * | 2021-03-18 | 2021-07-09 | 国核电力规划设计研究院有限公司 | Loop crossing tower and loop crossing line |
| CN113137112A (en) * | 2021-04-14 | 2021-07-20 | 国网经济技术研究院有限公司 | Transmission tower based on equipment sharing |
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| US20100064598A1 (en) * | 2008-09-17 | 2010-03-18 | Korea Electric Power Corporation | Power transmission tower |
| WO2012025153A1 (en) * | 2010-08-26 | 2012-03-01 | Josep Tresserras Picas | Kit for mounting one or more appliances on a pole |
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| CN103046790A (en) * | 2012-11-29 | 2013-04-17 | 安徽华电工程咨询设计有限公司 | Novel single circuit T-connecting transmission tower |
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| CN201252381Y (en) * | 2008-08-27 | 2009-06-03 | 曾亮 | Power line single-circuit T connection steel pipe pole |
| US20100064598A1 (en) * | 2008-09-17 | 2010-03-18 | Korea Electric Power Corporation | Power transmission tower |
| CN201297055Y (en) * | 2008-11-07 | 2009-08-26 | 浙江省电力设计院 | Strain angle tower in the shape of Chinese character 'Gan' with shared-tower and three-circuit transmission line |
| WO2012025153A1 (en) * | 2010-08-26 | 2012-03-01 | Josep Tresserras Picas | Kit for mounting one or more appliances on a pole |
| CN103046791A (en) * | 2012-11-29 | 2013-04-17 | 安徽华电工程咨询设计有限公司 | Transmission line tangent tower using double-loop cable T guide |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105257067A (en) * | 2015-09-07 | 2016-01-20 | 安徽华电工程咨询设计有限公司 | Double-circuit double-sided breaking steel-tube tower using V-shaped combined strings |
| CN106555498A (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 cut-offs and draws lower angle tower |
| CN107394737A (en) * | 2017-08-22 | 2017-11-24 | 四川电力设计咨询有限责任公司 | Transmission line of alternation current intersects crossing structure |
| CN107394737B (en) * | 2017-08-22 | 2018-12-28 | 四川电力设计咨询有限责任公司 | Transmission line of alternation current intersects crossing structure |
| 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 |
| CN113090095A (en) * | 2021-03-18 | 2021-07-09 | 国核电力规划设计研究院有限公司 | Loop crossing tower and loop crossing line |
| CN113090096A (en) * | 2021-03-19 | 2021-07-09 | 国核电力规划设计研究院有限公司 | Double-circuit power transmission line disconnection tower, disconnection system and method |
| CN113090096B (en) * | 2021-03-19 | 2022-11-29 | 国核电力规划设计研究院有限公司 | Double-circuit power transmission line disconnection tower, disconnection system and method |
| CN113137112A (en) * | 2021-04-14 | 2021-07-20 | 国网经济技术研究院有限公司 | Transmission tower based on equipment sharing |
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| CN104201634B (en) | 2017-08-11 |
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Inventor after: Xie Tao Inventor after: Cheng Jinsong Inventor after: Xu Jin Inventor after: Ge Yijun Inventor after: Wang Xiangyang Inventor after: Zhang Hao Inventor after: Zheng Shaojiang Inventor after: Zou Benwei Inventor after: Wang Li Inventor after: Zhao Hui Inventor after: Yu Yongyang Inventor after: Luo Zhengbang Inventor after: Li Xiaoli Inventor after: Liu Chuanjian Inventor after: Li Weiguo Inventor after: Chen Liming Inventor before: Wang Li Inventor before: Cheng Jinsong Inventor before: Xu Jin Inventor before: Ge Yijun Inventor before: Wang Xiangyang Inventor before: Zhang Hao Inventor before: Zheng Shaojiang Inventor before: Zou Benwei Inventor before: Zhao Hui Inventor before: Yu Yongyang Inventor before: Luo Zhengbang Inventor before: Li Xiaoli Inventor before: Liu Chuanjian Inventor before: Li Weiguo Inventor before: Chen Liming Inventor before: Xie Tao |
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Address after: 230001 Anhui Electric Power Company, No. 9 Huangshan Road, Hefei City, Anhui Province Co-patentee after: Wang Li Patentee after: Xie Tao Co-patentee after: Xu Jin Co-patentee after: Ge Yijun Co-patentee after: Wang Xiangyang Co-patentee after: Zhang Hao Co-patentee after: Zheng Shaojiang Co-patentee after: Zou Benwei Co-patentee after: Zhao Hui Co-patentee after: Yu Yongyang Co-patentee after: Luo Zhengbang Co-patentee after: Li Xiaoli Co-patentee after: Liu Chuanjian Co-patentee after: Li Weiguo Co-patentee after: Chen Liming Co-patentee after: Cheng Jinsong Address before: 230001 Anhui Huadian Engineering Consulting and Design Co., Ltd. No. 122 Jinzhai Road, Hefei City, Anhui Province Co-patentee before: Zhao Hui Patentee before: Wang Li Co-patentee before: Xu Jin Co-patentee before: Ge Yijun Co-patentee before: Wang Xiangyang Co-patentee before: Zhang Hao Co-patentee before: Zheng Shaojiang Co-patentee before: Zou Benwei Co-patentee before: Yu Yongyang Co-patentee before: Luo Zhengbang Co-patentee before: Li Xiaoli Co-patentee before: Liu Chuanjian Co-patentee before: Li Weiguo Co-patentee before: Chen Liming Co-patentee before: Xie Tao Co-patentee before: Cheng Jinsong |
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