CN102005712B - Strain corner tower with horizontal winding and jumping wire jumper for two-loop compact power transmission line - Google Patents
Strain corner tower with horizontal winding and jumping wire jumper for two-loop compact power transmission line Download PDFInfo
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- CN102005712B CN102005712B CN 201010516570 CN201010516570A CN102005712B CN 102005712 B CN102005712 B CN 102005712B CN 201010516570 CN201010516570 CN 201010516570 CN 201010516570 A CN201010516570 A CN 201010516570A CN 102005712 B CN102005712 B CN 102005712B
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Abstract
The invention discloses a strain corner tower with a horizontal winding and jumping wire jumper for a two-loop compact power transmission line, which comprises an iron tower head, a tower body, a ground wire cross arm, upper, middle and lower lead cross arms, synthesized insulator hardware fitting strings and an auxiliary cross arm, wherein a group of ground wires are suspended on each of the two sides of the ground wire cross arm respectively, a ground wire auxiliary cross arm is fixedly arranged on each of the two ends of the ground wire cross arm, and the two ends of each ground wire cross arm are fixedly connected with the upper end of a set of synthesized insulator hardware fitting string; and the upper lead cross arm, the middle lead cross arm and the lower lead cross arm are arranged below the ground wire cross arm on the tower head from the top to the bottom, two phase leads are suspended on the two ends of each of upper, middle and lower lead cross arms respectively, all phase lead jumpers wind and jump towards the outside of the iron tower, the auxiliary cross arm is positioned below the lower lead cross arm, and the lower end of each set of synthesized insulator hardware fitting string is fixedly connected with the auxiliary cross arm. The strain corner tower has a compact structure, the weight and the engineering cost of the iron tower are reduced by about 30 percent in comparison with the currently used conventional iron tower, and the strain corner tower has high lightning protection performance and is widely used.
Description
Technical field the present invention relates to the power transmission and distribution project field, belongs to iron towers of overhead power transmission lines, relates in particular to a kind ofly to exchange same-tower same-window double-loop compact transmission line to adopt a kind of wire jumper be the strained angled tower that horizontal winding is jumped.
Background technology is present, and it is more and more serious that China's high pressure, superhigh pressure, UHV Overhead Transmission Line corridor take up an area problem, and especially in the developed area, the corridor resource problem is more outstanding.In many local locations, it is very crowded that power transmission line corridor has seemed.The new circuit of power transmission mode construction has become very difficult routinely.How further to compress the circuit width of corridor, save limited land resources, further improve the circuit transmission capacity in the unit corridor, it is crowded to solve the circuit corridor, newly-built circuit is difficult to the conspicuous contradiction of cabling, has become a very urgent and important task of China's high pressure, superhigh pressure, the construction of ultra high voltage AC and DC overhead transmission line.
In addition, six phase wire jumpers of the conventional double-circuit line strained angled tower of present stage all are lower to jumping, and the interfloor distance between the wire cross-arm of installing on the tower head is large, and wire cross-arm, ground wire cross-arm are very long, and the project cost of strained angled tower is high, investment is large.
Studies show that same-tower same-window double-loop compact transmission line self-support tangent tower can effectively address the above problem.Take the 750kV circuit as example, this self-support tangent tower will twoly return the 750kV circuit and combine within the same tower window, and two loop lines place respectively the circuit both sides all by vertical arrangement.The application number that the applicant declares is 200810239196.4 application for a patent for invention, a kind of common phase sequence common-tower common-window dual loop transmission line is disclosed, this power transmission mode, especially same phase sequence, compare with conventional double-circuit line: the one, the circuit corridor has obtained obvious compression.Press the circuit width of corridor of the maximum windage yaw control of wire, than the little 37.3m of conventional double-circuit line, the compression width of corridor is up to 40.1% with phase sequence for common-tower common-window; Be no more than the determined circuit width of corridor of 4kV/m by the ground power frequency electric field, than the little 21m of conventional double-circuit line, the compression width of corridor is also up to 36,9% with phase sequence for common-tower common-window.The 2nd, corona loss can save 11～15%.The 3rd, can also reduce construction investment and improve electromagnetic environment.Superiority is very outstanding.200810239196.4 application for a patent for invention disclosed be self-support tangent tower structure.
The summary of the invention the technical problem to be solved in the present invention is to provide that a kind of tower head transversary is compact, vertically (with the perpendicular direction in ground) compact conformation, project cost is low and lightning protection properties is good same-tower same-window double-loop compact transmission line wire jumper are the strained angled tower of horizontal winding jumping.This strained angled tower can be used in high pressure, superhigh pressure and the UHV transmission line in level land, hills and area, mountain region, and can hang simultaneously two wires that return.
In order to solve the problems of the technologies described above, the present invention is achieved by the following technical solutions.
A kind of double-loop compact transmission line wire jumper is the strained angled tower that horizontal winding is jumped, and comprises the steel tower tower head, and body of the tower is positioned at the ground wire cross-arm at tower head top, upper, middle and lower wire cross-arm, synthetic insulator hardware string; It is characterized in that: it also comprises auxiliary cross-arm; The both sides of ground wire cross-arm hang respectively one group of ground wire, and the two ends of ground wire cross-arm are installed with the secondary cross-arm of ground wire, and the two ends and of the secondary cross-arm of each ground wire are combined into insulator hardware string upper end and are fixedly connected with; Ground wire cross-arm below is separately installed with upper conductor cross-arm, middle wire cross-arm and lower wire cross-arm from top to bottom on the tower head, the both sides of upper conductor cross-arm, middle wire cross-arm and lower wire cross-arm hang respectively a phase conductor, each phase conductor wire jumper is jumped to steel tower outside horizontal winding respectively, auxiliary cross-arm is positioned at lower wire cross-arm below, and the lower end that respectively is combined into the insulator hardware string is fixedly connected with auxiliary cross-arm.
The wire wire jumper of upper phase, middle phase, lower phase conductor is supporting respectively a corresponding jumper wire support body, the wire wire jumper of upper phase, middle phase, lower phase conductor is fixed in corresponding jumper wire support body, be that upper conductor wire jumper, middle wire wire jumper and lower wire wire jumper are individually fixed in jumper wire support body, middle jumper wire support body and lower jumper wire support body, the two ends of each jumper wire support body are fixedly connected with by the synthetic insulator hardware string.
Whenever being combined into the insulator hardware string is comprised of four sections synthetic insulator hardware strings that are positioned on the vertical line; First paragraph synthetic insulator hardware string upper end is fixedly connected on the secondary cross-arm of ground wire, and the lower end is fixedly connected on the jumper wire support body; Second segment synthetic insulator hardware string upper end is fixedly connected on the jumper wire support body, and the lower end is fixedly connected on middle jumper wire support body; The 3rd section synthetic insulator hardware string upper end is fixedly connected on middle jumper wire support body, and the lower end is fixedly connected on lower jumper wire support body; The 4th section synthetic insulator hardware string upper end is fixedly connected on lower jumper wire support body, and the lower end is fixedly connected on auxiliary cross-arm.
The present invention is used for the supporting application of self-support tangent tower with the common phase sequence common-tower common-window dual loop transmission line of 200810239196.4 application for a patent for invention.
The present invention has the following advantages:
1, the present invention jumps to steel tower outside horizontal winding respectively because of each phase conductor wire jumper, the tower head vertical structure is compact, the mutual distance of upper conductor cross-arm, middle wire cross-arm and lower wire cross-arm is little, the interfloor distance that is each phase conductor of upper, middle and lower and wire wire jumper thereof is little, only be with about 2/3rds of vertical range between the conventional double-circuit line strained angled tower of the electric pressure three layer conductor cross-arms, namely can satisfy the specification requirement of high pressure, superhigh pressure, ultra high voltage AC and DC overhead transmission line.
2, the tower head transversary is very compact, and the length of upper conductor cross-arm, middle wire cross-arm and the lower wire cross-arm of installation three (six) phase conductors is all very short; Only be with about 1/3rd of electric pressure conventional line strained angled tower wire cross-arm; The ground wire cross-arm is also short, only is with about 2/3rds of the conventional double-circuit line strained angled tower of electric pressure ground wire cross-arm.
3, the six phase wire jumpers on the present invention two (two) loop line road all be level outwards around jumping, from six phase wire jumpers of conventional double-circuit line strained angled tower all by lower entirely different around finishing.Because six phase wire jumpers of conventional double-circuit line strained angled tower all by lower around jumping, cause its wire cross-arm, ground wire cross-arm very long, the interfloor distance between the wire cross-arm is very large.
4, because horizontal stroke, the vertical structure of its tower head of the present invention are all very compact, and mechanical characteristic is very excellent, compares with conventional double-circuit line strained angled tower of the same type, steel tower weight will alleviate about 30 percent; Therefore, the engineering cost of single basic steel tower also will reduce about 30 percent; Economic benefit is fairly obvious.
5, because ground wire cross-arm of the present invention is longer than wire cross-arm, but lacked much than the ground wire cross-arm of conventional double-circuit line strained angled tower of the same type, realized horizontal winding is jumped easily the negative shielding angle of wire jumper.Therefore, the lightning protection properties of steel tower of the present invention is good.
6, the present invention has widely applicability; Not only level land, knob can be suitable for, and general mountain area and even high mountain high hill also can be suitable for.
Description of drawings Fig. 1 is front schematic view of the present invention,
Fig. 2 is the schematic side view of Fig. 1;
Fig. 3 is the schematic top plan view of Fig. 1;
Fig. 4 is the A-A cross-sectional schematic of Fig. 1.
Among the figure: 1-steel tower tower head, 2-body of the tower, 3-upper conductor cross-arm, wire cross-arm among the 4-, 5-lower wire cross-arm, 6-ground wire cross-arm, the 7-ground wire, the secondary cross-arm of 8-ground wire, 9-synthetic insulator gold utensil hangs string, 91-first paragraph synthetic insulator hardware string, 92-second segment synthetic insulator hardware string, the 3rd section synthetic insulator hardware string of 93-, the 4th section synthetic insulator hardware string of 94-, the upper phase conductor of 10-, phase conductor among the 11-, phase conductor under the 12-, 13-upper conductor wire jumper, wire wire jumper among the 14-, 15-lower wire wire jumper, 16-assists cross-arm, 17-wire tension-resistant insulator hardware string, 18-jumper wire support body, the upper jumper wire support body of 181-, jumper wire support body among the 182-, jumper wire support body under the 183-.
Embodiment Fig. 1 with Figure 2 shows that the present invention is that the double-loop compact transmission line wire jumper is the strained angled tower that horizontal winding is jumped, comprise steel tower tower head 1, body of the tower 2, be positioned at the ground wire cross-arm 6 at steel tower tower head 1 top, upper conductor cross-arm 3, middle wire cross-arm 4 and lower wire cross-arm 5, synthetic insulator hardware string 9; It also comprises auxiliary cross-arm 16; The both sides of ground wire cross-arm 6 hang respectively one group of ground wire 7, and referring to Fig. 3, the two ends of ground wire cross-arm 6 are installed with the secondary cross-arm 8 of ground wire, and totally four ends, the two ends of the secondary cross-arm 8 of each ground wire are combined into insulator hardware string 9 upper ends and are fixedly connected with one respectively; On the tower head 1, ground wire cross-arm 6 belows are separately installed with upper conductor cross-arm 3, middle wire cross-arm 4 and lower wire cross-arm 5 from top to bottom;
The structure of auxiliary cross-arm 16 and structure and the identical (not shown) of specification of ground wire cross-arm 6, namely the two ends of auxiliary cross-arm 16 are installed with auxiliary secondary cross-arm; Totally four ends, the two ends of each auxiliary secondary cross-arm are combined into insulator hardware string 9 lower ends and are fixedly connected with one respectively.
As shown in Figure 4: the wire wire jumper of upper phase, middle phase, lower phase conductor is supporting respectively a corresponding jumper wire support body 18, and namely upper conductor wire jumper 13, middle wire wire jumper 14 and lower wire wire jumper 15 are supporting respectively upper jumper wire support body 181, middle jumper wire support body 182 and a lower jumper wire support body 183;
Upper conductor wire jumper 13, middle wire wire jumper 14 and lower wire wire jumper 15 are fixed in corresponding jumper wire support body 18, be that upper conductor wire jumper 13, middle wire wire jumper 1 are individually fixed in jumper wire support body 181, middle jumper wire support body 182 and lower jumper wire support body 183 with lower wire wire jumper 15, the two ends of each jumper wire support body 18 are fixedly connected with by synthetic insulator hardware string 9.
Claims (6)
1. a double-loop compact transmission line wire jumper is the angle tower that horizontal winding is jumped, and comprises the steel tower tower head, and body of the tower is positioned at the ground wire cross-arm at steel tower tower head top, upper conductor cross-arm, middle wire cross-arm and lower wire cross-arm, synthetic insulator hardware string; It is characterized in that: it also comprises auxiliary cross-arm (16); The both sides of described ground wire cross-arm (6) hang respectively one group of ground wire (7), the two ends of described ground wire cross-arm (6) are installed with the secondary cross-arm (8) of ground wire, and the two ends of each secondary cross-arm of described ground wire (8) are fixedly connected with one group of described synthetic insulator hardware string (9) upper end respectively; On the described tower head (1), described ground wire cross-arm (6) below is separately installed with described upper conductor cross-arm (3) from top to bottom, described middle wire cross-arm (4) and described lower wire cross-arm (5), described upper conductor cross-arm (3) both sides hang respectively phase conductor (10), phase conductor (11) during described middle wire cross-arm (4) both sides hang respectively, described lower wire cross-arm (5) both sides hang respectively lower phase conductor (12), the upper conductor wire jumper (13) of described upper phase conductor (10), the middle wire wire jumper (14) of described middle phase conductor (11) and the lower wire wire jumper (15) of described lower phase conductor (12) are jumped to steel tower outside horizontal winding respectively; Described auxiliary cross-arm (16) is positioned at described lower wire cross-arm (5) below, and the lower end of four groups of described synthetic insulator hardware strings (9) is fixedly connected with described auxiliary cross-arm (16);
Described upper conductor wire jumper (13), described middle wire wire jumper (14) and described lower wire wire jumper (15) are supporting respectively upper jumper wire support body (181), middle jumper wire support body (182) and a lower jumper wire support body (183); Described upper conductor wire jumper (13), described middle wire wire jumper (14) are individually fixed in described upper jumper wire support body (181), described middle jumper wire support body (182) and described lower jumper wire support body (183) with described lower wire wire jumper (15), and the two ends of each jumper wire support body are fixedly connected with by described synthetic insulator hardware string (9);
Every group of described synthetic insulator hardware string (9) is comprised of four sections synthetic insulator hardware strings that are positioned on the vertical line; First paragraph synthetic insulator hardware string (91) upper end is fixedly connected on the secondary cross-arm (8) of described ground wire, and the lower end is fixedly connected on described upper jumper wire support body (181); Second segment synthetic insulator hardware string (92) upper end is fixedly connected on described upper jumper wire support body (181), and the lower end is fixedly connected on described middle jumper wire support body (182); The 3rd section synthetic insulator hardware string (93) upper end is fixedly connected on described middle jumper wire support body (182), and the lower end is fixedly connected on lower jumper wire support body (183); The 4th section synthetic insulator hardware string (94) upper end is fixedly connected on described lower jumper wire support body (183), and the lower end is fixedly connected on described auxiliary cross-arm (16).
2. a kind of double-loop compact transmission line wire jumper according to claim 1 is the angle tower that horizontal winding is jumped, it is characterized in that: described upper conductor cross-arm (3), before described middle wire cross-arm (4) and the described lower wire cross-arm (5), wire tension-resistant insulator hardware string (17) fixedly is equipped with respectively in rear both sides, the other end that is installed on the described wire tension-resistant insulator hardware string (17) of described upper conductor cross-arm (3) is connected with described upper conductor wire jumper (13) by connecting gold utensil, the other end that is installed on the described wire tension-resistant insulator hardware string (17) of described middle wire cross-arm (4) is connected with described middle wire wire jumper (14) by connecting gold utensil, and the other end that is installed on the described wire tension-resistant insulator hardware string (17) of described lower wire cross-arm (5) is connected with described lower wire wire jumper (15) by connecting gold utensil.
3. a kind of double-loop compact transmission line wire jumper according to claim 1 is the angle tower that horizontal winding is jumped, it is characterized in that: described upper conductor cross-arm (3), described middle wire cross-arm (4) are identical with the specification length of described lower wire cross-arm (5), and the vertical range of interlayer equates.
4. a kind of double-loop compact transmission line wire jumper according to claim 1 is the angle tower that horizontal winding is jumped, and it is characterized in that: the length of described ground wire cross-arm (6) is greater than the length of described upper conductor cross-arm (3), described middle wire cross-arm (4) and described lower wire cross-arm (5).
5. be the angle tower of horizontal winding jumping to the described a kind of double-loop compact transmission line wire jumper of 4 any one according to claim 1, it is characterized in that: the structure of described auxiliary cross-arm (16) and specification are identical with structure and the specification of described ground wire cross-arm (6); The two ends of described auxiliary cross-arm (16) are installed with auxiliary secondary cross-arm; The two ends of each described auxiliary secondary cross-arm are fixedly connected with one group of described synthetic insulator hardware string (9) lower end respectively.
6. a kind of double-loop compact transmission line wire jumper according to claim 5 is the angle tower that horizontal winding is jumped, and it is characterized in that: described ground wire (7) hangs on the two ends of described ground wire cross-arm (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010516570 CN102005712B (en) | 2010-10-20 | 2010-10-20 | Strain corner tower with horizontal winding and jumping wire jumper for two-loop compact power transmission line |
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201010516570 CN102005712B (en) | 2010-10-20 | 2010-10-20 | Strain corner tower with horizontal winding and jumping wire jumper for two-loop compact power transmission line |
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| CN102005712A CN102005712A (en) | 2011-04-06 |
| CN102005712B true CN102005712B (en) | 2013-03-13 |
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| CN 201010516570 Active CN102005712B (en) | 2010-10-20 | 2010-10-20 | Strain corner tower with horizontal winding and jumping wire jumper for two-loop compact power transmission line |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102296864B (en) * | 2011-05-31 | 2013-06-05 | 国网电力科学研究院 | Novel tower for extra-high voltage dual-circuit compact transmission |
| CN203531484U (en) * | 2013-10-25 | 2014-04-09 | 江苏智达高压电气有限公司 | Line-dropping-prevention compact type composite tower |
| 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 |
| CN110374389A (en) * | 2019-07-05 | 2019-10-25 | 江苏神马电力股份有限公司 | A kind of angle tower |
| CN110390156A (en) * | 2019-07-16 | 2019-10-29 | 浙江大学 | The acquisition methods of transmission line of electricity pulsation wind-excited responese under mountain environment |
| CN113363921B (en) * | 2021-06-07 | 2022-10-28 | 国核电力规划设计研究院有限公司 | Connecting structure and connecting method for single-side pi connection of same-tower multi-circuit overhead transmission line |
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| CN101672124A (en) * | 2009-09-25 | 2010-03-17 | 国网电力科学研究院 | Compound material pole tower |
| CN101692545A (en) * | 2009-09-08 | 2010-04-07 | 国网电力科学研究院 | Vertically grounding down-leading method for internal side of composite material tower and tower thereof |
| CN201507141U (en) * | 2009-09-27 | 2010-06-16 | 国网电力科学研究院 | Composite insulating pole tower for power transmission line |
| CN201821070U (en) * | 2010-10-20 | 2011-05-04 | 甘肃省电力设计院 | Double-circuit compact type angle tower with horizontally-wound and jumped jumper wire of transmission wire |
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| CN101692545A (en) * | 2009-09-08 | 2010-04-07 | 国网电力科学研究院 | Vertically grounding down-leading method for internal side of composite material tower and tower thereof |
| CN101672124A (en) * | 2009-09-25 | 2010-03-17 | 国网电力科学研究院 | Compound material pole tower |
| CN201507141U (en) * | 2009-09-27 | 2010-06-16 | 国网电力科学研究院 | Composite insulating pole tower for power transmission line |
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