CN102005712A - 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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- CN102005712A CN102005712A CN 201010516570 CN201010516570A CN102005712A CN 102005712 A CN102005712 A CN 102005712A CN 201010516570 CN201010516570 CN 201010516570 CN 201010516570 A CN201010516570 A CN 201010516570A CN 102005712 A CN102005712 A CN 102005712A
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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 the overhead transmission line iron tower, 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 level around the strained angled tower of jumping.
Background technology is present, and it is more and more serious that China's high pressure, superhigh pressure, ultra high voltage overhead transmission line corridor take up an area of problem, and especially in the developed area, the corridor resource problem is more outstanding.In many local locations, it is very crowded that the 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 down around jumping, and the interfloor distance between the lead cross-arm of installing on the tower head is big, and lead cross-arm, ground wire cross-arm are very long, and the project cost height of strained angled tower, investment are big.
Studies show that same-tower same-window double-loop compact transmission line self-support tangent tower can effectively address the above problem.With the 750kV circuit is example, and this self-support tangent tower will twoly return the 750kV circuit and combine within the same tower window, and two loop lines place the circuit both sides respectively 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 lead, 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 a kind of tower head transversary compactness, 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 level around 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 two leads that return simultaneously.
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 a level around the strained angled tower of jumping, and comprises the iron tower tower head, and body of the tower is positioned at the ground wire cross-arm at tower head top, upper, middle and lower lead cross-arm, synthetic insulator gold utensil string; It is characterized in that: it also comprises auxiliary cross-arm; The both sides of ground wire cross-arm hang one group of ground wire respectively, 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 fixedly connected; Ground wire cross-arm below is separately installed with upper conductor cross-arm, middle lead cross-arm and lower wire cross-arm from top to bottom on the tower head, the both sides of upper conductor cross-arm, middle lead cross-arm and lower wire cross-arm hang a phase conductor respectively, each phase conductor wire jumper respectively to iron tower outside level around jumping, auxiliary cross-arm is positioned at lower wire cross-arm below, fixedlys connected with auxiliary cross-arm in the lower end that respectively is combined into the insulator hardware string.
Last phase, middle phase, the lead wire jumper of phase conductor is supporting respectively down that corresponding wire jumper supporter arranged, the lead wire jumper of last phase, middle phase, following phase conductor is fixed in corresponding wire jumper supporter, be that upper conductor wire jumper, middle lead wire jumper and lower wire wire jumper are individually fixed in wire jumper supporter, middle wire jumper supporter and following wire jumper supporter, the two ends of each wire jumper supporter are fixedly connected by synthetic insulator gold utensil string.
Whenever being combined into the insulator hardware string is made up of four sections synthetic insulator gold utensil strings that are positioned on the vertical line; First section synthetic insulator gold utensil string upper end is fixedly connected on the secondary cross-arm of ground wire, and the lower end is fixedly connected on the wire jumper supporter; Second section synthetic insulator gold utensil string upper end is fixedly connected on the wire jumper supporter, and the lower end is fixedly connected on middle wire jumper supporter; Wire jumper supporter during the 3rd section synthetic insulator gold utensil string upper end is fixedly connected on, the lower end is fixedly connected on down the wire jumper supporter; The 4th section synthetic insulator gold utensil string upper end is fixedly connected on down the wire jumper supporter, 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 because of each phase conductor wire jumper respectively to iron tower outside level around jumping, tower head vertical structure compactness, the mutual distance of upper conductor cross-arm, middle lead cross-arm and lower wire cross-arm is little, the interfloor distance that is each phase conductor of upper, middle and lower and lead 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, promptly 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 lead 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 lead 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, with six phase wire jumpers of conventional double-circuit line strained angled tower all by different entirely around finishing down.Because six phase wire jumpers of conventional double-circuit line strained angled tower all by down around jumping, cause its lead cross-arm, ground wire cross-arm very long, the interfloor distance between the lead cross-arm is very big.
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, iron tower weight will alleviate about 30 percent; Therefore, the engineering cost of single basic iron 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 lead cross-arm, but lacked a lot, realized level around the negative shielding angle of jumping wire jumper easily than the ground wire cross-arm of conventional double-circuit line strained angled tower of the same type.Therefore, the lightning protection properties of iron tower of the present invention is good.
6, the present invention has extensive 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 a 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-iron tower tower head, 2-body of the tower, 3-upper conductor cross-arm, lead 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, first section synthetic insulator gold utensil of 91-string, second section synthetic insulator gold utensil of 92-string, the 3rd section synthetic insulator gold utensil string of 93-, the 4th section synthetic insulator gold utensil string of 94-, the last phase conductor of 10-, phase conductor among the 11-, phase conductor under the 12-, 13-upper conductor wire jumper, lead wire jumper among the 14-, 15-lower wire wire jumper, 16-assists cross-arm, 17-wire tension-resistant insulator hardware string, 18-wire jumper supporter, the last wire jumper supporter of 181-, wire jumper supporter among the 182-, wire jumper supporter 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 a level around the strained angled tower of jumping, comprise iron tower tower head 1, body of the tower 2, be positioned at the ground wire cross-arm 6 at iron tower tower head 1 top, upper conductor cross-arm 3, middle lead cross-arm 4 and lower wire cross-arm 5, synthetic insulator gold utensil string 9; It also comprises auxiliary cross-arm 16; The both sides of ground wire cross-arm 6 hang one group of ground wire 7 respectively, 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 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 lead cross-arm 4 and lower wire cross-arm 5 from top to bottom;
The structure of auxiliary cross-arm 16 and the structure and the identical (not shown) of specification of ground wire cross-arm 6, promptly 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 fixedly connected with one respectively.
As shown in Figure 4: go up phase, middle phase, the lead wire jumper of phase conductor is supporting respectively down that corresponding wire jumper supporter 18 arranged, promptly upper conductor wire jumper 13, middle lead wire jumper 14 and lower wire wire jumper 15 are supporting respectively last wire jumper supporter 181, middle wire jumper supporter 182 and a following wire jumper supporter 183;
Upper conductor wire jumper 13, middle lead wire jumper 14 and lower wire wire jumper 15 are fixed in corresponding wire jumper supporter 18, be that upper conductor wire jumper 13, middle lead wire jumper 1 are individually fixed in wire jumper supporter 181, middle wire jumper supporter 182 and following wire jumper supporter 183 with lower wire wire jumper 15, the two ends of each wire jumper supporter 18 are fixedly connected by synthetic insulator gold utensil string 9.
Claims (8)
- A double-loop compact transmission line wire jumper be level around the angle tower of jumping, comprise the iron tower tower head, body of the tower is positioned at the ground wire cross-arm at iron tower tower head top, upper conductor cross-arm, middle lead cross-arm and lower wire cross-arm, synthetic insulator gold utensil string; It is characterized in that: it also comprises auxiliary cross-arm (16); The both sides of described ground wire cross-arm (6) hang one group of ground wire (7) respectively, the two ends of described ground wire cross-arm (6) are installed with the secondary cross-arm (8) of ground wire, fixedly connected with one group of described synthetic insulator gold utensil string (9) upper end respectively in the two ends of each secondary cross-arm of described ground wire (8); 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, lead cross-arm (4) and described lower wire cross-arm (5) in described, described upper conductor cross-arm (3) both sides hang phase conductor (10) respectively, phase conductor (11) during lead cross-arm (4) both sides hang respectively in described, described lower wire cross-arm (5) both sides hang down phase conductor (12) respectively, the described upper conductor wire jumper (13) of going up phase conductor (10), the lower wire wire jumper of the middle lead wire jumper (14) of phase conductor (11) and described down phase conductor (12) in described (150 respectively outside iron tower level around jumping; Described auxiliary cross-arm (16) is positioned at described lower wire cross-arm (5) below, fixedlys connected with described auxiliary cross-arm (16) in the lower end of four groups of described synthetic insulator gold utensil strings (9).
- 2. a kind of double-loop compact transmission line wire jumper according to claim 1 is a level around the angle tower of jumping, and it is characterized in that: described upper conductor wire jumper (13), lead wire jumper (14) and described lower wire wire jumper (15) are supporting respectively in described that last wire jumper supporter (181), middle wire jumper supporter (182) and following wire jumper supporter (183) arranged; Described upper conductor wire jumper (13), described in lead wire jumper (14) and described lower wire wire jumper (15) be individually fixed in described go up wire jumper supporter (181), described in wire jumper supporter (182) and described wire jumper supporter (183) down, the two ends of each wire jumper supporter are fixedly connected by described synthetic insulator gold utensil string (9).
- 3. a kind of double-loop compact transmission line wire jumper according to claim 2 is the angle tower of level around jumping, and it is characterized in that: every group of described synthetic insulator gold utensil string (9) is made up of four sections synthetic insulator gold utensil strings that are positioned on the vertical line; First section synthetic insulator gold utensil 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 the described wire jumper supporter (181) of going up; Second section synthetic insulator gold utensil string (92) upper end is fixedly connected on the described wire jumper supporter (181) of going up, and the lower end is fixedly connected on described middle wire jumper supporter (182); The 3rd section synthetic insulator gold utensil string (93) upper end is fixedly connected on described middle wire jumper supporter, and (1820, the lower end is fixedly connected on down wire jumper supporter (183); The 4th section synthetic insulator gold utensil string (94) upper end is fixedly connected on described wire jumper supporter (183) down, and the lower end is fixedly connected on described auxiliary cross-arm (16).
- 4. a kind of double-loop compact transmission line wire jumper according to claim 1 is that level is around the angle tower of jumping, it is characterized in that: described upper conductor cross-arm (3), before described middle lead cross-arm (4) and the described lower wire cross-arm (5), back both sides fixedly are equipped with wire tension-resistant insulator hardware string (17) respectively, 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 lead cross-arm (4) is connected with described middle lead 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 the connection gold utensil.
- 5. a kind of double-loop compact transmission line wire jumper according to claim 1 is that level is around the angle tower of jumping, it is characterized in that: described upper conductor cross-arm (3), described in lead cross-arm (4) identical with the specification length of described lower wire cross-arm (5), the vertical range of interlayer is equal.
- 6. a kind of double-loop compact transmission line wire jumper according to claim 1 is the angle tower of level around jumping, 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 lead cross-arm (4) and described lower wire cross-arm (5).
- 7. be the angle tower of level around jumping according to any described a kind of double-loop compact transmission line wire jumper of claim 1 to 6, it is characterized in that: the structure of described auxiliary cross-arm (16) and specification are identical with the 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; Fixedly connected with one group of described synthetic insulator gold utensil string (9) lower end respectively in the two ends of each described auxiliary secondary cross-arm.
- 8. a kind of double-loop compact transmission line wire jumper according to claim 7 is the angle tower of level around jumping, 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 true CN102005712A (en) | 2011-04-06 |
| CN102005712B CN102005712B (en) | 2013-03-13 |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102296864A (en) * | 2011-05-31 | 2011-12-28 | 国网电力科学研究院 | Novel tower for extra-high voltage dual-circuit compact transmission |
| WO2015058441A1 (en) * | 2013-10-25 | 2015-04-30 | 江苏智达高压电气有限公司 | Compact composite tower without wire dropping |
| 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 |
| CN113363921A (en) * | 2021-06-07 | 2021-09-07 | 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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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102296864A (en) * | 2011-05-31 | 2011-12-28 | 国网电力科学研究院 | Novel tower for extra-high voltage dual-circuit compact transmission |
| WO2015058441A1 (en) * | 2013-10-25 | 2015-04-30 | 江苏智达高压电气有限公司 | Compact composite tower without wire dropping |
| 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 |
| CN113363921A (en) * | 2021-06-07 | 2021-09-07 | 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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