CN102810364A - Single-suspension-point double-wire-clamp duplex V-shaped porcelain insulator string for +/-500kV common-tower double-circuit lines - Google Patents
Single-suspension-point double-wire-clamp duplex V-shaped porcelain insulator string for +/-500kV common-tower double-circuit lines Download PDFInfo
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- CN102810364A CN102810364A CN2012102702122A CN201210270212A CN102810364A CN 102810364 A CN102810364 A CN 102810364A CN 2012102702122 A CN2012102702122 A CN 2012102702122A CN 201210270212 A CN201210270212 A CN 201210270212A CN 102810364 A CN102810364 A CN 102810364A
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Abstract
The invention provides a single-suspension-point double-wire-clamp duplex V-shaped porcelain insulator string for +/-500kV common-tower double-circuit lines and relates to insulator suspension strings. The requirement of eight-bundled conductors is met by means of spatial combination and connection of four-bundled yoke plates and insulator strings, and unloading of yoke plates after deflection along wires and proneness to blockage of insulators in deicing skipping are avoided. The single-suspension-point double-wire-clamp duplex V-shaped porcelain insulator string comprises two groups of V-shaped suspension insulator strings, one end of each insulator string in each group is connected with the same yoke plate through a ball suspending ring and a right-angled suspending plate sequentially, each yoke plate is sequentially connected with the right-angled suspending plate, a DB-type adjusting plate, a U-shape suspending ring and EB suspending point hardware, the other end of each yoke plate is connected with the same LF yoke plate through a bowl-headed suspending plate, and each LF yoke plate is respectively connected with two parallel four-bundled suspension yoke plates through two right-angled suspending plates. The single-suspension-point double-wire-clamp duplex V-shaped porcelain insulator string adopts a single-suspension-point connection mode to meet the requirements on strength and stability of eight-bundled conductors.
Description
Technical field
The present invention relates to a kind of insulator that is used on large capacity transmission circuit string that dangles.
Background technology
Electric armour clamp will stand to ice on the transmission line of long-time running, the baptism of snow, storm; Strong wind, sleet, icing are prone to cause lead to deice faults such as jump, phase fault, lead collision lightning conducter, so electric armour clamp must possess higher mechanical strength and enough coefficient of safetys.The string that dangles is the important gold utensil in the transmission line, bears the wind-force on weight, icing weight and the horizontal direction of vertical direction lead, and the string that dangles of existing ± 500kV transmission line adopts double hanging point under inhomogeneous icing situation; Can occur the situation of a unloading after the suitable line skew of V string, be unfavorable for safe operation, and when deicing jump; Insulator blocks easily; And the existing string that dangles mainly is applicable to conductors on quad bundled, division negligible amounts, yet eight bundle conductors of existing being used for ± 500kV transmission line; Eight suspension clamps are distributed on the eight synthetic division yoke plates of eight division yoke plates or same set of planes; Along with the increase of lead radical and wire diameter, the wind-force of lead deadweight, icing and horizontal direction all increases greatly, adopts eight division yoke plates of plane formula to guarantee that sub-conductor division quantity and spacing can not satisfy ± intensity and the stability requirement of 500kV transmission line; So the global reliability of the string that dangles is not high, need be optimized its structure.
Summary of the invention
The present invention provides, and a kind of ± 500kV common-tower double-return circuit presss from both sides duplex V-type porcelain insulating substring with single hanging point two-wire; Be connected the requirement that realizes eight bundle conductors through the quadripartion yoke plate with the space combining of insulator string, and avoid along meeting appearance one unloading after the line skew and deice the situation that insulator blocks easily when jumping taking place.
For achieving the above object, the present invention takes following technical scheme:
± 500kV common-tower double-return circuit is with single hanging point two-wire folder duplex V-type porcelain insulating substring; Comprise two groups of V-shaped suspension insulators; Every group of suspension insulator is made up of the insulator string of two parallel connections; One end of every insulator string of every group of suspension insulator is connected with same yoke plate through ball-eye, right angle link plate successively, and yoke plate connects right angle link plate, the adjustment of DB type plate, U-shaped link and EB hanging point gold utensil successively; The other end of every insulator string of every group of suspension insulator is connected with same LF yoke plate through socket-clevis eye; Each LF yoke plate connects with two parallel quadripartions yoke plate that dangles respectively through two right angle link plates; On each LF yoke plate grading ring is installed, each quadripartion is dangled and suspension clamp is installed on the yoke plate.
Every insulator string of every group of suspension insulator all is made up of suspension insulator, and DB type adjustment plate can be adjusted the length of every group of suspension insulator.The string that dangles adopts EB hanging point gold utensil to form single hanging point and shaft tower links; The lower end of every group of suspension insulator links through socket-clevis eye, LF yoke plate, right angle link plate and the quadripartion yoke plate that dangles; Being equivalent to duplex closes as a whole; Make and effectively avoid under the inhomogeneous icing operating mode of heavy icing area along a unloading can occurring after the line skew, and can prevent that insulator from blocking deicing when jumping, guaranteed the transmission line safe operation.Two insulator strings of every group of suspension insulator connection in series-parallel merge through the LF yoke plate; Be connected respectively to two quadripartions dangles on the yoke plate with being divided into two again; Dangle four suspension clamps that are used for conductors on quad bundled that yoke plate connected of each quadripartion combine and are used to connect eight bundle conductors; Make the whole stress balance of string that dangles, stability strengthens greatly.
Technique scheme can also be done following improvement: the quadripartion yoke plate that dangles can install the weight sheet additional as required, in the lead folder hole of suspension clamp, also is provided with the preformed lines that protect.
The present invention adopts the connection pattern of single hanging point, makes transmission line safe and reliable to operation, can also satisfy simultaneously ± intensity and the stability requirement of eight bundle conductors of 500kV transmission line, and operation is all safe and reliable under various operating modes.
Description of drawings
Fig. 1 is the structural representation of embodiment;
Fig. 2 is that the A of Fig. 1 is to structural representation.
Description of reference numerals: 1-suspension insulator; The 2-insulator string; The 3-suspension insulator; The 4-ball-eye; 5-right angle link plate; The 6-yoke plate; 7-DB type adjustment plate; 8-U shape link; 9-EB hanging point gold utensil; The 10-socket-clevis eye; The 11-LF yoke plate; The 12-quadripartion yoke plate that dangles; The 13-grading ring; The 14-suspension clamp; 15-weight sheet; The preformed lines that protect of 16-.
Embodiment
Below in conjunction with accompanying drawing and embodiment content of the present invention is described further.
Present embodiment is ± mountain region, the 20mm ice formation JL/G1A-900/75 lead of 500KV common-tower double-return DC transmission engineering is with 4X420kN duplex V-type suspension insulator.When height above sea level is 1000m; Every insulator string of every group of suspension insulator comprises suspension insulator sheet several 40; When height above sea level is 1500m; It is several 42 that every insulator string of every group of suspension insulator comprises the suspension insulator sheet, and when height above sea level is 2000m, every insulator string of every group of suspension insulator comprises suspension insulator sheet several 43.Like Fig. 1, shown in 2; Present embodiment comprises two groups of V-shaped suspension insulators 1; Every group of suspension insulator 1 is made up of the insulator string 2 of two parallel connections; Every insulator string 2 of every group of suspension insulator 1 all is made up of suspension insulator 3, and an end of every insulator string 2 of every group of suspension insulator 1 is connected with same yoke plate 6 through ball-eye 4, right angle link plate 5 successively, and yoke plate 6 connects right angle link plate 5, the adjustment of DB type plate 7, U-shaped link 8 and EB hanging point gold utensil 9 successively; The other end of every insulator string 2 of every group of suspension insulator 1 is connected with same LF yoke plate 11 through socket-clevis eye 10; Each LF yoke plate 11 connects with dangle yoke plate 12 of two parallel quadripartions respectively through two right angle link plates 5; Grading ring 13 is installed on each LF yoke plate 11; Each quadripartion is dangled suspension clamp 14 and weight sheet 15 is installed on the yoke plate 12, in the lead folder hole of suspension clamp, also is provided with the preformed lines 16 that protect.
Claims (3)
1. ± 500kV common-tower double-return circuit is with single hanging point two-wire folder duplex V-type porcelain insulating substring; Comprise two groups of V-shaped suspension insulators; Every group of suspension insulator is made up of the insulator string of two parallel connections; It is characterized in that: an end of every insulator string of every group of suspension insulator is connected with same yoke plate through ball-eye, right angle link plate successively, and yoke plate connects right angle link plate, the adjustment of DB type plate, U-shaped link and EB hanging point gold utensil successively; The other end of every insulator string of every group of suspension insulator is connected with same LF yoke plate through socket-clevis eye; Each LF yoke plate connects with two parallel quadripartions yoke plate that dangles respectively through two right angle link plates; On each LF yoke plate grading ring is installed, each quadripartion is dangled and suspension clamp is installed on the yoke plate.
2. as claimed in claim 1 ± 500kV common-tower double-return circuit is characterized in that with single hanging point two-wire folder duplex V-type porcelain insulating substring: said quadripartion is dangled and the weight sheet is installed on the yoke plate.
3. as claimed in claim 1 ± 500kV common-tower double-return circuit is characterized in that: be provided with the preformed lines that protect in the lead folder hole of said suspension clamp with single hanging point two-wire folder duplex V-type porcelain insulating substring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210270212.2A CN102810364B (en) | 2012-07-31 | 2012-07-31 | ± 500kV multiple-circuit on same tower presss from both sides duplex V-type porcelain insulating substring with single hanging point two-wire |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210270212.2A CN102810364B (en) | 2012-07-31 | 2012-07-31 | ± 500kV multiple-circuit on same tower presss from both sides duplex V-type porcelain insulating substring with single hanging point two-wire |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102810364A true CN102810364A (en) | 2012-12-05 |
| CN102810364B CN102810364B (en) | 2016-08-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210270212.2A Expired - Fee Related CN102810364B (en) | 2012-07-31 | 2012-07-31 | ± 500kV multiple-circuit on same tower presss from both sides duplex V-type porcelain insulating substring with single hanging point two-wire |
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| CN (1) | CN102810364B (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103762045A (en) * | 2013-11-22 | 2014-04-30 | 国家电网公司 | Suspension insulator string for extra-high-voltage alternating current circuit |
| CN104240865A (en) * | 2014-08-26 | 2014-12-24 | 江东金具设备有限公司 | Composite insulator triple Y-shaped overhung string |
| CN106448952A (en) * | 2016-10-12 | 2017-02-22 | 国核电力规划设计研究院 | Y-shaped strain insulator string and strain tower |
| CN106558376A (en) * | 2015-09-29 | 2017-04-05 | 江苏双汇孚泰电气有限公司 | A kind of V-type duplex list hanging point quadripartion suspension string |
| CN111540549A (en) * | 2020-06-09 | 2020-08-14 | 国网河南省电力公司电力科学研究院 | Three-hanging-point ground wire suspension insulator string |
| CN106558376B (en) * | 2015-09-29 | 2024-05-03 | 扬州孚泰电气有限公司 | V-shaped double-linked single-hanging-point four-split hanging string |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009013618A (en) * | 2007-07-03 | 2009-01-22 | Ehime Univ | Vertical mixing accelerating equipment |
| CN202258577U (en) * | 2012-01-13 | 2012-05-30 | 中国电力工程顾问集团华东电力设计院 | Six-linked 550 KN large-tonnage insulator suspension metal fittings string used for extra-high voltage DC large crossing |
| CN202711877U (en) * | 2012-07-31 | 2013-01-30 | 中国南方电网有限责任公司超高压输电公司 | Twin V-shaped porcelain insulator string with single hanging point and two wire clamps for +/-500 kV double-circuit lines on same tower |
-
2012
- 2012-07-31 CN CN201210270212.2A patent/CN102810364B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009013618A (en) * | 2007-07-03 | 2009-01-22 | Ehime Univ | Vertical mixing accelerating equipment |
| CN202258577U (en) * | 2012-01-13 | 2012-05-30 | 中国电力工程顾问集团华东电力设计院 | Six-linked 550 KN large-tonnage insulator suspension metal fittings string used for extra-high voltage DC large crossing |
| CN202711877U (en) * | 2012-07-31 | 2013-01-30 | 中国南方电网有限责任公司超高压输电公司 | Twin V-shaped porcelain insulator string with single hanging point and two wire clamps for +/-500 kV double-circuit lines on same tower |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103762045A (en) * | 2013-11-22 | 2014-04-30 | 国家电网公司 | Suspension insulator string for extra-high-voltage alternating current circuit |
| CN103762045B (en) * | 2013-11-22 | 2017-02-01 | 国家电网公司 | Suspension insulator string for extra-high-voltage alternating current circuit |
| CN104240865A (en) * | 2014-08-26 | 2014-12-24 | 江东金具设备有限公司 | Composite insulator triple Y-shaped overhung string |
| CN106558376A (en) * | 2015-09-29 | 2017-04-05 | 江苏双汇孚泰电气有限公司 | A kind of V-type duplex list hanging point quadripartion suspension string |
| CN106558376B (en) * | 2015-09-29 | 2024-05-03 | 扬州孚泰电气有限公司 | V-shaped double-linked single-hanging-point four-split hanging string |
| CN106448952A (en) * | 2016-10-12 | 2017-02-22 | 国核电力规划设计研究院 | Y-shaped strain insulator string and strain tower |
| CN111540549A (en) * | 2020-06-09 | 2020-08-14 | 国网河南省电力公司电力科学研究院 | Three-hanging-point ground wire suspension insulator string |
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| Publication number | Publication date |
|---|---|
| CN102810364B (en) | 2016-08-17 |
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| C06 | Publication | ||
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| CB02 | Change of applicant information |
Address after: 510620 Tianhe Road 116, Guangdong, Guangzhou Applicant after: Super-High Transmission Co., China South Electric-Net Co., Ltd. Applicant after: China Power Engineering Consulting Group Southwest Electric Power Design Institute Co., Ltd. Applicant after: Guizhou Electric Power Design Institute Applicant after: Chengdu Electric Power Fittings General Factory Address before: 510620 Tianhe Road 116, Guangdong, Guangzhou Applicant before: Super-High Transmission Co., China South Electric-Net Co., Ltd. Applicant before: Southwest Electric Power Design Institute of China Power Engineering Consulting Group Corporation Applicant before: Guizhou Electric Power Design Institute Applicant before: Chengdu Electric Power Fittings General Factory |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160817 Termination date: 20170731 |
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| CF01 | Termination of patent right due to non-payment of annual fee |