CN102810364B - ± 500kV multiple-circuit on same tower presss from both sides duplex V-type porcelain insulating substring with single hanging point two-wire - Google Patents
± 500kV multiple-circuit on same tower presss from both sides duplex V-type porcelain insulating substring with single hanging point two-wire Download PDFInfo
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- CN102810364B CN102810364B CN201210270212.2A CN201210270212A CN102810364B CN 102810364 B CN102810364 B CN 102810364B CN 201210270212 A CN201210270212 A CN 201210270212A CN 102810364 B CN102810364 B CN 102810364B
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Abstract
The present invention provides one ± 500kV multiple-circuit on same tower single hanging point two-wire folder duplex V-type porcelain insulating substring, relate to insulator suspension string, it is connected the requirement realizing eight split conductors by quadripartion yoke plate with the spatial organization of insulator chain, and the situation that when there will be a unloading and ice-shedding after avoiding fair line skew, insulator easily blocks occurs.Including two groups of V-shaped suspension insulators, the one end of every the insulator chain often organizing suspension insulator passes sequentially through ball-eye, right angle link plate is connected with same yoke plate, and yoke plate is sequentially connected with right angle link plate, DB type adjustment plate, U-shaped link and EB hardware；The other end is connected with same LF yoke plate by socket-clevis eye, and each LF yoke plate passes through two right angle link plate quadripartion hanging yoke plates parallel with two respectively and connects.The present invention uses the connection pattern of single hanging point, the intensity of eight split conductors and stability requirement.
Description
Technical field
The present invention relates to a kind of insulator suspension string on large capacity transmission circuit.
Background technology
Electric armour clamp is the baptism of ice to be stood, snow, storm on the transmission line of electricity of longtime running, strong wind, sleet, icing
Being easily caused the faults such as wire ice-shedding, phase fault, wire collision lightning conducter, therefore electric armour clamp must possess higher machine
Tool intensity and enough safety coefficients.Suspension string is the important gold utensil in transmission line of electricity, bears the weight of vertical direction wire, covers
Wind-force in ice weight and horizontal direction, the suspension string of existing ± 500kV transmission line of electricity uses double hanging point in uneven icing feelings
Under condition, there will be the situation of a unloading after V string fair line skew, be unfavorable for safe operation, and when ice-shedding, insulation
Son easily blocks, and existing suspension string is primarily adapted for use in conductors on quad bundled, divides negligible amounts, but is currently used for ± 500kV
Eight split conductors of transmission line of electricity, on the eight division yoke plates that eight suspension clamps are distributed in eight division yoke plates or same plane is combined into,
Along with wire radical and the increase of wire diameter, the wind-force of wire deadweight, icing and horizontal direction is all greatly increased, and uses flat
Facial eight division yoke plates ensure that sub-conductor division quantity and spacing can not meet ± the intensity of 500kV transmission line of electricity and steady
Qualitative requirement, therefore the global reliability of suspension string is the highest, needs to be optimized its structure.
Summary of the invention
The present invention provides one ± 500kV multiple-circuit on same tower single hanging point two-wire folder duplex V-type porcelain insulating substring, by four points
Split yoke plate and be connected the requirement realizing eight split conductors with the spatial organization of insulator chain, and avoid fair line to there will be one after offseting
The situation that when connection unloading and ice-shedding, insulator easily blocks occurs.
For reaching above-mentioned purpose, the present invention takes following technical scheme:
± 500kV multiple-circuit on same tower is with single hanging point two-wire folder duplex V-type porcelain insulating substring, exhausted including two groups of V-shaped pendencys
Edge substring, often group suspension insulator is made up of two insulator chains in parallel, often organizes every insulator chain of suspension insulator
One end pass sequentially through ball-eye, right angle link plate is connected with same yoke plate, yoke plate be sequentially connected with right angle link plate, DB type adjustment plate,
U-shaped link and EB hardware；The other end of every the insulator chain often organizing suspension insulator passes through socket-clevis eye with same
LF yoke plate connects, and each LF yoke plate passes through two right angle link plate quadripartion hanging yoke plates parallel with two respectively and connects, each
Grading ring is installed on LF yoke plate, each quadripartion hanging yoke plate is installed suspension clamp.
Every the insulator chain often organizing suspension insulator is all made up of suspension insulator, and DB type adjustment plate adjustable often organizes pendency absolutely
The length of edge substring.Suspension string uses EB hardware to form single hanging point and is connected with shaft tower, and the lower end often organizing suspension insulator leads to
Cross socket-clevis eye, LF yoke plate, right angle link plate and quadripartion hanging yoke plate to be connected, be equivalent to duplex and be combined into an entirety so that
There will be a unloading after being prevented effectively from fair line skew under heavy icing area uneven icing operating mode, and be prevented from when ice-shedding
Insulator blocks, it is ensured that transmission line of electricity safe operation.Often two insulator chains of group suspension insulator connection in series-parallel are by LF yoke plate
Merging, then be divided into two and be connected respectively on two quadripartion hanging yoke plates, what each quadripartion hanging yoke plate was connected is used for
Four suspension clamps of conductors on quad bundled combine for connecting eight split conductors, make suspension string entirety stress balance, stability
It is greatly enhanced.
Technique scheme can also be improved as follows: quadripartion hanging yoke plate can install heavy punch piece as required additional, at suspension clamp
Wire folder hole in be additionally provided with and preformed protect lines.
The present invention uses the connection pattern of single hanging point, makes transmission line of electricity safe and reliable to operation, can also meet ± 500kV is defeated. simultaneously
The intensity of eight split conductors of electric line and stability requirement, run the most safe and reliable under various operating modes.
Accompanying drawing explanation
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；2-insulator chain；3-suspension insulator；4-ball-eye；5-right angle hangs
Plate；6-yoke plate；7-DB type adjustment plate；8-U shape link；9-EB hardware；10-socket-clevis eye；11-LF yoke plate；12-
Quadripartion hanging yoke plate；13-grading ring；14-suspension clamp；15-heavy punch piece；16-is preformed protects lines.
Detailed description of the invention
With embodiment, present invention is described further below in conjunction with the accompanying drawings.
The present embodiment is ± mountain region, the 20mm ice formation JL/G1A-900/75 wire of 500KV common-tower double-return DC transmission engineering uses
4X420kN duplex V-type suspension insulator.When height above sea level is 1000m, often organize every insulator chain bag of suspension insulator
Containing suspension insulator sub-pieces number 40, when height above sea level is 1500m, often organizing every insulator chain of suspension insulator, to comprise suspension type exhausted
Edge sub-pieces number 42, when height above sea level is 2000m, every the insulator chain often organizing suspension insulator comprises suspension insulator sub-pieces number
43.As shown in Figure 1, 2, the present embodiment includes two groups of V-shaped suspension insulators 1, and often group suspension insulator 1 is by two
The insulator chain 2 of Zhi Binglian forms, and often every insulator chain 2 of group suspension insulator 1 is all made up of suspension insulator 3,
Often one end of every insulator chain 2 of group suspension insulator 1 passes sequentially through ball-eye 4, right angle link plate 5 and same yoke plate 6
Connecting, yoke plate 6 is sequentially connected with right angle link plate 5, DB type adjustment plate 7, U-shaped link 8 and EB hardware 9；Often group is outstanding
The other end of every insulator chain 2 of vertical insulator chain 1 is connected with same LF yoke plate 11 by socket-clevis eye 10, each LF
Yoke plate 11 passes through two right angle link plate 5 quadripartion hanging yoke plates 12 parallel with two respectively and connects, on each LF yoke plate 11
Grading ring 13 is installed, each quadripartion hanging yoke plate 12 is installed suspension clamp 14 and heavy punch piece 15, at the wire of suspension clamp
It is additionally provided with in folder hole and preformed protects lines 16.
Claims (3)
1. ± 500kV multiple-circuit on same tower is with single hanging point two-wire folder duplex V-type porcelain insulating substring, including two groups of V-shaped suspension insulators,
Often group suspension insulator is made up of two insulator chains in parallel, it is characterized in that: often organize one end of every insulator chain of suspension insulator successively
Being connected with same yoke plate by ball-eye, right angle link plate, yoke plate is sequentially connected with right angle link plate, DB type adjustment plate, U-shaped link and EB hanging point
Gold utensil；The other end of every the insulator chain often organizing suspension insulator is connected with same LF yoke plate by socket-clevis eye, and each LF yoke plate passes through two
The quadripartion hanging yoke plate connection that individual right angle link plate is parallel with two respectively, each LF yoke plate is installed grading ring, each quadripartion hanging yoke plate is pacified
Dress suspension clamp, often two insulator chains of group suspension insulator connection in series-parallel are merged by LF yoke plate, then are divided into two and are connected respectively to two four
On splitting hanging yoke plate, four suspension clamps for conductors on quad bundled that each quadripartion hanging yoke plate is connected combine for connecting eight divisions
Wire；DB type adjustment plate adjustable often organizes the length of suspension insulator；Suspension string uses EB hardware to form single hanging point and is connected with shaft tower.
2. as claimed in claim 1 ± 500kV multiple-circuit on same tower is with single hanging point two-wire folder duplex V-type porcelain insulating substring, it is characterized in that: described
On quadripartion hanging yoke plate, heavy punch piece is installed.
3. as claimed in claim 1 ± 500kV multiple-circuit on same tower is with single hanging point two-wire folder duplex V-type porcelain insulating substring, it is characterized in that: described
It is provided with in the wire folder hole of suspension clamp and preformed protects lines.
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 CN102810364A (en) | 2012-12-05 |
| CN102810364B true CN102810364B (en) | 2016-08-17 |
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Family Applications (1)
| 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) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| 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 |
| CN106448952B (en) * | 2016-10-12 | 2017-08-11 | 国核电力规划设计研究院 | Y types strain insulator string and anchor support |
| 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 |
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 |
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| CN102810364A (en) | 2012-12-05 |
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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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Granted publication date: 20160817 Termination date: 20170731 |
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| CF01 | Termination of patent right due to non-payment of annual fee |