CN101834040A - Specially synthetic insulator of transmission line of 220kV - Google Patents
Specially synthetic insulator of transmission line of 220kV Download PDFInfo
- Publication number
- CN101834040A CN101834040A CN201010173612A CN201010173612A CN101834040A CN 101834040 A CN101834040 A CN 101834040A CN 201010173612 A CN201010173612 A CN 201010173612A CN 201010173612 A CN201010173612 A CN 201010173612A CN 101834040 A CN101834040 A CN 101834040A
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- Prior art keywords
- insulator
- silicon rubber
- transmission line
- full skirt
- ice
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- Pending
Links
- 239000012212 insulator Substances 0.000 title claims abstract description 37
- 230000005540 biological transmission Effects 0.000 title claims abstract description 14
- 229920002379 silicone rubber Polymers 0.000 claims abstract description 14
- 239000004593 Epoxy Substances 0.000 claims description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 13
- 230000000694 effects Effects 0.000 abstract description 4
- 230000008018 melting Effects 0.000 abstract 2
- 238000002844 melting Methods 0.000 abstract 2
- 239000003822 epoxy resin Substances 0.000 abstract 1
- 229920000647 polyepoxide Polymers 0.000 abstract 1
- 229920005989 resin Polymers 0.000 abstract 1
- 239000011347 resin Substances 0.000 abstract 1
- 230000008014 freezing Effects 0.000 description 3
- 238000007710 freezing Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 239000013078 crystal Substances 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 208000028659 discharge Diseases 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 239000003792 electrolyte Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000010309 melting process Methods 0.000 description 1
- 239000003595 mist Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 210000003205 muscle Anatomy 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000004781 supercooling Methods 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
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Abstract
The invention relates to a specially synthetic insulator of a transmission line of 220kV, solving the problems of water curtain formed by melting ice with high electrical conductivity and flashover passage formed by the outer surface of an insulator string. The specially synthetic insulator of the transmission line of 220kV is characterized in that a ball socket (1) is connected with an epoxy resin rod (2) which is connected in series with three groups of silicon rubber umbrella skirts, the end of the resin rod (2) is connected in series with an equalizing ring (5) and a ball head (6), a large-disc silicon rubber large umbrella skirt (3) which is larger than a common silicon rubber umbrella skirt (4) and has a diameter of 300mm is arranged at the top of each group of silicon rubber umbrella skirt, and the large umbrella skirts are separated at a distance of 705mm. The invention can prevent melting ice with high electrical conductivity from forming a water curtain, prevent a flashover passage from being formed on the outer surface of the insulator, has the advantages of flexible operation, practicability and obvious effect and is suitable as the insulator of the transmission line of 220kV.
Description
Technical field:
The present invention is specifically related to a kind of 220kV specially synthetic insulator of transmission line, belongs to the technical field of preventing ice coating in electric transmission line, is adapted to the electric transmission line isolator into 220k.
Background technology:
Known to the inventor, in icing season, the filthy material in the ice-covering area atmosphere accumulates in insulator surface dual mode at present; The one, dunghill has been deposited on the composite insulation sub-surface before icing, and the 2nd, water in suspension vapour has dissolved or has caught airborne small conducting particles before freezing, and by filthy, has higher conductance before both the supercooling water droplet has freezed.For latter event, water droplet has been caught in freezing process or the conductive impurity that dissolves has " crystalline substance is released effect ", when promptly freezing in the water impurity released on the ice crystal surface by row.Therefore, no matter belong to which kind of contamination mode, the electrolyte of the moisture film of ice body surface or ice crystal surface in can very fast dissolving dunghill in deicing processes, and improve the conductance of ice-melt or ice face moisture film, thus reduce the flashover voltage of icing insulator string.Line insulator string icing flashover fault causes a significant threat the safe operation of circuit.Especially be positioned at the unusual mountain of climate change, hills and belong to the higher watershed of two meteorologic district intersection height above sea level and the overhead line structures at place, air port and filth comparatively serious area ice sudden strain of a muscle accident all takes place especially easily.
The distortion that icing insulator string voltage distributes is to cause icing the main cause that the wet lightning of lightning pressure ratio forces down.And the degree of the height of icing surface moisture film conductance and the most advanced and sophisticated streamer formula corona pulse frequency of ice slush and intensity decision discharge development.Can intermittent white arc develop into stablizes the essential condition that white arc is the formation flashover.When being in the ice-melt state by the insulator string of ice slush bridge joint, the ice-melt water that conductivity is high forms " cascade ", causes forming the flashover passage between the insulator string shirt rim, thereby causes the generation of icing insulator string flashover.Therefore, blocking-up insulator string shirt rim ice-melt water forms cascade, is a kind of effective ways that prevent that ice insulator from dodging.
Summary of the invention:
Purpose of the present invention is exactly for remedying above deficiency, and a kind of ice-melt water of high conductivity that stops that provides forms " cascade ", prevents a kind of 220kV specially synthetic insulator of transmission line of insulator string outer surface composition flashover passage.
The present invention adopts following technology path to realize: described a kind of 220kV specially synthetic insulator of transmission line structure is that a bowl head (1) is set, bowl head (1) is gone up and is connected an epoxy rods (2), three groups of silicon rubber full skirts of epoxy rods (2) series connection, at epoxy rods (2) termination serial connection grading ring (5) and bulb (6), the top that it is characterized in that every group of silicon rubber full skirt is provided with one greater than the common full skirt of silicon rubber (4), diameter is 300 millimeters the big full skirt of deep bid full skirt silicon rubber (3), the spacing distance of big full skirt is 705 millimeters, and big full skirt is arranged at the 1st respectively, 8,15 joint insulator places.Be embodied on the former common insulator basis the 1st, 8,15 joint insulators are replaced with especially big full skirt, the deep bid full skirt is arranged in insulator string at interval, strengthen the distance of ice-melt water at insulator, thereby preventing that the insulator string outer skirt from forming continuously avoids bunchiness, becomes curtain when " cascade " and water droplet fall, cause " ice dodges ", in addition the effect of well preventing has also been played in the generation of mist arcing fault.The operation practice shows, intercept the cascade of the high ice-melt water formation flashover passage of conductance, be to improve basic measures and the method that icing ice insulator lightning is pressed, field observation icing season is in dense fog, sleety weather situation following time, because the ice slush of insulator string icing is separated into several parts, and do not form the bridge joint path, and work as ice slush in melting process, flashover does not take place in insulator string.
A kind of 220kV specially synthetic insulator of transmission line of the present invention has the ice-melt water that can stop high conductivity and forms " cascade ", prevents that the insulator string outer surface from forming the flashover passage, and simple and direct economy, work flexibly, the advantage of practicality and effect.
Description of drawings:
Accompanying drawing is a kind of 220kV specially synthetic insulator of transmission line structure chart
Among the figure: 1. bowl head, 2. epoxy rods, the 3. big full skirt of silicon rubber, the 4. common full skirt of silicon rubber, 5. grading ring, 6. bulb
Embodiment:
The present invention is described in further detail below in conjunction with accompanying drawing, embodiment, a kind of 220kV specially synthetic insulator of transmission line as shown in the figure, first insulator replaces with the deep bid full skirt of 300 millimeters of diameters under the elbow of common synthetic insulator, then the 705 millimeters deep bid full skirts of replacing two same sizes again in interval.
Claims (1)
1. 220kV specially synthetic insulator of transmission line, structure is that a bowl head (1) is set, bowl head (1) is gone up and is connected an epoxy rods (2), three groups of silicon rubber full skirts of epoxy rods (2) series connection, at epoxy rods (2) termination serial connection grading ring (5) and bulb (6), the top that it is characterized in that every group of silicon rubber full skirt is provided with one greater than the common full skirt of silicon rubber (4), diameter is 300 millimeters the big full skirt of deep bid full skirt silicon rubber (3), the spacing distance of big full skirt is 705 millimeters, and big full skirt is arranged at the 1st, 8,15 joint insulator places respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010173612A CN101834040A (en) | 2010-04-26 | 2010-04-26 | Specially synthetic insulator of transmission line of 220kV |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010173612A CN101834040A (en) | 2010-04-26 | 2010-04-26 | Specially synthetic insulator of transmission line of 220kV |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101834040A true CN101834040A (en) | 2010-09-15 |
Family
ID=42718078
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010173612A Pending CN101834040A (en) | 2010-04-26 | 2010-04-26 | Specially synthetic insulator of transmission line of 220kV |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101834040A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103559964A (en) * | 2013-11-02 | 2014-02-05 | 国家电网公司 | 500kV-voltage-level anti-icing composite insulator |
| CN103559963A (en) * | 2013-11-02 | 2014-02-05 | 国家电网公司 | 220kV-voltage-level anti-icing composite insulator |
| CN105650368A (en) * | 2014-11-20 | 2016-06-08 | 国家电网公司 | High-pressure insulating water tube |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1289131A (en) * | 2000-10-27 | 2001-03-28 | 清华大学 | Umbrella structure of composite insulator |
| JP3445454B2 (en) * | 1996-11-14 | 2003-09-08 | 日本碍子株式会社 | Composite insulator |
| CN201191544Y (en) * | 2008-03-04 | 2009-02-04 | 华北电力科学研究院有限责任公司 | Pollution flashover preventing insulator device |
| CN201226281Y (en) * | 2008-06-27 | 2009-04-22 | 陕西电力科学研究院 | 110kV anti-ice-flashing composite insulator string |
| CN201402682Y (en) * | 2009-05-15 | 2010-02-10 | 东莞市高能电气股份有限公司 | plus 1000kV UHVDC composite insulator |
| CN201689748U (en) * | 2010-04-26 | 2010-12-29 | 山西省电力公司阳泉供电分公司 | Special composite insulator for 220kV transmission line |
-
2010
- 2010-04-26 CN CN201010173612A patent/CN101834040A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3445454B2 (en) * | 1996-11-14 | 2003-09-08 | 日本碍子株式会社 | Composite insulator |
| CN1289131A (en) * | 2000-10-27 | 2001-03-28 | 清华大学 | Umbrella structure of composite insulator |
| CN201191544Y (en) * | 2008-03-04 | 2009-02-04 | 华北电力科学研究院有限责任公司 | Pollution flashover preventing insulator device |
| CN201226281Y (en) * | 2008-06-27 | 2009-04-22 | 陕西电力科学研究院 | 110kV anti-ice-flashing composite insulator string |
| CN201402682Y (en) * | 2009-05-15 | 2010-02-10 | 东莞市高能电气股份有限公司 | plus 1000kV UHVDC composite insulator |
| CN201689748U (en) * | 2010-04-26 | 2010-12-29 | 山西省电力公司阳泉供电分公司 | Special composite insulator for 220kV transmission line |
Non-Patent Citations (3)
| Title |
|---|
| 关志成,刘瑛岩,周远翔等: "《绝缘子及输变电设备外绝缘》", 31 January 2006, article "场强分布于均压环", pages: 305 * |
| 孙振,王建国,谢从珍等: "110～500kV复合绝缘子的雷电闪络特性", 《电网技术》, vol. 32, no. 16, 20 August 2008 (2008-08-20) * |
| 蒋兴良,舒立春,孙才新: "《电力系统污秽与覆冰绝缘》", 30 September 2009, article "复合绝缘子及其在防污闪中的应用", pages: 242-243 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103559964A (en) * | 2013-11-02 | 2014-02-05 | 国家电网公司 | 500kV-voltage-level anti-icing composite insulator |
| CN103559963A (en) * | 2013-11-02 | 2014-02-05 | 国家电网公司 | 220kV-voltage-level anti-icing composite insulator |
| CN105650368A (en) * | 2014-11-20 | 2016-06-08 | 国家电网公司 | High-pressure insulating water tube |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| ASS | Succession or assignment of patent right |
Owner name: STATE ELECTRIC NET CROP. Effective date: 20130606 |
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| C41 | Transfer of patent application or patent right or utility model | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20130606 Address after: 045000 No. 10 Desheng East Street, Shanxi, Yangquan Applicant after: Shanxi Electric Power Co., Ltd. Yangquan Power Supply Branch Applicant after: State Grid Corporation of China Address before: 045000 No. 10 Desheng East Street, Shanxi, Yangquan Applicant before: Shanxi Electric Power Co., Ltd. Yangquan Power Supply Branch |
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| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20100915 |