CN102709011A - Icing flashover preventing compound insulated lightning arrester - Google Patents
Icing flashover preventing compound insulated lightning arrester Download PDFInfo
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- CN102709011A CN102709011A CN2012101780321A CN201210178032A CN102709011A CN 102709011 A CN102709011 A CN 102709011A CN 2012101780321 A CN2012101780321 A CN 2012101780321A CN 201210178032 A CN201210178032 A CN 201210178032A CN 102709011 A CN102709011 A CN 102709011A
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- lightning arrester
- cylindrical shell
- jacket
- barrel
- icing
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Abstract
The utility model discloses an icing flashover preventing compound insulated lightning arrester which is provided with a barrel (5). Resistor discs (4) made of metallic oxide are stacked inside the barrel (5); the two ends of the barrel (5) are sealed by end caps (2); and a spring (3) is arranged one of the end caps (2) and the resistor discs (4) made of metallic oxide. A jacket (6) is sleeved on the barrel (5) and umbrella skirts (7) with unequal diameters are sleeved on the jacket (6) along the axial direction at intervals in a staggered manner. The lightning arrester has the advantages that 1, a metal pendant of the lightning arrester can be designed in various shapes according to the connection features so as to satisfy various requirements; 2, the resistor discs made of metallic oxide are in close contact and can prevent local overheating; 3, the umbrella skirts of the jacket are of irregular diameters and are arranged at intervals in a staggered manner, so the lightning arrester can have the function of preventing icing flashovers under freezing weather; and 4, the umbrella skirts with irregular diameters increase the creepage distance of the jacket, so the antifouling performance of the jacket is improved.
Description
Technical field
The invention belongs to the electrical engineering technical field, relate in particular to a kind of anti-icing sudden strain of a muscle compound inslation lightning arrester, this lightning arrester is applicable to the transmission line of ice damage prone district and the lightning protection of transformer station.
Background technology
Traditional compound inslation lightning arrester is a kind of electric equipment that is widely used in transmission line and transformer station's lightning protection, is connected in parallel on by the two ends of protection electric equipment, is used to limit lightning overvoltage or switching overvoltage.Along with the electrical network region covered is more and more wider, increasing electric installation has been routed to abominable, the mima type microrelief micro climate areas with complicated of geographical environment, and this has just strengthened and has comprised weather risk freezing, thunderbolt.Present used compound inslation lightning arrester, its external insulation such as adopt basically at the composite sheath in umbrella footpath or big umbellule footpath.The composite sheath of this form, because umbrella is directly equal or approaching, and spacing is little between umbrella; When suffering from abominable freezing disaster weather; Be easy between the full skirt of composite sheath caused the accident of icing flashover and even tripping operation then, have a strong impact on the safe and stable operation of electrical network by the ice slush bridge joint.
Summary of the invention
The technical problem that the present invention will solve is that the defective to prior art exists designs a kind of improved anti-icing sudden strain of a muscle compound inslation lightning arrester, uses this lightning arrester can continue to keep the lightning protection properties of conventional composite insulation lightning arrester, can improve anti-icing sudden strain of a muscle ability again.
Technical solution of the present invention is, referring to Fig. 1, said anti-icing sudden strain of a muscle compound inslation lightning arrester is as shown in Figure 1, has a cylindrical shell 5, and coaxial line closed assemblies have metal oxide resistance 4 in this cylindrical shell 5.The axial two ends of cylindrical shell 5 are respectively by end cap 2 sealing, and wherein in 5 of the said cylindrical shells between the metal oxide resistance 4 of an end end cap 2 and closed assembly, a spring 3 has been coaxially set.Go back coaxial line on the said cylindrical shell 5 and be set with an overcoat 6, axially spaced-apart is staggered on the body of this overcoat 6 is socketed with the full skirt 7 that umbrella directly differs in size.
Operation principle of the present invention is: above-mentioned improved anti-icing sudden strain of a muscle compound inslation lightning arrester replaces traditional compound inslation lightning arrester, is connected in parallel on by the two ends of protection electric equipment.When lightning overvoltage or switching overvoltage intrusion; Overvoltage is applied on the lightning arrester; Metal oxide resistance 4 in the lightning arrester is because its distinctive nonlinear resistance property; Can play restriction to overvoltage, thereby the protection electric equipment parallelly connected with it avoids causing that electric equipment damages; When meeting with freezing weather; Special design has the anti-icing sudden strain of a muscle composite sheath 6 that enriches umbrella-shaped structure, owing to have the umbrella footpath and the umbrella spacing of increasing, is staggered through big-and-middle umbellule; Big full skirt can play good bridging effect to the umbellule skirt; Thereby effectively delay the ice slush bridging time between the full skirt of lightning arrester overcoat, increase the difficulty of its flashover, reduce the initiation probability of tripping operation accident under the freezing weather greatly.
The invention has the beneficial effects as follows:
1) according to the connection characteristics metal suspension member is designed to various ways, has satisfied multiple application requirements;
2) spring pressure can make the metal oxide resistance contact closely, prevents local overheating;
3) overcoat adopts the mode that the full skirt interleaved in irregular umbrella footpath is arranged, and can realize the anti-icing sudden strain of a muscle function under the freezing weather;
4) irregular umbrella full skirt has directly increased the creepage distance of overcoat, thereby has also increased antifouling ability.
Description of drawings
Fig. 1 is the structure chart of the anti-icing sudden strain of a muscle compound inslation of the present invention lightning arrester, is denoted as among the figure:
1-metal suspension member,
2-end cap,
3-spring,
4-metal oxide resistance,
5-cylindrical shell,
6-overcoat,
7-full skirt.
Embodiment
Shown in Figure 1 is concrete embodiment of the anti-icing sudden strain of a muscle compound inslation of the present invention lightning arrester.The epoxy glass fiber cylinder that the Chinese Zhejiang of cylindrical shell 5 employings Gulifa Electric Co., Ltd. of this embodiment produces is tailored, and barrel dliameter is ￠ 160 ㎜, long 950 ㎜.The coaxial line closed assembly has metal oxide resistance 4 in the cylindrical shell 5.This metal oxide resistance 4 adopts the zinc oxide resistance sheet of the patty of Chinese Nanyang Jinguan Electric Co., Ltd. production, sheet footpath ￠ 150 ㎜, thick 30 ㎜.By end cap 2 sealings, end cap 2 is iron galvanized part respectively at the axial two ends of cylindrical shell 5, is promptly tailored by the thick irony thin plate of commercially available 10 ㎜ section bar, and mate with the barrel dliameter size of cylindrical shell 5 in the lid footpath.In the cylindrical shell 5 between a end in the cylindrical shell 5 two ends end caps 2 and the metal oxide resistance 4 of closed assembly, spring 3 is coaxially set.It is that ￠ 16 ㎜, external diameter are the common commercially available steel spring of ￠ 150 ㎜ that this spring 3 adopts the section of steel wire diameter.Coaxial line suit overcoat 6 on the cylindrical shell 5.The full skirt 7 that the staggered socket umbrella of axially spaced-apart directly differs in size on the body of overcoat 6.This overcoat 6 is that the sulphurated siliastic high temperature one injection moulding of methyl vinyl silicone rubber is processed with being socketed in full skirt 7 on its body base-material of drawing materials.The skirt footpath of full skirt 7 is between ￠ 280 ㎜～￠ 300 ㎜.Location when making things convenient for this anti-icing sudden strain of a muscle compound inslation lightning arrester to use articulates, and also is connected with a metal suspension member 1 respectively on the end cap 2 at said cylindrical shell 5 two ends, and this metal suspension member 1 in the form of sheets or spherical or ring-type or monaural shape or ears shape or flange-like.On the different metal suspension member 1, convenient also can punching by opening of punching.
Claims (3)
1. anti-icing sudden strain of a muscle compound inslation lightning arrester; It is characterized in that; It has a cylindrical shell (5), and the interior coaxial line closed assembly of this cylindrical shell (5) has metal oxide resistance (4), and the axial two ends of cylindrical shell (5) are sealed by end cap (2) respectively; Wherein in the tube of the said cylindrical shell (5) between the metal oxide resistance (4) of an end end cap (2) and closed assembly; The spring (3) that has been coaxially set is gone back coaxial line and is set with an overcoat (6) on the said cylindrical shell (5), axially spaced-apart is staggered on the body of this overcoat (6) is socketed with the full skirt (7) that umbrella directly differs in size.
2. anti-icing sudden strain of a muscle compound inslation lightning arrester according to claim 1 is characterized in that, is connected with a metal suspension member (1) on the end cap (2) at said cylindrical shell (5) two ends respectively.
3. according to claim 1 and 2 described anti-icing sudden strain of a muscle compound inslation lightning arresters, it is characterized in that said metal suspension member (1) in the form of sheets or spherical or ring-type or monaural shape or ears shape or flange-like.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101780321A CN102709011A (en) | 2012-06-01 | 2012-06-01 | Icing flashover preventing compound insulated lightning arrester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101780321A CN102709011A (en) | 2012-06-01 | 2012-06-01 | Icing flashover preventing compound insulated lightning arrester |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102709011A true CN102709011A (en) | 2012-10-03 |
Family
ID=46901698
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012101780321A Pending CN102709011A (en) | 2012-06-01 | 2012-06-01 | Icing flashover preventing compound insulated lightning arrester |
Country Status (1)
| Country | Link |
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| CN (1) | CN102709011A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103887026A (en) * | 2012-12-19 | 2014-06-25 | 上海吉泰电阻器有限公司 | Sleeve type high-voltage discharge circuit current-limiting resistor |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2307341Y (en) * | 1997-04-29 | 1999-02-10 | 水利部电力工业部机电研究所 | Arrester for line overvoltage protection resistor |
| JP2002151308A (en) * | 2000-11-08 | 2002-05-24 | Furukawa Electric Co Ltd:The | Lighting arrester |
| JP2002353008A (en) * | 2001-05-22 | 2002-12-06 | Furukawa Electric Co Ltd:The | Arrester |
| JP2008186744A (en) * | 2007-01-31 | 2008-08-14 | Japan Ae Power Systems Corp | Molded lightning arrester and its manufacture method |
| CN101325106A (en) * | 2008-04-08 | 2008-12-17 | 合肥南南电力保护设备有限公司 | Constant voltage overvoltage protector |
| WO2009044462A1 (en) * | 2007-10-03 | 2009-04-09 | Mitsubishi Electric Corporation | Lightning arrestor |
| CN201226284Y (en) * | 2008-02-29 | 2009-04-22 | 深圳市富诚高压电气有限公司 | Explosion-proof automatic releasing type lightning arrester |
| CN201435277Y (en) * | 2009-05-07 | 2010-03-31 | 李鹏 | lightning-proof insulator |
| CN201681680U (en) * | 2010-05-13 | 2010-12-22 | 湖南省电力公司试验研究院 | Ice flashover preventing composite insulator capable of lightning protection |
| CN202678008U (en) * | 2012-06-01 | 2013-01-16 | 湖南省电力公司科学研究院 | Icing flashover preventing composite insulating lighting rod |
-
2012
- 2012-06-01 CN CN2012101780321A patent/CN102709011A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2307341Y (en) * | 1997-04-29 | 1999-02-10 | 水利部电力工业部机电研究所 | Arrester for line overvoltage protection resistor |
| JP2002151308A (en) * | 2000-11-08 | 2002-05-24 | Furukawa Electric Co Ltd:The | Lighting arrester |
| JP2002353008A (en) * | 2001-05-22 | 2002-12-06 | Furukawa Electric Co Ltd:The | Arrester |
| JP2008186744A (en) * | 2007-01-31 | 2008-08-14 | Japan Ae Power Systems Corp | Molded lightning arrester and its manufacture method |
| WO2009044462A1 (en) * | 2007-10-03 | 2009-04-09 | Mitsubishi Electric Corporation | Lightning arrestor |
| CN201226284Y (en) * | 2008-02-29 | 2009-04-22 | 深圳市富诚高压电气有限公司 | Explosion-proof automatic releasing type lightning arrester |
| CN101325106A (en) * | 2008-04-08 | 2008-12-17 | 合肥南南电力保护设备有限公司 | Constant voltage overvoltage protector |
| CN201435277Y (en) * | 2009-05-07 | 2010-03-31 | 李鹏 | lightning-proof insulator |
| CN201681680U (en) * | 2010-05-13 | 2010-12-22 | 湖南省电力公司试验研究院 | Ice flashover preventing composite insulator capable of lightning protection |
| CN202678008U (en) * | 2012-06-01 | 2013-01-16 | 湖南省电力公司科学研究院 | Icing flashover preventing composite insulating lighting rod |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103887026A (en) * | 2012-12-19 | 2014-06-25 | 上海吉泰电阻器有限公司 | Sleeve type high-voltage discharge circuit current-limiting resistor |
| CN103887026B (en) * | 2012-12-19 | 2017-02-08 | 上海吉泰电阻器有限公司 | Sleeve type high-voltage discharge circuit current-limiting resistor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| ASS | Succession or assignment of patent right |
Owner name: HU NAN XIANGDIAN TRIAL RESEARCH TECHNOLOGY CO., LT Free format text: FORMER OWNER: HU NAN XIANGDIAN TRIAL RESEARCH TECHNOLOGY CO., LTD. Effective date: 20121018 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20121018 Address after: 410007 No. 79 hydroelectric power street, east pond, Hunan, Changsha Applicant after: Science Research Institute of Hunan Electric Power Co., Ltd. Applicant after: Hunan Xiangdian Electric Power Text & Research Co., Ltd. Applicant after: State Grid Corporation of China Address before: 410007 No. 79 hydroelectric power street, east pond, Hunan, Changsha Applicant before: Science Research Institute of Hunan Electric Power Co., Ltd. Applicant before: Hunan Xiangdian Electric Power Text & Research Co., Ltd. |
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| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20121003 |