CN202678008U - Icing flashover preventing composite insulating lighting rod - Google Patents

Icing flashover preventing composite insulating lighting rod Download PDF

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Publication number
CN202678008U
CN202678008U CN 201220257622 CN201220257622U CN202678008U CN 202678008 U CN202678008 U CN 202678008U CN 201220257622 CN201220257622 CN 201220257622 CN 201220257622 U CN201220257622 U CN 201220257622U CN 202678008 U CN202678008 U CN 202678008U
Authority
CN
China
Prior art keywords
composite insulating
cylindrical shell
parachute
metal oxide
ice
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN 201220257622
Other languages
Chinese (zh)
Inventor
陆佳政
赵纯
方针
李波
张红先
蒋正龙
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
State Grid Corp of China SGCC
Electric Power Research Institute of State Grid Hunan Electric Power Co Ltd
State Grid Hunan Electric Power Co Ltd
Disaster Prevention and Mitigation Center of State Grid Hunan Electric Power Co Ltd
Original Assignee
State Grid Corp of China SGCC
Electric Power Research Institute of State Grid Hunan Electric Power Co Ltd
Hunan Xiangdian Test Research Institute Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by State Grid Corp of China SGCC, Electric Power Research Institute of State Grid Hunan Electric Power Co Ltd, Hunan Xiangdian Test Research Institute Co Ltd filed Critical State Grid Corp of China SGCC
Priority to CN 201220257622 priority Critical patent/CN202678008U/en
Application granted granted Critical
Publication of CN202678008U publication Critical patent/CN202678008U/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

The utility model discloses an icing flashover preventing composite insulating lighting rod which comprises a barrel body (5), wherein metal oxide resistance discs (4) are piled up in the barrel body (5), two ends of the barrel body (5) are closed by end covers (2), and a spring (3) is arranged between one end cover (2) and the metal oxide resistance discs (4). The barrel body (5) further comprises an outer sleeve (6), wherein parachute skirts (7) with different parachute diameters are staggered at intervals on the upper axial direction of the outer sleeve (6) in sleeved mode. The icing flashover preventing composite insulating lighting rod is characterized in that metal pendants can be designed to different forms so as to satisfy various requirements, the metal oxide resistance discs contact closely so that local overheating is prevented, parachute skirts with irregular parachute diameters are adopted in the outer sleeve to be staggered at intervals so that the function of preventing icing flashover in ice or snow weathers are achieved, and antifouling capacity is also enhanced since the cluster parachutes with irregular parachute diameters extend the creepage distance of the outer sleeve.

Description

Anti-ice-flashing composite insulating lightning-protection device
Technical field
The utility model belongs to the electrical engineering technical field, relates in particular to a kind of anti-ice-flashing composite insulating lightning-protection device, and this lightning arrester is applicable to the transmission line of ice damage prone district and the lightning protection of transformer station.
Background technology
Traditional composite insulating lightning-protection device is a kind of electric equipment that is widely used in transmission line and Transformer Substation Lightning Protection protection, is connected in parallel on the two ends of protected electric equipment, is used for restriction lightning overvoltage or switching overvoltage.Along with the zone that electrical network covers is more and more wider, increasing electric installation has been routed to that geographical environment is abominable, the area of mima type microrelief micro climate complexity, and this has just strengthened and has comprised Climatic risk freezing, thunderbolt.Present used composite insulating lightning-protection device, its external insulation such as adopt substantially at the composite sheath in umbrella footpath or large 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 by the ice slush bridge joint, then cause the accident of icing flashover and even tripping operation, have a strong impact on the safe and stable operation of electrical network.
The utility model content
The technical problems to be solved in the utility model is, defective for the prior art existence, design a kind of improved anti-ice-flashing composite insulating lightning-protection device, use this lightning arrester can continue to keep the lightning protection properties of conventional composite insulation lightning arrester, can improve the anti-ice-flashing ability again.
Technical solution of the present utility model is, referring to Fig. 1, described anti-ice-flashing composite insulating lightning-protection device has a cylindrical shell 5 as shown in Figure 1, and these cylindrical shell 5 interior coaxial line closed assemblies have metal oxide resistance 4.The axial two ends of cylindrical shell 5 wherein in the cylinder of the described cylindrical shell 5 between the metal oxide resistance 4 of an end end cap 2 and closed assembly, are provided with a spring 3 respectively by end cap 2 sealings coaxial line.Be set with an overcoat 6 on the described 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 with going back coaxial line.
Operation principle of the present utility model is: above-mentioned improved anti-ice-flashing composite insulating lightning-protection device replaces traditional composite insulating lightning-protection device, is connected in parallel on the two ends of protected electric equipment.When having lightning overvoltage or switching overvoltage to invade, 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 protect the electric equipment in parallel with it, avoid causing that electric equipment damages; When meeting with freezing weather, special design has the anti-ice-flashing composite sheath 6 that enriches umbrella-shaped structure, owing to have umbrella footpath and the umbrella spacing of increasing, be staggered by big-and-middle umbellule, large 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, greatly reduce the initiation probability of trip accident under the freezing weather.
The beneficial effects of the utility model are:
1) according to the connection characteristics metal hanger 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-ice-flashing 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 utility model anti-ice-flashing composite insulating lightning-protection device, is denoted as among the figure:
1-metal hanger,
2-end cap,
3-spring,
4-metal oxide resistance,
5-cylindrical shell,
6-overcoat,
7-full skirt.
Embodiment
Figure 1 shows that specific embodiment of the utility model anti-ice-flashing composite insulating lightning-protection device.The epoxy glass fiber cylinder that the cylindrical shell 5 of this embodiment adopts Zhejiang Province, China Gulifa Electric Co., Ltd. to produce is tailored, and barrel dliameter is ￠ 160mm, long 950mm.Cylindrical shell 5 interior coaxial line closed assemblies have metal oxide resistance 4.This metal oxide resistance 4 adopts the zinc oxide resistance sheet of the patty of Chinese Nanyang Jinguan Electric Co., Ltd. production, sheet footpath ￠ 150mm, thick 30mm.By end cap 2 sealings, end cap 2 is iron galvanized part respectively at the axial two ends of cylindrical shell 5, is namely tailored by the thick irony thin plate of commercially available 10mm 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 set coaxial line.It is that ￠ 16mm, external diameter are the common commercially available steel spring of ￠ 150mm that this spring 3 adopts the section of steel wire diameter.Suit overcoat 6 in coaxial line ground on the cylindrical shell 5.The full skirt 7 that the staggered socket of axially spaced-apart umbrella directly differs in size on the body of overcoat 6.This overcoat 6 and to be socketed in full skirt 7 on its body base-material of drawing materials be that the sulphurated siliastic high-temperature integrated injection moulding of methyl vinyl silicone rubber is made.The skirt footpath of full skirt 7 is between ￠ 280mm～￠ 300mm.Location when making things convenient for this anti-ice-flashing composite insulating lightning-protection device to use articulates, and also is connected with respectively a metal hanger 1 on the end cap 2 at described cylindrical shell 5 two ends, and this metal hanger 1 in the form of sheets or spherical or ring-type or monaural shape or ears shape or flange-like.On the different metal hanger 1, convenient also can punching by opening of punching.

Claims (3)

1. anti-ice-flashing composite insulating lightning-protection device, it is characterized in that, it has a cylindrical shell (5), the interior coaxial line closed assembly of this cylindrical shell (5) has metal oxide resistance (4), the axial two ends of cylindrical shell (5) are sealed by end cap (2) respectively, wherein in the cylinder of the described cylindrical shell (5) between the metal oxide resistance (4) of an end end cap (2) and closed assembly, be provided with a spring (3) coaxial line, be set with an overcoat (6) on the described 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 with going back coaxial line.
2. anti-ice-flashing composite insulating lightning-protection device according to claim 1 is characterized in that, is connected with respectively a metal hanger (1) on the end cap (2) at described cylindrical shell (5) two ends.
3. anti-ice-flashing composite insulating lightning-protection device according to claim 1 and 2 is characterized in that, described metal hanger (1) in the form of sheets or spherical or ring-type or monaural shape or ears shape or flange-like.
CN 201220257622 2012-06-01 2012-06-01 Icing flashover preventing composite insulating lighting rod Expired - Fee Related CN202678008U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201220257622 CN202678008U (en) 2012-06-01 2012-06-01 Icing flashover preventing composite insulating lighting rod

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201220257622 CN202678008U (en) 2012-06-01 2012-06-01 Icing flashover preventing composite insulating lighting rod

Publications (1)

Publication Number Publication Date
CN202678008U true CN202678008U (en) 2013-01-16

Family

ID=47498894

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 201220257622 Expired - Fee Related CN202678008U (en) 2012-06-01 2012-06-01 Icing flashover preventing composite insulating lighting rod

Country Status (1)

Country Link
CN (1) CN202678008U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102709011A (en) * 2012-06-01 2012-10-03 湖南省电力公司科学研究院 Icing flashover preventing compound insulated lightning arrester
CN109791824A (en) * 2016-10-04 2019-05-21 西门子股份公司 Overvoltage arrester device and method for adjusting overvoltage arrester device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102709011A (en) * 2012-06-01 2012-10-03 湖南省电力公司科学研究院 Icing flashover preventing compound insulated lightning arrester
CN109791824A (en) * 2016-10-04 2019-05-21 西门子股份公司 Overvoltage arrester device and method for adjusting overvoltage arrester device

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CP01 Change in the name or title of a patent holder

Address after: 410007 No. 79 hydroelectric power street, east pond, Hunan, Changsha

Patentee after: STATE GRID HUNAN ELECTRIC POWER COMPANY Research Institute

Patentee after: XIANG-ELECTRIC EXPERIMENT AND RESEARCH TECHNOLOGY COMPANY OF HUNAN PROVINCE

Patentee after: State Grid Corporation of China

Address before: 410007 No. 79 hydroelectric power street, east pond, Hunan, Changsha

Patentee before: SCIENCE RESEARCH INSTITUTE OF HUNAN ELECTRIC POWER Co.,Ltd.

Patentee before: XIANG-ELECTRIC EXPERIMENT AND RESEARCH TECHNOLOGY COMPANY OF HUNAN PROVINCE

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Address after: 100031 Xicheng District West Chang'an Avenue, No. 86, Beijing

Patentee after: State Grid Corporation of China

Patentee after: STATE GRID HUNAN ELECTRIC POWER COMPANY Research Institute

Address before: 410007 No. 79 hydroelectric power street, east pond, Hunan, Changsha

Patentee before: STATE GRID HUNAN ELECTRIC POWER COMPANY Research Institute

Patentee before: XIANG-ELECTRIC EXPERIMENT AND RESEARCH TECHNOLOGY COMPANY OF HUNAN PROVINCE

Patentee before: State Grid Corporation of China

ASS Succession or assignment of patent right

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C41 Transfer of patent application or patent right or utility model
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Effective date of registration: 20150608

Address after: 100031 Xicheng District West Chang'an Avenue, No. 86, Beijing

Patentee after: State Grid Corporation of China

Patentee after: STATE GRID HUNAN ELECTRIC POWER Co.

Patentee after: STATE GRID HUNAN ELECTRIC COMPANY DISASTER PREVENTION AND REDUCTION CENTER

Patentee after: STATE GRID HUNAN ELECTRIC POWER COMPANY Research Institute

Address before: 100031 Xicheng District West Chang'an Avenue, No. 86, Beijing

Patentee before: State Grid Corporation of China

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CF01 Termination of patent right due to non-payment of annual fee
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20130116

Termination date: 20180601