CN201294126Y - Inserting/pulling type metal-oxide lighting arrester - Google Patents
Inserting/pulling type metal-oxide lighting arrester Download PDFInfo
- Publication number
- CN201294126Y CN201294126Y CNU2008200293727U CN200820029372U CN201294126Y CN 201294126 Y CN201294126 Y CN 201294126Y CN U2008200293727 U CNU2008200293727 U CN U2008200293727U CN 200820029372 U CN200820029372 U CN 200820029372U CN 201294126 Y CN201294126 Y CN 201294126Y
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- solid dielectric
- aluminum alloy
- dielectric insulation
- plug
- metal oxide
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Abstract
The utility model discloses a mobile metal oxide lightning arrester for the overvoltage protection of an alternative current power system, wherein an aluminum alloy shell is connected with a flange, an earth bolt is connected on the flange, the earth bolt is directly grounded, and a locking ring, a pressure release device, a discharge counter and a charged monitor terminal are connected on the other end of the aluminum alloy shell in turn, a mobile watchband type contact is connected on the other end of an insulating medium stage body, and solid insulating medium is arranged on the inner side of the aluminum alloy shell, and a core body is arranged on the inner side of the solid insulating medium, and a high gradient zinc oxide varistor is connected on the middle portion of the core body, and electric gel coats are respectively arranged between the outer side of the insulating medium and the inner side of the aluminum alloy shell and on the lower end of the stage body. The mobile metal oxide lightning arrester has the characteristics of increasing insulating property, being beneficial for being inserted in mounting holes of electrical equipment, keeping tight contact, having excellent volt-ampere characteristic and small physical dimension, tightly contacting electrodes, keeping the well conductivity performance, and increasing the whole reliable performance, which can be widely applied in the overvoltage protection of electrical equipment, such as transformer substations, GIS combined electrical apparatuses and the like.
Description
Technical field
The utility model relates to a kind of overvoltage protection device lightning arrester that is used for electric power system, is specifically related to a kind of plug-in metal oxide arrester that is used for electric power system electric equipment overvoltage protection.
Background technology
At present, high-tension electricity device industries such as switch, just the GIS combined electrical apparatus direction towards miniaturization develops, no matter traditional metal oxide arrester is porcelain bushing type or silicon rubber composite sheath formula, there is the surface potential height, cause personal injury, device security hidden danger easily, install and defective such as maintenance inconvenience, so its service condition and scope all are subjected to certain restriction.Chinese patent ZL01265825.1 discloses " tangible formula overvoltage protection device " and ZL200620046285.3 discloses " tangible formula metal oxide arrester "; the core body of above-mentioned two kinds of lightning arresters is connected to high-pressure side and low-pressure end; be provided with solid dielectric insulation between core body and the metal shell; which is provided with earth terminal; the dielectric front end is a connection-peg, though improved the defective on porcelain bushing type, the silicon rubber composite sheath formula.But these two kinds of lightning arresters still can not satisfy the best requirement of device miniaturization such as GIS combined electrical apparatus fully from structure, profile and physical dimension and some performance, lightning arrester still exists performance desirable not enough, the zinc oxide valve plate contact of using in the core body is firm inadequately, causes defectives such as loose contact sometimes.
Summary of the invention
It is low or do not have a current potential that the purpose of this utility model provides a kind of surface potential, the person is not had injury, guarantees equipment safety operation, it is convenient to install and overhaul, and thoroughly eliminates surperficial high potential, satisfies the plug-in metal oxide arrester of the instructions for use of electric equipments such as GIS combined electrical apparatus.
In order to overcome the deficiencies in the prior art, technical solutions of the utility model are to solve like this: comprise by being connected with flange on the aluminum alloy casing, be connected with earth stud on the flange, the direct ground connection of earth stud, aluminum alloy casing one end is provided with and exposes the solid dielectric insulation stage body, the described aluminum alloy casing other end connects pressure relief device successively, discharge counter and live monitoring device terminal, the novel improvements of its this use are to expose that the top is made as the plug contact on the solid dielectric insulation stage body, the outer inboard of ground connection aluminium alloy is equipped with solid dielectric insulation, described solid dielectric insulation inboard is equipped with core body, be connected with the high gradient zinc oxide resistance sheet in the middle of the core body, all scribble electric gel coating with the lower end of exposing the solid dielectric insulation stage body between the inboard of the solid dielectric insulation outside and ground connection aluminum alloy casing, with binding ring solid dielectric insulation is locked between solid dielectric insulation bottom and the pressure relief device upper end.
Description of drawings
Fig. 1 is the master's view that partly cuts open of the present utility model.
Embodiment
Accompanying drawing is embodiment of the present utility model.
Below in conjunction with accompanying drawing summary of the invention of the present utility model is described further:
With reference to shown in Figure 1, the plug-in metal oxide arrester, comprise by being connected with flange on the aluminum alloy casing 7, be connected with earth stud 3 on the flange, earth stud 3 direct ground connection, aluminum alloy casing 7 one ends are provided with and expose solid dielectric insulation stage body 2, described aluminum alloy casing 7 other ends connect pressure relief device 10 successively, discharge counter and live monitoring device terminal 11, expose solid dielectric insulation stage body 2 tops be made as the plug contact 1, the inboard of ground connection aluminum alloy casing 7 is equipped with solid dielectric insulation 8, described solid dielectric insulation 8 inboards are equipped with core body 5, be connected with high gradient zinc oxide resistance sheet 6 in the middle of the core body 5, all scribble electric gel coating 4 with the lower end of exposing solid dielectric insulation stage body 2 between the inboard of solid dielectric insulation 8 outsides and ground connection aluminum alloy casing 7, with binding ring 9 solid dielectric insulation 8 is locked between solid dielectric insulation 8 bottoms and pressure relief device 10 upper ends.
The described solid dielectric insulation stage body 2 that exposes is conical cylinder.
Described core body 5 connects aluminium alloy top electrode, high gradient zinc oxide resistance sheet 6 and aluminium alloy bottom electrode from top to bottom successively, is interconnected to constitute with the stack of conducting resinl bonding.
The solid dielectric insulation 8 that described core body 5 and aluminum alloy casing are 7 is an electrically insulating silicone rubber.
The electric gel coating 4 of described aluminium alloy grounding shell 7 contact inner surfaces and conical cylinder 2 outer surface lower ends is the semiconductive glue-line.
The plug contact 1 of described conical cylinder upper end is elastic watchband's formula contact.
Adopt insulation property between core body 5 and the aluminum alloy casing 7 and have certain flexible organic silicon rubber and be designed to conical cylinder 2 as insulating barrier and exposed parts organic silicon rubber, make not only good insulation preformance but also be beneficial to the installing hole that product inserts electric equipment again of product, and keep closely contact.
For further that core body 5 and aluminum alloy casing 7 is fixed, tight lock ring 9 is set in the bottom of described core body 5, tight lock ring 9 is metal material or insulating material.
For improving surface of insulating layer and internal electric field distribution situation, described plug-in metal oxide arrester will expose insulated part and be designed to conical cylinder, at core body 5 surface portions that contact with aluminium grounding shell 7 spraying semi-conductor adhesive 4, and extend to and expose solid insulation conical cylinder 2 lower ends.
Described plug-in metal oxide wall thunder device bottom is provided with pressure relief device 10, produces comminuted blast, the safety that jeopardizes other operational outfit when preventing the lightning arrester fault.
Described plug-in metal oxide arrester is provided with one simultaneously and connects counter and live monitoring device 11 terminals, make user installation discharge counter and live monitoring device very convenient, satisfying system voltage is the special instructions for use of the following compact electric equipments such as GIS combined electrical apparatus of 66KV.
In sum, the utility model compared with prior art has following characteristics:
1), between the inboard of solid dielectric insulation 8 outsides and ground connection aluminum alloy casing 7 and the lower end of exposing solid dielectric insulation stage body 2 increased by an electric gel coating 4, the product surface Potential distribution is improved, increase its insulation property, and keep closely contact.
2), the plug contact 1 that exposes solid dielectric insulation conical cylinder 2 upper ends is elastic watchband's formula contact, this contact 1 can keep closely contacting with jack because of having elasticity.
3), core body 5 adopts high gradient zinc oxide resistance sheet 6 and upper and lower aluminum alloy anode to be formed by stacking with the conducting resinl bonding, making that this use is novel has good voltage-current characteristic and a little physical dimension, high gradient zinc oxide resistance sheet 6 is closely contacted with upper and lower aluminum alloy anode, and can keep excellent conductive performance, the product global reliability can increase.
4), be widely used in the overvoltage protection that transformer station and voltage are the following electric equipments such as GIS combined electrical apparatus of 66KV.
Claims (6)
1. plug-in metal oxide arrester, comprise by being connected with flange on the aluminum alloy casing (7), be connected with earth stud (3) on the flange, earth stud (3) is ground connection directly, aluminum alloy casing (7) one ends are provided with and expose solid dielectric insulation stage body (2), described aluminum alloy casing (7) other end connects pressure relief device (10) successively, discharge counter and live monitoring device terminal (11), it is characterized in that exposing solid dielectric insulation stage body (2) top and be made as plug contact (1), the inboard of ground connection aluminum alloy casing (7) is equipped with solid dielectric insulation (8), described solid dielectric insulation (8) inboard is equipped with core body (5), be connected with high gradient zinc oxide resistance sheet (6) in the middle of the core body (5), all scribble electric gel coating (4) with the lower end of exposing solid dielectric insulation stage body (2) between the inboard of solid dielectric insulation (8) outside and ground connection aluminum alloy casing (7), with binding ring (9) solid dielectric insulation (8) is locked between solid dielectric insulation (8) bottom and pressure relief device (10) upper end.
2. plug-in metal oxide arrester according to claim 1 is characterized in that the described solid dielectric insulation stage body (2) that exposes is a conical cylinder.
3. plug-in metal oxide arrester according to claim 1, it is characterized in that described core body (5) connects aluminium alloy top electrode, high gradient zinc oxide resistance sheet (6) and aluminium alloy bottom electrode from top to bottom successively, be interconnected to constitute with the stack of conducting resinl bonding.
4. plug-in metal oxide arrester according to claim 1 is characterized in that, the solid dielectric insulation (8) between described core body (5) and aluminum alloy casing (7) is an electrically insulating silicone rubber.
5. plug-in metal oxide arrester according to claim 1 is characterized in that described aluminum alloy casing (7) contact inner surface is the semiconductive glue-line with the electric gel coating (4) that exposes solid dielectric insulation stage body (2) outer surface lower end.
6, plug-in metal oxide arrester according to claim 1 is characterized in that the described plug contact (1) that exposes solid dielectric insulation stage body (2) upper end is elastic watchband's formula contact.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200293727U CN201294126Y (en) | 2008-06-17 | 2008-06-17 | Inserting/pulling type metal-oxide lighting arrester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200293727U CN201294126Y (en) | 2008-06-17 | 2008-06-17 | Inserting/pulling type metal-oxide lighting arrester |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201294126Y true CN201294126Y (en) | 2009-08-19 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200293727U Expired - Fee Related CN201294126Y (en) | 2008-06-17 | 2008-06-17 | Inserting/pulling type metal-oxide lighting arrester |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201294126Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101707105B (en) * | 2009-11-16 | 2015-08-05 | 郭道林 | Tangible plug type lightning arrester |
| CN106710759A (en) * | 2017-01-16 | 2017-05-24 | 国家电网公司 | Large-capacity zinc oxide lightning arrester |
| CN106782960A (en) * | 2016-12-27 | 2017-05-31 | 中国西电电气股份有限公司 | A kind of lightweight GIS arresters |
| CN107807316A (en) * | 2017-11-27 | 2018-03-16 | 清华四川能源互联网研究院 | Local discharge detection device and system |
| CN109672162A (en) * | 2019-01-23 | 2019-04-23 | 平高集团有限公司 | GIS device and its VFTO inhibit device |
| CN110993225A (en) * | 2019-11-19 | 2020-04-10 | 深圳供电局有限公司 | Neutral point lightning arrester of transformer |
-
2008
- 2008-06-17 CN CNU2008200293727U patent/CN201294126Y/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101707105B (en) * | 2009-11-16 | 2015-08-05 | 郭道林 | Tangible plug type lightning arrester |
| CN106782960A (en) * | 2016-12-27 | 2017-05-31 | 中国西电电气股份有限公司 | A kind of lightweight GIS arresters |
| CN106710759A (en) * | 2017-01-16 | 2017-05-24 | 国家电网公司 | Large-capacity zinc oxide lightning arrester |
| CN106710759B (en) * | 2017-01-16 | 2018-08-03 | 国家电网公司 | A kind of large capacity Zinc-Oxide Arrester |
| CN107807316A (en) * | 2017-11-27 | 2018-03-16 | 清华四川能源互联网研究院 | Local discharge detection device and system |
| CN109672162A (en) * | 2019-01-23 | 2019-04-23 | 平高集团有限公司 | GIS device and its VFTO inhibit device |
| CN109672162B (en) * | 2019-01-23 | 2021-02-23 | 平高集团有限公司 | GIS equipment and VFTO suppression device thereof |
| CN110993225A (en) * | 2019-11-19 | 2020-04-10 | 深圳供电局有限公司 | Neutral point lightning arrester of transformer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090819 Termination date: 20110617 |