CN201331985Y - Elbow-shaped inserting/pulling type metal-oxide lighting arrester - Google Patents
Elbow-shaped inserting/pulling type metal-oxide lighting arrester Download PDFInfo
- Publication number
- CN201331985Y CN201331985Y CNU2009200316028U CN200920031602U CN201331985Y CN 201331985 Y CN201331985 Y CN 201331985Y CN U2009200316028 U CNU2009200316028 U CN U2009200316028U CN 200920031602 U CN200920031602 U CN 200920031602U CN 201331985 Y CN201331985 Y CN 201331985Y
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- elbow
- type metal
- solid dielectric
- dielectric insulation
- shaped inserting
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Abstract
The utility model discloses an elbow-shaped inserting/pulling type metal-oxide lighting arrester of an AC electrical power system excess voltage protection which includes an elbow-shaped metal case connecting flange, another end of the metal case connects with an insulation locking ring, a pressure relief device, a discharging accounting device or live-wire terminal and earth terminal and conversion conducting wire orderly, another end of an insulating medium table body connects with a pluggable watch band shape contact tip, the metal case is equipped with a solid insulation medium in inside, the solid insulation medium is equipped with a core body in inside, the core body middle connects with a zinc bloom resistance card, an electric gum coating is set between the insulating medium external side and the metal case inner side and table body down part. The elbow-shaped inserting/pulling type metal-oxide lighting arrester improves surface charge potential distribution, enhances electroinsulating property, benefits for inserting electrical apparatus open hole, keeps gapless impinge on, has good current-voltage characteristic and small physical dimension, the electric pole impinges on and keeps good electroconductivity, the whole reliable ability increases. The elbow-shaped inserting/pulling type metal-oxide lighting arrester is widely used in electrical apparatus excess voltage protection, such as transforming plant and GIS combined electrical equipment.
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 elbow-shaped inserting/pulling type metal-oxide lighting 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, because the restriction of its shape causes mounting means not very convenient, and very inconvenient user uses the monitoring to lightning arrester of discharge counter or live monitoring device, 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 elbow-shaped inserting/pulling type metal-oxide lighting 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: improvements of the present utility model comprise that a horizontal ends that has an elbow type metal shell of flange is connected with and expose the solid dielectric insulation stage body, the described vertical end that has the elbow type metal shell of flange connects the insulating pressure releasing device successively respectively, discharge counter or live monitoring device terminal, earth terminal and conversion lead, expose solid dielectric insulation stage body top and be made as the plug contact, the inboard of grounded metal enclosure is equipped with solid dielectric insulation, described solid dielectric insulation inboard is equipped with core body, be connected with 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 grounded metal enclosure, with the insulation 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 front 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, a kind of elbow-shaped inserting/pulling type metal-oxide lighting arrester, comprising that a horizontal ends that has an elbow type metal shell 3 of flange is connected with exposes solid dielectric insulation stage body 2, the described vertical end that has the elbow type metal shell 3 of flange connects insulating pressure releasing device 9 successively, discharge counter or live monitoring device terminal 12 and conversion lead 11 and earth terminal 10, expose solid dielectric insulation stage body 2 tops and be made as plug contact 1, the inboard of metal shell 3 is equipped with solid dielectric insulation 7, described solid dielectric insulation 7 inboards are equipped with core body 5, be connected with 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 7 outsides and metal shell 3, with insulation binding ring 8 solid dielectric insulation 7 is locked between solid dielectric insulation 7 bottoms and pressure relief device 9 upper ends.
Described elbow-shaped inserting/pulling type metal-oxide lighting arrester outer shape is the elbow type.Use this outer shape to be convenient to the installation of discharge counter or live monitoring device.
The described solid dielectric insulation stage body 2 that exposes is conical cylinder.
Described core body 5 connects aluminium alloy top electrode, zinc oxide resistance sheet 6 and aluminium alloy bottom electrode from top to bottom successively, and is interconnected to constitute with the stack of conducting resinl bonding.
The solid dielectric insulation 7 that described core body 5 and metal shell are 3 is an electrically insulating silicone rubber.
The electric gel coating 4 of described metal grounding shell 3 contact inner surfaces and the conical cylinder outer surface lower end of exposing solid dielectric insulation stage body 2 is the semiconductive glue-line.
The plug contact 1 of described conical cylinder upper end is elastic watchband's formula contact, makes the contact contact more firm and tight.
Adopt insulation property between core body 5 and the metal shell 3 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 metal shell 3 is fixed, the tight lock ring 8 of insulation is set in the bottom of described core body 5, tight lock ring 8 is the high pressure resistant insulation material.
The bottom surface of described elbow type metal shell 3 vertical end is an earth terminal.
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 metal grounding shell 3 spraying semi-conductive adhesive 4, and extend to and expose solid insulation conical cylinder 2 lower ends.
Described elbow-shaped inserting/pulling type metal-oxide wall thunder device bottom is provided with insulating pressure releasing device 9, produces comminuted blast, the safety that jeopardizes other operational outfit when preventing the lightning arrester fault.
Described elbow-shaped inserting/pulling type metal-oxide lighting arrester is provided with one simultaneously and connects counter or live monitoring device terminal 12 and conversion lead 11 and earth terminal 10, the setting of conversion lead 11 makes user installation or uneasiness put electric counter or the live monitoring device is very convenient, promptly when the user need install discharge counter or live monitoring device, removing conversion lead 11 gets final product, otherwise mustn't remove conversion lead 11, 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. the maximum characteristics of this utility model are that it is shaped as the elbow type, and the particularly suitable user is convenient to install.
2. between the inboard of solid dielectric insulation 7 outsides and grounded metal enclosure 3, increased by an electric gel coating 4, the product surface Potential distribution is improved, increased its insulation property, and kept closely contact with the lower end of exposing solid dielectric insulation stage body 2.
3. the plug contact 1 that exposes solid dielectric insulation conical cylinder 2 upper ends is elastic watchband's formula contact, and this contact 1 can keep closely contacting with jack because of having elasticity.
4. core body 5 adopts zinc oxide resistance sheet 6 and upper and lower aluminum alloy anode to be formed by stacking with the conducting resinl bonding, make and the utlity model has good voltage-current characteristic and 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.
5. the lower end of this utility model elbow type metal shell is provided with one and connects counter or live monitoring device terminal 12 and conversion lead 11 and earth terminal 10, make user installation or uneasiness put electric counter or the live monitoring device is very convenient, promptly when the user need install discharge counter or live monitoring device, remove conversion lead 11 and get final product, otherwise mustn't remove conversion lead 11.
6. being widely used in transformer station and voltage is the overvoltage protection of the following electric equipments such as GIS combined electrical apparatus of 66KV.
Claims (8)
1. elbow-shaped inserting/pulling type metal-oxide lighting arrester, it is characterized in that comprising that a horizontal ends that has an elbow type metal shell (3) of flange is connected with exposes solid dielectric insulation stage body (2), the described vertical end that has the elbow type metal shell (3) of flange connects insulating pressure releasing device (9) successively, discharge counter or live monitoring device terminal (12) and conversion lead (11) and earth terminal (10), expose solid dielectric insulation stage body (2) top and be made as plug contact (1), the inboard of elbow type metal shell (3) is equipped with solid dielectric insulation (7), described solid dielectric insulation (7) inboard is equipped with core body (5), be connected with 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 (7) outside and elbow type metal shell (3), with insulation binding ring (8) solid dielectric insulation (7) is locked between solid dielectric insulation (7) bottom and pressure relief device (9) upper end.
2. elbow-shaped inserting/pulling type metal-oxide lighting arrester according to claim 1 is characterized in that lightning arrester is shaped as the elbow type.
3. elbow-shaped inserting/pulling type metal-oxide lighting arrester according to claim 1 is characterized in that the described solid dielectric insulation stage body (2) that exposes is a conical cylinder.
4. elbow-shaped inserting/pulling type metal-oxide lighting arrester according to claim 1 is characterized in that described core body (5) connects aluminium alloy top electrode, zinc oxide resistance sheet (6) and aluminium alloy bottom electrode from top to bottom successively, forms with the conducting resinl bonding.
5. elbow-shaped inserting/pulling type metal-oxide lighting arrester according to claim 1 is characterized in that the solid dielectric insulation (7) between described core body (5) and elbow type metal shell (3) is an electrically insulating silicone rubber.
6. elbow-shaped inserting/pulling type metal-oxide lighting arrester according to claim 1 is characterized in that described elbow type metal shell (3) contact inner surface is the semiconductive glue-line with the electric gel coating (4) that exposes the conical cylinder outer surface lower end of solid dielectric insulation stage body (2).
7, elbow-shaped inserting/pulling type metal-oxide lighting arrester according to claim 3 is characterized in that the plug contact (1) of described conical cylinder upper end is elastic watchband's formula contact.
8, elbow-shaped inserting/pulling type metal-oxide lighting arrester according to claim 1 is characterized in that the bottom surface of described elbow type metal shell (3) vertical end is an earth terminal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009200316028U CN201331985Y (en) | 2009-01-04 | 2009-01-04 | Elbow-shaped inserting/pulling type metal-oxide lighting arrester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009200316028U CN201331985Y (en) | 2009-01-04 | 2009-01-04 | Elbow-shaped inserting/pulling type metal-oxide lighting arrester |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201331985Y true CN201331985Y (en) | 2009-10-21 |
Family
ID=41225367
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2009200316028U Expired - Lifetime CN201331985Y (en) | 2009-01-04 | 2009-01-04 | Elbow-shaped inserting/pulling type metal-oxide lighting arrester |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201331985Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106872830A (en) * | 2017-03-21 | 2017-06-20 | 国网浙江省电力公司电力科学研究院 | One kind the experiment transition joint of high-tension cable plug-in and cable testing apparatus |
-
2009
- 2009-01-04 CN CNU2009200316028U patent/CN201331985Y/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106872830A (en) * | 2017-03-21 | 2017-06-20 | 国网浙江省电力公司电力科学研究院 | One kind the experiment transition joint of high-tension cable plug-in and cable testing apparatus |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20091021 Effective date of abandoning: 20090104 |