CN201178008Y - Anti-flashover through-wall sleeve - Google Patents
Anti-flashover through-wall sleeve Download PDFInfo
- Publication number
- CN201178008Y CN201178008Y CNU2008200852730U CN200820085273U CN201178008Y CN 201178008 Y CN201178008 Y CN 201178008Y CN U2008200852730 U CNU2008200852730 U CN U2008200852730U CN 200820085273 U CN200820085273 U CN 200820085273U CN 201178008 Y CN201178008 Y CN 201178008Y
- Authority
- CN
- China
- Prior art keywords
- shield ring
- insulating sleeve
- wall
- insulating bushing
- flashover
- 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
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Abstract
The utility model relates to an anti-flashover wall bushing used for the bus isolation and insulation of a switch cabinet. The anti-flashover wall bushing comprises an insulating bushing body, a high-voltage shield ring and a grounded shield ring. The high-voltage shield ring is in the shape of a meshed cylinder and embedded inside the insulating bushing body and positioned in the flange section of the insulating bushing in the position close to the inner wall of the insulating bushing body. The grounded shield ring is also in the shape of a meshed cylinder and embedded inside the insulating bushing body and positioned in the flange section of the insulating bushing in the position close to the outer wall of the insulating bushing body. The high-voltage shield ring and the grounded shield ring are coaxially sleeved. The distance between the cylindrical meshed walls of the high-voltage shield ring and the grounded shield ring is more than 25mm. During the installation, the high-voltage shield ring is connected with a power-transmission bus and the grounded shield ring is grounded. With the arrangement of the high-voltage shield ring and the grounded shield ring, the anti-flashover wall bushing improves the electric field distribution, prevents the flashovers on the inner and the outer surfaces of the insulating bushing. The two rings are spaced at a certain distance, so as to prevent the insulation breakdown and to ensure the use safety and increase the service life.
Description
Technical field
The utility model relates to the insulator technical field, specifically relates to a kind of wall bushing that is used for switch cubicle bus spacer insulator.
Background technology
Be used in the wall bushing on the 35KV switch cubicle at present, the flashover phenomenon can occur when being used as withstand voltage test or operation, fail safe and useful life that influence is used.
Summary of the invention
The purpose of this utility model is in order to overcome the deficiency of above-mentioned prior art, a kind of anti-flashover wall bushing to be provided, to improve the Electric Field Distribution in wall bushing zone, prevent the generation of flashover phenomenon, with the fail safe guaranteeing to use with increase useful life.
For achieving the above object, the technical solution adopted in the utility model is such: a kind of anti-flashover wall bushing comprises the insulating sleeve body, high-tension shielding ring, and earth shield ring; Said high-tension shielding ring is netted cylinder, is embedded in the insulating sleeve body, is positioned at the nearly insulating sleeve inner body wall place of insulating sleeve flange section; Said earth shield ring also is netted cylinder, is embedded in the insulating sleeve body, is positioned at the nearly insulating sleeve body outer wall place of insulating sleeve flange section, and high-tension shielding ring and earth shield ring concentric are sheathed, and cylinder mesh wall spacing is more than the 25mm; The high-tension shielding ring joins earth shield articulating ground with the transmission of electricity bus during installation.
Owing to adopted technique scheme, a kind of anti-flashover wall bushing of the present utility model, because of being provided with high-tension shielding ring and earth shield ring, improved Electric Field Distribution, the high-tension shielding ring plays the effect that prevents insulating sleeve inner surface flashover, and the earth shield ring then plays the effect that prevents insulating sleeve outer surface flashover; Distance between two rings is provided with preventing insulation breakdown, thereby guarantees the fail safe of using and increase useful life.
Description of drawings
Below in conjunction with accompanying drawing the utility model is further described.
Fig. 1 is a structural representation of the present utility model.
Among the figure: 1, body, 2, the high-tension shielding ring, 3, the earth shield ring.
Embodiment
A kind of anti-flashover wall bushing of the present utility model comprises insulating sleeve body 1, high-tension shielding ring 2, and earth shield ring 3; Said high-tension shielding ring 2 is netted cylinder, is embedded in the insulating sleeve body 1, is positioned at the nearly insulating sleeve inner body wall place of insulating sleeve flange section; Said earth shield ring 3 also is netted cylinder, is embedded in the insulating sleeve body, is positioned at the nearly insulating sleeve body outer wall place of insulating sleeve flange section; High-tension shielding ring and earth shield ring concentric are sheathed, and the cylinder mesh wall spacing of high-tension shielding ring and earth shield ring is more than the 25mm; The high-tension shielding ring joins earth shield articulating ground with the transmission of electricity bus during installation.
Claims (1)
1, a kind of anti-flashover wall bushing is characterized in that: comprise insulating sleeve body (1), high-tension shielding ring (2), and earth shield ring (3); Said high-tension shielding ring (2) is netted cylinder, is embedded in the insulating sleeve body (1), is positioned at the nearly insulating sleeve inner body wall place of insulating sleeve flange section; Said earth shield ring (3) also is netted cylinder, is embedded in the insulating sleeve body, is positioned at the nearly insulating sleeve body outer wall place of insulating sleeve flange section; High-tension shielding ring and earth shield ring concentric are sheathed, and the cylinder mesh wall spacing of high-tension shielding ring and earth shield ring is more than the 25mm; The high-tension shielding ring joins earth shield articulating ground with the transmission of electricity bus during installation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200852730U CN201178008Y (en) | 2008-03-28 | 2008-03-28 | Anti-flashover through-wall sleeve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200852730U CN201178008Y (en) | 2008-03-28 | 2008-03-28 | Anti-flashover through-wall sleeve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201178008Y true CN201178008Y (en) | 2009-01-07 |
Family
ID=40218032
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200852730U Expired - Fee Related CN201178008Y (en) | 2008-03-28 | 2008-03-28 | Anti-flashover through-wall sleeve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201178008Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102064478A (en) * | 2010-12-11 | 2011-05-18 | 河南省电力公司南阳供电公司 | Method for preventing 10 KV outgoing line wall bushing of substation from breakdown |
| CN102969684A (en) * | 2012-11-27 | 2013-03-13 | 浙江省开化七一电力器材有限责任公司 | Wall bushing for high-tension switch cabinet |
| CN103296620A (en) * | 2012-03-01 | 2013-09-11 | 上海旭然电器有限公司 | Wall feed-through sleeve with high-low voltage shielding |
| CN104808023A (en) * | 2015-05-04 | 2015-07-29 | 中国电力科学研究院 | Partial discharge free connector assembly for sleeve insulation detection |
| CN114217183A (en) * | 2021-11-25 | 2022-03-22 | 广东电网有限责任公司广州供电局 | GIS cable device |
-
2008
- 2008-03-28 CN CNU2008200852730U patent/CN201178008Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102064478A (en) * | 2010-12-11 | 2011-05-18 | 河南省电力公司南阳供电公司 | Method for preventing 10 KV outgoing line wall bushing of substation from breakdown |
| CN103296620A (en) * | 2012-03-01 | 2013-09-11 | 上海旭然电器有限公司 | Wall feed-through sleeve with high-low voltage shielding |
| CN102969684A (en) * | 2012-11-27 | 2013-03-13 | 浙江省开化七一电力器材有限责任公司 | Wall bushing for high-tension switch cabinet |
| CN104808023A (en) * | 2015-05-04 | 2015-07-29 | 中国电力科学研究院 | Partial discharge free connector assembly for sleeve insulation detection |
| CN114217183A (en) * | 2021-11-25 | 2022-03-22 | 广东电网有限责任公司广州供电局 | GIS cable device |
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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: 20090107 Termination date: 20140328 |