CN203812658U - High-voltage bushing and shielding body thereof - Google Patents
High-voltage bushing and shielding body thereof Download PDFInfo
- Publication number
- CN203812658U CN203812658U CN201420095660.8U CN201420095660U CN203812658U CN 203812658 U CN203812658 U CN 203812658U CN 201420095660 U CN201420095660 U CN 201420095660U CN 203812658 U CN203812658 U CN 203812658U
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- Prior art keywords
- bushing
- ring
- shield
- cylinder
- shielding
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Abstract
Disclosed are a high-voltage bushing and a shielding body thereof. The external of the high-voltage bushing is provided with a bushing insulating cylinder, and the internal of the high-voltage bushing is provided with the bushing shielding body; the bushing shielding body comprises a shielding cylinder and a mouse cage structure, the mouse cage structure is composed of a first ring, a second ring and a plurality of support rods disposed between the first ring and the second ring, the shielding cylinder and the second ring of the mouse cage structure are joint at one end of the shielding cylinder, the other end of the shielding cylinder is provided with a shielding cylinder flange, and the bushing insulating cylinder and the bushing shielding body are connected by utilizing bolts through a transition flange at a joint part between the shielding body flange and a bushing insulating cylinder flange, so the bushing shielding body is located between the conductor inside the high-voltage bushing and the bushing insulating cylinder. The bushing shielding body has an excellent electric-field distorted area shielding effect of the gas insulation high-voltage bushing, the structure is simple, and processing and assembling are easy.
Description
Technical field
The utility model belongs to high-voltage electrical apparatus technical field, specifically a kind of gas isolated bushing of SF6 and inner shield thereof that can be used for superhigh pressure.
Background technology
In high voltage electric appliance, the normal concentric cylinder electric field structure that occurs irregularly shaped electrode, especially between the sleeve pipe insulating cylinder and inner conductor of bushing, for this class formation, need to increase metallic shield, by metallic shield, the electric field between the conductor of high field area and the sleeve pipe in low field intensity district is become evenly, meet the insulating requirements of different electric pressures.
Through the retrieval of prior art is found, Chinese patent literature CN200810232112.4, recorded a kind of high-tension apparatus inlet-outlet sleeve, its technical scheme is: between center conductor and insulated tube, be provided with coaxial double layer screen assembly, it is characterized in that, described double layer screen assembly is an integral type arc shielding construction connecting with insulated tube; This utility model has been introduced a kind of double layer screen assembly, it is comprised of lower insulation supporter, upper insulation supporter, intershield top, counter flange, intershield bottom, earth shield, ground connection flange, manufacturing cost and the difficulty of processing of metallic shield are increased, part complexity strengthens assembling and transport difficulty, large area increases metallic shield and insulated support, causes raw-material waste.
Utility model content
The purpose of this utility model be to provide a kind of superior, simple in structure to electric field distortion regions shield effect, processing is simple, assembling is simply with the bushing structure of mouse-cage type metallic shield body.
The technical solution of the utility model is, a kind of bushing shield, described shield comprises a shielding cylinder and a cage-shaped structure being comprised of many support bars of first ring, the second ring and first ring and the second interannular, described shielding cylinder engages in one end of shielding cylinder with the second ring of cage-shaped structure, and the other end place of described shielding cylinder is provided with shield flange.
A kind of bushing, the outside of described bushing is that bushing insulating cylinder, an inside have a bushing shield, described shield comprises a shielding cylinder and a cage-shaped structure being comprised of many support bars of first ring, the second ring and first ring and the second interannular, described shielding cylinder engages in one end of shielding cylinder with the second ring of cage-shaped structure, and the other end place of described shielding cylinder is provided with shield flange.
Described bushing insulating cylinder and bushing shield, make between the conductor and sleeve pipe insulating cylinder of described shield in bushing by counter flange Bolt Connection in shield flange and bushing insulating cylinder flange junction.
In technical background, the electric Field Calculation result of a kind of high-tension apparatus use inlet-outlet sleeve that Chinese patent literature CN200810232112.4 mentions as shown in Figure 1, electric Field Calculation result of the present utility model as shown in Figure 2, by contrasting us, can find, electric Field Calculation result of the present utility model has optimized 16% than it, has more excellent insulation property.
Technical characterstic of the present utility model is: considering to design the bushing metallic shield body that comprises first ring, support bar, the second ring, shielding cylinder, shield flange on simple in structure, compact, the reliable basis of insulation property, metallic shield body is contained between conductor and sleeve pipe, by bolted on connection, be fixed on counter flange, counter flange is fixed on insulator by bolted on connection.
The utility model is simple in structure, volume is little, cost is low, easy to assembly, uniform electric field performance is more superior.
Accompanying drawing explanation
Fig. 1 is the electric Field Calculation result of inlet-outlet sleeve for a kind of high-tension apparatus mentioned of Chinese patent literature CN200810232112.4;
Fig. 2 is the utility model electric Field Calculation result;
Fig. 3 is the schematic diagram of the bushing shield in the utility model embodiment;
Fig. 4 is the bushing schematic diagram with shield in the utility model embodiment;
Fig. 5 is the partial enlarged drawing that the shield of A portion in Fig. 4 is connected with sleeve pipe.
Wherein, 1---first ring, 2---support bar, 3---the second ring, 4---shielding cylinder, 5---shield flange, 6---conductor, 7---sleeve pipe insulating cylinder, 8---shield, 9---counter flange, 10---bolted on connection.
Embodiment
As shown in Figure 3, shield, comprise first ring 1, support bar 2, the second ring 3, shielding cylinder 4, shield flange 5, wherein between first ring 1 and the second ring 3, by 4 support bars 2, be welded into cage-shaped structure, the second ring 3 welds with shielding cylinder 4, and shielding cylinder 4 carries out welding forming with shield flange 5.
As shown in Figure 4,5, shield 8 is connected on counter flange 9 by bolted on connection 10, counter flange 9 is fixed on sleeve pipe insulating cylinder 7 by bolted on connection, shield 8 is between conductor 6 and sleeve pipe insulating cylinder 7, play the effect of the electric field of 7 of even conductor 6 and sleeve pipe insulating cylinders, by adjusting the size of first ring, support bar, the second ring, shielding cylinder, shield flange, different electric field strength requirement under applicable different electric pressures.
Claims (2)
1. a bushing shield, it is characterized in that, described shield comprises a shielding cylinder and a cage-shaped structure being comprised of many support bars of first ring, the second ring and first ring and the second interannular, described shielding cylinder engages in one end of shielding cylinder with the second ring of cage-shaped structure, and the other end place of described shielding cylinder is provided with shield flange.
2. a bushing, it is characterized in that, the outside of described bushing is that bushing insulating cylinder, an inside have a bushing shield, described shield comprises a shielding cylinder and a cage-shaped structure being comprised of many support bars of first ring, the second ring and first ring and the second interannular, described shielding cylinder engages in one end of shielding cylinder with the second ring of cage-shaped structure, the other end place of described shielding cylinder is provided with shield flange
Described bushing insulating cylinder and bushing shield, make between the conductor and bushing insulating cylinder of described bushing shield in bushing inside by counter flange Bolt Connection in shield flange and bushing insulating cylinder flange junction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420095660.8U CN203812658U (en) | 2014-03-04 | 2014-03-04 | High-voltage bushing and shielding body thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420095660.8U CN203812658U (en) | 2014-03-04 | 2014-03-04 | High-voltage bushing and shielding body thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203812658U true CN203812658U (en) | 2014-09-03 |
Family
ID=51451380
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420095660.8U Expired - Fee Related CN203812658U (en) | 2014-03-04 | 2014-03-04 | High-voltage bushing and shielding body thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203812658U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103824663A (en) * | 2014-03-04 | 2014-05-28 | 上海思源高压开关有限公司 | High-tension bushing and shield body thereof |
-
2014
- 2014-03-04 CN CN201420095660.8U patent/CN203812658U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103824663A (en) * | 2014-03-04 | 2014-05-28 | 上海思源高压开关有限公司 | High-tension bushing and shield body thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140903 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |