CN103824663A - High-tension bushing and shield body thereof - Google Patents
High-tension bushing and shield body thereof Download PDFInfo
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- CN103824663A CN103824663A CN201410076521.5A CN201410076521A CN103824663A CN 103824663 A CN103824663 A CN 103824663A CN 201410076521 A CN201410076521 A CN 201410076521A CN 103824663 A CN103824663 A CN 103824663A
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- bushing
- ring
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- cylinder
- shielding
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Abstract
The invention relates to a high-tension bushing. A bushing insulating cylinder is arranged outside the high-tension bushing, and the interior of the high-tension bushing is provided with a bushing shied body. The bushing shield body comprises a shielding cylinder and a mouse cage structure consisting of a first ring, a second ring and a plurality of support rods between the first ring and the second ring; the shielding cylinder is jointed with the second ring of the mouse cage structure at one end of the shielding cylinder, a shielding cylinder flange is arranged at the other end of the shielding cylinder, and the bushing insulating cylinder and the bushing shielding body are connected by bolts through a transition flange at the joint of a shielding body flange and the bushing insulating cylinder flange, so that the bushing shielding body is positioned between a conductor inside the high-tension bushing and the bushing insulating cylinder. The bushing shielding body disclosed by the invention has good shielding effect on an electric field distorted region for the gas-insulated high-tension bushing, and is simple in structure and easy to process and assemble.
Description
Technical field
The invention 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, record 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; A kind of double layer screen assembly has been introduced in this invention, it is made up 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.
Summary of the invention
The object of the invention is 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.
Technical scheme of the present invention is, a kind of bushing shield, described shield comprises a shielding cylinder and a cage-shaped structure being made up 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 made up 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 inlet-outlet sleeve that Chinese patent literature CN200810232112.4 mentions as shown in Figure 1, electric Field Calculation result of the present invention as shown in Figure 2, can find by contrasting us, electric Field Calculation result of the present invention has optimized 16% than it, has more excellent insulation property.
Technical characterstic of the present invention is: considering on simple in structure, compact, the reliable basis of insulation property, to design the bushing metallic shield body that comprises first ring, support bar, the second ring, shielding cylinder, shield flange, metallic shield body is contained between conductor and sleeve pipe, be fixed on counter flange by bolted on connection, counter flange is fixed on insulator by bolted on connection.
The present invention 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 a kind of high-tension apparatus inlet-outlet sleeve mentioned of Chinese patent literature CN200810232112.4;
Fig. 2 is electric Field Calculation result of the present invention;
Fig. 3 is the schematic diagram of the bushing shield in the embodiment of the present invention;
Fig. 4 is the bushing schematic diagram with shield in the embodiment of the present invention;
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, be welded into cage-shaped structure by 4 support bars 2, 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 between even conductor 6 and sleeve pipe insulating cylinder 7, 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 made up 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 made up 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 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 |
|---|---|---|---|
| CN201410076521.5A CN103824663A (en) | 2014-03-04 | 2014-03-04 | High-tension bushing and shield body thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410076521.5A CN103824663A (en) | 2014-03-04 | 2014-03-04 | High-tension bushing and shield body thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103824663A true CN103824663A (en) | 2014-05-28 |
Family
ID=50759667
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410076521.5A Pending CN103824663A (en) | 2014-03-04 | 2014-03-04 | High-tension bushing and shield body thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103824663A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107170539A (en) * | 2017-03-22 | 2017-09-15 | 特变电工中发上海高压开关有限公司 | A kind of 800kV sleeve pipes with apical ring shielding construction |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6218627B1 (en) * | 1998-02-04 | 2001-04-17 | Hitachi, Ltd. | Bushing |
| CN101404393A (en) * | 2008-11-05 | 2009-04-08 | 中国西电电气股份有限公司 | Incoming/outgoing line inflation casing tube for high-voltage switch gear |
| CN202473442U (en) * | 2012-02-29 | 2012-10-03 | 山东泰开高压开关有限公司 | Voltage equalizing shielding cylinder of porcelain bushing conductor |
| CN203013426U (en) * | 2011-12-06 | 2013-06-19 | 江苏神马电力股份有限公司 | 550kV low-pressure SF6 gas insulation composite bushing |
| CN203812658U (en) * | 2014-03-04 | 2014-09-03 | 上海思源高压开关有限公司 | High-voltage bushing and shielding body thereof |
-
2014
- 2014-03-04 CN CN201410076521.5A patent/CN103824663A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6218627B1 (en) * | 1998-02-04 | 2001-04-17 | Hitachi, Ltd. | Bushing |
| CN101404393A (en) * | 2008-11-05 | 2009-04-08 | 中国西电电气股份有限公司 | Incoming/outgoing line inflation casing tube for high-voltage switch gear |
| CN203013426U (en) * | 2011-12-06 | 2013-06-19 | 江苏神马电力股份有限公司 | 550kV low-pressure SF6 gas insulation composite bushing |
| CN202473442U (en) * | 2012-02-29 | 2012-10-03 | 山东泰开高压开关有限公司 | Voltage equalizing shielding cylinder of porcelain bushing conductor |
| CN203812658U (en) * | 2014-03-04 | 2014-09-03 | 上海思源高压开关有限公司 | High-voltage bushing and shielding body thereof |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107170539A (en) * | 2017-03-22 | 2017-09-15 | 特变电工中发上海高压开关有限公司 | A kind of 800kV sleeve pipes with apical ring shielding construction |
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Legal Events
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20140528 |
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| RJ01 | Rejection of invention patent application after publication |