CN202917270U - Extra-high voltage type bushing - Google Patents
Extra-high voltage type bushing Download PDFInfo
- Publication number
- CN202917270U CN202917270U CN 201220556977 CN201220556977U CN202917270U CN 202917270 U CN202917270 U CN 202917270U CN 201220556977 CN201220556977 CN 201220556977 CN 201220556977 U CN201220556977 U CN 201220556977U CN 202917270 U CN202917270 U CN 202917270U
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- Prior art keywords
- insulator
- high voltage
- guide rod
- extra
- utility
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- 239000012212 insulator Substances 0.000 claims abstract description 55
- 238000004519 manufacturing process Methods 0.000 abstract description 11
- 230000005684 electric field Effects 0.000 abstract description 7
- 238000004364 calculation method Methods 0.000 abstract description 3
- 238000005516 engineering process Methods 0.000 abstract description 3
- 229910052573 porcelain Inorganic materials 0.000 description 13
- 238000009422 external insulation Methods 0.000 description 9
- 238000010586 diagram Methods 0.000 description 6
- 230000005540 biological transmission Effects 0.000 description 3
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 238000010292 electrical insulation Methods 0.000 description 1
- 229910010272 inorganic material Inorganic materials 0.000 description 1
- 239000011147 inorganic material Substances 0.000 description 1
- 238000009527 percussion Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
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Abstract
The utility model relates to an extra-high voltage type bushing. The extra-high voltage type bushing comprises a wire connection terminal, a guide rod which is connected with the wire connection terminal, and an insulator which is located outside the guide rod. The lower portion of the insulator is provided with a connection flange which is connected with an electrical equipment housing, and an insulating medium layer is arranged between the guide rod and the insulator, wherein the insulator is formed by connecting at least two insulator components. According to the utility model, the whole outer insulator is divided into several independent insulators, the independent insulators are manufactured separately and then are serially connected together for use, the insulator which is formed by serially connecting the independent insulators has advantages of reduced maximum stress and improved mechanical strength. According to the electric field calculation data, no distortion occurs in the electric field cloud chart, so the electrical performance of the insulator which is formed by serially connecting the independent insulators can also be ensured. According to the technology of the utility model, the problem that the whole outer insulator has the disadvantage of poor mechanical strength with conventional extra-high voltage type bushings can be solved, and the height of the required insulator which is formed by serially connecting independent insulators can be determined according to the manufacturing experience and equipment size, so the manufacturing cost is reduced.
Description
Technical field
The utility model relates to a kind of electric elements, is specifically related to a kind of ultra high voltage sleeve pipe.
Background technology
Traditional ultra high voltage outlet casing tube comprises guide rod 1 referring to Fig. 1, is positioned at the insulator 2 in guide rod 1 outside,
Be provided with flange 3 in the bottom of insulator 2, usually adopt whole insulator as its external insulation.Along with the raising of power transmission and transformation industry electric pressure, the size of bushing external insulation is increasing.In recent years, be the ultra high voltage sleeve pipe that the requirement of satisfying UHV transmission is made, insulation height surpasses 9 meters, and weight reaches 2 tons.With the raising of sleeve pipe electric pressure, system all has higher requirement to electric property, the mechanical performance of ultra high voltage sleeve pipe.
The insulating sleeve electric property raises and often can satisfy by reasonably increasing size, and still, the sleeve pipe overall mechanical properties not only can not strengthen along with the increase of size, also can descend along with the increase of size on the contrary.Insulator should tolerate the percussion of high electric field as the external insulation of outlet casing tube, simultaneously or the protection container of built-in electrical insulation medium, need to bear the effect of high air pressure inside.By force analysis as can be known, the link that whole joint porcelain piece mechanical strength is the weakest is in the porcelain piece middle part.Therefore, on UHV transmission, occur causing its mechanical performance to be difficult to satisfy electric power system itself to the sleeve pipe requirement of mechanical strength because insulation size increases.
The porcelain piece manufacturing process is complicated, and operation is various, generally includes that green compact manufacturing and correction of the flank shape, porcelain piece are burnt till, grinding, bonding etc.The ultra high voltage porcelain piece generally is to finish by inorganic adhesive after merogenesis burns till.The inorganic adhesive technology is the more piece porcelain piece by inorganic material kiln outer engagement, and after size reached 9 meters, integral body was sent into kiln and finished bondingly, and bonding kiln is bulky, and cost is high.
The utility model content
The utility model discloses a kind of ultra high voltage sleeve pipe, in order to solve the obvious contradiction that reduces of the mechanical strength that highlights along with the increase of external insulation size in the extra-high voltage grid, the while is manufacture difficulty and the manufacturing cost in order to reduce external insulation also.
Concrete technical scheme of the present utility model is as follows:
A kind of ultra high voltage sleeve pipe, comprise binding post, the guide rod that is connected with this binding post, be positioned at the insulator in the guide rod outside, be provided with the adpting flange that is connected with the power equipment housing in the bottom of insulator, be provided with insulating medium layer between described guide rod and the insulator, insulator is formed by connecting by at least two insulator parts.
From manufacturing cost and actual required consideration, described insulator is formed by connecting by 2-3 insulator parts generally speaking.
Be formed by connecting by flange between insulator parts and the insulator parts.
The length of described insulator is 7～10m, and insulator length is the most suitable in this scope.
The utility model is divided into several independent porcelain pieces with whole external insulation porcelain piece to be made separately, then is connected in series use, and the suffered maximum stress of porcelain piece descends after the serial connection, and mechanical strength improves.According to as can be known electric field cloud atlas and the undistorted appearance of electric Field Calculation data, its electric property still can guarantee after the serial connection.The art of this patent has solved whole low problem of external insulation mechanical strength of conventional ultra high voltage sleeve pipe, and required serial connection porcelain piece height can be determined voluntarily according to manufacturing experience and equipment size, reduces manufacturing cost.
Description of drawings
Fig. 1 is the structural representation of ultra high voltage sleeve pipe in the prior art;
Fig. 2 is the structural representation of the utility model ultra high voltage sleeve pipe;
Fig. 3 a is the stressed schematic diagram of insulator inwall of ultra high voltage sleeve pipe in the prior art;
Fig. 3 b is the inner moment of flexure schematic diagram of the insulator of ultra high voltage sleeve pipe in the prior art;
Fig. 3 c is the insulator internal stress schematic diagram of ultra high voltage sleeve pipe in the prior art;
Fig. 4 a is the stressed schematic diagram of insulator inwall of the utility model ultra high voltage sleeve pipe;
Fig. 4 b is the inner moment of flexure schematic diagram of the insulator of the utility model ultra high voltage sleeve pipe;
Fig. 4 c is the insulator internal stress schematic diagram of the utility model ultra high voltage sleeve pipe.
Embodiment
Further specify the utility model below in conjunction with accompanying drawing.
Referring to Fig. 2, a kind of ultra high voltage sleeve pipe, comprise binding post 4, the guide rod 5 that is connected with this binding post 4, be positioned at the insulator 7 in guide rod 5 outsides, the length of insulator 7 is 7～10m, be provided with adpting flange 8 in the bottom of insulator 7, adpting flange 8 is connected with GIS housing 9, and the GIS housing also can change other power equipment housings into.Be provided with insulating medium layer 6 between described guide rod 5 and the insulator 7, described dielectric can be insulating gas, and insulator is formed by connecting by flange 10 by two insulator parts.
The utility model is divided into several independently insulator parts with whole external insulation porcelain piece to be made separately, and serial connection is used.By force analysis among Fig. 3 and Fig. 4 as can be known, the suffered maximum stress of porcelain piece descends after the serial connection, and mechanical strength improves.And through electric Field Calculation data as can be known, electric field cloud atlas and the undistorted appearance of the insulator that is formed by insulator parts serial connection, rear its electric property of serial connection still can guarantee.The art of this patent has solved whole low problem of external insulation mechanical strength of conventional ultra high voltage sleeve pipe, and required serial connection porcelain piece height can be determined voluntarily according to manufacturing experience and equipment size, reduces manufacturing cost.
Claims (4)
1. ultra high voltage sleeve pipe, comprise binding post, the guide rod that is connected with this binding post, be positioned at the insulator in the guide rod outside, be provided with the adpting flange that is connected with the power equipment housing in the bottom of insulator, it is characterized in that being provided with insulating medium layer between described guide rod and the insulator, insulator is formed by connecting by at least two insulator parts.
2. ultra high voltage sleeve pipe according to claim 1 is characterized in that described insulator is formed by connecting by 2-3 insulator parts.
3. ultra high voltage sleeve pipe according to claim 1 and 2 is characterized in that being formed by connecting by flange between insulator parts and the insulator parts.
4. ultra high voltage sleeve pipe according to claim 1, the length that it is characterized in that described insulator is 7～10m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220556977 CN202917270U (en) | 2012-10-26 | 2012-10-26 | Extra-high voltage type bushing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220556977 CN202917270U (en) | 2012-10-26 | 2012-10-26 | Extra-high voltage type bushing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202917270U true CN202917270U (en) | 2013-05-01 |
Family
ID=48165559
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220556977 Expired - Fee Related CN202917270U (en) | 2012-10-26 | 2012-10-26 | Extra-high voltage type bushing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202917270U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106205980A (en) * | 2016-08-22 | 2016-12-07 | 江苏智达高压电气有限公司 | A kind of extra-high-voltage alternating current bushing shell for transformer |
| WO2018032716A1 (en) * | 2016-08-15 | 2018-02-22 | 江苏智达高压电气有限公司 | Ultra-high voltage wall bushing with sf6 gas insulation |
| WO2018036082A1 (en) * | 2016-08-22 | 2018-03-01 | 江苏智达高压电气有限公司 | Ultra-high-voltage direct current wall bushing |
-
2012
- 2012-10-26 CN CN 201220556977 patent/CN202917270U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018032716A1 (en) * | 2016-08-15 | 2018-02-22 | 江苏智达高压电气有限公司 | Ultra-high voltage wall bushing with sf6 gas insulation |
| EP3499666A4 (en) * | 2016-08-15 | 2019-06-26 | Jiangsu Zhida High-Voltage Electrical Co. Ltd. | VERY HIGH VOLTAGE WALL THROUGH WITH SF6 GAS INSULATION |
| CN106205980A (en) * | 2016-08-22 | 2016-12-07 | 江苏智达高压电气有限公司 | A kind of extra-high-voltage alternating current bushing shell for transformer |
| WO2018036082A1 (en) * | 2016-08-22 | 2018-03-01 | 江苏智达高压电气有限公司 | Ultra-high-voltage direct current wall bushing |
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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: 20130501 Termination date: 20151026 |
|
| EXPY | Termination of patent right or utility model |