CN202512973U - 550kV basin type insulator insert - Google Patents
550kV basin type insulator insert Download PDFInfo
- Publication number
- CN202512973U CN202512973U CN2012201354635U CN201220135463U CN202512973U CN 202512973 U CN202512973 U CN 202512973U CN 2012201354635 U CN2012201354635 U CN 2012201354635U CN 201220135463 U CN201220135463 U CN 201220135463U CN 202512973 U CN202512973 U CN 202512973U
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- Prior art keywords
- projection
- conductive electrode
- radome
- bump
- type insulator
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- Expired - Fee Related
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Abstract
The utility model relates to a 550kV basin type insulator insert, which comprises a cylindrical conductive electrode, a bump and a shielding cover, wherein annular grooves are formed along the circumference of the conductive electrode; the annular bump is arranged in the middle of the circumference of the conductive electrode; the outer part of the bump is arc-shaped, the inner part of the bump is connected with the conductive electrode, and a joint of the inner part of the bump and the conductive electrode is in a sharp-angle-free circular arc transition shape; the shielding cover is sleeved outside the bump and connected with the bump through a screw; and a clearance is reserved between the outer arc-shaped end of the bump and the inner wall of the shielding cover. The 550kV basin type insulator insert has the characteristics of simple and reasonable structure, high sealing performance and uniform electric field.
Description
Technical field
The utility model relates to a kind of novel 550kV disc insulator inserts.
Background technology
The support of greatly developing too busy to get away electric energy of national economy.Owing to reasons such as the land used anxiety of urban planning and land price rises; The demand of the more and more incompatible development of prior open power plant construction, and the combined electrical apparatus of sealing is little owing to floor space, power supply is reliable; Do not receive characteristics such as external environmental interference, be applied to gradually in the power grid construction in city.In order to reduce the loss of electric energy in the transmission of electricity process, need transmission line be improved the transmission of electricity grade, at present interconnected 550kV that adopt of electrical network more.Because 550kV transmission line electric pressure is high, the power supply energy is big, in case the 550kV circuit breaks down, coverage is extremely wide, and is therefore, very strict to the insulating part requirement of combined electrical apparatus.
The insulating part design of High-Voltage Electrical Appliances not only needs enough insulation distances, for its inside and also very strict along the Electric Field Distribution requirement of face.In High-Voltage Electrical Appliances, in order to realize the separation of air chamber, and the support that realizes conductor, need a large amount of disc insulators.Therefore, how disc insulator designs, and its shape and inner insert structure become very important.The inserts of disc insulator needs and epoxy resin is combined closely, otherwise, when mechanically stressed, causing occurring the gap probably, gas flows through from the gap, the separation air chamber disabler of disc insulator, for this reason, the surface of inserts is uneven, and groove is arranged more.But, say from another point of view, when the inserts of design disc insulator; Also need consider the electric field that insulator is inner, being uneven of inserts can cause the inner electric field strength of insulator higher, when withstand voltage; Cause its internal breakdown probably, thereby cause failure of insulation, cause electric power accident.Therefore, the inserts of suitable design insulator is most important.
Summary of the invention
The utility model provides a kind of simple and reasonable for structure in order to overcome above-mentioned defective, has the 550kV disc insulator inserts of high sealing performance and uniform electric field.
The technical scheme that the utility model adopts is: a kind of 550kV disc insulator inserts; Comprise the cylindrical conductive utmost point, annular groove is arranged, it is characterized in that: also comprise projection and radome along distributed and arranged on the periphery of conductive electrode; Medium position along the conductive electrode periphery is provided with annular lug; The projection outside is curved, and projection is inboard to be connected with conductive electrode, and its junction is the arc transition shape of no wedge angle; Be provided with radome in the projection outer cover, radome is connected with projection through screw, and the outer arcuate end and the radome inwall of projection leave the gap.
Described radome is a toroidal shell, and in the cross section of radome, its outside is circular arc, and conductive electrode all is close to by its two inboard limit portions, and one of them limit portion is provided with some screws and is connected with projection.
It is the ring-shaped groove on the conductive electrode that the utility model has kept the conventional insulators inserts, guarantees and epoxy bond, forms sealing surface; Stop the SF6 gas flow, the while is provided with radome at the medium position of the fluted periphery that distributes again, utilizes radome to form the shielding to groove; Reduce the electric field strength at groove place, it is that radome is installed for ease that projection is set, and radome and conductive electrode are connected firmly; Be convenient to make and install, also help uniform electric field.
Description of drawings
Fig. 1 is the sketch map of the utility model.
Embodiment
Combine accompanying drawing that the utility model is further described at present; Fig. 1 is a kind of embodiment of the utility model, comprises the cylindrical conductive utmost point 3, projection 2 and radome 1, and the groove of annular is arranged along distributed and arranged on the periphery of conductive electrode 3; Medium position along conductive electrode 3 peripheries is provided with annular lug 2; Projection 2 outsides are curved, and projection 2 inboards are connected with conductive electrode 3, and its junction is the arc transition shape of no wedge angle.Be provided with radome 1 in projection 2 outer cover, radome 1 covers in its inside with projection 2, and radome 1 is connected with projection 2 through screw, and the outer arcuate end of projection 2 and radome 1 inwall leave the gap.Radome 1 in the present embodiment is a toroidal shell, and in the cross section of radome 1, its outside is circular arc, and conductive electrode 3 all is close to by its two inboard limit portions, and one of them limit portion is provided with some screws and is connected with projection 2.
The utility model is the ring-shaped groove on the conductive electrode 3 owing to having kept the conventional insulators inserts, guarantees and epoxy bond, forms sealing surface; Stop the SF6 gas flow; Sealing is reliable, and the while is provided with radome 1 at the medium position of the fluted periphery that distributes again, the shielding that utilizes radome 1 to form groove; Reduce the electric field strength at groove place, improved the reliability of insulator and the stability of equipment; It is that radome 1 is installed for ease that projection 2 is set, and radome 1 and conductive electrode 3 are connected firmly, and is convenient to make and install, and also helps uniform electric field.
The utlity model has simple and reasonable for structurely, have the characteristics of high sealing performance and uniform electric field.
Claims (2)
1. 550kV disc insulator inserts; Comprise the cylindrical conductive utmost point, annular groove is arranged, it is characterized in that: also comprise projection and radome along distributed and arranged on the periphery of conductive electrode; Medium position along the conductive electrode periphery is provided with annular lug; The projection outside is curved, and projection is inboard to be connected with conductive electrode, and its junction is the arc transition shape of no wedge angle; Be provided with radome in the projection outer cover, radome is connected with projection through screw, and the outer arcuate end and the radome inwall of projection leave the gap.
2. 550kV disc insulator inserts according to claim 1; It is characterized in that: described radome is a toroidal shell, and in the cross section of radome, its outside is circular arc; Conductive electrode all is close to by its two inboard limit portions, and one of them limit portion is provided with some screws and is connected with projection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201354635U CN202512973U (en) | 2012-03-31 | 2012-03-31 | 550kV basin type insulator insert |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201354635U CN202512973U (en) | 2012-03-31 | 2012-03-31 | 550kV basin type insulator insert |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202512973U true CN202512973U (en) | 2012-10-31 |
Family
ID=47065437
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012201354635U Expired - Fee Related CN202512973U (en) | 2012-03-31 | 2012-03-31 | 550kV basin type insulator insert |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202512973U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108364730A (en) * | 2018-02-01 | 2018-08-03 | 清华大学 | Screening electrodes in disc insulator based on nonlinear material |
| CN112670041A (en) * | 2020-11-20 | 2021-04-16 | 华北电力大学 | Ceramic post insulator assembly for gas insulated high voltage electrical equipment |
-
2012
- 2012-03-31 CN CN2012201354635U patent/CN202512973U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108364730A (en) * | 2018-02-01 | 2018-08-03 | 清华大学 | Screening electrodes in disc insulator based on nonlinear material |
| CN112670041A (en) * | 2020-11-20 | 2021-04-16 | 华北电力大学 | Ceramic post insulator assembly for gas insulated high voltage electrical equipment |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121031 Termination date: 20180331 |