CN205582641U - Benzvalene form insulator flange gap air shielding structure - Google Patents
Benzvalene form insulator flange gap air shielding structure Download PDFInfo
- Publication number
- CN205582641U CN205582641U CN201620406541.9U CN201620406541U CN205582641U CN 205582641 U CN205582641 U CN 205582641U CN 201620406541 U CN201620406541 U CN 201620406541U CN 205582641 U CN205582641 U CN 205582641U
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- China
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- flange
- benzvalene form
- pour mass
- grounding shell
- encapsulating semiconductor
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Abstract
The utility model discloses an insulating nature flange gap air shielding structure of benzvalene form, including grounding shell, flange, semiconductor sealing washer and the pouring body, wherein, flange and pouring body mechanical connection, the upper and lower both ends of the pouring body have two clamping ring recesses for place two semiconductor sealing washers, and the upper and lower both ends of the pouring body are located to the grounding shell, with pouring body bolted connection, be connected with semiconductor sealing washer electricity simultaneously, the grounding shell still with flange mechanical connection. This kind of simple structure can effectively eliminate the terminal partial discharge's of benzvalene form insulator phenomenon, improves the use reliability of benzvalene form insulator.
Description
Technical field
This utility model belongs to the field of switches in power equipment, particularly to a kind of disc insulator flange slot air screen shield structure.
Background technology
GIS is widely used in grid power transmission part due to advantages such as its floor space are little, power transmission section is allocated as the basic routing line into electrical network, can it directly influence the operational reliability of whole electrical network by reliability service, disc insulator is as the primary insulation body of GIS, and can the quality of its insulating properties directly influences GIS reliability service.The monitoring of shelf depreciation is to weigh the important indicator that disc insulator is the most properly functioning.Existing disc insulator part uses extraneous metal outer ring and built-in shielding internal ring; owing to bolt clipping forcee can be moved on to aluminum matter outer ring from insulating flange by metal outer ring and shielding internal ring; the protection the most assembled bolt of disc insulator damages by pressure; but due to disc insulator after being cast due to natural shrinking; gap is formed between external metallization outer ring and pour mass; and this intersegmental gap is air (electric discharge of air is critical low, as long as 3kV/mm) in actual motion.Owing to installing and in transportation, owing to rocking of disc insulator causes this section of non-uniform air-gap to cause shelf depreciation, and this phenomenon is particularly acute for disc insulator uses partly shielding effect internal ring.Although can reach to eliminate bubble-discharge by regulation air-gap separation, but troublesome poeration and unreliable.And, if air gap is the least, do not meet design requirement, then there will be above-mentioned control method and lost efficacy, disc insulator end air gap portion atmospherical discharges can be caused to affect the properly functioning of product.Existing shielding construction is to be modified in the internal structure producing new product mostly, that those have been produced, make disc insulator fault because of end shelf depreciation for, discarded because being modified again from inside, cause waste greatly, so studying a kind of the most effective, easy to use and general good end shielding structure have very much the meaning of reality.
Utility model content
The purpose of this utility model, is to provide a kind of disc insulator flange slot air screen shield structure, its simple in construction, it is possible to effectively eliminate the phenomenon of disc insulator end shelf depreciation, improve the dependability of disc insulator.
In order to reach above-mentioned purpose, solution of the present utility model is:
A kind of benzvalene form insulating properties flange slot air screen shield structure, including grounding shell, flange, encapsulating semiconductor circle and pour mass, wherein, flange is mechanically connected with pour mass, the two ends up and down of described pour mass have two pressure ring grooves, and for placing two encapsulating semiconductor circles, and grounding shell is located at the two ends up and down of pour mass, it is connected with pour mass bolt, electrically connects with encapsulating semiconductor circle simultaneously；Described grounding shell is also mechanically connected with flange.
Above-mentioned flange is mechanically connected with pour mass by bolt.
Above-mentioned encapsulating semiconductor circle uses software quasiconductor.
After using such scheme, after this utility model is by changing traditional rubber seal into encapsulating semiconductor circle, by encapsulating semiconductor circle to be contacted electrical connection with grounding shell, making encapsulating semiconductor circle current potential is 0, form grounded shield, optimize the air electric field in gap between disc insulator flange and insulator pour mass, eliminate the phenomenon of end shelf depreciation.Owing to this structure is applicable to all insulators with sealed groove, versatility is good, and it is easy to use, only traditional sealing ring encapsulating semiconductor circle need to be substituted, the optimization to end air gap portion air electric field can be realized, eliminate the phenomenon of insulator end shelf depreciation, considerably increase the electric life of disc insulator and the qualification rate of product, improve the dependability of disc insulator.
Accompanying drawing explanation
Fig. 1 is schematic appearance of the present utility model；
Fig. 2 is assembled sectional view of the present utility model.
Air electric Field Calculation schematic diagram between the thickness of difference gap when Fig. 3 is to use tradition General Purpose Rubber sealing ring；
Air electric Field Calculation schematic diagram between the thickness of difference gap when Fig. 4 is to use this utility model；
Fig. 5 is the result of calculation comparison diagram between Fig. 3 and Fig. 4.
Detailed description of the invention
Below with reference to accompanying drawing, the technical solution of the utility model is described in detail.
As depicted in figs. 1 and 2, this utility model provides a kind of benzvalene form insulating properties flange slot air screen shield structure, including grounding shell 1, flange 3, bolt inserts 2, encapsulating semiconductor circle 4 and pour mass 5, wherein, flange 3 is mechanically connected with pour mass 5 by bolt, the two ends up and down of described pour mass 5 have two pressure ring grooves, for placing two encapsulating semiconductor circles 4, and grounding shell 1 is located at the two ends up and down of pour mass 5, it is connected with pour mass 5 bolt, electrically connect with encapsulating semiconductor circle 4 simultaneously, thus form grounded shield, when the bolts are tightened, realize encapsulating semiconductor circle 4 and pour mass 5, encapsulating semiconductor circle 4 and the seamless link of grounding shell 1, gas is isolated；Described grounding shell 1 is mechanically connected with flange 3 also by bolt inserts 2.
Wherein, encapsulating semiconductor circle 4 can use software quasiconductor.
When implementing, when disc insulator is provided without above-mentioned shielding construction, when i.e. sealing ring uses General Purpose Rubber sealing ring, owing to the air gap between flange and pour mass causes air gap skewness because installation is incorrect；The present embodiment calculates by arranging the minimal air gap thickness (1.5mm, 1.3mm, 1.1mm, 0.9mm, 0.7mm, 0.5mm, 0.3mm, 0.1mm) of 8 grades, the result obtained is as shown in Figure 3, when wherein minimal air gap thickness is less than 0.7, its maximum field intensity values all exceedes air critical electric discharge field intensity value 3kV/mm, design defective, can cause this position that shelf depreciation occurs, affect the ex factory pass rate of disc insulator and properly functioning reliability.And after using shielding construction of the present utility model, after i.e. sealing ring uses encapsulating semiconductor circle, owing to encapsulating semiconductor circle conducts electricity, after contacting with grounding shell, the overall current potential of encapsulating semiconductor circle is 0, be equivalent to form one shield, optimizing tip gap air electric field, its electric Field Calculation result as shown in Figure 4, is using after encapsulating semiconductor circle, the maximum field intensity values of all air gap thicknesses is respectively less than air critical electric discharge field intensity value 3kV/mm, reaches qualified design standard.Can be obtained by Fig. 5, compared with traditional design (i.e. using General Purpose Rubber sealing ring), (encapsulating semiconductor circle is used) after using this utility model, can significantly optimize the air gap electric field between flange (disc insulator external metallization circle) and pour mass, solve flange incorrect because installing, cause air between flange and pour mass gap because of skewness the problem of the insulator end local air electric discharge such as electric discharge, add the electric life of disc insulator and produce qualification rate, improving disc insulator dependability and productivity effect.
Above example only illustrates technological thought of the present utility model; protection domain of the present utility model can not be limited with this; every according to the technological thought that the utility model proposes, any change done on the basis of technical scheme, within each falling within this utility model protection domain.
Claims (3)
1. a benzvalene form insulating properties flange slot air screen shield structure, it is characterized in that: include grounding shell, flange, encapsulating semiconductor circle and pour mass, wherein, flange is mechanically connected with pour mass, the two ends up and down of described pour mass have two pressure ring grooves, and for placing two encapsulating semiconductor circles, and grounding shell is located at the two ends up and down of pour mass, it is connected with pour mass bolt, electrically connects with encapsulating semiconductor circle simultaneously；Described grounding shell is also mechanically connected with flange.
2. a kind of benzvalene form insulating properties flange slot air screen shield structure as claimed in claim 1, it is characterised in that: described flange is mechanically connected with pour mass by bolt.
3. a kind of benzvalene form insulating properties flange slot air screen shield structure as claimed in claim 1, it is characterised in that: described encapsulating semiconductor circle uses software quasiconductor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620406541.9U CN205582641U (en) | 2016-05-06 | 2016-05-06 | Benzvalene form insulator flange gap air shielding structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620406541.9U CN205582641U (en) | 2016-05-06 | 2016-05-06 | Benzvalene form insulator flange gap air shielding structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205582641U true CN205582641U (en) | 2016-09-14 |
Family
ID=56856467
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620406541.9U Expired - Fee Related CN205582641U (en) | 2016-05-06 | 2016-05-06 | Benzvalene form insulator flange gap air shielding structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205582641U (en) |
-
2016
- 2016-05-06 CN CN201620406541.9U patent/CN205582641U/en not_active Expired - Fee Related
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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: 20160914 Termination date: 20190506 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |