CN202058538U - Ceramic-silicone rubber compounded insulting low-voltage transformer sleeve - Google Patents
Ceramic-silicone rubber compounded insulting low-voltage transformer sleeve Download PDFInfo
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- CN202058538U CN202058538U CN2010202130238U CN201020213023U CN202058538U CN 202058538 U CN202058538 U CN 202058538U CN 2010202130238 U CN2010202130238 U CN 2010202130238U CN 201020213023 U CN201020213023 U CN 201020213023U CN 202058538 U CN202058538 U CN 202058538U
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- sleeve
- silicone rubber
- ceramic
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- silicon rubber
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Abstract
The utility model provides a ceramic-silicone rubber compounded insulting low-voltage transformer sleeve integrating the advantages of pure-ceramic low-voltage (35kV and below) transformer sleeve and the external insulation of silicone rubber. The novel sleeve has the advantages of the internal insulation of normal pure ceramic sleeve, such as having strong corona resistance and avoiding monitoring capacitance, and also has the advantages of the external insulation of the silicone rubber, such as difficult breakage, good hydrophobicity, strong anti-fouling flashover performance, less maintenance and the like, belonging to the technical field of high-voltage engineering of electrical engineering. The traditional pure ceramic low-voltage transformer sleeve is cumbersome and easy to break and generate fouling flashover accident, and has surface hydrophile, large cleaning and maintenance quantity and other defects. In order to solve the problems, the process that the silicone rubber external sheath (3) is sheathed outside the ceramic sleeve (2) is creatively adopted so that the sleeve keeps the original advantages of the pure ceramic sleeve such as high mechanical strength, strong corona resistance and low cost, and can also effectively have the advantage that the silicone rubber is used as the external insulation.
Description
Technical field:
The present invention relates to a kind of the inner high and low pressure of transformer be guided to the porcelain-silicon rubber compound inslation low-tension transformer sleeve pipe of fuel tank outside, except that function, also have the plurality of advantages of silicon rubber external insulation with common true procelain bushing shell for transformer.
Background technology:
At present, known 35kV and following bushing shell for transformer are mainly true procelain noncapacitive type bushing shell for transformer.Shortcomings such as true procelain noncapacitive type bushing shell for transformer has the mechanical strength height, anti-corona ability is strong, cost is low, have heaviness when not needing to monitor the advantage of capacitance, frangible, surface is hydrophily, easily produce pollution flashover accident, the cleaning maintenance is big.So need a kind of substitute products that on the basis that keeps true procelain sleeve pipe advantage, overcome its shortcoming.
35kV and following porcelain-silicon rubber compound inslation low-tension transformer sleeve pipe be exactly we under above-mentioned technical background, the new casing of inventing on the basis of the pluses and minuses of analysis-by-synthesis insulator, silastic material and technology.
Summary of the invention:
Purpose of the present invention, aim to provide a kind of porcelain-silicon rubber compound inslation low-tension transformer sleeve pipe, this sleeve pipe is by a cover conducting rod assembly, transformer oil, a flange assembly, an insulator, a cover silicon rubber oversheath is formed, described silicon rubber oversheath is set on the insulator, and flange assembly top keeps a porcelain umbrella.
Consistent with traditional true procelain noncapacitive type bushing shell for transformer is described conducting rod current-carrying structure as sleeve pipe current-carrying original paper, the oily porcelain insulating structure as interior insulation, the installation and the hermetically-sealed construction of spacer flanger.Different with traditional true procelain bushing shell for transformer is: adopt the external insulation of silicon rubber oversheath as sleeve pipe.
Above-mentioned porcelain-silicon rubber compound inslation low-tension transformer sleeve pipe to install and use mode as follows: sleeve pipe is installed on the transformer by flange, guarantee that with sealing ring sealing between sleeve pipe and the transformer, the mounting means of flange can select wherein a kind of in presser feet and the bolt for use.The conduit connection mode is as follows: no matter sleeve pipe oil end is got the terminal block surface size terminal block corresponding with the bolt hole size with outdoor, and the bolt of using appropriate size is with fastening sturdy the getting final product of two boards.Treat the sleeve pipe installation, unscrew sleeve pipe outdoor end bleeder screw, treated that transformer oil tightens bleeder screw when bleeder screw stays.
The beneficial effects of the utility model are, utilize the material behavior of silicon rubber, successfully at the outside suit silicon rubber of insulator oversheath, product is had be difficult for broken, hydrophobicity is good, anti-soil dodges the ability height, fewly safeguard, advantage such as simple in structure, easy for installation.
Description of drawings:
Fig. 1 is the cutaway view of a kind of embodiment of the present invention.
Embodiment:
Below in conjunction with above-mentioned accompanying drawing 1, describe the present invention in detail.
Referring to Fig. 1, wherein shown a kind of according to porcelain of the present invention-silicon rubber compound inslation low-tension transformer sleeve pipe embodiment, comprise one the cover conducting rod assembly (1), an insulator (2), a silicon rubber oversheath (3), transformer oil (4) and a cover flange assembly (5).
Wherein conducting rod assembly (1) is by conducting electricity wire clamp (11), copper nut (12), glue pearl gland (13), sealant bead (14), venting neck (15), sealing square circle (16), bleeder screw (17) and conducting rod (18) composition.
Wherein flange assembly (5) is made up of aluminium matter flange (51) and sealant bead (52).
Conducting rod assembly (1) is divided into 8 parts, and is the same with the true procelain bushing shell for transformer, and these 8 parts are realized the smooth realization of passing through smoothly of casing current and bobbin seal jointly, and the present invention does not innovate at this place.
Great innovative point of the present invention is insulator (2) and silicon rubber oversheath (3), silicon rubber oversheath (3) is wrapped in insulator (2) wherein, only expose the distance of a umbrella bottom, the insulation clear distance of sleeve pipe and creepage distance are all provided by silicon rubber oversheath (3).Promptly use the porcelain umbrella of silicon rubber instead of pure porcelain bushing, make the sleeve pipe exposed parts become silicon rubber, shielded many shortcomings of porcelain by porcelain.
Sleeve pipe itself is not with transformer oil (4), but before the sleeve pipe operation, unclasps gas bolt (17) earlier, makes inside pipe casing be full of transformer oil (4).Conducting rod assembly (1) band high voltage in the sleeve pipe running, transformer oil (4) is born most of voltage, and all the other voltages are born jointly by insulator and silicon rubber; In the axial direction, nearly all voltage is all born by silicon rubber oversheath (3).
Flange assembly (5) top to porcelain umbrella lower part is all brushed semi-conducting glaze, and shielding flange and construction bolt guarantee the partial discharge quantity of sleeve pipe is controlled in the 10pC.
The foregoing description and is not a limitation of the present invention only for explanation be convenient to understand the present invention, and protection scope of the present invention should be limited by each claim.
Claims (2)
1. porcelain-silicon rubber compound inslation low-tension transformer sleeve pipe, comprise conducting rod assembly (1), transformer oil (4) and flange assembly (5), it is characterized in that it also comprises insulator (2), silicon rubber oversheath (3), described silicon rubber oversheath (3) is set on the insulator (2), and flange assembly (5) top keeps a porcelain umbrella.
2. porcelain as claimed in claim 1-silicon rubber compound inslation low-tension transformer sleeve pipe is characterized in that: flange assembly (5) top to porcelain umbrella lower part is brushed with semi-conducting glaze.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202130238U CN202058538U (en) | 2010-06-03 | 2010-06-03 | Ceramic-silicone rubber compounded insulting low-voltage transformer sleeve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202130238U CN202058538U (en) | 2010-06-03 | 2010-06-03 | Ceramic-silicone rubber compounded insulting low-voltage transformer sleeve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202058538U true CN202058538U (en) | 2011-11-30 |
Family
ID=45018504
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202130238U Expired - Lifetime CN202058538U (en) | 2010-06-03 | 2010-06-03 | Ceramic-silicone rubber compounded insulting low-voltage transformer sleeve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202058538U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104575881A (en) * | 2015-01-14 | 2015-04-29 | 河北安美电气设备有限公司 | Non-winding non-capacitive type compound insulation casing pipe |
| CN106443391A (en) * | 2016-11-10 | 2017-02-22 | 武汉大学 | Transformer bushing for simulating RTV oil pollution and method for manufacturing the same |
-
2010
- 2010-06-03 CN CN2010202130238U patent/CN202058538U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104575881A (en) * | 2015-01-14 | 2015-04-29 | 河北安美电气设备有限公司 | Non-winding non-capacitive type compound insulation casing pipe |
| CN106443391A (en) * | 2016-11-10 | 2017-02-22 | 武汉大学 | Transformer bushing for simulating RTV oil pollution and method for manufacturing the same |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20111130 |
|
| CX01 | Expiry of patent term |