CN102360646A - Hollow composite insulator for 500-kV gas current transformer - Google Patents
Hollow composite insulator for 500-kV gas current transformer Download PDFInfo
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- CN102360646A CN102360646A CN2011103259921A CN201110325992A CN102360646A CN 102360646 A CN102360646 A CN 102360646A CN 2011103259921 A CN2011103259921 A CN 2011103259921A CN 201110325992 A CN201110325992 A CN 201110325992A CN 102360646 A CN102360646 A CN 102360646A
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- silicon rubber
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Abstract
The invention relates to a hollow composite insulator for a 500-kV gas current transformer, in particular for a 500-kV inverted sulfur hexafluoride (SF6) gas insulating current transformer, and belongs to the technical field of transformers. The invention adopts the technical scheme that: the hollow composite insulator comprises aluminum alloy flanges (1), a silicon rubber umbrella skirt (2) and an epoxy glass silk pipe (3), wherein the epoxy glass silk pipe is wound into a cylinder by using a wet method; methyl vinyl silicone rubber is poured on the whole exterior of the cylinder and then vulcanized at a high temperature into the silicon rubber umbrella skirt; the aluminum alloy flanges are poured at the upper and lower ends of the cylinder; the silicon rubber umbrella skirt is in a shape of large and small umbrellas; a creepage distance is not less than 20,460 mm; and a flash-over distance is not less than 5,115 mm. The pollution resistance capacity of the hollow composite insulator is improved, the using requirement of the hollow composite insulator in heavily-polluted areas is met, and the hollow composite insulator is convenient to assemble and disassemble.
Description
Technical field
The present invention relates to a kind of 500kV gas current instrument transformer and use hollow combined insulator, particularly the inverted SF of 500kV
6Gas insulated high voltage current transformer is used hollow combined insulator, belongs to the instrument transformer technical field.
Background technology
At present, the inverted SF of the 500kV of background technology
6Gas insulated high voltage current transformer uses the maximum creepage distance of hollow combined insulator to be 17050mm, and it is 4263mm that maximum arc dodges distance.Because the hollow combined insulator average diameter is greater than φ 500mm; Diameter is bigger, and the dirty ability of anti-soil just decreases, therefore; On the basis of customer requirements creepage distance, multiply by 1.2 coefficient at 17050mm; Creepage distance has just become 17050 * 1.2=20460mm, and arc dodges distance and becomes 20460/4=5115mm, and the hollow combined insulator of background technology can not satisfy above-mentioned needs.In addition, seal with sealing ring and fluid sealant between the hollow combined insulator of background technology and housing and the base, because of fluid sealant is a strong sealing glue, adhesive power is very strong, and is very inconvenient when dismantling if desired.
Summary of the invention
The purpose of this invention is to provide a kind of 500kV gas current instrument transformer and use hollow combined insulator, satisfy filthy especially severe area certainly and use, also have the characteristics of easy accessibility, solve the problems referred to above that background technology exists.
Technical scheme of the present invention is: a kind of 500kV gas current instrument transformer is used hollow combined insulator; Comprise aluminium alloy flange, silicon rubber full skirt and expoxy glass fiber tube; Twine the expoxy glass fiber tube as cylindrical shell with wet method; The integrated poured methyl ethylene high temperature sulfuration in cylindrical shell outside is as the silicon rubber full skirt, and the upper/lower terminal of cylindrical shell is poured into a mould aluminium alloy flange.
Aluminium alloy flange is provided with several technology screws, with flange mounting hole on same circumference, during detaching products, through the technology screw hollow combined insulator and housing or base are backed down with bolt.
The silicon rubber full skirt is big or small umbrella shape, and creepage distance is not less than 20460mm, and arc dodges apart from the height that deducts aluminium alloy flange for height overall, is not less than 5115mm.
Good effect of the present invention: the present invention has improved the dirty ability of anti-soil of hollow combined insulator, has satisfied the instructions for use in filthy especially severe area, makes the dismounting of hollow combined insulator more convenient.
Description of drawings
Fig. 1 is the embodiments of the invention sketch mapes;
Fig. 2 is provided with technology screw sketch map on the flange of the present invention;
Among the figure: aluminium alloy flange 1, silicon rubber full skirt 2, expoxy glass fiber tube 3, flange mounting hole 4, technology screw 5.
Embodiment
Below in conjunction with accompanying drawing, the present invention is further specified through embodiment.
A kind of 500kV gas current instrument transformer is used hollow combined insulator; Comprise aluminium alloy flange 1, silicon rubber full skirt 2 and expoxy glass fiber tube 3; The expoxy glass fiber tube is the cylindrical shell that twines with wet method, and the silicon rubber full skirt is integrated poured outside cylindrical shell, the upper/lower terminal cast aluminium alloy flange of cylindrical shell; Aluminium alloy flange is provided with several technology screw 5 and flange mounting holes, and technology screw and flange mounting hole 4 during detaching products, back down hollow combined insulator and housing or base through the technology screw with bolt on same circumference; The silicon rubber full skirt is big or small umbrella shape, and creepage distance is not less than 20460mm, and arc dodges apart from the height that deducts aluminium alloy flange for height overall, is not less than 5115mm.
Claims (1)
1. a 500kV gas current instrument transformer is used hollow combined insulator; It is characterized in that comprising aluminium alloy flange (1), silicon rubber full skirt (2) and expoxy glass fiber tube (3); Twine the expoxy glass fiber tube as cylindrical shell with wet method; The integrated poured methyl ethylene high temperature sulfuration in cylindrical shell outside is as the silicon rubber full skirt, and the upper/lower terminal of cylindrical shell is poured into a mould aluminium alloy flange; The silicon rubber full skirt is big or small umbrella shape, and creepage distance is not less than 20460mm, and arc dodges distance and is not less than 5115mm; Aluminium alloy flange is provided with several technology screws (5), with flange mounting hole (4) on same circumference, during detaching products, through the technology screw hollow combined insulator and housing or base are backed down with bolt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103259921A CN102360646A (en) | 2011-10-25 | 2011-10-25 | Hollow composite insulator for 500-kV gas current transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103259921A CN102360646A (en) | 2011-10-25 | 2011-10-25 | Hollow composite insulator for 500-kV gas current transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102360646A true CN102360646A (en) | 2012-02-22 |
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ID=45585951
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011103259921A Pending CN102360646A (en) | 2011-10-25 | 2011-10-25 | Hollow composite insulator for 500-kV gas current transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102360646A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1595548A (en) * | 2003-09-11 | 2005-03-16 | 马斌 | A composite insulator and method for producing same |
| CN101017717A (en) * | 2007-02-09 | 2007-08-15 | 山东彼岸电力科技有限公司 | Ultra-high voltage compound brace insulator |
| CN101609737A (en) * | 2009-07-20 | 2009-12-23 | 唐苑雯 | A kind of tensioning-type compound all-purpose insulator |
| CN201655439U (en) * | 2010-04-29 | 2010-11-24 | 抚顺高科电瓷电气制造有限公司 | Electric porcelain insulator capable of being conveniently dissembled |
| CN101901649A (en) * | 2010-07-14 | 2010-12-01 | 蔡彭博 | High voltage power transmission transparent insulator |
-
2011
- 2011-10-25 CN CN2011103259921A patent/CN102360646A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1595548A (en) * | 2003-09-11 | 2005-03-16 | 马斌 | A composite insulator and method for producing same |
| CN101017717A (en) * | 2007-02-09 | 2007-08-15 | 山东彼岸电力科技有限公司 | Ultra-high voltage compound brace insulator |
| CN101609737A (en) * | 2009-07-20 | 2009-12-23 | 唐苑雯 | A kind of tensioning-type compound all-purpose insulator |
| CN201655439U (en) * | 2010-04-29 | 2010-11-24 | 抚顺高科电瓷电气制造有限公司 | Electric porcelain insulator capable of being conveniently dissembled |
| CN101901649A (en) * | 2010-07-14 | 2010-12-01 | 蔡彭博 | High voltage power transmission transparent insulator |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20120222 |