CN2786767Y - Total seal type pole post of vacuum breaker - Google Patents
Total seal type pole post of vacuum breaker Download PDFInfo
- Publication number
- CN2786767Y CN2786767Y CN 200520100769 CN200520100769U CN2786767Y CN 2786767 Y CN2786767 Y CN 2786767Y CN 200520100769 CN200520100769 CN 200520100769 CN 200520100769 U CN200520100769 U CN 200520100769U CN 2786767 Y CN2786767 Y CN 2786767Y
- Authority
- CN
- China
- Prior art keywords
- end cover
- insulating sleeve
- bottom end
- insulating
- extinguishing chamber
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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- High-Tension Arc-Extinguishing Switches Without Spraying Means (AREA)
Abstract
The utility model relates to a pole post of a high-voltage or superhigh-voltage vacuum circuit beaker. The utility model comprises an insulating pull rod, the static end of a vacuum arc-extinguishing chamber in an upper insulating casing tube is supported and contacted with a conducting ring and an upper end cover, and the upper end of the insulating pull rod is fixed to a lower end cover having no venthole at the moving end of the vacuum arc-extinguishing chamber. A silicon rubber insulating layer is filled between the insulating casing tube and the vacuum arc-extinguishing chamber, and the lower end cover is in the shape of an upwards convex bell. Since filled silicone rubber materials having high temperature resistance and high insulating property can be used for substituting SF6 gas, global environment can be protected, the influence of external environment on the vacuum arc-extinguishing chamber is reduced to the lowest extent, weatherability is enhanced, the problem of surface distance creeping is solved, the level of withstanding voltage is enhanced and the service life of the utility model is prolonged.
Description
Technical field
The utility model relates to power equipment, particularly is applicable to the pole of high pressure or EHV Vacuum Breaker.
Background technology
The structure of existing EHV Vacuum Breaker pole, the upper and lower insulating sleeve of being made by pottery or epoxy resin connects by bottom end cover, and the vacuum extinction treasured is arranged in the insulating sleeve, and bottom end cover has air vent hole connects upper and lower insulating sleeve, uses SF
6Gas charges into from following insulating sleeve bottom, makes between vacuum interrupter and the insulating sleeve to be full of SF
6Gas is to improve dielectric strength.But because SF
6Gas has extremely strong greenhouse effect, and " Kyodo Protocol book " advised forbidding SF comprehensively
6So SF
6The type vacuum circuit-breaker is about to be eliminated has become trend.Have the technical scheme that insulating sleeve one on vacuum interrupter and the epoxy resin is poured into pole, be intended to cancel SF
6But because heating effect of current causes vacuum interrupter and consolidates the different difference of thermal coefficient of expansion between the seal ring epoxy resins, last insulating sleeve is scrapped by spalling easily.
Summary of the invention
The purpose of this utility model provides and a kind ofly can substitute SF
6And the pole that is applicable to EHV Vacuum Breaker of long life.
The utility model comprises insulated tension pole, the quiet end of the vacuum interrupter in the last insulating sleeve and last conducting ring and upper end cover contact, the moved end of vacuum interrupter is fixed in the insulated tension pole upper end, the contact spring assembly of exerting pressure is set in the bottom end cover, its main points are that bottom end cover does not have air vent hole, are filled with silicone rubber insulation layer between last insulating sleeve and the vacuum interrupter.
Above-mentioned bottom end cover be shaped as bell body protruding upward, the contact spring assembly of exerting pressure is loaded in this bell body.The bell body apical position of bottom end cover is provided with horizontal baffle in last insulated tube.
The bottom end cover lower end has been installed with down insulating sleeve, and insulated tension pole runs through wherein.
The utility model can substitute SF fully owing to filled silastic material high temperature resistant, high-insulativity between vacuum interrupter and insulating sleeve
6Gas helps the environment of preserving our planet, and reaches the requirement of " Kyodo Protocol book ".Especially the elastic reaction of silicon rubber, can offset the difference of the thermal coefficient of expansion between vacuum interrupter and the insulating sleeve fully, can not cause the cracking of insulating sleeve, mechanical shock in anti-transportation and the installation process drops to external environment minimumly simultaneously to the influence of vacuum interrupter, strengthened weatherability, also solved surperficial creep distance problem, improved the withstand voltage level, size also can correspondingly be dwindled, and prolong useful life.
Description of drawings
Fig. 1 implements the side structure schematic diagram for the utility model
Fig. 2 is another enforcement side structure schematic diagram of the utility model
Embodiment
With reference to enforcement side shown in Figure 1, last insulating sleeve 4 is made by epoxy resin, installation vacuum interrupter 2 in it, and the upper end cover 9 of making one with upper connecting terminal 1 contacts with arc control device 2 upper ends (quiet end) by last conducting ring.Last insulating sleeve 4 and following insulating sleeve are by bottom end cover 6 mechanical connections, insulated tension pole 7 runs through to descend insulating sleeve to enter insulating sleeve 4 and is connected with arc control device 2 lower ends (moved end), make bottom end cover 6 middle parts of one with lower connecting terminal 8 and make bell-shaped, the contact spring assembly 5 of exerting pressure is loaded in it.Owing to need not to charge into SF
6Gas, bottom end cover 6 original air vent hole cancellations, the space cast silastic-layer 3 in last insulating sleeve 4 constitutes the full-enclosed type pole.
Implement side with reference to Fig. 2, because the insulation that the scope that need to solve Insulation Problems only between quiet, the moved end of arc control device 2, promptly only needs to solve around the arc control device 2 gets final product.Water fluence in order to reduce silicon rubber, weight reduction is provided with a horizontal baffle 10 in the Zhong Ding position of bell body lower end 6, will go up and be separated into two cavitys up and down in the insulating sleeve 4, only to cast silastic-layer 3 in the epicoele at arc control device 2 places.
Claims (4)
1, a kind of full-enclosed type pole that is used for vacuum circuit-breaker, comprise insulated tension pole (7), quiet end of vacuum interrupter (2) in the last insulating sleeve (4) and last conducting ring and upper end cover (9) contact, the moved end of vacuum interrupter (2) is fixed in insulated tension pole (7) upper end, it is characterized in that the no air vent hole of bottom end cover (6), be filled with silicone rubber insulation layer (3) between last insulating sleeve (4) and the vacuum interrupter (2).
2, full-enclosed type pole according to claim 1 is characterized in that bottom end cover (6) is shaped as bell body protruding upward, and the contact spring assembly (5) of exerting pressure is loaded in this bell body.
3, full-enclosed type pole according to claim 2 is characterized in that the bell body apical position of bottom end cover (6) is provided with horizontal baffle (10) in last insulated tube (4), filled silicon rubber insulating barrier (3) in the chamber of dividing plate top.
4, according to claim 2 or 3 described full-enclosed type poles, it is characterized in that bottom end cover (6) lower end has been installed with down insulating sleeve, insulated tension pole (7) runs through wherein.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520100769 CN2786767Y (en) | 2005-03-04 | 2005-03-04 | Total seal type pole post of vacuum breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520100769 CN2786767Y (en) | 2005-03-04 | 2005-03-04 | Total seal type pole post of vacuum breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2786767Y true CN2786767Y (en) | 2006-06-07 |
Family
ID=36775332
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520100769 Expired - Lifetime CN2786767Y (en) | 2005-03-04 | 2005-03-04 | Total seal type pole post of vacuum breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2786767Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101329964B (en) * | 2008-04-25 | 2012-02-01 | 西安交通大学 | Non-SF6 gas insulated outdoor high voltage vacuum circuit breaker |
| CN104576172A (en) * | 2015-02-09 | 2015-04-29 | 河北润志电气设备有限公司 | Embedded pole rod |
| CN105448580A (en) * | 2015-11-27 | 2016-03-30 | 平高集团有限公司 | High voltage vacuum circuit breaker and unipole thereof |
-
2005
- 2005-03-04 CN CN 200520100769 patent/CN2786767Y/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101329964B (en) * | 2008-04-25 | 2012-02-01 | 西安交通大学 | Non-SF6 gas insulated outdoor high voltage vacuum circuit breaker |
| CN104576172A (en) * | 2015-02-09 | 2015-04-29 | 河北润志电气设备有限公司 | Embedded pole rod |
| CN105448580A (en) * | 2015-11-27 | 2016-03-30 | 平高集团有限公司 | High voltage vacuum circuit breaker and unipole thereof |
| CN105448580B (en) * | 2015-11-27 | 2018-11-06 | 平高集团有限公司 | A kind of high-pressure vacuum breaker and its monopole |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20150304 Granted publication date: 20060607 |