CN1963972A - High voltage vacuum circuit breaker with high rated current value - Google Patents
High voltage vacuum circuit breaker with high rated current value Download PDFInfo
- Publication number
- CN1963972A CN1963972A CNA2006101049129A CN200610104912A CN1963972A CN 1963972 A CN1963972 A CN 1963972A CN A2006101049129 A CNA2006101049129 A CN A2006101049129A CN 200610104912 A CN200610104912 A CN 200610104912A CN 1963972 A CN1963972 A CN 1963972A
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- CN
- China
- Prior art keywords
- radiator
- conductive rod
- porcelain bushing
- breaker
- rated current
- 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.)
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/52—Cooling of switch parts
- H01H2009/523—Cooling of switch parts by using heat pipes
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- Gas-Insulated Switchgears (AREA)
Abstract
The invention relates to a high-voltage vacuum breaker for high rated current. Wherein, the vacuum arc-extinguish chamber pole includes the ceramic sleeve for insulation to accommodate the chamber, a static conductive pole on one chamber end with an upper conductive ring and flange, a movable pose on another end with an lower conductive ring and conductive support with lower flange, two wire terminals on sleeve to connect former conductive rings; a first and second radiator near two flanges respectively; some insulation oil for heat dissipation between the sleeve and chamber and the support; and one or some holes on static pole to insert heat pipe.
Description
Technical field
The present invention relates to a kind of primary cut-out, particularly a kind of high-pressure vacuum breaker of high rated current value.
Background technology
Current in 126kV and above high pressure and extra high voltage circuit breaker SF
6Circuit breaker is a main product.SF
6Gas is 6 kinds of the strongest a kind of gases of greenhouse gases medium temperature chamber effect that Kyoto Protocol is pointed out.Vacuum circuit-breaker has environmental protection, and the properties of product advantages of higher is a main product in middle pressure grade at present.Replace SF with high-pressure vacuum breaker
6Circuit breaker is a kind of good selection.Vacuum circuit-breaker short circuit current cut-off aspect ability outstanding, but improve being not easy aspect the rated current parameter.
Summary of the invention
Purpose of the present invention is intended to propose a kind of high-pressure vacuum breaker of high rated current value, and this high-pressure vacuum breaker can improve high-pressure vacuum breaker rated current grade under the constant prerequisite of existing vacuum interrupter.
The technical solution that realizes foregoing invention is, a kind of high-pressure vacuum breaker of high rated current value, comprise a vacuum circuit-breaker, the structure of this vacuum circuit-breaker vacuum interrupter pole includes the porcelain bushing as insulation column, vacuum interrupter is housed in porcelain bushing, the two ends of vacuum interrupter have static conductive rod and moving conductive rod respectively, and last conducting ring and upper flange are arranged around the static conductive rod, and are provided with the upper connecting terminal that is connected with last conducting ring in the porcelain bushing outside; Around the moving conductive rod following conducting ring and conductive supporting are arranged, there is lower flange the below of conductive supporting, and passes through the lower connecting terminal of conducting ring connection porcelain bushing outside down; Above upper flange, also has first radiator, around lower flange, be provided with second radiator, insulating oil as heat radiation is arranged in the space between porcelain bushing and vacuum interrupter and porcelain bushing and conductive supporting, it is characterized in that, described static conductive rod axially have one or more holes, insert heat pipe in the hole.
The high-pressure vacuum breaker of high rated current value of the present invention, under the prerequisite that does not change traditional vacuum interrupter basic structure, by axially punching in static conductive rod, and in the hole, insert heat pipe and improve the heat conductivility of static conductive rod, and adopt rational radiator structure to improve the rated current of heat dispersion two aspect measures raising high-pressure vacuum breaker of radiator.Can significantly improve the rated current performance of high-pressure vacuum breaker, according to the data-searching that the applicant did, the hot pipe technique scheme that the application adopted at home and abroad 72.5kV and the high-pressure vacuum breaker of above grade in all do not adopt.
Description of drawings
Fig. 1 is vacuum interrupter pole figure; Wherein figure (a) is that first radiator 11 is the structure chart of sheet metal, the structure chart of figure (b) plate fin type radiator that to be first radiator 11 radially distribute for fin, each symbol is among the figure: 1, first binding post, 2, second binding post, 3, porcelain bushing, 4, upper flange, 5, lower flange, 6, go up conducting ring, 7, following conducting ring, 8, vacuum interrupter, 9, insulating oil (as silicone oil), 10, conductive supporting, 11, first radiator, 12, second radiator, 13, static conductive rod, 14, moving conductive rod, 16, heat pipe.
Fig. 2 is static conductive rod 13 structure charts; Each symbol is among the figure: 15, hole, 16, heat pipe.
Fig. 3 is the structure chart of heat pipe, and each symbol is among the figure: 1601, liquid refrigerant, 1602, tube wall.
Plate fin type radiator 11 figure that Fig. 4 radially distributes for fin; Symbol is among the figure: 11, first radiator, 1,101 first radiator fins.
Fig. 5 is radiator 12 figure; Symbol is among the figure: 12, first radiator, 1201, the second radiator fin.
The present invention is described in further detail below in conjunction with embodiment that accompanying drawing and inventor provide.
Embodiment
The vacuum interrupter pole structure of high-pressure vacuum breaker of the present invention as shown in Figure 1.Comprise traditional vacuum circuit-breaker, the structure of this vacuum circuit-breaker vacuum interrupter pole includes the porcelain bushing 3 as insulation column, vacuum interrupter 8 is housed in porcelain bushing 3, the two ends of vacuum interrupter 8 have static conductive rod 13 and moving conductive rod 14 respectively, around the static conductive rod 13 last conducting ring 6 and upper flange 4 are arranged, and be provided with the upper connecting terminal 1 that is connected with last conducting ring 6 in porcelain bushing 3 outsides; Around the moving conductive rod 14 following conducting ring 7 and conductive supporting 10 are arranged, there is lower flange 5 below of conductive supporting 10, and passes through the lower connecting terminal 2 of conducting ring 7 connection porcelain bushings outsides down; Above upper flange 4, also have first radiator 11, around lower flange 5, be provided with second radiator 12, the insulating oil 9 as heat radiation is arranged in the space between porcelain bushing 3 and vacuum interrupter 8 and porcelain bushing 3 and conductive supporting 10; Static conductive rod 13 axially have one or more holes 15, be inserted with heat pipe 16 in the hole 15.
Electric current can arrive static conductive rod 13 through last conducting ring 6 again via upper connecting terminal 1 to upper flange 4, passes through vacuum interrupter again, and to moving conductive rod 14, process conducting ring 7 down arrives conductive supporting 10 again, is flowed out by lower flange 5 and lower connecting terminal 2 at last.Current direction also can be opposite with above-mentioned direction.
Porcelain bushing 3 plays the effect of mechanical support, and in the space of insulating oil 9 (as silicone oil or β oil) between porcelain bushing 3 and vacuum interrupter 8 and porcelain bushing 3 and conductive supporting 10, it mainly plays insulating effect, also plays the effect of heat loss through convection simultaneously.
First radiator 11 can be a sheet metal, also can be the plate fin type radiator that fin radially distributes.The sheet metal radiator is directly installed on the cold junction (Fig. 1 (a)) of heat pipe 16; The plate fin type radiator that fin radially distributes is installed in above the upper flange 4 (Fig. 1 (b)), and second radiator 12 is plate fin type radiators that fin radially distributes, and can be installed in top, the following or side of lower flange 7.
The heat that the heat of vacuum arc-extinguishing chamber contact contact position and arc control device moving conductive rod partly pass over mainly is passed to first radiator 11 by the phase transition process of the liquid refrigerant 1601 in the heat pipe 16, sheds through first radiator 11 again.Detailed process is: liquid refrigerant 1601 absorbs heat and becomes steam, steam rises to first radiator, 11 ends, to be condensed into liquid behind heat transferred first radiator 11, liquid is back to stationary contact along tube wall 1602 under action of gravity, so circulation just can be taken away the heat of vacuum arc-extinguishing chamber contact contact position and the heat that the arc control device moving conductive rod partly passes over again and again.All the other heats of vacuum interrupter moving conductive rod part are shed by moving conductive rod 14, following conducting ring 7, conductive supporting 10, lower flange 5 and second radiator 12.
Because the equivalent speed conductance of heat pipe 16 much larger than the copper metal solid, therefore, behind the insertion heat pipe 16, can make the capacity of heat transmission of static conductive rod 13 improve greatly, and can also alleviate the weight of static conductive rod 13 in the static conductive rod 13, saves material.
The inventor has carried out preliminary temperature field analysis to above embodiment, the result shows, when the vacuum arc quenching chamber structure shown in Fig. 1 (a), when being 2000A by rated current, when the maximum temperature that static conductive rod has a contacts for vacuum-break switches of heat pipe is the copper metal solid than static conductive rod low about 80 ℃.
Claims (3)
1. the high-pressure vacuum breaker of a high rated current value comprises a vacuum circuit-breaker, and the vacuum interrupter pole structure of this vacuum circuit-breaker comprises:
Porcelain bushing (3) as insulation column, vacuum interrupter (8) is housed in porcelain bushing (3), the two ends of vacuum interrupter (8) have static conductive rod (13) and moving conductive rod (14) respectively, static conductive rod (13) has last conducting ring (6) and upper flange (4) on every side, and is provided with the upper connecting terminal (1) that is connected with last conducting ring (6) in porcelain bushing (3) outside; Moving conductive rod (14) has following conducting ring (7) and conductive supporting (10) on every side, and there is lower flange (5) below of conductive supporting (10), and passes through the lower connecting terminal (2) of conducting ring (7) connection porcelain bushing outside down; Top in upper flange (4), also has first radiator (11), be provided with second radiator (12) on every side at lower flange (5), insulating oil (9) as heat radiation is arranged in the space between porcelain bushing (3) and vacuum interrupter (8) and porcelain bushing (3) and conductive supporting (10), it is characterized in that, described static conductive rod (13) axially have one or more holes (15), be inserted with heat pipe (16) in hole (15), heat pipe is equipped with liquid refrigerant in (16).
2. the high-pressure vacuum breaker of high rated current value as claimed in claim 1, it is characterized in that, described first radiator (11) is the plate fin type radiator that sheet metal or fin radially distribute, the plate fin type radiator that second radiator (12) radially distributes for fin.
3. the high-pressure vacuum breaker of high rated current value as claimed in claim 1 is characterized in that, described insulating oil (9) is silicone oil or β oil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2006101049129A CN1963972A (en) | 2006-11-14 | 2006-11-14 | High voltage vacuum circuit breaker with high rated current value |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2006101049129A CN1963972A (en) | 2006-11-14 | 2006-11-14 | High voltage vacuum circuit breaker with high rated current value |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1963972A true CN1963972A (en) | 2007-05-16 |
Family
ID=38082983
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2006101049129A Pending CN1963972A (en) | 2006-11-14 | 2006-11-14 | High voltage vacuum circuit breaker with high rated current value |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1963972A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101303944B (en) * | 2008-06-03 | 2010-11-10 | 西安交通大学 | Single tube hot pipe static conductive rod for high tension vacuum arc-extinguishing chamber |
| CN102074409A (en) * | 2011-01-28 | 2011-05-25 | 湖北网安科技有限公司 | Sealing pole with irradiating device |
| CN105374597A (en) * | 2015-11-23 | 2016-03-02 | 西安交通大学 | High-voltage high-current vacuum circuit breaker radiating structure |
| CN112216552A (en) * | 2020-08-19 | 2021-01-12 | 天津平高智能电气有限公司 | Vacuum circuit breaker |
-
2006
- 2006-11-14 CN CNA2006101049129A patent/CN1963972A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101303944B (en) * | 2008-06-03 | 2010-11-10 | 西安交通大学 | Single tube hot pipe static conductive rod for high tension vacuum arc-extinguishing chamber |
| CN102074409A (en) * | 2011-01-28 | 2011-05-25 | 湖北网安科技有限公司 | Sealing pole with irradiating device |
| CN105374597A (en) * | 2015-11-23 | 2016-03-02 | 西安交通大学 | High-voltage high-current vacuum circuit breaker radiating structure |
| CN112216552A (en) * | 2020-08-19 | 2021-01-12 | 天津平高智能电气有限公司 | Vacuum circuit breaker |
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| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |