CN201252042Y - 24 kV outdoor high-voltage vacuum circuit breaker - Google Patents
24 kV outdoor high-voltage vacuum circuit breaker Download PDFInfo
- Publication number
- CN201252042Y CN201252042Y CNU2008201217519U CN200820121751U CN201252042Y CN 201252042 Y CN201252042 Y CN 201252042Y CN U2008201217519 U CNU2008201217519 U CN U2008201217519U CN 200820121751 U CN200820121751 U CN 200820121751U CN 201252042 Y CN201252042 Y CN 201252042Y
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- control device
- pole
- arc control
- outdoor high
- metallic conduction
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- Expired - Lifetime
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Abstract
The utility model discloses a 24 kV outdoor high-voltage vacuum circuit breaker which comprises a fully-sealed fixedly-sealed pole rod with three phases separated, a three-phase common base box body and an operation transmission mechanism; an arc extinguishing chamber arranged in the fully-sealed fixedly-sealed pole rod adopts ceramics metallization weld to carry out primary fixed sealing, and space between the surface of the arc extinguishing chamber and an insulating cylinder body of the fixedly-sealed pole rod are under the vacuum state forever; the upper end of the arc extinguishing chamber is connected with an upper wiring terminal through a nut, and a movable contact of the lower end is connected with a lower wiring terminal through a flexible connecting part through a current transformer; the flexible connecting part is formed by stacked metal conductive strips, and a groove notch is arranged between each two stacked metal conductive strips; an insulating pull rod of the operation transmission mechanism adopts a big parachute skirt shape with a pollution grade of 4 grade, and a silicone rubber insulating cap cover is arranged on the insulating pull rod; the utility model can be suitable for the closing, the opening, the bearing, and the interrupting operation under the grade of 24 kV voltage, thereby a power transformation and transportation voltage reduction program can be optimized to cause investment for establishing a power transformation and transportation line to be saved, and line loss is lowered during operation; and the utility model has the advantages of simple structure, small volume and reliable movement.
Description
Technical field
The utility model relates to the electric switch technical field of band arc extinguishing or flash guard, especially relates to a kind of vacuum switch.
Background technology
Vacuum circuit-breaker is used in distribution system distributing that electric energy and protection circuit and power-supply device are avoided transshipping, the harm of under voltage, short circuit, single-phase earthing etc.; The outdoor high-voltage vacuum breaker of China's use does not at present still have the 24kV electric pressure, and the 24kV electric pressure is the most frequently used supply power voltage of power transmission and transformation system in the world, same transmission line, the electric scope of sending of 10kV electric pressure is 40% of 20kV electric pressure approximately; Because the power transmission and transformation electrical voltage system can drop to 24kV from 110kV, directly is depressured to low pressure by 24kV again and uses for the user; Step-down program than present domestic routine, drop to 40.5kV from 110kV, drop to 12kV again, being depressured to low pressure at last uses for the user, the situation that the step-down process is loaded down with trivial details has remarkable advantage, not only can reduce the equipment input of an electric pressure, and the line loss 65-70% that when the electric energy of the same capacity of dispensing, can descend; But can not indiscriminately imitate former 12kV grade owing to manufacture and design the 24kV outdoor high-voltage vacuum breaker, need comprise conduction and contact system and arc control device to cut-offfing part, operation and running part, the structure of insulated part is improved, so this product of domestic use still relies on import so far.
Summary of the invention
The purpose of this utility model is in order to overcome the deficiency of above-mentioned prior art, on the basis of former 12kV outdoor high-voltage vacuum breaker, structure is improved, a kind of 24kV outdoor high-voltage vacuum breaker is provided, to optimize power transmission and transformation step-down program, make the construction power transmission and transformation line can save input, reduction line loss in service.
For achieving the above object, the technical solution adopted in the utility model is such: a kind of 24kV outdoor high-voltage vacuum breaker, comprise the hermetically sealed pole that three-phase is discrete, and three-phase is base cabinet and operation transmission mechanism altogether; Arc control device in the said hermetically sealed pole adopt the ceramic metallization welding, make between the insulating cylinder body of arc control device surfaces and pole and once seal admittedly, forever be in vacuum state between the insulating cylinder body of arc control device surface and pole, solved the outdoor products condensation problem, improved the dielectric strength of arc control device, improve the insulation level of circuit breaker, guaranteed the mechanical strength and the air-tightness of arc control device simultaneously; The arc control device upper end connects upper connecting terminal by nut, and the moving contact of lower end connects with following outlet board by flexible link, connects lower wire end by following outlet board through current transformer; Said flexible link is folded mutually metallic conduction sheet, for increasing flexibility, having groove in folded mutually metallic conduction sheet lacks, this connecting mode has overcome with conventional Bolt Connection moving contact or has adopted with conductive clip clamping mode connection moving contact and cause the not enough defective in installation site, and three-phase branch, the synchronism of closing and anti-vibration spring property all can be met the requirements; Said operation transmission mechanism is by branch, the switching-in spring in the insulated tension pole connection base cabinet of arc control device below, spring operating mechanism and secondary connection case and change over switch; It is 4 grades big full skirt form that said insulated tension pole adopts gradation for surface pollution, sets up the silicon rubber insulation cap in the insulated tension pole and the connection place of branch, switching-in spring, to increase electric clearance and creepage distance, the raising safety in operation; In said secondary connection case, also be equipped with the microcontrolled smart electronics surge damper of numeral, can effectively eliminate the caused misoperation of inrush phenomenon, and the misoperation that causes of circuit instantaneous overcurrent fault, guarantee the quick disjunction of short trouble, improve the reliability of power supply; Said change over switch is the conversion that is used for current transformer ratio, when the user need carry out electrorheological than adjustment, need not thread-changing, needn't have a power failure, and only needs direct rotation transformation switching knob at once, and is convenient and simple and practical; The setting of this change over switch also can make the utility model both work as circuit breaker, can work as on-load switch again and use, and when needs change function of use, only needs the rotation transformation switch, arbitrarily switches.
Owing to adopted technique scheme, a kind of 24kV outdoor high-voltage vacuum breaker of the present utility model can be applicable to that the pass of 24kV electric pressure is closed, carry, cut-offs operation, thereby can optimize power transmission and transformation step-down program, make the construction power transmission and transformation line can save input, reduction line loss in service; And have simple in structure, volume is little, the characteristics of reliable in action.
Description of drawings
Below in conjunction with accompanying drawing the utility model is further described.
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is the left-hand cutaway view of Fig. 1.
Among the figure: 1, upper connecting terminal, 2, nut, 3, arc control device, 4, flexible link, 5, outlet board down, 6, bolt, 7, insulated tension pole, 8, current transformer, 9, insulating cap, 10, secondary connection case and change over switch, 11, tripping spring, 12, spring operating mechanism, 13, switching-in spring.
Embodiment
Shown in Fig. 1-2, a kind of 24kV outdoor high-voltage vacuum breaker of the present utility model comprises the hermetically sealed pole that three-phase is discrete, and three-phase is base cabinet and operation transmission mechanism altogether; Arc control device 3 in the said hermetically sealed pole adopt the ceramic metallization welding, make between the insulating cylinder body of arc control device surfaces and pole and once seal admittedly, forever be in vacuum state between the insulating cylinder body of arc control device surface and pole, solved the outdoor products condensation problem, improved the dielectric strength of arc control device, improve the insulation level of circuit breaker, guaranteed the mechanical strength and the air-tightness of arc control device simultaneously; Arc control device 3 upper ends connect upper connecting terminal 1 by nut 2, and the moving contact of lower end connects with following outlet board 5 by flexible link 4, connect lower wire end by bolt 6 through current transformer 8 by following outlet board 5; Said flexible link 4 is folded mutually metallic conduction sheets, for increasing flexibility, having groove in folded mutually metallic conduction sheet lacks, this connecting mode has overcome with conventional Bolt Connection moving contact or has adopted with conductive clip clamping mode connection moving contact and cause the not enough defective in installation site, and three-phase branch, the synchronism of closing and anti-vibration spring property all can be met the requirements; Said operation transmission mechanism is by branch, the switching-in spring 11,13 in the insulated tension pole 7 connection base cabinets of arc control device below, spring operating mechanism 12 and secondary connection case and change over switch 10; It is 4 grades big full skirt form that said insulated tension pole 7 adopts gradation for surface pollution, sets up silicon rubber insulation cap 9 in the insulated tension pole and the connection place of branch, switching-in spring, to increase electric clearance and creepage distance, the raising safety in operation; In said secondary connection case, also be equipped with the microcontrolled smart electronics surge damper of numeral, can effectively eliminate the caused misoperation of inrush phenomenon, and the misoperation that causes of circuit instantaneous overcurrent fault, guarantee the quick disjunction of short trouble, improve the reliability of power supply; Said change over switch is the conversion that is used for current transformer ratio, when the user need carry out electrorheological than adjustment, need not thread-changing, needn't have a power failure, and only needs direct rotation transformation switching knob at once, and is convenient and simple and practical; The setting of this change over switch also can make the utility model both work as circuit breaker, can work as on-load switch again and use, and when needs change function of use, only needs the rotation transformation switch, arbitrarily switches;
Said flexible link 4 is folded mutually metallic conduction sheets, and this metallic conduction sheet is that thickness is the scale copper of 0.03mm.
Claims (2)
1, a kind of 24kV outdoor high-voltage vacuum breaker is characterized in that: comprise the hermetically sealed pole that three-phase is discrete, three-phase is base cabinet and operation transmission mechanism altogether; Arc control device (3) in the said hermetically sealed pole adopt the ceramic metallization welding, make between the insulating cylinder body of arc control device surface and pole once envelope admittedly, forever are in vacuum state between the insulating cylinder body of the surperficial and pole of arc control device; The arc control device upper end connects upper connecting terminal (1) by nut (2), and the moving contact of lower end connects with following outlet board (5) by flexible link (4), connects lower wire end by bolt (6) through current transformer (8) by following outlet board (5); Said flexible link (4) is folded mutually metallic conduction sheet, has groove and lack in folded mutually metallic conduction sheet; Said operation transmission mechanism is by branch, the switching-in spring (11,13) in insulated tension pole (7) the connection base cabinet of arc control device below, spring operating mechanism (12) and secondary connection case and change over switch (10); It is 4 grades big full skirt form that said insulated tension pole (7) adopts gradation for surface pollution, sets up silicon rubber insulation cap (9) in the connection place of insulated tension pole and branch, switching-in spring; In said secondary connection case, also be equipped with the microcontrolled smart electronics surge damper of numeral.
2, according to the said a kind of 24kV outdoor high-voltage vacuum breaker of claim 1, it is characterized in that: said flexible link (4) is folded mutually metallic conduction sheet, and this metallic conduction sheet is that thickness is the scale copper of 0.03mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201217519U CN201252042Y (en) | 2008-07-18 | 2008-07-18 | 24 kV outdoor high-voltage vacuum circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201217519U CN201252042Y (en) | 2008-07-18 | 2008-07-18 | 24 kV outdoor high-voltage vacuum circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201252042Y true CN201252042Y (en) | 2009-06-03 |
Family
ID=40747715
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201217519U Expired - Lifetime CN201252042Y (en) | 2008-07-18 | 2008-07-18 | 24 kV outdoor high-voltage vacuum circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201252042Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101329965B (en) * | 2008-07-18 | 2010-10-13 | 日升集团有限公司 | 24 KV outdoor high-voltage vacuum breaker |
-
2008
- 2008-07-18 CN CNU2008201217519U patent/CN201252042Y/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101329965B (en) * | 2008-07-18 | 2010-10-13 | 日升集团有限公司 | 24 KV outdoor high-voltage vacuum breaker |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20090603 Effective date of abandoning: 20080718 |