CN101329965B - 24 KV outdoor high-voltage vacuum breaker - Google Patents
24 KV outdoor high-voltage vacuum breaker Download PDFInfo
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- CN101329965B CN101329965B CN200810120089XA CN200810120089A CN101329965B CN 101329965 B CN101329965 B CN 101329965B CN 200810120089X A CN200810120089X A CN 200810120089XA CN 200810120089 A CN200810120089 A CN 200810120089A CN 101329965 B CN101329965 B CN 101329965B
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- voltage vacuum
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Abstract
The invention relates to a 24kV outdoor high-voltage vacuum circuit breaker which comprises a three-phase discrete hermetically-sealed seal terminal post, a three-phase shared pedestal box and an operation transmission mechanism. The arc-extinguishing chamber of the hermetically-sealed seal terminal post adopts ceramic metallization welding, and is sealed at a time, with a permanent vacuum state between the surface of the arc-extinguishing chamber and the insulated cylinder of the seal terminal post; the upper end of the arc-extinguishing chamber is connected with an upper connection terminal through a nut, a moving contact terminal of the lower end is connected with a lower outgoing terminal through a soft connector and a current transformer. The soft connector is internally overlapped metal conductive strips, and a notch is arranged between the internally overlapped metal conductive strips; the insulating tension pole of the operation transmission mechanism adopts large shed type with a pollution grade of 4, and a silicone rubber insulated cap is arranged on the insulating tension pole; the outdoor high-voltage vacuum circuit breaker can be applicable to the close, bearing and break of a voltage class of 24kV, so as to optimize the power transmission and transformation reduction voltage process, cause the save in the cost of constructing a power transmission and transformation line, and the reduction of line loss in operation; furthermore, the outdoor high-voltage vacuum circuit breaker is characterized by simple structure, little size and reliable action.
Description
Technical field
The present invention relates to electric switch technical field, especially relate to a kind of vacuum switch with arc extinguishing or flash guard.
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 has remarkable advantage for the situation that the user uses, 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 objective of the invention 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, technical scheme of the present invention 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 short-circuiting device, 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 is connected 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 connected 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 junction 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, only need direct rotation transformation switching knob at once, convenient and simple and practical; The setting of this change over switch also can make the present invention 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 invention 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
The present invention is further illustrated below in conjunction with accompanying drawing.
Fig. 1 is a structural representation of the present invention.
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 invention 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 is connected 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 connected 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 junction 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, only need direct rotation transformation switching knob at once, convenient and simple and practical; The setting of this change over switch also can make the present invention 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 24kV outdoor high-voltage vacuum opens circuit, and it 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 described hermetically sealed pole adopt the ceramic metallization welding, make between the insulating cylinder body of arc control device surface and pole once envelope admittedly, are in vacuum state between the insulating cylinder body of the surperficial and pole of arc control device; Arc control device (3) upper end connects upper connecting terminal (1) by nut (2), and the moving contact of lower end is connected 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); Described flexible link (4) is folded mutually metallic conduction sheet, has groove and lack in folded mutually metallic conduction sheet; Described 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 described insulated tension pole (7) adopts gradation for surface pollution, sets up silicon rubber insulation cap (9) in the junction of insulated tension pole and branch, switching-in spring; In described secondary connection case, also be equipped with the microcontrolled smart electronics surge damper of numeral.
2. open circuit according to the described a kind of 24kV outdoor high-voltage vacuum of claim 1, it is characterized in that: described 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 |
|---|---|---|---|
| CN200810120089XA CN101329965B (en) | 2008-07-18 | 2008-07-18 | 24 KV outdoor high-voltage vacuum breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810120089XA CN101329965B (en) | 2008-07-18 | 2008-07-18 | 24 KV outdoor high-voltage vacuum breaker |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101329965A CN101329965A (en) | 2008-12-24 |
| CN101329965B true CN101329965B (en) | 2010-10-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200810120089XA Expired - Fee Related CN101329965B (en) | 2008-07-18 | 2008-07-18 | 24 KV outdoor high-voltage vacuum breaker |
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| Country | Link |
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| CN (1) | CN101329965B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101877275A (en) * | 2010-07-16 | 2010-11-03 | 国网电力科学研究院 | Method for improving pollution flicker-resisting capability of DC voltage transformer |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101488384B (en) * | 2009-02-27 | 2011-06-15 | 南京因泰莱配电自动化设备有限公司 | Insulator for 24V vacuum circuit breaker |
| CN102789920B (en) * | 2012-06-20 | 2015-03-11 | 国家电网公司 | Breaker interelectrode connecting device and breaker using same |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2631027Y (en) * | 2003-06-14 | 2004-08-04 | 宁波日升电器制造有限公司 | Outdoor high-voltage vacuum circuit breaker |
| CN2727939Y (en) * | 2004-08-31 | 2005-09-21 | 南京因泰莱配电自动化设备有限公司 | Silicon rubber sealed pole vacuum circuit breaker with spring mechanism |
| CN2884497Y (en) * | 2006-04-14 | 2007-03-28 | 上海维埃姆电力科技有限公司 | Polar column for high-voltage vacuum circuit-breaker |
| CN2919500Y (en) * | 2006-05-22 | 2007-07-04 | 北海银河高科技产业股份有限公司 | Solid insulated totally sealed type pole of vacuum circuit breaker |
| CN201252042Y (en) * | 2008-07-18 | 2009-06-03 | 日升集团有限公司 | 24 kV outdoor high-voltage vacuum circuit breaker |
-
2008
- 2008-07-18 CN CN200810120089XA patent/CN101329965B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2631027Y (en) * | 2003-06-14 | 2004-08-04 | 宁波日升电器制造有限公司 | Outdoor high-voltage vacuum circuit breaker |
| CN2727939Y (en) * | 2004-08-31 | 2005-09-21 | 南京因泰莱配电自动化设备有限公司 | Silicon rubber sealed pole vacuum circuit breaker with spring mechanism |
| CN2884497Y (en) * | 2006-04-14 | 2007-03-28 | 上海维埃姆电力科技有限公司 | Polar column for high-voltage vacuum circuit-breaker |
| CN2919500Y (en) * | 2006-05-22 | 2007-07-04 | 北海银河高科技产业股份有限公司 | Solid insulated totally sealed type pole of vacuum circuit breaker |
| CN201252042Y (en) * | 2008-07-18 | 2009-06-03 | 日升集团有限公司 | 24 kV outdoor high-voltage vacuum circuit breaker |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101877275A (en) * | 2010-07-16 | 2010-11-03 | 国网电力科学研究院 | Method for improving pollution flicker-resisting capability of DC voltage transformer |
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| Publication number | Publication date |
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| CN101329965A (en) | 2008-12-24 |
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Granted publication date: 20101013 Termination date: 20190718 |