CN201369287Y - Outdoor insulation high-voltage vacuum breaker - Google Patents
Outdoor insulation high-voltage vacuum breaker Download PDFInfo
- Publication number
- CN201369287Y CN201369287Y CNU2009200843609U CN200920084360U CN201369287Y CN 201369287 Y CN201369287 Y CN 201369287Y CN U2009200843609 U CNU2009200843609 U CN U2009200843609U CN 200920084360 U CN200920084360 U CN 200920084360U CN 201369287 Y CN201369287 Y CN 201369287Y
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- China
- Prior art keywords
- current transformer
- insulation
- vacuum breaker
- voltage vacuum
- outdoor
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- 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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Abstract
An outdoor insulation high-voltage vacuum breaker mainly comprises a housing, and an upper insulation support and a lower insulation support mounted in the housing, wherein the lower insulation support is solid; a support frame is mounted on the casing of the lower insulation support; a current transformer is fixed on the support frame; the outgoing copper bus of the current transformer is connected with an overhead wire or cable of a user; and the incoming copper bus of the current is connected with the outgoing connection copper bus and then connected with a down lead in a soft connection manner. The outdoor insulation high-voltage vacuum breaker has the advantages of high reliability, long service life, convenient replacement of the current transformer and high insulation performance.
Description
(1) technical field:
The utility model relates to a kind of outdoor high voltage switchgear, specifically is to be applicable to three-phase alternating current 50Hz, and rated voltage 40.5kV electric power system as branch, is closed load current, a kind of insulation outdoor high-voltage vacuum breaker of the usefulness of overload current and short circuit current.
(2) background technology:
At present, the switch that uses in the electric power system both at home and abroad is various in style, it mainly is made up of vacuum interrupter, built-in current transformer, transmission mechanism and electric spring energy storage operation machine, by the branch of operating mechanism incompatible control three phase isolated pull bar and vacuum interrupter deciliter.Electric current causes quiet end of vacuum interrupter and moved end by last outlet terminal, and summation current transformer is drawn to lower wire end by being flexible coupling.Make Current Transformer big electric current can be realized control to little electric current making the no-load voltage ratio scope rise to a higher level under high pressure conditions.And the selecting for use the useful life that has directly determined switch with mounting means of instrument transformer.Be subjected to the influence of urban development speed and electrical network increase-volume speed the useful life of current transformer, and built-in current transformer links to each other with following insulation column, more the change poles inconvenience.Built-in current transformer is fixed on down in the insulation column, and the instrument transformer external insulation adopts the mode of irritating No. 6901 circuit breaker insulation fat.The long-time outdoor operation of switch, No. 6901 circuit breaker insulation fat are subjected to the erosion of materials such as moisture, water easily, cause the insulating properties of switch to reduce.When water content acquires a certain degree, very easily cause over the ground puncture, phenomenon such as blast, this kind accident is in operation and happens occasionally, serious harm is to the fail safe of operation of power networks.
(3) summary of the invention:
The purpose of this utility model is to provide a kind of good reliability, long service life, and current transformer is changed convenient, the insulation outdoor high-voltage vacuum breaker that insulating properties is strong.
The utility model mainly comprises shell and cased insulation column up and down, described insulation column down is a solid, on the housing of following insulation column, a bracing frame is housed, be fixed with current transformer on the bracing frame, wherein current transformer outlet copper bar is connected with user's overhead wire or cable, and current transformer inlet wire copper bar is connected to and is connected to down outlet again to be flexible coupling after outlet connects copper bar.
The utility model will descend insulation column to change solid formula into by open-core type, thoroughly solve switch insulation against ground problem.Original built-in current transformer and circuit breaker form integrated, current transformer once passes in and out line row and is sealed in down in the hollow bushing of insulation column, fill full No. 6901 circuit breaker insulation fat between the two as the external insulation medium, the moisture that exists in the insulation fat is suspended state in insulation fat, form " foot bridge " etc. and puncture voltage is obviously descended, when insulation in the fat moisture only 100,000/what time, withstand voltage will significantly descend; If water content continues to increase, then increase more path in parallel, the hidden danger that puncture voltage then can exist continuation to descend of easily puncturing.The following general who has surrendered of puncture voltage finally causes the switch insulation against ground destroyed, and shorted to earth can take place switch, even blast.Adopt solid lower supporting rod, the path formation that does not have the accumulation of moisture impurity and can puncture is so thoroughly solve switch insulation against ground problem, the generation of thoroughly stopping such accident.
With current transformer by the built-in external that changes into, to make things convenient for the user to carry and to change.Volume and weight all satisfies user's requirement.Simultaneously, outdoor type current transformer and following insulation column are on same plane, and spacing is suitable, are convenient to observe, and safeguard, greatly reduce user's maintenance workload.
The outdoor type current transformer adopts outdoor all-sealed structure, and external insulation adopts the outdoor special epoxy resin of import, UV resistant, ageing-resistant, the life-span is long.First and second winding and iron core all are cast in the epoxy resin, anti-pollution and humidity.The outer postpone of instrument transformer had both reduced the complexity of breaker body, had reduced potential faults again, had solved this kind switch insulation and had met accident in the problem of current transformer.
(4) description of drawings:
Fig. 1 is existing high-pressure vacuum breaker structural representation;
Fig. 2 is the utility model structural representation.
Wherein: the 1-shell, the last insulation column of 2-, insulation column under the 3-, the 4-bracing frame, the 5-current transformer, 6-outlet copper bar, 7-inlet wire copper bar, the 8-outlet connects copper bar, and 9-is flexible coupling, outlet under the 10-.
(5) embodiment:
Referring to Fig. 1, Fig. 2, the utility model mainly comprises shell 1 and cased insulation column up and down 2,3, described insulation column down is a solid, on the housing of following insulation column, a bracing frame 4 is housed, bracing frame is that the screw with 4 M12 is fixed on the shell, on bracing frame, be fixed with current transformer 5, wherein current transformer outlet copper bar 6 is connected with user's overhead wire or cable, and current transformer inlet wire copper bar 7 is connected to outlet and connects behind the copper bar 8 to be flexible coupling again and 9 be connected to down outlet 10.
Claims (1)
1. insulation outdoor high-voltage vacuum breaker, mainly comprise shell and cased insulation column up and down, it is characterized in that: described insulation column down is a solid, on the housing of following insulation column, a bracing frame is housed, be fixed with current transformer on the bracing frame, wherein current transformer outlet copper bar is connected with user's overhead wire or cable, and current transformer inlet wire copper bar is connected to and is connected to down outlet again to be flexible coupling after outlet connects copper bar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009200843609U CN201369287Y (en) | 2009-03-20 | 2009-03-20 | Outdoor insulation high-voltage vacuum breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009200843609U CN201369287Y (en) | 2009-03-20 | 2009-03-20 | Outdoor insulation high-voltage vacuum breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201369287Y true CN201369287Y (en) | 2009-12-23 |
Family
ID=41488178
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2009200843609U Expired - Lifetime CN201369287Y (en) | 2009-03-20 | 2009-03-20 | Outdoor insulation high-voltage vacuum breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201369287Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102360985A (en) * | 2011-09-15 | 2012-02-22 | 四川奇通电气成套设备有限公司 | High-voltage vacuum circuit breaker |
| CN103035440A (en) * | 2012-12-07 | 2013-04-10 | 益和电气集团股份有限公司 | Breaker aluminum bracket sealing structure |
| CN103531399A (en) * | 2013-10-21 | 2014-01-22 | 四川奇通电气成套设备有限公司 | Restriking-less vacuum circuit breaker based on automatic tripping amplitude adjustment |
-
2009
- 2009-03-20 CN CNU2009200843609U patent/CN201369287Y/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102360985A (en) * | 2011-09-15 | 2012-02-22 | 四川奇通电气成套设备有限公司 | High-voltage vacuum circuit breaker |
| CN103035440A (en) * | 2012-12-07 | 2013-04-10 | 益和电气集团股份有限公司 | Breaker aluminum bracket sealing structure |
| CN103035440B (en) * | 2012-12-07 | 2015-12-16 | 益和电气集团股份有限公司 | Breaker aluminum bracket hermetically-sealed construction |
| CN103531399A (en) * | 2013-10-21 | 2014-01-22 | 四川奇通电气成套设备有限公司 | Restriking-less vacuum circuit breaker based on automatic tripping amplitude adjustment |
| CN103531399B (en) * | 2013-10-21 | 2015-06-17 | 四川奇通电气成套设备有限公司 | Restriking-less vacuum circuit breaker based on automatic tripping amplitude adjustment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: HUBEI WANGAN TECHNOLOGY CO., LTD Free format text: FORMER OWNER: HE XIAOHONG Effective date: 20100726 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 435000 NO.98, GUANDI VILLAGE, HUANGGHIGANG DISTRICT, HUANGSHI CITY, HUBEI PROVINCE TO: 435002 NO.98, GUANDI VILLAGE, HUANGGHIGANG DISTRICT, HUANGSHI CITY, HUBEI PROVINCE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20100726 Address after: 435002 Huangshi city of Hubei province Huangshi port Guandi Village No. 98 Patentee after: Hubei Wangan Technology Co., Ltd. Address before: 435000 Huangshi city of Hubei province Huangshi port Guandi Village No. 98 Patentee before: He Xiaohong |
|
| CX01 | Expiry of patent term |
Granted publication date: 20091223 |
|
| CX01 | Expiry of patent term |