CN1832065B - Multipurpose combined protection transformer - Google Patents
Multipurpose combined protection transformer Download PDFInfo
- Publication number
- CN1832065B CN1832065B CN2005100313295A CN200510031329A CN1832065B CN 1832065 B CN1832065 B CN 1832065B CN 2005100313295 A CN2005100313295 A CN 2005100313295A CN 200510031329 A CN200510031329 A CN 200510031329A CN 1832065 B CN1832065 B CN 1832065B
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- CN
- China
- Prior art keywords
- transformer
- bushing
- fuse
- lightning arrester
- circuit breaker
- 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 - Fee Related
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- Regulation Of General Use Transformers (AREA)
- Fuses (AREA)
- Housings And Mounting Of Transformers (AREA)
Abstract
A multi-purpose protection combined transformer includes a transformer body, an oil tank in it, a high voltage bushing and a low pressure bushing, an arrester and a fuse, in which, the arrester and the fuse are in the transformer, the arrester is on the tank and in front of the high voltage bushing, the both ends of the fuse are fixed on the tank of the transformer, which also includes a breaker connected at the secondary side of the transformer.
Description
Technical field
The invention belongs to the transformer technology field, be specifically related to a kind of multipurpose combined protection transformer, be particularly suited for the multipurpose combined protection transformer of high height above sea level, high pollution area usefulness.
Background technology
For transformer can not be damaged under the situation that is subjected to influences such as lightning impulse and external short circuit impact; and can also operate as normal; transformer has protective devices such as lightning arrester, fuse switch, circuit breaker usually when installing; these protective devices generally are installed in the transformer outside; its installation process complexity, floor space is big, and fuse switch is subjected to the influence of weather conditions such as wind, rain, snow, hail and vibrations easily; produce misoperation, cause the power failure of non-failure factor.In the high height above sea level of rarefaction of air, high filthy area, because weather conditions are abominable, transformer is difficult in maintenance, and rarefaction of air, and air insulation intensity is low, is easy to generate phenomenons such as corona around the sleeve pipe.
Summary of the invention
Technical problem to be solved by this invention is the above-mentioned defective that exists at prior art; a kind of multipurpose combined protection transformer is provided; this transformer in the abominable place of various weather conditions or the highlands still can safe operation, and stable performance, easy to maintenance.
The technical scheme that solution the technology of the present invention problem is adopted is that this multipurpose combined protection transformer includes transformer body, the intrinsic oil tank of transformer of transformer, bushing, low-tension bushing; also comprise lightning arrester, fuse; wherein lightning arrester, fuse all are positioned at the transformer body interior; lightning arrester places on the oil tank of transformer, before the bushing, the two ends of fuse are fixedly connected between lightning arrester and the bushing.
Preferably, the two ends of fuse are fixedly connected between lightning arrester and the bushing, and its stable performance is moved safe and reliablely, and transformer can not produce misoperation.
This transformer also comprises circuit breaker simultaneously, and circuit breaker is connected the secondary side of transformer.Circuit breaker has containment envelope outward, and sunlight is exposed to the sun and sleet corrodes but protective circuit breaker is avoided.
Bushing has the Safety protector that prevents that flashover from producing outward, can prevent the corona discharge phenomenon that produces because of rarefaction of air in the high altitude localities.
Stable performance of the present invention is moved safe and reliablely, can not produce misoperation, and transformer lead collar pipe racks has Safety protector, and defencive function is complete, and installation and maintenance are easy, can reduce significantly and install and use and maintenance cost.Because transformer of the present invention has the ability of resisting the heavy current impact that lightning impulse, external short circuit etc. cause; and prevent that bushing shell for transformer from the flashover phenomenon taking place under high height above sea level, high filthy condition; Practical Performance is good; can conveniently be used for single-phase or three-phase transformer; the protection facility can be easily installed in first and second side of transformer as required; reach the purpose of protection transformer, also can promote the use of in general area at adverse circumstances security of operation such as plateau climate condition, high filths.
Description of drawings
The present invention is described in further detail below in conjunction with the embodiment accompanying drawing.
Fig. 1 is a structural representation of the present invention
Fig. 2 is circuit theory diagrams of the present invention
Among the figure: 1-transformer body 2-lightning arrester 3-fuse 4-bushing 5-oil tank of transformer 6-low-tension bushing 7-cable outlet box 8-circuit breaker
Embodiment
As shown in Figure 1, lightning arrester 2, fuse 3, circuit breaker 8 all are positioned at the inside of transformer body 1, lightning arrester 2 places on the oil tank of transformer 5, before the bushing 4, the two ends of fuse 3 are fixedly connected between lightning arrester 3 and the bushing 4, and circuit breaker 8 is connected the secondary side (normally low-pressure side) of transformer.Outside circuit breaker 8 and the low-tension bushing 6 containment envelope is arranged, containment envelope is the cable outlet box normally, also can take moisture preventive measures such as heating and dehumidification or placement drier in the containment envelope as required.The Safety protector that prevents that flashover from producing is arranged outside the bushing 4.
Fig. 2 is to be the circuit theory diagrams of the present invention of example with the single-phase transformer.Be presented among the figure on oil tank of transformer 5 preceding two winding wirings and be connected with fuse 3 respectively, lightning arrester 2 is arranged respectively before fuse 3, circuit breaker 8 is connected the secondary side of transformer.
In the present embodiment, lightning arrester 2, fuse 3, low-voltage circuit breaker 8 all place the transformer body interior, can avoid the influence that transformer is produced because of awful weather; In the high altitude localities, because Thunderstorm Weather is many, lightning arrester 2 is installed on the oil tank of transformer 5 in transformer body 1, the lightning impulse that is subjected on the transmission line is involved the overvoltage that circuit produces, before entering transformer, discharge by lightning arrester, before lightning arrester 2 is installed on bushing 4, can effectively alleviate the harm that thunder and lightning causes, safeguard the transformer safe operation; Fuse 3 is installed between lightning arrester and bushing 4, fuse protection transformer is avoided the harm of overcurrent to transformer, when the electric current that enters transformer arrives certain value greatly, fuse moves, fault current is disconnected, the safety of protection transformer, fuse 3 is fixedly connected between lightning arrester 2 and the bushing 4, when fuse is subjected to the big function of current and fuses, can the power supply of faulty section be broken by being installed in isolating switch before the transformer or other measures, change then, operation is very easy; By lightning arrester, fuse and circuit breaker and transformer body are installed on one; and all be installed on the oil tank of transformer outside; change after breaking down and safeguard very convenient; both improved the security performance of transformer; can effectively prevent the protective device generation misoperation of transformer again; reduce the failure rate of transformer, install and the working service cost thereby reduce significantly.
The two ends of fuse 3 are fixedly connected between lightning arrester 2 and the bushing 4, and its stable performance is moved safe and reliablely, and transformer can not produce misoperation.
The Safety protector that prevents that flashover from producing is installed outside bushing 4, can be prevented the corona discharge phenomenon that produces because of rarefaction of air in the high altitude localities.Circuit breaker 8 outer installation containment envelopes, sunlight is exposed to the sun and sleet corrodes but protective circuit breaker is avoided.
Claims (4)
1. multipurpose combined protection transformer; include transformer body (1); the intrinsic oil tank of transformer of transformer (5), bushing (4), low-tension bushing (6); it is characterized in that also comprising lightning arrester (2), fuse (3); lightning arrester, fuse all are positioned at the transformer body interior; lightning arrester places on the oil tank of transformer, before the bushing, the two ends of fuse are fixedly connected between lightning arrester (2) and the bushing (4).
2. multipurpose combined protection transformer according to claim 1 is characterized in that this transformer also comprises circuit breaker (8), and circuit breaker is connected the secondary side of transformer.
3. multipurpose combined protection transformer according to claim 2 is characterized in that containment envelope is arranged outside the circuit breaker (8).
4. multipurpose combined protection transformer according to claim 1 is characterized in that the Safety protector that prevents that flashover from producing is arranged outside the bushing (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2005100313295A CN1832065B (en) | 2005-03-11 | 2005-03-11 | Multipurpose combined protection transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2005100313295A CN1832065B (en) | 2005-03-11 | 2005-03-11 | Multipurpose combined protection transformer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1832065A CN1832065A (en) | 2006-09-13 |
| CN1832065B true CN1832065B (en) | 2010-06-23 |
Family
ID=36994241
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2005100313295A Expired - Fee Related CN1832065B (en) | 2005-03-11 | 2005-03-11 | Multipurpose combined protection transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1832065B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108878123B (en) * | 2018-06-01 | 2021-07-06 | 中国电力科学研究院有限公司 | Distribution transformers with built-in arresters |
| CN110600247B (en) * | 2019-08-06 | 2023-05-05 | 湖南国丰电力设备有限公司 | Multipurpose combined protection transformer |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4743996A (en) * | 1986-05-22 | 1988-05-10 | Westinghouse Electric Corp. | Electrical distribution apparatus having fused draw-out surge arrester |
| US5663859A (en) * | 1996-04-16 | 1997-09-02 | Cooper Industries, Inc. | Disconnector switch for disconnecting a high-voltage arrester from ground |
| CN2570937Y (en) * | 2002-09-26 | 2003-09-03 | 郑龙 | Suspended self-protection transformer |
-
2005
- 2005-03-11 CN CN2005100313295A patent/CN1832065B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4743996A (en) * | 1986-05-22 | 1988-05-10 | Westinghouse Electric Corp. | Electrical distribution apparatus having fused draw-out surge arrester |
| US5663859A (en) * | 1996-04-16 | 1997-09-02 | Cooper Industries, Inc. | Disconnector switch for disconnecting a high-voltage arrester from ground |
| CN2570937Y (en) * | 2002-09-26 | 2003-09-03 | 郑龙 | Suspended self-protection transformer |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1832065A (en) | 2006-09-13 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100623 Termination date: 20210311 |