CN201369238Y - Sealing cover board for current transformer - Google Patents
Sealing cover board for current transformer Download PDFInfo
- Publication number
- CN201369238Y CN201369238Y CNU2008202211789U CN200820221178U CN201369238Y CN 201369238 Y CN201369238 Y CN 201369238Y CN U2008202211789 U CNU2008202211789 U CN U2008202211789U CN 200820221178 U CN200820221178 U CN 200820221178U CN 201369238 Y CN201369238 Y CN 201369238Y
- Authority
- CN
- China
- Prior art keywords
- cover board
- current transformer
- plate body
- cover plate
- center
- 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 - Lifetime
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- Transformers For Measuring Instruments (AREA)
Abstract
The utility model discloses a sealing cover board for a current transformer, which is characterized in that the sealing cover board comprises a cover board body; an air charging hole which can be opened and closed is arranged at the central position of the cover board body; a leakage detection hole which can be opened and closed is arranged right below the center of the cover board body; and a lap of seal groove is arranged at the end face of one side of the cover board body, surrounding the center of the cover board body. The sealing cover board not only has the functions of sealing and detecting leakage but also can control the moisture of the current transformer during the assembling process.
Description
Technical field
The utility model relates to a kind of current transformer seal cover board, belongs to the electric equipment products technical field.
Background technology
After current transformer unit packing on the fully closed combined electric unit product is finished; according to technological requirement; current transformer one end is sealed up and is sent into dry house behind the protective cover and dry, and the oven dry back is released dry house and must be assembled at once, otherwise is difficult to guarantee the moisture in the current transformer.After current transformer and circuit breaker always are fitted together, when circuit breaker is hunted leak, the protective cover on the current transformer must be dismantled and just can hunt leak, it is very inconvenient to operate; In addition, because the concentration of the concentration ratio air of SF6 gas is big, when hunting leak, promptly inconvenience is also inaccurate.
The utility model content
The purpose of this utility model is to provide a kind of current transformer seal cover board that can seal and be convenient to hunt leak.
To achieve these goals, the technical solution of the utility model has adopted a kind of current transformer seal cover board, comprise the cover plate body, but be provided with the air-filled pore of folding at the center of cover plate body, but be provided with the leak hunting aperture of folding under the center of cover plate body, be provided with a circle seal groove around cover plate body center in a side end face of cover plate body.
A described air-filled pore and a blanking cover are assembled together.
Be equipped with a blanking cover on the described leak hunting aperture.
Described seal groove is the T-shape structure.
Evenly be laid with at least one circle unthreaded hole at cover plate body periphery.
But cover plate body of the present utility model center is provided with the air-filled pore of folding, but be provided with the leak hunting aperture of folding under the center of cover plate body, after current transformer and circuit breaker always are fitted together, when circuit breaker is hunted leak, seal cover board need not be dismantled, only need open air-filled pore and leak hunting aperture, leak detector is extend into leak hunting aperture hunts leak, because the SF6 gas concentration is bigger than air, the SF6 gas that spills overflows from the leak hunting aperture of below, has guaranteed leak detection result's accuracy.In addition, be provided with a circle seal groove around cover plate body center, realized good sealing effectiveness in a side end face of cover plate body.Seal cover board of the present utility model is a kind of multi-purpose cover plate indoor, outdoor, that groove, slotless are arranged that is suitable for.Structure of the present utility model can seal and be convenient to leak detection, and effectively the moisture in the Control current instrument transformer assembling process has not only improved product quality, and improved production efficiency greatly, has alleviated working strength of workers, has guaranteed the fail safe of assembling.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is the end view of Fig. 1;
Fig. 3 is the partial enlarged drawing at A place among Fig. 2.
Embodiment
As shown in Figure 1, 2, 3, the utility model is provided with threaded air-filled pore 3 at the center of cover plate body 6, an air-filled pore 3 and a plug screw device, under the center of cover plate body 6, be provided with threaded circuit breaker leak hunting aperture 4, be provided with a circle seal groove 5 in a side end face of cover plate body 6, seal groove 5 adopts T-shape groove structure, has realized good sealing effectiveness, is laid with two circle unthreaded holes 1,2 on cover plate body 6.The vertical center line of the line of centres of unthreaded hole 1, unthreaded hole 2 and cover plate body 6 be 15 ° angle of inclination.
During use,, just use unthreaded hole 1 by on the bolted current transformer shell flange out of doors if dock with the current transformer shell flange of open air; If dock, just use unthreaded hole 2 by on the bolted current transformer shell flange indoors with indoor current transformer shell flange; If be not with seal groove on the outdoor or indoor current transformer shell flange face, just a side end face of being with seal groove 5 on the cover plate body 6 loaded onto behind the sealing ring with current transformer shell flange face not and docked with seal groove; If be with seal groove on the outdoor or indoor current transformer shell flange face, just with on the cover plate body 6 not with a side end face of seal groove with dock after the current transformer shell flange face of being with seal groove is loaded onto sealing ring.
During moisture in the Control current instrument transformer: with the air-filled pore on the seal cover plate body 63 and 4 two screwed holes of circuit breaker leak hunting aperture respectively with plug stifled on, after the current transformer packing finishes, seal up seal cover board at current transformer one end and push dry house and dry, oven dry finishes the back and releases dry house and seal up seal cover board immediately at the current transformer other end and wait for general assembly.So not only play good sealing function, and can control the moisture in the current transformer effectively.
When circuit breaker is hunted leak, threaded circuit breaker leak hunting aperture 4 under the center on the seal cover plate body 6 and the plug on the air-filled pore are twisted, by this hole leak detector is stretched into and to hunt leak, from since the SF6 gas concentration bigger than air, SF6 gas overflows from leak hunting aperture, has guaranteed leak detection result's accuracy.
Claims (5)
1, a kind of current transformer seal cover board, it is characterized in that: comprise the cover plate body, but be provided with the air-filled pore of folding at the center of cover plate body, but be provided with the leak hunting aperture of folding under the center of cover plate body, be provided with a circle seal groove around cover plate body center in a side end face of cover plate body.
2, current transformer seal cover board according to claim 1 is characterized in that: be equipped with a blanking cover on the described air-filled pore.
3, current transformer seal cover board according to claim 1 is characterized in that: be equipped with a blanking cover on the described leak hunting aperture.
4, according to arbitrary described current transformer seal cover board among the claim 1-3, it is characterized in that: described seal groove is the T-shape structure.
5, current transformer seal cover board according to claim 4 is characterized in that: evenly be laid with at least one circle unthreaded hole at cover plate body periphery.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202211789U CN201369238Y (en) | 2008-11-21 | 2008-11-21 | Sealing cover board for current transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202211789U CN201369238Y (en) | 2008-11-21 | 2008-11-21 | Sealing cover board for current transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201369238Y true CN201369238Y (en) | 2009-12-23 |
Family
ID=41488129
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008202211789U Expired - Lifetime CN201369238Y (en) | 2008-11-21 | 2008-11-21 | Sealing cover board for current transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201369238Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102936743A (en) * | 2012-11-20 | 2013-02-20 | 隆昌山川精密焊管有限责任公司 | Electroplated micro-crack chromium slot, manufacture method and leakage detection method |
-
2008
- 2008-11-21 CN CNU2008202211789U patent/CN201369238Y/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102936743A (en) * | 2012-11-20 | 2013-02-20 | 隆昌山川精密焊管有限责任公司 | Electroplated micro-crack chromium slot, manufacture method and leakage detection method |
| CN102936743B (en) * | 2012-11-20 | 2015-02-18 | 隆昌山川精密焊管有限责任公司 | Electroplated micro-crack chromium slot, manufacture method and leakage detection method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20091223 |