CN204496970U - Hydroelectric station High voltage output cable - Google Patents
Hydroelectric station High voltage output cable Download PDFInfo
- Publication number
- CN204496970U CN204496970U CN201520243926.3U CN201520243926U CN204496970U CN 204496970 U CN204496970 U CN 204496970U CN 201520243926 U CN201520243926 U CN 201520243926U CN 204496970 U CN204496970 U CN 204496970U
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- CN
- China
- Prior art keywords
- conductor
- high voltage
- voltage output
- output cable
- hydroelectric station
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Abstract
The utility model discloses a kind of hydroelectric station High voltage output cable; comprise successively from inside to outside: conductor, semi-conductive shield, polyethylene layer, semiconductive insulation shield layer, semiconductor expansion buffer belt, semiconductor expansion belt, stainless protection layer and PVC protective layer; also be provided with copper-clad aluminum conductor screen, be located between described semiconductor expansion buffer belt and described semiconductor expansion belt to the rounded arrangement of described copper-clad aluminum conductor screen.The utility model discloses a kind of little, long service life, failure rate is low hydroelectric station High voltage output cable that takes up room.
Description
Technical field
The utility model relates to hydroelectric station High voltage output field of cable technology, particularly relates to a kind of little, long service life, failure rate is low hydroelectric station High voltage output cable that takes up room.
Background technology
Along with the development of hydroelectric station superhigh pressure output cable technology, the application of 220KV superhigh pressure output cable in electric power system major loop is also more and more extensive.But High voltage output cable of the prior art is in the process of zero load, load, and also there is fluctuation of service, what have even there occurs dielectric breakdown accident, brings comparatively serious loss to electric power system.
Therefore, a kind of little, long service life, failure rate is low hydroelectric station High voltage output cable that takes up room is needed badly.
Utility model content
The purpose of this utility model is to provide a kind of little, long service life, failure rate is low hydroelectric station High voltage output cable that takes up room.
To achieve these goals; the technical scheme that the utility model provides is: provide a kind of hydroelectric station High voltage output cable; comprise successively from inside to outside: conductor, semi-conductive shield, polyethylene layer, semiconductive insulation shield layer, semiconductor expansion buffer belt, semiconductor expansion belt, stainless protection layer and PVC protective layer; also be provided with copper-clad aluminum conductor screen, be located between described semiconductor expansion buffer belt and described semiconductor expansion belt to the rounded arrangement of described copper-clad aluminum conductor screen.
Top and the terminal of cable are equipped with current transformer.
Described conductor is four groups of soft copper conductor strand structures, and often organizes described soft copper conductor and included some copper cash silks, and described total conductor diameter is 35 ~ 40 millimeters.
Described PVC protective layer is also provided with conductor wrapper layer outward.
Described conductor wrapper layer is equadag coating.
Described polyethylene layer is crosslinked polyetylene insulated layer, and thickness is 25 ~ 30 millimeters.
Described conductor is four groups of soft copper conductors, and the cross section often organizing soft copper conductor is sector structure, and often organizes described soft copper conductor and included some copper cash silks, and described total conductor diameter is 35 ~ 40 millimeters.
Compared with prior art, due in the High voltage output cable of the utility model hydroelectric station, be also provided with copper-clad aluminum conductor screen, be located between described semiconductor expansion buffer belt and described semiconductor expansion belt to the rounded arrangement of described copper-clad aluminum conductor screen.By described copper-clad aluminum conductor screen, shielding action can be played to the utmost, and the surface area of this screen can be done enough large, improve shield effectiveness, reduce failure rate, to improve the stability of cable, and effectively can save copper material, reduce costs.
By following description also by reference to the accompanying drawings, the utility model will become more clear, and these accompanying drawings are for explaining embodiment of the present utility model.
Accompanying drawing explanation
Fig. 1 is the cross-sectional view of the utility model hydroelectric station High voltage output cable embodiment.
Fig. 2 is the schematic diagram that the two ends of hydroelectric station High voltage output cable are as shown in Figure 1 provided with current transformer.
Fig. 3 is the schematic diagram of an embodiment of the conductor of hydroelectric station High voltage output cable as shown in Figure 1.
Fig. 4 is the schematic diagram of another embodiment of the conductor of hydroelectric station High voltage output cable as shown in Figure 1.
Embodiment
With reference now to accompanying drawing, describe embodiment of the present utility model, element numbers similar in accompanying drawing represents similar element.As mentioned above; as shown in Figure 1; the hydroelectric station High voltage output cable 100 that the utility model provides; comprise successively from inside to outside: conductor 1, semi-conductive shield 2, polyethylene layer 3, semiconductive insulation shield layer 4, semiconductor expansion buffer belt 5, semiconductor expansion belt 7, stainless protection layer 8 and PVC protective layer 9; also be provided with copper-clad aluminum conductor screen 6, be located between described semiconductor expansion buffer belt 5 and described semiconductor expansion belt 7 to the rounded arrangement of described copper-clad aluminum conductor screen 6.
In an embodiment, as shown in Figure 2, the present embodiment comprises three cables 11, and the top of cable 11 and terminal are equipped with current transformer 12.
In an embodiment, as shown in Figure 3, described conductor 1 is four groups of soft copper conductor 1a lay configuration, and often organizes described soft copper conductor 1a and included some copper cash silks, and described conductor 1 overall diameter is 35 ~ 40 millimeters.
In an embodiment, as shown in Figure 1, described PVC protective layer 9 is outer is also provided with conductor wrapper layer 10.
In above-described embodiment, described conductor wrapper layer 10 is equadag coating.
In an embodiment, described polyethylene layer 3 is crosslinked polyetylene insulated layer, and thickness is 25 ~ 30 millimeters.
In an embodiment, as shown in Figure 4, described conductor 1 is four groups of soft copper conductor 1b, and the cross section often organizing soft copper conductor 1b is sector structure, and often organizes described soft copper conductor 1b and included some copper cash silks, and described total conductor diameter is 35 ~ 40 millimeters.
Compared with prior art, composition graphs 1 ~ 4, due in the utility model hydroelectric station High voltage output cable 100, be also provided with copper-clad aluminum conductor screen 6, be located between described semiconductor expansion buffer belt 5 and described semiconductor expansion belt 7 to the rounded arrangement of described copper-clad aluminum conductor screen 6.By described copper-clad aluminum conductor screen 6, shielding action can be played to the utmost, and the surface area of this screen can be done enough large, improve shield effectiveness, reduce failure rate, to improve the stability of cable, and effectively can save copper material, reduce costs.
Above disclosedly be only preferred embodiment of the present utility model, certainly can not limit the interest field of the utility model with this, therefore according to the equivalent variations that the utility model claim is done, still belong to the scope that the utility model is contained.
Claims (7)
1. a hydroelectric station High voltage output cable; comprise successively from inside to outside: conductor, semi-conductive shield, polyethylene layer, semiconductive insulation shield layer, semiconductor expansion buffer belt, semiconductor expansion belt, stainless protection layer and PVC protective layer; it is characterized in that; also be provided with copper-clad aluminum conductor screen, be located between described semiconductor expansion buffer belt and described semiconductor expansion belt to the rounded arrangement of described copper-clad aluminum conductor screen.
2. hydroelectric station as claimed in claim 1 High voltage output cable, it is characterized in that, top and the terminal of cable are equipped with current transformer.
3. hydroelectric station as claimed in claim 1 High voltage output cable, it is characterized in that, described conductor is four groups of soft copper conductor strand structures, and often organizes described soft copper conductor and included some copper cash silks, and described total conductor diameter is 35 ~ 40 millimeters.
4. hydroelectric station as claimed in claim 1 High voltage output cable, it is characterized in that, described PVC protective layer is also provided with conductor wrapper layer outward.
5. hydroelectric station as claimed in claim 4 High voltage output cable, it is characterized in that, described conductor wrapper layer is equadag coating.
6. hydroelectric station as claimed in claim 1 High voltage output cable, it is characterized in that, described polyethylene layer is crosslinked polyetylene insulated layer, and thickness is 25 ~ 30 millimeters.
7. hydroelectric station as claimed in claim 1 High voltage output cable, it is characterized in that, described conductor is four groups of soft copper conductors, and the cross section often organizing soft copper conductor is sector structure, and often organize described soft copper conductor and included some copper cash silks, and described total conductor diameter is 35 ~ 40 millimeters.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520243926.3U CN204496970U (en) | 2015-04-21 | 2015-04-21 | Hydroelectric station High voltage output cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520243926.3U CN204496970U (en) | 2015-04-21 | 2015-04-21 | Hydroelectric station High voltage output cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204496970U true CN204496970U (en) | 2015-07-22 |
Family
ID=53576266
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520243926.3U Expired - Fee Related CN204496970U (en) | 2015-04-21 | 2015-04-21 | Hydroelectric station High voltage output cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204496970U (en) |
-
2015
- 2015-04-21 CN CN201520243926.3U patent/CN204496970U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20150722 Termination date: 20160421 |