CN201796709U - Shield device for reducing lead surface field intensity - Google Patents
Shield device for reducing lead surface field intensity Download PDFInfo
- Publication number
- CN201796709U CN201796709U CN2010205148657U CN201020514865U CN201796709U CN 201796709 U CN201796709 U CN 201796709U CN 2010205148657 U CN2010205148657 U CN 2010205148657U CN 201020514865 U CN201020514865 U CN 201020514865U CN 201796709 U CN201796709 U CN 201796709U
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- crimped paper
- crepe paper
- metallization
- layer metal
- outer layer
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Abstract
The utility model relates to a shield device, in particular to the shield device for reducing the lead surface field intensity, which is arranged between a coil head and a sleeve of a large-scale transformer, and comprises a cable, wherein the shield device covers outside the cable, the shield device comprises an inner layer of metallization crepe paper, an inner layer of crepe paper, a middle layer of metallization crepe paper, a rectangular copper wire, an outer layer of metallization crepe paper and an outer layer of crepe paper, the inner layer of metallization crepe paper covers the cable, the inner layer crepe paper covers the inner layer of metallization crepe paper, the middle layer of metallization crepe paper covers the inner layer of crepe paper, the outer layer of metallization crepe paper covers the middle layer of metallization crepe paper, the rectangular copper wire is arranged between the outer layer of metallization crepe paper and the middle layer of metallization crepe paper, and the outer layer of crepe paper covers the outer layer of metallization crepe paper. The shield device has simple structure, saves material, reduces consumption, and reduces the surface field intensity.
Description
Technical field
The utility model is a kind of screening arrangement, particularly reduces the screening arrangement of wire surface field intensity between a kind of winding protruding head of high-power transformer and the sleeve pipe.
Background technology
Now the medium-and-large-sized transformer of technology is to the lead-in wire between the sleeve pipe, surface electric field intensity, and shielding properties is poor, the efficient that indirect influence is used.
Chinese patent CN200710017004.0 discloses a kind of transformer coil and lifts one's head the shielding and the insulating treatment method at place, and its special character is may further comprise the steps: a. fills foil shielding layer, the b. wrapping crimped paper that metallizes, and c. wraps up insulating paper.The invention has the beneficial effects as follows, improved electric-field intensity distribution, form screen, shielding and insulation effect are good, improve the insulation safety reliability, are mainly used in voltage 110～220kV oil-filled transformer, also are applicable to other transformer.This structure relative complex is operated cumbersome.
Summary of the invention
The utility model mainly is to solve the deficiencies in the prior art, provides a kind of simple in structure, and use cost is hanged down the screening arrangement of the good reduction wire surface field intensity of processing performance.
Above-mentioned technical problem of the present utility model is mainly solved by following technical proposals:
A kind of screening arrangement that reduces the wire surface field intensity, comprise cable, described cable is coated with screening arrangement, described screening arrangement comprises inner layer metal crimped paper, internal layer crimped paper, middle level metallization crimped paper, flat type copper wire, outer layer metal crimped paper and outer crimped paper, described cable is coated with inner layer metal crimped paper, inner layer metal crimped paper is coated with internal layer crimped paper, internal layer crimped paper is coated with middle level metallization crimped paper, middle level metallization crimped paper is coated with outer layer metal crimped paper, be provided with flat type copper wire between described outer layer metal crimped paper and middle level metallization crimped paper, described outer layer metal crimped paper is coated with outer crimped paper.This utility model patent, make the electrode diameter of cable be amplified to suitable size by crimped paper and metallization crimped paper, reduce the field intensity on surface, by flat type copper wire and outer layer metal crimped paper, make the metallization crimped paper and the cable equipotential on flat type copper wire and both sides thereof, by using this structure can reduce the sectional area of cable, not only materials saving but also good manufacturability greatly.
As preferably, metal covering and cable in the described inner layer metal crimped paper fit, and the metal covering in the described middle level metallization crimped paper contacts with flat type copper wire, and the metal covering in the outer layer metal crimped paper contacts with flat type copper wire.
As preferably, described middle level metallization crimped paper partly contacts with outer layer metal crimped paper.
As preferably, the coating that fits of described cable, inner layer metal crimped paper, internal layer crimped paper and middle level metallization crimped paper, the coating that fits of outer layer metal crimped paper and outer crimped paper.
Therefore, the screening arrangement of the reduction wire surface field intensity that the utility model provides, simple in structure, materials saving reduces surface electric field intensity.
Description of drawings
Fig. 1 is an assembly structure schematic diagram of the present utility model.
Embodiment
Below by embodiment, and in conjunction with the accompanying drawings, the technical solution of the utility model is described in further detail.
Embodiment: as shown in Figure 1, a kind of screening arrangement that reduces the wire surface field intensity, comprise cable 1, described cable 1 is coated with screening arrangement, described screening arrangement comprises inner layer metal crimped paper 2, internal layer crimped paper 3, middle level metallization crimped paper 4, flat type copper wire 5, outer layer metal crimped paper 6 and outer crimped paper 7, described cable 1 is coated with inner layer metal crimped paper 2, inner layer metal crimped paper 2 is coated with internal layer crimped paper 3, internal layer crimped paper 3 is coated with middle level metallization crimped paper 4, middle level metallization crimped paper 4 is coated with outer layer metal crimped paper 6, described outer layer metal crimped paper 6 and middle level 4 of crimped papers of metallization are provided with flat type copper wire 5, described outer layer metal crimped paper 6 is coated with outer crimped paper 7, metal covering and cable 1 in the described inner layer metal crimped paper 2 fit, metal covering in the described middle level metallization crimped paper 4 contacts with flat type copper wire 5, metal covering in the outer layer metal crimped paper 6 contacts with flat type copper wire 5, described middle level metallization crimped paper 4 contacts with outer layer metal crimped paper 6 parts, described cable 1, inner layer metal crimped paper 2, the coating that fits of internal layer crimped paper 3 and middle level metallization crimped paper 4, outer layer metal crimped paper 6 and outer crimped paper 7 coating that fits.
Claims (4)
1. screening arrangement that reduces the wire surface field intensity, comprise cable (1), it is characterized in that: described cable (1) is coated with screening arrangement, described screening arrangement comprises inner layer metal crimped paper (2), internal layer crimped paper (3), middle level metallization crimped paper (4), flat type copper wire (5), outer layer metal crimped paper (6) and outer crimped paper (7), described cable (1) is coated with inner layer metal crimped paper (2), inner layer metal crimped paper (2) is coated with internal layer crimped paper (3), internal layer crimped paper (3) is coated with middle level metallization crimped paper (4), middle level metallization crimped paper (4) is coated with outer layer metal crimped paper (6), be provided with flat type copper wire (5) between described outer layer metal crimped paper (6) and middle level metallization crimped paper (4), described outer layer metal crimped paper (6) is coated with outer crimped paper (7).
2. the screening arrangement of reduction wire surface field intensity according to claim 1, it is characterized in that: metal covering in the described inner layer metal crimped paper (2) and cable (1) fit, metal covering in the described middle level metallization crimped paper (4) contacts with flat type copper wire (5), and the metal covering in the outer layer metal crimped paper (6) contacts with flat type copper wire (5).
3. the screening arrangement of reduction wire surface field intensity according to claim 1 and 2 is characterized in that: described middle level metallization crimped paper (4) contacts with outer layer metal crimped paper (6) part.
4. the screening arrangement of reduction wire surface field intensity according to claim 1 and 2, it is characterized in that: the coating that fits of described cable (1), inner layer metal crimped paper (2), internal layer crimped paper (3) and middle level metallization crimped paper (4), outer layer metal crimped paper (6) and outer crimped paper (7) coating that fits.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205148657U CN201796709U (en) | 2010-09-03 | 2010-09-03 | Shield device for reducing lead surface field intensity |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205148657U CN201796709U (en) | 2010-09-03 | 2010-09-03 | Shield device for reducing lead surface field intensity |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201796709U true CN201796709U (en) | 2011-04-13 |
Family
ID=43851611
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205148657U Expired - Lifetime CN201796709U (en) | 2010-09-03 | 2010-09-03 | Shield device for reducing lead surface field intensity |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201796709U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104916413A (en) * | 2015-06-05 | 2015-09-16 | 卧龙电气集团股份有限公司 | AT power supply 330 kV traction transformer lead capacitive shielding structure |
| CN107195442A (en) * | 2017-04-26 | 2017-09-22 | 正泰电气股份有限公司 | A kind of outlet seal of reactor |
-
2010
- 2010-09-03 CN CN2010205148657U patent/CN201796709U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104916413A (en) * | 2015-06-05 | 2015-09-16 | 卧龙电气集团股份有限公司 | AT power supply 330 kV traction transformer lead capacitive shielding structure |
| CN107195442A (en) * | 2017-04-26 | 2017-09-22 | 正泰电气股份有限公司 | A kind of outlet seal of reactor |
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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: 20110413 |