CN101853734A - Shell-type transformer winding static board - Google Patents
Shell-type transformer winding static board Download PDFInfo
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- CN101853734A CN101853734A CN201010171526A CN201010171526A CN101853734A CN 101853734 A CN101853734 A CN 101853734A CN 201010171526 A CN201010171526 A CN 201010171526A CN 201010171526 A CN201010171526 A CN 201010171526A CN 101853734 A CN101853734 A CN 101853734A
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- transformer winding
- shell
- type transformer
- board
- paper tape
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Abstract
The invention discloses a shell-type transformer winding static board, belonging to a transformer winding static board, aiming at providing a high-voltage transformer winding static board which can avoid electric field concentration and eliminate point discharge phenomenon. The shell-type transformer winding static board comprises an insulating board which is in a rectangle and has ring-shaped structure; the surface of the insulating board (4) is covered with a circle of metal composite crepe paper tape (1) which is wound in a spiral way along the ring-shaped direction of the insulating board; the head end and the tail end of the metal composite crepe paper tape are arranged at a certain interval; and the insulating board (4) is provided with a lead (2) electrically connected with the metal composite crepe paper tape (1). The shell-type transformer winding static board has small volume and light weight, hardly has the electric field concentration and the point discharge phenomenon, improves the capability of resisting the outside overvoltage of a shell-type transformer winding, and is an ideal static board matched with an electric power or an electric stove shell-type transformer winding for use.
Description
Technical field: the present invention relates to a kind of shell type transformer winding, relate in particular to a kind of shell-type transformer winding static board.
Background technology: well-known, in order to improve the Gradient distribution of surge voltage incoming wave, to increase a static board in the end of incoming cables of 110 kilovolts and above shell type transformer winding usually, to improve the dielectric strength of winding end of incoming cables.At present, the static board of shell type transformer winding by the insulation board of rectangular ring structure, by spiral way twine the flat copper strips that is coated on this insulation board surface, and this copper strips twine synchronously liner between adjacent each circle copper strips paper tape and the lead-in wire that is fixed on the copper strips constitute; Mainly there is following defective in the static board of this structure:
1) because copper strips is thicker, insulation board is thinner, and its edge is easy to generate wiredrawn edge, burr or gauffer occurs in winding process, therefore cause electric field to be concentrated easily, produce point discharge;
2) because the circular arc girth at the outer turning of insulation board is far longer than the circular arc girth at interior turning, therefore copper strips forms accumulation easily in interior corner, thereby the turning gauge increases in causing, shape is restive and produce wedge angle, causes the winding overhang electric field distortion easily, generation " sliding sudden strain of a muscle type " is creepage and puncture insulating barrier.
Summary of the invention: at the above-mentioned defective that exists in the prior art, the present invention aims to provide a kind of shell-type transformer winding static board that can avoid electric field to concentrate, eliminate point discharge phenomenon.
To achieve these goals, the present invention by the following technical solutions: it comprises the insulation board of rectangular ring structure; Be coated with the metal composite wrinkle paper tape that twines in a week, the head end of this metal composite wrinkle paper tape and space from end certain distance on the surface of insulation board along the circumferential direction of this insulation board by spiral way; Insulation board is provided with and the charged lead-in wire that is connected of metal composite crimped paper.
The seamed edge of insulation board is a round-corner transition; Circumferential direction on the surface of metal composite wrinkle paper tape along insulation board is coated with all insulating papers.
Compared with the prior art, therefore the present invention has plurality of advantages owing to adopted technique scheme; Make a concrete analysis of as follows:
1) soft because metal composite wrinkle paper tape is thin, percentage of elongation is big (percentage of elongation is 50～100%), therefore can more easily its winding be coated on the surface of insulation board, not only improve production efficiency, but also reduced the volume and weight of static board, and twine coat tightr;
2) because the thickness of metal composite wrinkle paper tape is far smaller than the gross thickness of copper strips and paper tape, therefore not only overcome the defective that edge when twining is easy to generate wiredrawn edge, burr or gauffer occurs, and under the situation that does not increase static board thickness, also can increase the thickness of insulation board, thereby increased the excessive fillet radius of curvature of big insulation board seamed edge effectively, the edge is easy to generate wiredrawn edge, burr or the defective of gauffer occurs when having avoided further twining, and has thoroughly eliminated to concentrate because of electric field to produce the phenomenon of point discharge;
3) because metal composite wrinkle paper tape percentage of elongation is big and thin and soft, therefore corner can not form accumulation, gauffer and wedge angle in insulation board, thoroughly overcome winding overhang and be easy to generate phenomenons such as electric field distortion, " sliding sudden strain of a muscle type " is creepage, thereby improved the ability of shell type transformer winding opposing exterior overvoltage.
Description of drawings:
Fig. 1 is a structural representation of the present invention;
Fig. 2 is the A-A cutaway view of Fig. 1.
Among the figure: metal composite wrinkle paper tape 1 lead-in wire 2 insulating papers 3 insulation boards 4 metal formings 5
Embodiment: the invention will be further described below in conjunction with accompanying drawing and specific embodiment:
In Fig. 1～2, the circumferential direction on the surface of the insulation board 4 of rectangular ring structure along this insulation board is coated with the metal composite wrinkle paper tape 1 that twines by spiral way in a week, the head end of this metal composite wrinkle paper tape and space from end certain distance.Metal composite wrinkle paper tape 1 is a kind of crimped paper that is similar to masking foil of being produced by Dan Nisong company, and it is that the insulating paper 3 of 0.2mm and aluminium foil 5 that a layer thickness is 0.02mm are firmly sticking and form by a layer thickness; Be provided with the lead-in wire 2 that is electrically connected with aluminium foil 5 at the edge of insulation board 4.For fear of forming wedge angle, also for the ease of twining, the seamed edge of insulation board 4 adopts round-corner transition simultaneously; For safety, the circumferential direction on the surface of metal composite wrinkle paper tape 1 along insulation board 4 also is coated with all insulating papers 3.
Claims (3)
1. shell-type transformer winding static board comprises the insulation board of rectangular ring structure; It is characterized in that: be coated with the metal composite wrinkle paper tape (1) that twines by spiral way in a week on the surface of insulation board (4) along the circumferential direction of this insulation board, the starting point and the terminating point of this metal composite wrinkle paper tape keep at a certain distance away; Insulation board (4) is provided with the lead-in wire (2) that is electrically connected with metal composite wrinkle paper tape (1).
2. shell-type transformer winding static board according to claim 1 is characterized in that: the seamed edge of insulation board (4) is a round-corner transition.
3. shell-type transformer winding static board according to claim 1 and 2 is characterized in that: the circumferential direction on the surface of metal composite wrinkle paper tape (1) along insulation board (4) is coated with all insulating papers (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010171526A CN101853734A (en) | 2010-05-13 | 2010-05-13 | Shell-type transformer winding static board |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010171526A CN101853734A (en) | 2010-05-13 | 2010-05-13 | Shell-type transformer winding static board |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101853734A true CN101853734A (en) | 2010-10-06 |
Family
ID=42805158
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010171526A Pending CN101853734A (en) | 2010-05-13 | 2010-05-13 | Shell-type transformer winding static board |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101853734A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105719802A (en) * | 2014-12-05 | 2016-06-29 | 特变电工沈阳变压器集团有限公司 | Electrostatic plate structure for transformer |
| CN106683879A (en) * | 2017-03-17 | 2017-05-17 | 保定天威保变电气股份有限公司 | Process for processing shell type transformer insulating partition board |
| CN113689969A (en) * | 2021-07-13 | 2021-11-23 | 江苏中容电气有限公司 | Single-row transposed conductor and preparation method thereof |
-
2010
- 2010-05-13 CN CN201010171526A patent/CN101853734A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105719802A (en) * | 2014-12-05 | 2016-06-29 | 特变电工沈阳变压器集团有限公司 | Electrostatic plate structure for transformer |
| CN106683879A (en) * | 2017-03-17 | 2017-05-17 | 保定天威保变电气股份有限公司 | Process for processing shell type transformer insulating partition board |
| CN106683879B (en) * | 2017-03-17 | 2018-08-31 | 保定天威保变电气股份有限公司 | A kind of processing technology of shell type transformer insulating barrier |
| CN113689969A (en) * | 2021-07-13 | 2021-11-23 | 江苏中容电气有限公司 | Single-row transposed conductor and preparation method thereof |
| CN113689969B (en) * | 2021-07-13 | 2023-04-07 | 江苏中容电气有限公司 | Single-row transposed conductor and preparation method thereof |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20101006 |