CN202996545U - Continuous coil for longitudinal oil ways of power transformers - Google Patents
Continuous coil for longitudinal oil ways of power transformers Download PDFInfo
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- CN202996545U CN202996545U CN 201220704215 CN201220704215U CN202996545U CN 202996545 U CN202996545 U CN 202996545U CN 201220704215 CN201220704215 CN 201220704215 CN 201220704215 U CN201220704215 U CN 201220704215U CN 202996545 U CN202996545 U CN 202996545U
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- oil duct
- continuous coil
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Abstract
The utility model discloses a continuous coil for longitudinal oil ways of power transformers. The continuous coil comprises an insulation end ring, a dovetail bearer, paper filler strips, flat paper-wrapped wires, longitudinal oil ways and forming support strips. The dovetail bearer and the forming support strips are used as transverse oil ways of the continuous coil, small bearer curtains are used as the longitudinal oil ways and formed by cutting paper boards 3-4mm in thickness into small bearers 10mm in length and width and attaching the small bearers on paper strips 0.5mm in width at intervals by latex. When the coil is coiled, the small bearer curtains are uniformly backed between coil cakes of certain turns, so that a hollowed-out oil way structure is formed on the longitudinal curved surface. The continuous coil has the advantages that oil flow passages of the coil in perpendicular direction are created through the longitudinal oil ways, heat flow of oil can circulate in the coil, and heat radiation of the coil is benefited. The continuous coil is applicable to products of 35KV power transformers and the like.
Description
Technical field
The utility model relates to the vertical oil duct continuous winding of a kind of 35kV power transformer.
Background technology
Tradition 35kV power transformer winding structure be mainly with hard insulating paper cylinder as inner skeleton, stay is as supporting dovetail cushion block as horizontal oil duct, laterally oil duct is horizontal direction, is unfavorable for the thermal cycle convection current of oil, the impact heat radiation.
The utility model content
The purpose of this utility model is to provide a kind of simple in structure, easy to use, vertical oil duct to open up coil oil flow channel in vertical direction, the hot-fluid circulation of oil can be circulated up and down by coil inside, be conducive to the vertical oil duct continuous winding of 35kV power transformer of coil heat radiation.
To achieve these goals, the technical solution of the utility model is: provide a kind of power transformer vertical oil duct continuous winding, wherein, described coil is made of insulating end ring, dovetail cushion block, paper washer bar, paper bag strip conductor, vertical oil duct, shaping stay; With dovetail pad, the shaping stay horizontal oil duct as continuous winding, as vertical oil duct, the small cushion block curtain cuts into by 3～4mm millboard small cushion block that length and width are respectively 10mm and is attached at a certain distance on the 0.5mm paper slip with latex and forms with the small cushion block curtain.During coil winding, between the line cake of certain number of turn, make it at the oil channel structure of vertical Surface forming hollow out on the unified pad of small cushion block curtain.
The beneficial effects of the utility model are: vertically oil duct has been opened up coil oil flow channel in vertical direction, and the hot-fluid circulation of oil can be circulated up and down by coil inside, is conducive to the heat radiation of coil.
Description of drawings
Fig. 1 is the structural representation of the vertical oil duct continuous winding of the utility model power transformer;
Fig. 2 is the schematic diagram of the A-A direction in Fig. 1;
Fig. 3 is the utility model plan structure schematic diagram;
In figure: 1. insulating end ring; 2. dovetail cushion block; 3. paper washer bar; 4. paper bag strip conductor; 5. vertical oil duct; 6. shaping stay.
Embodiment
For the technology contents that describes the vertical oil duct continuous winding of the utility model power transformer in detail, structural feature, below in conjunction with execution mode and coordinate accompanying drawing to be described further.
As shown in Figure 1, 2, 3, the vertical oil duct continuous winding of the utility model power transformer is made of insulating end ring 1, dovetail cushion block 2, paper washer bar 3, paper bag strip conductor 4, vertical oil duct 5, shaping stay 6; With dovetail pad, the shaping stay horizontal oil duct as continuous winding, as vertical oil duct, the small cushion block curtain cuts into by 3～4mm millboard small cushion block that length and width are respectively 10mm and is attached at a certain distance on the 0.5mm paper slip with latex and forms with the small cushion block curtain.During coil winding, between the line cake of certain number of turn, make it at the oil channel structure of vertical Surface forming hollow out on the unified pad of small cushion block curtain.During coiling, according in figure with dovetail pad and the colligation of shaping stay on winding mould, paper bag flat type copper wire the end of a thread is fixed on winding mould continuous winding temporary track cake, press drawing placement paper washer bar and vertical oil duct while being wound around, the online cake of the end of a thread this moment is inner; Break and oppositely arrange cake after winding interim cake, last the end of a thread is translated into the outside, and anti-cake is that coiling is completed, it is tied tight and colligation firm, the then positive cake of coiling, positive cake winding method is the same with anti-cake, but need to or not the row's of breaking cake around interim cake.Place the positive cake continuous coiling of dovetail cushion block anti-cake like this to finishing according to drawing between anti-cake and positive cake.Insulating end ring is placed at two, with coil clamp, coil is clamped, and removes mould.The utility model is applicable to the products such as 35KV power transformer.
Above disclosed is only preferred embodiment of the present utility model, certainly can not limit with this interest field of the utility model, and the equivalent variations of therefore doing according to the utility model claim still belongs to the scope that the utility model is contained.
Claims (1)
1. vertical oil duct continuous winding of power transformer is characterized in that: described coil is by insulating end ring, dovetail cushion block, paper washer bar, paper bag strip conductor, vertically oil duct, shaping stay consist of; With dovetail pad, the shaping stay horizontal oil duct as continuous winding, as vertical oil duct, the small cushion block curtain cuts into by 3～4mm millboard small cushion block that length and width are respectively 10mm and is attached at a certain distance on the 0.5mm paper slip with latex and forms with the small cushion block curtain.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220704215 CN202996545U (en) | 2012-12-18 | 2012-12-18 | Continuous coil for longitudinal oil ways of power transformers |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220704215 CN202996545U (en) | 2012-12-18 | 2012-12-18 | Continuous coil for longitudinal oil ways of power transformers |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202996545U true CN202996545U (en) | 2013-06-12 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220704215 Expired - Fee Related CN202996545U (en) | 2012-12-18 | 2012-12-18 | Continuous coil for longitudinal oil ways of power transformers |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202996545U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107026006A (en) * | 2017-05-12 | 2017-08-08 | 山东驰翔电气有限公司 | A kind of oil-immersed transformer high-voltage coils and its winding method |
| CN110310802A (en) * | 2019-08-09 | 2019-10-08 | 贵州司玛特智能电气有限公司 | Oil-immersed transformer coil |
| CN110335745A (en) * | 2019-08-09 | 2019-10-15 | 贵州司玛特智能电气有限公司 | Oil-immersed transformer cooling oil duct structure |
| CN112420350A (en) * | 2020-10-30 | 2021-02-26 | 国网江苏省电力有限公司电力科学研究院 | Winding structure and winding method for end part of high-voltage winding of phase-shifting transformer |
| CN112951585A (en) * | 2021-01-29 | 2021-06-11 | 保定天威集团特变电气有限公司 | Three-cake intertwining reverse unit manufacturing method, structure and transformer |
-
2012
- 2012-12-18 CN CN 201220704215 patent/CN202996545U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107026006A (en) * | 2017-05-12 | 2017-08-08 | 山东驰翔电气有限公司 | A kind of oil-immersed transformer high-voltage coils and its winding method |
| CN107026006B (en) * | 2017-05-12 | 2019-06-14 | 山东驰翔电气有限公司 | A kind of oil-immersed transformer high-voltage coils and its winding method |
| CN110310802A (en) * | 2019-08-09 | 2019-10-08 | 贵州司玛特智能电气有限公司 | Oil-immersed transformer coil |
| CN110335745A (en) * | 2019-08-09 | 2019-10-15 | 贵州司玛特智能电气有限公司 | Oil-immersed transformer cooling oil duct structure |
| CN112420350A (en) * | 2020-10-30 | 2021-02-26 | 国网江苏省电力有限公司电力科学研究院 | Winding structure and winding method for end part of high-voltage winding of phase-shifting transformer |
| CN112420350B (en) * | 2020-10-30 | 2021-08-27 | 国网江苏省电力有限公司电力科学研究院 | Winding structure and winding method for end part of high-voltage winding of phase-shifting transformer |
| CN112951585A (en) * | 2021-01-29 | 2021-06-11 | 保定天威集团特变电气有限公司 | Three-cake intertwining reverse unit manufacturing method, structure and transformer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20191101 Address after: 570125 No.8, mei'an Avenue, mei'an science and technology new town, Haikou national high tech Zone, Haikou City, Hainan Province Patentee after: Hainan Weite Electric Power Equipment Co., Ltd. Address before: 16 No. 570311 Hainan province Haikou City Xiuying Avenue Patentee before: Hainan Weite Electric Group Co., Ltd. |
|
| 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: 20130612 Termination date: 20201218 |