CN101937759A - Structure of high-voltage coil for dry-type transformer - Google Patents
Structure of high-voltage coil for dry-type transformer Download PDFInfo
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- CN101937759A CN101937759A CN 201010279139 CN201010279139A CN101937759A CN 101937759 A CN101937759 A CN 101937759A CN 201010279139 CN201010279139 CN 201010279139 CN 201010279139 A CN201010279139 A CN 201010279139A CN 101937759 A CN101937759 A CN 101937759A
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- dry
- type transformer
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- tension coil
- pressure
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Abstract
The invention relates to the structure of a high-voltage coil, in particular to the structure of a high-voltage coil for a 10kV dry-type transformer, belonging to the technical field of transformers. According to the technical scheme provided by the invention, enameled wires are wound round the high-voltage coil to form an eight-section or twelve-section partial-pressure structure comprising a plurality of partial-pressure layers, wherein an insulation layer is arranged between each two adjacent partial-pressure layers. By using the eight-section or twelve-section partial-pressure structure, the invention can reduce the bearing pressure of the partial-pressure structure; and by using the latticed insulation layer made of glass fiber between the partial-pressure layers in the partial-pressure structure, the invention can reduce the partial discharge of the product, reduce the height of the coil and facilitate the technological operations at the same time.
Description
Technical field
The present invention relates to a kind of high-tension coil structure, especially a kind of 10kV dry-type transformer high-tension coil structure belongs to the technical field of transformer.
Background technology
In prior art, the 10kV high-tension coil often adopts glass fiber covered wire, and coil design is that four cylindrical section formulas are divided laminated structure, and the dividing potential drop number of plies is seven, nine, 11 or 13 in every section branch laminated structure; The intersegmental voltage of adjacent minute laminated structure is about 2625V; Adjacent dividing potential drop voltage between layers is about 400V～800V; Adjacent dividing potential drop layer insulation adopts the soft composite insulating foil of 0.2mmDMD(polyester film and polyester fibre non woven fabric).The structure of described high-tension coil exists coil height bigger, and interlayer, intersegmental voltage are higher, and shortcomings such as bigger than normal are put in product office.
Summary of the invention
The objective of the invention is to overcome the deficiencies in the prior art, a kind of 10kV dry-type transformer high-tension coil structure is provided, it reduces between gas producing formation, intersegmental voltage, reduces product office high-volume, reduces coil height simultaneously, and technological operation is convenient.
According to technical scheme provided by the invention, a kind of 10kV dry-type transformer high-tension coil structure adopts enamelled wire to turn to eight sections or 12 sections branch laminated structures, and laminated structure comprised the several dividing layer in described minute, and described adjacent dividing potential drop interlayer is provided with insulating barrier.
Comprise nine, 11 or 13 layers of dividing potential drop layer in the described minute laminated structure.Described insulating barrier adopts glass fibre to make, and is fenestral fabric.The thickness of described insulating barrier is 0.38 ~ 0.42mm.
The interstructural voltage of described adjacent dividing potential drop is 1315V.The voltage of the described minute interior adjacent dividing potential drop interlayer of laminated structure is 200 ~ 300V.
Advantage of the present invention: high-tension coil adopts eight sections or 12 sections branch laminated structures, can reduce the pressure-bearing of branch laminated structure, the insulating barrier that divides the dividing potential drop interlayer in the laminated structure to adopt glass fibre to make, it is latticed that insulating barrier is, can reduce product the office high-volume, simultaneously can reduce coil height, technological operation is convenient.
Description of drawings
Fig. 1 is a structural representation of the present invention.
Fig. 2 is the coiling schematic diagram of dividing potential drop layer among the present invention.
Embodiment
The invention will be further described below in conjunction with concrete drawings and Examples.
As depicted in figs. 1 and 2: the present invention includes enamelled wire 1, insulating barrier 2, divide laminated structure 3 and dividing potential drop layer 4.
As depicted in figs. 1 and 2: described high-tension coil adopts enamelled wire 1 coiling, and forms the branch laminated structure 3 of eight sections or 12 sections, and wherein to adopt eight sections branch laminated structures 3 be the winding structure of less expensive to high-tension coil.Laminated structure 3 was cylinder mode in described minute, comprised several dividing layer 4 in the described minute laminated structure 3; For the ease of coiling, divide in the laminated structure 3 and comprise odd number dividing potential drop layer 4, described dividing potential drop layer 4 can be nine, 11 or ten three-deckers.Divide laminated structure 3 interior 4 adjacent on dividing potential drop layers to be provided with insulating barrier 2, described insulating barrier 2 is latticed, adopts glass fibre to make; The thickness of insulating barrier 2 is 0.38 ~ 0.42mm; The general insulating barrier 2 that adopts 0.4mm.The dividing potential drop that adjacent minute laminated structure of described high-tension coil is 3 is 1315V, and dividing the voltage of 4 on laminated structure 3 interior adjacent dividing potential drop layers is 200 ~ 300V.In addition, consider the technological operation requirement, by every circle coil shown in Figure 2 transition that all replaces, the transformer coil whole height can not increase like this.Bigger than normal to size for fear of the transformer high-voltage coil width of cloth, coil adopts fractional turns to arrange.After described high-tension coil coiling is good, adopt epoxy resin to pour into a mould, adopt latticed insulating barrier 2, can reduce the anti-amount of office.
High-tension coil of the present invention adopts eight sections or 12 sections branch laminated structures 3, can reduce the pressure-bearing of branch laminated structure 3, divide the dividing potential drop layer in the laminated structure 34 insulating barrier 2 that adopts glass fibre to make, insulating barrier 2 is latticed, can reduce product the office high-volume, simultaneously can reduce coil height, technological operation is convenient.
Claims (6)
1. dry-type transformer high-tension coil structure, it is characterized in that: adopt enamelled wire (1) to turn to eight sections or 12 sections branch laminated structures (3), described minute laminated structure (3) comprise several dividing layer (4), be provided with insulating barrier (2) between described adjacent dividing potential drop layer (4).
2. dry-type transformer high-tension coil structure according to claim 1 is characterized in that: comprise nine, 11 or 13 layers of dividing potential drop layer (4) in described minute laminated structure (3).
3. dry-type transformer high-tension coil structure according to claim 1 is characterized in that: described insulating barrier (2) adopts glass fibre to make, and is fenestral fabric.
4. dry-type transformer high-tension coil structure according to claim 1 is characterized in that: the thickness of described insulating barrier (2) is 0.38 ~ 0.42mm.
5. dry-type transformer high-tension coil structure according to claim 1 is characterized in that: the voltage between described adjacent minute laminated structure (3) is 1315V.
6. dry-type transformer high-tension coil structure according to claim 1 is characterized in that: the voltage in described minute laminated structure (3) between adjacent dividing potential drop layer (4) is 200 ~ 300V.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010279139 CN101937759A (en) | 2010-09-13 | 2010-09-13 | Structure of high-voltage coil for dry-type transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010279139 CN101937759A (en) | 2010-09-13 | 2010-09-13 | Structure of high-voltage coil for dry-type transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101937759A true CN101937759A (en) | 2011-01-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010279139 Pending CN101937759A (en) | 2010-09-13 | 2010-09-13 | Structure of high-voltage coil for dry-type transformer |
Country Status (1)
| Country | Link |
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| CN (1) | CN101937759A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102315002A (en) * | 2011-05-19 | 2012-01-11 | 正泰电气股份有限公司 | High-tension coil of high-capacity 35KV dry-type transformer |
| CN102360837A (en) * | 2011-10-10 | 2012-02-22 | 正泰电气股份有限公司 | High-tension coil of dry-type transformer for photovoltaic power generation |
| CN103500634A (en) * | 2013-10-28 | 2014-01-08 | 三变科技股份有限公司 | 220KV on-load voltage regulation single-phase testing transformer |
| CN112466633A (en) * | 2020-11-10 | 2021-03-09 | 佛山市欧立电子有限公司 | Foil wound transformer |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4326181A (en) * | 1977-11-18 | 1982-04-20 | General Electric Company | High voltage winding for dry type transformer |
| CN1222746A (en) * | 1998-01-09 | 1999-07-14 | 魏胜璋 | Transformer with thin insulating layer and deposited filler resin and its making method |
| CN1274165A (en) * | 1999-05-12 | 2000-11-22 | 魏胜璋 | High-voltage winding with resin insulation for transformer and its manufacture method |
| CN201142263Y (en) * | 2007-11-27 | 2008-10-29 | 镇江天力变压器有限公司 | Novel high-voltage packaging type winding dry-type transformer |
| CN101308721A (en) * | 2007-05-14 | 2008-11-19 | 沈阳昊诚电气有限公司 | Epoxy cast dry transformer |
| CN201532843U (en) * | 2009-07-29 | 2010-07-21 | 福州天宇电气股份有限公司 | Transformer with segmental structure |
-
2010
- 2010-09-13 CN CN 201010279139 patent/CN101937759A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4326181A (en) * | 1977-11-18 | 1982-04-20 | General Electric Company | High voltage winding for dry type transformer |
| CN1222746A (en) * | 1998-01-09 | 1999-07-14 | 魏胜璋 | Transformer with thin insulating layer and deposited filler resin and its making method |
| CN1274165A (en) * | 1999-05-12 | 2000-11-22 | 魏胜璋 | High-voltage winding with resin insulation for transformer and its manufacture method |
| CN101308721A (en) * | 2007-05-14 | 2008-11-19 | 沈阳昊诚电气有限公司 | Epoxy cast dry transformer |
| CN201142263Y (en) * | 2007-11-27 | 2008-10-29 | 镇江天力变压器有限公司 | Novel high-voltage packaging type winding dry-type transformer |
| CN201532843U (en) * | 2009-07-29 | 2010-07-21 | 福州天宇电气股份有限公司 | Transformer with segmental structure |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102315002A (en) * | 2011-05-19 | 2012-01-11 | 正泰电气股份有限公司 | High-tension coil of high-capacity 35KV dry-type transformer |
| CN102360837A (en) * | 2011-10-10 | 2012-02-22 | 正泰电气股份有限公司 | High-tension coil of dry-type transformer for photovoltaic power generation |
| CN103500634A (en) * | 2013-10-28 | 2014-01-08 | 三变科技股份有限公司 | 220KV on-load voltage regulation single-phase testing transformer |
| CN112466633A (en) * | 2020-11-10 | 2021-03-09 | 佛山市欧立电子有限公司 | Foil wound transformer |
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Open date: 20110105 |