CN102664092A - Stepped winding structure used for transformers - Google Patents
Stepped winding structure used for transformers Download PDFInfo
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- CN102664092A CN102664092A CN2012101647113A CN201210164711A CN102664092A CN 102664092 A CN102664092 A CN 102664092A CN 2012101647113 A CN2012101647113 A CN 2012101647113A CN 201210164711 A CN201210164711 A CN 201210164711A CN 102664092 A CN102664092 A CN 102664092A
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- high pressure
- transformers
- transformer
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Abstract
The invention discloses a stepped winding structure used for transformers. The stepped winding structure used for the transformers comprises a high-voltage winding, a low-voltage winding and interlayer insulation, wherein the high-voltage winding is of a stepped structure, the interlayer insulation is arranged between each two layers of the high-voltage winding and made of poly dilute imine membranes added with NOMEX paper, and poly dilute imine membranes roll up at the two ends to form soft angle rings. The stepped winding structure is used for high-frequency withstand voltage test transformers, the windings are good in insulation performance, and requirements for the high-frequency withstand voltage test transformers are met.
Description
Technical field
The invention belongs to transformer manufacture technology, relate to the structural design of Transformer Winding, specifically a kind of stairstepping winding construction that is applicable to high frequency withstand voltage test transformer.
Background technology:
Because high-frequency power transformer output progressively enlarges; Relevant criterion to such transformer is not also put into effect; Thereby, such transformer is carried out necessary delivery test with reference to the test of other kind transformer, become very urgent thing to replace the fictitious load operation.The present domestic withstand voltage transformer test equipment of special high frequency that also do not have.
Summary of the invention
To the particularity of high frequency withstand voltage test transformer, the purpose of this invention is to provide a kind of stairstepping winding construction that is used for transformer, this structure is used for high frequency withstand voltage test transformer, and the good insulation preformance of winding has satisfied the requirement of high frequency withstand voltage test transformer.
The objective of the invention is to realize through following technical scheme:
A kind of stairstepping winding construction that is used for transformer, it is characterized in that: this structure comprises high pressure winding, low pressure winding and layer insulation, oil duct is arranged between high pressure winding and the low pressure winding; Said high pressure winding is a ladder-type structure, and layer insulation is arranged on the interlayer of high pressure winding; Said layer insulation adds NOMEX paper and processes by gathering rare imines film, and flange forms soft corner-ring in the end to gather rare imines film.
Among the present invention, form a ladder of ladder-type structure after 3～4 layers of the high pressure winding techniques.
Because the high pressure winding output voltage of high frequency withstand voltage test transformer is very high, determines that thus the voltage between layers of winding is also very high, operate in 20～40kHz frequency state again simultaneously, withstand voltage and the creepage problem interlayer end are crucial between winding layers.Thereby the insulation property of winding and conventional transformer differ widely, and designs by conventional transformer high pressure winding construction and do not reach the expection requirement.The present invention has designed step-like high pressure winding, adds NOMEX paper and replaces common cable paper to do layer insulation with gathering rare imines film.After 3～4 layers of every coilings, as a ladder, the wire turn of coiling is afterwards inwardly being stepped back about 10mm on the axis of winding.Flange forms soft corner-ring to layer insulation rare imines film that gathers wherein in the end.The coiling of drawing analogous conclusions finishes the high pressure winding.
The present invention has increased the creepage distance of winding overhang interlayer, has significantly improved the insulation property of winding, has satisfied equipment requirements.
Description of drawings
Fig. 1 is a structural representation of the present invention.
Fig. 2 is a plan structure sketch map of the present invention.
Embodiment
A kind of stairstepping winding construction that is used for transformer of the present invention is seen Fig. 1 and Fig. 2, and this structure comprises high pressure winding 1, low pressure winding 2 and layer insulation 4, between high pressure winding 1 and low pressure winding 2, is provided with oil duct 3.High pressure winding 1 is a ladder-type structure, and layer insulation 4 is arranged on the interlayer of high pressure winding; Layer insulation 4 adds NOMEX paper and processes by gathering rare imines film, and after 3～4 layers of every coilings, as a ladder, the wire turn of coiling is afterwards inwardly being stepped back about 10mm on the axis of winding.Flange forms soft corner-ring 5 to rare imines film that gathers in the layer insulation 4 in the end.The coiling of drawing analogous conclusions finishes the high pressure winding.
The present invention adopts step-like high pressure winding, adds NOMEX paper and replaces common cable paper to do layer insulation with gathering rare imines film, has increased the creepage distance of winding overhang interlayer, has significantly improved the insulation property of winding, has satisfied equipment requirements.
Claims (2)
1. stairstepping winding construction that is used for transformer, it is characterized in that: this structure comprises high pressure winding (1), low pressure winding (2) and layer insulation (4), between high pressure winding (1) and low pressure winding (2), is provided with oil duct (3); Said high pressure winding (1) is a ladder-type structure, and layer insulation (4) is arranged on the interlayer of high pressure winding (1); Said layer insulation (4) adds NOMEX paper and processes by gathering rare imines film, and flange forms soft corner-ring (5) in the end to gather rare imines film.
2. the stairstepping winding construction that is used for transformer according to claim 1 is characterized in that: a ladder that forms ladder-type structure after 3～4 layers of high pressure winding (1) coilings.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101647113A CN102664092A (en) | 2012-05-25 | 2012-05-25 | Stepped winding structure used for transformers |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101647113A CN102664092A (en) | 2012-05-25 | 2012-05-25 | Stepped winding structure used for transformers |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102664092A true CN102664092A (en) | 2012-09-12 |
Family
ID=46773555
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012101647113A Pending CN102664092A (en) | 2012-05-25 | 2012-05-25 | Stepped winding structure used for transformers |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102664092A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09232166A (en) * | 1996-02-28 | 1997-09-05 | Murata Mfg Co Ltd | Transformer |
| CN1794381A (en) * | 2005-12-30 | 2006-06-28 | 中国科学院电工研究所 | Evaporation cooling transformer |
| CN2864949Y (en) * | 2005-12-13 | 2007-01-31 | 熊江咏 | Voltage mutual-inductor |
| CN201051439Y (en) * | 2007-05-14 | 2008-04-23 | 沈阳昊诚电气有限公司 | Epoxy casting dry transformer |
| CN201051440Y (en) * | 2007-06-05 | 2008-04-23 | 西安电力机械制造公司 | A layered loop |
| CN102376430A (en) * | 2011-11-08 | 2012-03-14 | 中国西电电气股份有限公司 | High-volage coil of voltage mutual inductor and production method thereof |
-
2012
- 2012-05-25 CN CN2012101647113A patent/CN102664092A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09232166A (en) * | 1996-02-28 | 1997-09-05 | Murata Mfg Co Ltd | Transformer |
| CN2864949Y (en) * | 2005-12-13 | 2007-01-31 | 熊江咏 | Voltage mutual-inductor |
| CN1794381A (en) * | 2005-12-30 | 2006-06-28 | 中国科学院电工研究所 | Evaporation cooling transformer |
| CN201051439Y (en) * | 2007-05-14 | 2008-04-23 | 沈阳昊诚电气有限公司 | Epoxy casting dry transformer |
| CN201051440Y (en) * | 2007-06-05 | 2008-04-23 | 西安电力机械制造公司 | A layered loop |
| CN102376430A (en) * | 2011-11-08 | 2012-03-14 | 中国西电电气股份有限公司 | High-volage coil of voltage mutual inductor and production method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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 |
Application publication date: 20120912 |