CN202025610U - Epoxy resin-insulated dry type transformer - Google Patents
Epoxy resin-insulated dry type transformer Download PDFInfo
- Publication number
- CN202025610U CN202025610U CN2011200719948U CN201120071994U CN202025610U CN 202025610 U CN202025610 U CN 202025610U CN 2011200719948 U CN2011200719948 U CN 2011200719948U CN 201120071994 U CN201120071994 U CN 201120071994U CN 202025610 U CN202025610 U CN 202025610U
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- China
- Prior art keywords
- epoxy resin
- transformer
- dry type
- type transformer
- mesh layer
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- Expired - Fee Related
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Abstract
An epoxy resin-insulated dry type transformer relates to a transformer. The insulating property of the epoxy resin-insulated dry type transformer is enhanced, and the service life of the epoxy resin-insulated dry type transformer is prolonged. The epoxy resin-insulated dry type transformer is provided with a core and a coil, a DMD (Dacron Mylar Dacron) polyester film polyester fiber non-woven fabric flexible composite foil layer and a mesh layer are arranged from the inside to the outside on the core, the coil is wound on the mesh layer, and epoxy resin is filled up in the mesh layer. The characteristics of the DMD polyester film polyester fiber non-woven fabric flexible composite foil layer and the mesh layer, such as high temperature resistance and good insulating property, are sufficiently utilized, so that the insulating property of the transformer is enhanced. Since the DMD polyester film polyester fiber non-woven fabric flexible composite foil layer is wrapped by the mesh layer, the distance between the coil and the core is increased. Since the epoxy resin is filled in the mesh layer, the quantity of the poured epoxy resin is greatly increased, and therefore the insulativity is enhanced. The cost is low, the insulating effect is good, and the service life of the transformer is prolonged.
Description
Technical field
The utility model relates to a kind of transformer, especially relates to a kind of epoxy resins insulation dry-type transformer.
Background technology
Insulation property are one of vital performances of transformer.In transformer insulated structure, what understand the insulation weakness of some part, and it can at first discharge under effect of electric field, puncture and do not form whole insulation penetrability immediately, and it may occur in the surperficial or inner of insulator, i.e. partial discharge.Yet, the destruction of electric insulation or local ageing, majority is from partial discharge, and its harmfulness outstanding behaviours reduces rapidly at insulation life, finally influences safe operation.
Summary of the invention
The purpose of this utility model is to provide a kind of insulation characterisitic of transformer, epoxy resins insulation dry-type transformer that prolongs the useful life of transformer of improving.
The utility model is provided with iron core and coil, is provided with soft composite insulating foil layer of DMD polyester film and polyester fibre non woven fabric and grid layer of cloth on iron core from the inside to the outside, and coil is wrapped on the grid layer of cloth, fills with epoxy resin in the grid layer of cloth.
Soft composite insulating foil of described DMD polyester film and polyester fibre non woven fabric and grid cloth all can be buied on market.
Compare with existing transformer, the utility model is owing to adopted first insulating barrier of the soft composite insulating foil of DMD polyester film and polyester fibre non woven fabric as iron core and coil, therefore make full use of that it is high temperature resistant, possess characteristics such as good insulation performance, to improve the insulation characterisitic of transformer.Secondly, owing to, therefore increased the distance of coil and iron core at the soft composite insulating foil layer of DMD polyester film and polyester fibre non woven fabric outer wrapping grid layer of cloth.Owing at the middle filling of grid layer of cloth epoxy resin, therefore improved the fluence of watering of epoxy resin greatly, improved insulating properties.In addition, because soft composite insulating foil of described DMD polyester film and polyester fibre non woven fabric and grid cloth all can buy on market, so the utility model is with low cost, and insulation effect is good, has improved the useful life of transformer.
Description of drawings
Fig. 1 is that the structure of the utility model embodiment is formed schematic diagram.
Fig. 2 is the A-A cutaway view of Fig. 1.
Fig. 3 is that the structure of the grid layer of cloth of the utility model embodiment is formed schematic diagram.
In Fig. 1～3, respectively be labeled as: 1 iron core, the soft composite insulating foil layer of 2DMD polyester film and polyester fibre non woven fabric, 3 grid layer of cloths, 4 coils.
Embodiment
The utility model is described in further detail by the following examples and in conjunction with the accompanying drawings.
Shown in Fig. 1～3, the utility model embodiment is provided with iron core 1, the soft composite insulating foil layer 2 of DMD polyester film and polyester fibre non woven fabric, grid layer of cloth 3 and coil 4; Behind the soft composite insulating foil layer 2 of parcel DMD polyester film and polyester fibre non woven fabric on the iron core 1, the wound web scrim layer 3 again, coil 4 on the grid layer of cloth 3 more at last; Treat to carry out again after above-mentioned operation is finished the cast of epoxy resin.
Mesh size in the described grid layer of cloth is 4mm * 4mm.
Soft composite insulating foil of described DMD polyester film and polyester fibre non woven fabric and grid cloth all can be buied on market.
Claims (1)
1. epoxy resins insulation dry-type transformer, it is characterized in that being provided with iron core and coil, be provided with soft composite insulating foil layer of DMD polyester film and polyester fibre non woven fabric and grid layer of cloth on iron core from the inside to the outside, coil is wrapped on the grid layer of cloth, fills with epoxy resin in the grid layer of cloth.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200719948U CN202025610U (en) | 2011-03-17 | 2011-03-17 | Epoxy resin-insulated dry type transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200719948U CN202025610U (en) | 2011-03-17 | 2011-03-17 | Epoxy resin-insulated dry type transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202025610U true CN202025610U (en) | 2011-11-02 |
Family
ID=44850554
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200719948U Expired - Fee Related CN202025610U (en) | 2011-03-17 | 2011-03-17 | Epoxy resin-insulated dry type transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202025610U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105047383A (en) * | 2015-08-20 | 2015-11-11 | 王永法 | Anti-short circuit oil-immersed transformer body and fabrication method thereof |
-
2011
- 2011-03-17 CN CN2011200719948U patent/CN202025610U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105047383A (en) * | 2015-08-20 | 2015-11-11 | 王永法 | Anti-short circuit oil-immersed transformer body and fabrication method thereof |
| CN105047383B (en) * | 2015-08-20 | 2018-05-08 | 王永法 | A kind of resistance to shorting oil-immersed transformer device body and preparation method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| 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: 20111102 Termination date: 20160317 |