CN101834059A - Oil-immersed on-load capacity regulating transformer - Google Patents
Oil-immersed on-load capacity regulating transformer Download PDFInfo
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- CN101834059A CN101834059A CN 201010175017 CN201010175017A CN101834059A CN 101834059 A CN101834059 A CN 101834059A CN 201010175017 CN201010175017 CN 201010175017 CN 201010175017 A CN201010175017 A CN 201010175017A CN 101834059 A CN101834059 A CN 101834059A
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- transformer
- coil windings
- gummed paper
- spot gluing
- gluing paper
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Abstract
The invention relates to an oil-immersed on-load capacity regulating transformer which comprises a transformer shell, an iron core column and coil windings, wherein the iron core column is arranged inside the transformer shell, the coil windings are sleeved on the iron core column, all layers of coil windings are separated by spot gluing paper, one layer of spot gluing paper is arranged, diamond-shaped modified epoxy resin is coated on both surfaces of the spot gluing paper. The invention has the following characteristics: the thickness of the spot gluing paper is 0.06-1.00mm; the breakdown voltage of the spot gluing paper is not smaller than 4000V; the tensile strength of one surface of the spot gluing paper is not smaller than 120MPa, and the tensile strength of the other surface is not smaller than 200MPa; and the bond strength of both surfaces of the spot gluing paper is not smaller than 380KPa. In the invention, the insulation among the coil windings of the 315KVA/10000V transformer can be satisfied by arranging only one layer of the spot gluing paper with the specification among the coil windings, thereby effectively reducing the volume of the transformer, reducing the usage amount of metals and lowering the cost of the transformer.
Description
Technical field
The present invention relates to a kind of oil-immersed on-load capacitance-adjustable transformer.
Background technology
At present, the coil windings interlayer of transformer can be placed insulating material, increases distance by insulating material, guarantees the good of electric property.And the performance of insulating material has directly influenced the performance of transformer.In the prior art, insulating material commonly used has cardboard, insulating varnish plate, insulating paper etc., and according to the difference of its insulation property, the quantity that is placed on the coil windings interlayer is also different.Now the insulating paper with following specification is an example: insulating paper thickness is 0.07～0.09mm; Puncture voltage is not less than 800V; Hot strength is not less than 36MPa; Adhesion strength is not less than 380KPa, the insulating paper of specification uses at rated capacity 315KVA like this, on the transformer of rated voltage 10000V, need be provided with 4, as every paper thickness is 0.08mm, the thickness of the insulating paper that every interlayer increases be 0.32mm just, is 11 layers as the number of plies of coil windings, and the thickness that whole winding increases is 3.2mm just.The volume of transformer increases like this, and loss also increases thereupon, influences cost and energy-conservation.
Summary of the invention
The invention provides a kind of oil-immersed on-load capacitance-adjustable transformer.
For achieving the above object, the technical solution used in the present invention is:
A kind of oil-immersed on-load capacitance-adjustable transformer, comprise the transformer housing, be arranged on described transformer housing inside iron core column, be enclosed within on the described iron core column the several layers coil windings, pass through the some gummed paper between every layer of described coil windings separately, described some gummed paper is provided with 1 layer, the two-sided of described some gummed paper is coated with the form diamond checks modified epoxy, has following characteristic:
The thickness of described some gummed paper is 0.06～1.00mm; The puncture voltage of described some gummed paper is for being not less than 4000V; The hot strength that the hot strength of described some gummed paper one side is not less than 120MPa, another side is not less than 200MPa; The adhesion strength on described some gummed paper two sides is not less than 380KPa.
Preferably, described coil windings is provided with 11 layers.
Because technique scheme utilization, the present invention compared with prior art has following advantage: the present invention is by adopting the some gummed paper of above-mentioned specification, between coil windings, only one deck need be set, just can satisfy the insulation between the transformer coli winding of 315KVA/10000V, effectively reduced volume of transformer, reduce the use amount of metal, reduced the cost of transformer.
Description of drawings
Accompanying drawing 1 is the schematic diagram that is provided with of of the present invention some gummed paper.
Wherein: 1, some gummed paper; 2, coil windings.
Embodiment
Below in conjunction with drawings and Examples the present invention is further described:
A kind of oil-immersed on-load capacitance-adjustable transformer, comprise the transformer housing, be arranged on transformer housing inside iron core column, be enclosed within the coil windings on the iron core column.As shown in Figure 1,1 by some gummed paper 2 separately between every layer line circle winding, and some gummed paper 1 is provided with 1 layer, puts the two-sided of gummed paper 1 and is coated with the form diamond checks modified epoxy, has following characteristic:
The thickness of some gummed paper 1 is 0.06～1.00mm; Puncture voltage is for being not less than 4000V; The hot strength of some gummed paper 1 simultaneously is not less than 120MPa, and another side then is not less than 200MPa; The adhesion strength two sides of some gummed paper 1 all is not less than 380KPa.
Present embodiment is with rated capacity 315KVA, the transformer of rated voltage 10000V is an example, 1 of the some gummed paper that needs 0.08mm, the number of plies as coil windings is 11 layers, the thickness that whole winding increases is 0.8mm just, and 0.32mm has compared to existing technology reduced the overall size of coil greatly, the volume of transformer is reduced, reduce the transformer cost.
The point gummed paper of present embodiment also has good oil resistance in addition, and the energy long period of soaking is in the cold oil that oil becomes.
The foregoing description only is explanation technical conceive of the present invention and characteristics, and its purpose is to allow the personage who is familiar with this technology can understand content of the present invention and enforcement according to this, can not limit protection scope of the present invention with this.All equivalences that spirit is done according to the present invention change or modify, and all should be encompassed within protection scope of the present invention.
Claims (2)
1. oil-immersed on-load capacitance-adjustable transformer, comprise the transformer housing, be arranged on described transformer housing inside iron core column, be enclosed within the several layers coil windings on the described iron core column, it is characterized in that: pass through the some gummed paper between every layer of described coil windings separately, described some gummed paper is provided with 1 layer, the two-sided of described some gummed paper is coated with the form diamond checks modified epoxy, has following characteristic:
The thickness of described some gummed paper is 0.06～1.00mm; The puncture voltage of described some gummed paper is for being not less than 4000V; The hot strength that the hot strength of described some gummed paper one side is not less than 120MPa, another side is not less than 200MPa; The adhesion strength on described some gummed paper two sides is not less than 380KPa.
2. oil-immersed on-load capacitance-adjustable transformer according to claim 1 is characterized in that: described coil windings is provided with 11 layers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010175017 CN101834059A (en) | 2010-05-18 | 2010-05-18 | Oil-immersed on-load capacity regulating transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010175017 CN101834059A (en) | 2010-05-18 | 2010-05-18 | Oil-immersed on-load capacity regulating transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101834059A true CN101834059A (en) | 2010-09-15 |
Family
ID=42718097
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010175017 Pending CN101834059A (en) | 2010-05-18 | 2010-05-18 | Oil-immersed on-load capacity regulating transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101834059A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114021407A (en) * | 2021-11-05 | 2022-02-08 | 三峡大学 | Optimization method for reducing metal conductor material consumption of oil-immersed transformer winding |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09246066A (en) * | 1996-03-14 | 1997-09-19 | Toshiba Corp | Coil for induction machine |
| CN101424060A (en) * | 2008-08-13 | 2009-05-06 | 黄顺国 | Diamond dotted glue composite dielectric paper and preparation method thereof |
| CN201673783U (en) * | 2010-05-18 | 2010-12-15 | 苏州金山门变压器有限公司 | Oil-immersed on load capacity-regulated transformer |
-
2010
- 2010-05-18 CN CN 201010175017 patent/CN101834059A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09246066A (en) * | 1996-03-14 | 1997-09-19 | Toshiba Corp | Coil for induction machine |
| CN101424060A (en) * | 2008-08-13 | 2009-05-06 | 黄顺国 | Diamond dotted glue composite dielectric paper and preparation method thereof |
| CN201673783U (en) * | 2010-05-18 | 2010-12-15 | 苏州金山门变压器有限公司 | Oil-immersed on load capacity-regulated transformer |
Non-Patent Citations (1)
| Title |
|---|
| 《变压器》 20030630 王树森 变压器绝缘材料 49-51 1-2 第40卷, 第6期 2 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114021407A (en) * | 2021-11-05 | 2022-02-08 | 三峡大学 | Optimization method for reducing metal conductor material consumption of oil-immersed transformer winding |
| CN114021407B (en) * | 2021-11-05 | 2024-04-16 | 三峡大学 | Optimization method for reducing consumption of metal conductor material of winding of oil-immersed transformer |
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Application publication date: 20100915 |