CN101901686B - Method for improving short-circuit resistance and compression and impact resistance of transformer coil - Google Patents
Method for improving short-circuit resistance and compression and impact resistance of transformer coil Download PDFInfo
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- CN101901686B CN101901686B CN200910051907A CN200910051907A CN101901686B CN 101901686 B CN101901686 B CN 101901686B CN 200910051907 A CN200910051907 A CN 200910051907A CN 200910051907 A CN200910051907 A CN 200910051907A CN 101901686 B CN101901686 B CN 101901686B
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- coil
- transformer coil
- impact resistance
- crimped paper
- insulation
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Abstract
The invention relates to a method for improving short-circuit resistance and compression and impact resistance of a transformer coil, comprising the step of additionally arranging insulating crepe paper on an insulating paper board which is wrapped the iron core of the transformer coil. Compared with the prior art, the invention has simple method, low cost and capability of improving the short-circuit resistance and compression and impact resistance of the transformer coil and the like.
Description
Technical field
The present invention relates to a kind of transformer, especially relate to a kind of method that improves amorphous transformer coil Short Circuit withstand and impact resistance.
Background technology
In the transformer production process, generally take way at present, realize the insulation between inner iron core of transformer and the coil with insulating board parcel iron core.The defective of this production technology is because insulating board itself has certain rigidity and fragility, so with insulating board after the winding former bending, insulating board can form micro crack at bending part.And this micro crack not only can reduce the dielectric strength of insulating barrier between coil and iron core, and can reduce the Short Circuit withstand and the impulse withstand level of coil.Obviously of this sort micro crack problem is that the traditional transformer production technology is difficult to avoid or solve.
In addition; Because it is very high to constitute the hardness of non-crystaline amorphous metal sheet material of amorphous iron core, and single-sheet thickness is merely 0.03 millimeter, so no matter be to produce assembling; Still in the use of amorphous transformer, all can produce a certain amount of amorphous alloy material fragment inevitably.If do not control, then when transformer moves, the amorphous fragment that circulates with transformer insulating radiation oil just might cause problem such as short circuit and burn out transformer.The existence of obvious inner amorphous alloy material fragment all has considerable influence to the performance and the reliability of amorphous transformer itself.But the production technology of amorphous transformer does not solve similar problem as yet fully at present.
Summary of the invention
The object of the invention is exactly that a kind of method is simple, cost the is low raising transformer coil Short Circuit withstand and the method for impact resistance are provided in order to overcome the defective that above-mentioned prior art exists.
The object of the invention can be realized through following technical scheme: a kind of method that improves transformer coil Short Circuit withstand and impact resistance is characterized in that this method is on the insulating board of parcel transformer coil iron core, to set up insulation crimped paper.
Described insulation crimped paper is arranged on the bending part of insulating board.
Described insulation crimped paper is arranged on the place, four angles of insulating board.
The width of described insulation crimped paper is than the wide 40-80mm of coil axial width, thick 0.6-1.0mm.
Compared with prior art, the present invention has the following advantages:
(1) because insulation crimped paper has good insulation performance property, pliability and retractility; So the bending part of insulating board is carried out the insulation reinforcement of part with certain thickness insulation crimped paper; Just not only can offset between coil that the insulating board micro crack brought and iron core degradation problem under the insulating barrier dielectric strength to a great extent, can also improve the Short Circuit withstand and the impulse withstand level of coil.
(2) the insulation crimped paper that increases at place, four angles of insulation coaming plate; Every side all than coil axes to wide about 40 millimeters; In assembling process, it is laminated to coil direction, again with the colligation mutually of coil external insulation ply of board, the crimped paper of just can realizing insulating fixing also covers the side insulation end of coil; Thereby prevent that effectively the non-crystaline amorphous metal fragment from getting into coil inside and causing short circuit, and further improved coil Short Circuit withstand and withstand voltage impact-level.
Description of drawings
Fig. 1 is provided with the insulate structural representation of transformer coil of crimped paper of the present invention.
Among the figure: the 1-crimped paper that insulate, 2-insulating board, 3-coil.
Embodiment
Below in conjunction with specific embodiment the present invention is elaborated.
Embodiment 1
As shown in Figure 1, a kind of method that improves transformer coil Short Circuit withstand and impact resistance,, this method may further comprise the steps:
Step 1 is purchased wideer about 80 millimeters than coil axial width, the insulation crimped paper capacity that thickness is 0.8 millimeter;
Step 4 is fixing with four sections insulation crimped papers 1 of good attachment with glass paper adhesive tape; And with coil external insulation cardboard 2 layers colligation is firm mutually; Just can realize insulating the fixing of crimped paper and cover the side insulation end of coil; Thereby prevent that effectively the non-crystaline amorphous metal fragment from getting into coil inside and causing short circuit, and further improved coil Short Circuit withstand and withstand voltage impact-level.
Above step is accomplished, and can begin to carry out traditional wire winding.
A kind of method that improves transformer coil Short Circuit withstand and impact resistance, this method are on the insulating board of parcel transformer coil iron core, to set up insulation crimped paper, and insulation crimped paper is arranged on the bending part of insulating board.The width of insulation crimped paper is than the wide 60mm of coil axial width; Thick 0.6mm; Insulation crimped paper carries out local insulation reinforcement to the bending part of insulating board; Just not only can offset between coil that the insulating board micro crack brought and iron core degradation problem under the insulating barrier dielectric strength to a great extent, can also improve the Short Circuit withstand and the impulse withstand level of coil.
A kind of method that improves transformer coil Short Circuit withstand and impact resistance, this method are on the insulating board of parcel transformer coil iron core, to set up insulation crimped paper, and insulation crimped paper is arranged on the place, four angles of insulating board.The width of insulation crimped paper is than the wide 40mm of coil axial width; Thick 1.0mm, every side all than coil axes to wide about 40 millimeters, in assembling process, it is laminated to coil direction; Again with the colligation mutually of coil external insulation ply of board; Just can realize the side insulation end of fixing and cover coil of crimped paper that insulate, thereby prevent that effectively the non-crystaline amorphous metal fragment from getting into coil inside and causing short circuit, and further improve coil Short Circuit withstand and withstand voltage impact-level.
Claims (2)
1. a method that improves transformer coil Short Circuit withstand and impact resistance is characterized in that, this method is on the insulating board of parcel transformer coil iron core, to set up insulation crimped paper;
Described insulation crimped paper is arranged on the bending part or the place, four angles of insulating board.
2. a kind of method that improves transformer coil Short Circuit withstand and impact resistance according to claim 1 is characterized in that the width of described insulation crimped paper is than the wide 40-80mm of coil axial width, thick 0.6-1.0mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910051907A CN101901686B (en) | 2009-05-25 | 2009-05-25 | Method for improving short-circuit resistance and compression and impact resistance of transformer coil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910051907A CN101901686B (en) | 2009-05-25 | 2009-05-25 | Method for improving short-circuit resistance and compression and impact resistance of transformer coil |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101901686A CN101901686A (en) | 2010-12-01 |
| CN101901686B true CN101901686B (en) | 2012-09-05 |
Family
ID=43227148
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910051907A Expired - Fee Related CN101901686B (en) | 2009-05-25 | 2009-05-25 | Method for improving short-circuit resistance and compression and impact resistance of transformer coil |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101901686B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ITUB20156089A1 (en) * | 2015-12-02 | 2017-06-02 | Itacoil S R L | Insulating tape for electrical components |
| CN106683879B (en) * | 2017-03-17 | 2018-08-31 | 保定天威保变电气股份有限公司 | A kind of processing technology of shell type transformer insulating barrier |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2054196U (en) * | 1989-09-21 | 1990-03-07 | 沈阳变压器厂 | Plate structure without static electricity at the end of transformer high-voltage winding |
| CN2330047Y (en) * | 1998-02-09 | 1999-07-21 | 黄国钦 | Iron core insulation structure |
| CN101226819A (en) * | 2007-11-26 | 2008-07-23 | 青岛青波变压器股份有限公司 | Method for coiling iron-core transformer winding using cuprum aluminum composite conductor and winding thereof |
-
2009
- 2009-05-25 CN CN200910051907A patent/CN101901686B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2054196U (en) * | 1989-09-21 | 1990-03-07 | 沈阳变压器厂 | Plate structure without static electricity at the end of transformer high-voltage winding |
| CN2330047Y (en) * | 1998-02-09 | 1999-07-21 | 黄国钦 | Iron core insulation structure |
| CN101226819A (en) * | 2007-11-26 | 2008-07-23 | 青岛青波变压器股份有限公司 | Method for coiling iron-core transformer winding using cuprum aluminum composite conductor and winding thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101901686A (en) | 2010-12-01 |
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| PB01 | Publication | ||
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| SE01 | Entry into force of request for substantive examination | ||
| 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: 20120905 Termination date: 20210525 |