CN204424055U - Resin casting dry-type transformer high-voltage coil structure - Google Patents
Resin casting dry-type transformer high-voltage coil structure Download PDFInfo
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- CN204424055U CN204424055U CN201520163272.3U CN201520163272U CN204424055U CN 204424055 U CN204424055 U CN 204424055U CN 201520163272 U CN201520163272 U CN 201520163272U CN 204424055 U CN204424055 U CN 204424055U
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Abstract
A kind of resin casting dry-type transformer high-voltage coil structure, comprise four sections of coils, end insulation is respectively equipped with at the two ends of every section of coil, section insulation is provided with between adjacent two sections of coils, first section of coil and rear coil are drawn respectively and starts and complete head, four taps drawn by interlude coil, start, complete head and tap be aluminum steel and with the main body copper wire welding of coil, start, complete head and wherein two taps and the main body copper wire welding end of coil lay respectively at last one deck of corresponding section coil, other two taps lay respectively at the layer second from the bottom of corresponding section coil with the main body copper wire welding end of coil.Beneficial effect is: owing to starting, complete head and tap be aluminum steel, and the coefficient of expansion of aluminum steel and epoxy resin is close, therefore winding protruding head place is not easy to crack, after using poured with epoxy resin curing molding, whole coil becomes a firm entirety, and mechanical strength is high, long service life, copper cash consumption can be reduced, reduce manufacturing cost.
Description
Technical field
The utility model relates to a kind of dry type transformer structure, particularly a kind of resin casting dry-type transformer high-voltage coil structure.
Background technology
At present, Cast Resin Dry-Type Transformer high-tension coil is lifted one's head and is adopted copper cash directly to weld a point wiring to lift one's head and form, the coefficient of expansion of epoxy resin and copper cash has a certain distance in process of production, in end winding and tap region longitudinally and laterally, due to leakage field effect and current effect, temperature can be caused to raise, and higher than the average temperature rising of coil, the cracking phenomena caused due to temperature field is herein more serious.
In addition, dry transformer high-tension coil conductor generally selects enamelled wire, glass fiber covered wire two kinds, and its process calls equipment is more, price, and the manufacturing cycle is long, due to the volatility of paint, has pollution to environment.For enamelled wire, paint film covers to be puted forth effort not allow to control, and easily cause pull-away, cause coil turn-to-turn short circuit, for glass fiber covered wire, transformer coil partial discharge affects the useful life of transformer.
Utility model content
Technical problem to be solved in the utility model to provide a kind of winding protruding head place not easy to crack, can save material, the resin casting dry-type transformer high-voltage coil structure reduced costs.
The technical solution of the utility model is as follows:
A kind of resin casting dry-type transformer high-voltage coil structure, comprise the four sections of coils be intertwined, end insulation is respectively equipped with at the two ends of every section of coil, section insulation is provided with between adjacent two sections of coils, first section of coil and rear coil are drawn respectively and starts and complete head, four taps drawn by interlude coil, its special character is: described in start, complete head and tap be aluminum steel and and weld between the main body copper cash of coil, describedly to start, complete head and wherein two taps and the main body copper wire welding end of coil lay respectively at last one deck of corresponding section coil, other two taps lay respectively at the layer second from the bottom of corresponding section coil with the main body copper wire welding end of coil.
As preferably, describedly to start, complete head and wherein two taps and the main body copper wire welding end of coil lay respectively at the n-th circle place of the last one deck of corresponding section coil, describedly to start, complete head and wherein two corresponding section coils of tap last layer of coil turn be m circle, n/m=70 ~ 75%.
As preferably, described other two taps and the main body copper wire welding end of coil lay respectively at the xth circle place of corresponding section coil layer second from the bottom, and the corresponding section coil of described other two taps layer coil turn second from the bottom is y circle, x/y=50 ~ 60%.
As preferably, described end insulation and section insulation are formed by glass tape coiling respectively.
As preferably, the main body copper cash of described coil is F level polyester film bag wire.
The beneficial effects of the utility model are: 1, owing to starting, complete head and tap be aluminum steel and and weld between the main body copper cash of coil, and the coefficient of expansion of aluminum steel and epoxy resin is close, therefore winding protruding head place is not easy to crack, after using poured with epoxy resin curing molding, whole coil becomes a firm entirety, mechanical strength is high, long service life.
2, owing to starting, complete head and tap be aluminum steel and and weld between the main body copper cash of coil, the main body copper cash consumption of coil can be reduced, reduce manufacturing cost.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is that schematic diagram arranged by coil of the present utility model.
In figure: coil 1, end insulation 2, section insulation 3, main body copper cash 4, starts 5, tap 6, complete 7.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail, can implements according to this with reference to description to make those skilled in the art.
As depicted in figs. 1 and 2, a kind of resin casting dry-type transformer high-voltage coil structure that the utility model relates to, comprise the four sections of coils 1 adopting main body copper cash 4 to be intertwined, end insulation 2 is respectively equipped with at the two ends of every section of coil 1, between adjacent two sections of coils 1, be provided with section insulation 3, described end insulation 2 and section insulation 3 are formed by glass tape coiling respectively.First section of coil 1 and rear coil 1 draw start 5 and complete 7 respectively, four taps 6 drawn by interlude coil 1, describedly start 5, complete 7 and tap 6 be aluminum steel and and weld between the main body copper cash 4 of coil 1, describedly to start, complete head and wherein two taps and the main body copper wire welding end of coil lay respectively at last one deck of corresponding section coil, other two taps lay respectively at the layer second from the bottom of corresponding section coil with the main body copper wire welding end of coil.
As shown in Figure 2, as preferred further, describedly to start, complete head and wherein two taps and the main body copper wire welding end of coil lay respectively at the n-th circle place of the last one deck of corresponding section coil, describedly to start, complete head and wherein two corresponding section coils of tap last layer of coil turn be m circle, n/m=70 ~ 75%.Described other two taps and the main body copper wire welding end of coil lay respectively at the xth circle place of corresponding section coil layer second from the bottom, and the corresponding section coil of described other two taps layer coil turn second from the bottom is y circle, x/y=50 ~ 60%.
As preferably, the main body copper cash 4 of described coil 1 is F level polyester film bag wire.
Although embodiment of the present utility model is open as above, but it is not restricted to listed in specification and execution mode utilization, it can be applied to various applicable field of the present utility model completely, for those skilled in the art, can easily realize other amendment, therefore do not deviating under the universal that claim and equivalency range limit, the utility model is not limited to specific details and illustrates here and the legend described.
Claims (5)
1. a resin casting dry-type transformer high-voltage coil structure, comprise the four sections of coils be intertwined, end insulation is respectively equipped with at the two ends of every section of coil, section insulation is provided with between adjacent two sections of coils, first section of coil and rear coil are drawn respectively and starts and complete head, four taps drawn by interlude coil, it is characterized in that: described in start, complete head and tap be aluminum steel and and weld between the main body copper cash of coil, describedly to start, complete head and wherein two taps and the main body copper wire welding end of coil lay respectively at last one deck of corresponding section coil, other two taps lay respectively at the layer second from the bottom of corresponding section coil with the main body copper wire welding end of coil.
2. resin casting dry-type transformer high-voltage coil structure according to claim 1, it is characterized in that: described in start, complete head and wherein two taps and the main body copper wire welding end of coil lay respectively at the n-th circle place of the last one deck of corresponding section coil, describedly to start, complete head and wherein two corresponding section coils of tap last layer of coil turn be m circle, n/m=70 ~ 75%.
3. resin casting dry-type transformer high-voltage coil structure according to claim 1 and 2, it is characterized in that: described other two taps and the main body copper wire welding end of coil lay respectively at the xth circle place of corresponding section coil layer second from the bottom, the corresponding section coil of described other two taps layer coil turn second from the bottom is y circle, x/y=50 ~ 60%.
4. resin casting dry-type transformer high-voltage coil structure according to claim 1, is characterized in that: described end insulation and section insulation are formed by glass tape coiling respectively.
5. resin casting dry-type transformer high-voltage coil structure according to claim 1, is characterized in that: the main body copper cash of described coil is F level polyester film bag wire.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520163272.3U CN204424055U (en) | 2015-03-21 | 2015-03-21 | Resin casting dry-type transformer high-voltage coil structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520163272.3U CN204424055U (en) | 2015-03-21 | 2015-03-21 | Resin casting dry-type transformer high-voltage coil structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204424055U true CN204424055U (en) | 2015-06-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520163272.3U Expired - Fee Related CN204424055U (en) | 2015-03-21 | 2015-03-21 | Resin casting dry-type transformer high-voltage coil structure |
Country Status (1)
| Country | Link |
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| CN (1) | CN204424055U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106024374A (en) * | 2016-05-19 | 2016-10-12 | 武汉振源电气股份有限公司 | Method for winding sectional cylindrical high-voltage coil of dry-type transformer |
| CN107256772A (en) * | 2017-07-29 | 2017-10-17 | 宜兴市兴益特种变压器有限公司 | It is a kind of to be used for the high-voltage coil structure of double division dry-type transformers |
-
2015
- 2015-03-21 CN CN201520163272.3U patent/CN204424055U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106024374A (en) * | 2016-05-19 | 2016-10-12 | 武汉振源电气股份有限公司 | Method for winding sectional cylindrical high-voltage coil of dry-type transformer |
| CN106024374B (en) * | 2016-05-19 | 2017-11-07 | 武汉振源电气股份有限公司 | A kind of dry-type transformer sectional circular cartridge type high-tension coil winding method |
| CN107256772A (en) * | 2017-07-29 | 2017-10-17 | 宜兴市兴益特种变压器有限公司 | It is a kind of to be used for the high-voltage coil structure of double division dry-type transformers |
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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: 20150624 Termination date: 20180321 |