CN204407148U - A kind of two disc coil structure - Google Patents
A kind of two disc coil structure Download PDFInfo
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- CN204407148U CN204407148U CN201420388719.2U CN201420388719U CN204407148U CN 204407148 U CN204407148 U CN 204407148U CN 201420388719 U CN201420388719 U CN 201420388719U CN 204407148 U CN204407148 U CN 204407148U
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Abstract
The utility model relates to a kind of two disc coil structure, is made up of, exports after each pair of cake parallel connection multiple pairs of cakes; The two cake of head and the tail two is made up of insulating paper; The two cake of described head and the tail two respectively contacts three oil ducts, and the horizontal tail cushion block of three oil ducts of contact is epoxy resin bonded fiber.Insulating paper described in the utility model is the beautiful NOMAX paper of Du Pont's promise of H level; Described horizontal tail cushion block is the epoxy resin bonded fiber of F level.The electricity that the utility model need not reduce head and the tail two cake coils is close, only needs slightly to adjust to insulation, just can meet the normal operation of transformer.
Description
Technical field
The utility model relates to transformer technology field, the structure of the two disc coil of especially a kind of low pressure.
Background technology
In oil-filled transformer, (rectification becomes, electric furnace becomes), because low-tension current is very large, reach the training of a little Wan An, conventional helical formula coil can not be suitable for, therefore two disc coil can only be adopted, multiple pairs of cakes carry out parallel connection, reach shunting effect, but in transformer actual moving process, due to the effect of leakage flux, the two cake actual motion electric current of coil head and the tail two can reach the 1.5-2 of all the other two cake electric currents doubly, cause the temperature rise of the two cake of head and the tail two far away higher than all the other several pairs of cakes, if do not carried out particular design, at short notice, cause line cake turn insulation aging, become fragile, easy generation turn-to-turn short circuit, transformer will be caused further to burn.
To sum up: the two cake actual motion electric current of coil head and the tail two can reach the 1.5-2 of all the other two cake electric currents doubly, cause the temperature rise of the two cake of head and the tail two far away higher than all the other several pairs of cakes.
Utility model content
The technical problems to be solved in the utility model is: provide a kind of structure enabling the two disc coil of low pressure of the two cake safe operation of head and the tail two.
The utility model solves the technical scheme that its technical problem adopts: a kind of two disc coil structure, is made up of multiple pairs of cakes, exports after each pair of cake parallel connection; The two cake of head and the tail two is made up of insulating paper; The two cake of described head and the tail two respectively contacts three oil ducts, and the horizontal tail cushion block of three oil ducts of contact is epoxy resin bonded fiber.Insulating paper described in the utility model is the beautiful NOMAX paper of Du Pont's promise of H level; Described horizontal tail cushion block is the epoxy resin bonded fiber of F level.
The utility model changes the common turn insulation of two for head and the tail cake into thermal endurance class higher H level NOMAX paper, and heatproof can reach more than 180 degrees Celsius, the horizontal tail cushion block between two cake is the epoxy resin bonded fiber of F level, runs under can meeting high temperature.
The beneficial effects of the utility model are, solve the defect existed in background technology, and the electricity that this new construction need not reduce head and the tail two cake coils is close, only need slightly to adjust to insulation, just can meet the normal operation of transformer.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is further illustrated.
Fig. 1 is for being structural representation of the present utility model;
In figure: 1, the two cake of stem; 2, the horizontal tail cushion block around the two cake of stem; 3, the two cake of afterbody; 4, the horizontal tail cushion block around the two cake of afterbody.
Embodiment
With preferred embodiment, the utility model is described in further detail by reference to the accompanying drawings now.These accompanying drawings are the schematic diagram of simplification, only basic structure of the present utility model are described in a schematic way, and therefore it only shows the formation relevant with the utility model.
The two disc coil structure of one as shown in Figure 1, is made up of multiple pairs of cakes, exports after each pair of cake parallel connection; The two cake of head and the tail two is made up of insulating paper; The two cake of described head and the tail two respectively contacts three oil ducts, and the horizontal tail cushion block of three oil ducts of contact is epoxy resin bonded fiber.
H level NOMAX paper, as the turn insulation of the two cake of head and the tail, heatproof can reach more than 180 degrees Celsius, and the epoxy resin bonded fiber of F level makes horizontal tail cushion block as raw material, heatproof can reach more than 155 degrees Celsius, can meet 20 years of operation under high temperature.
The just embodiment of the present utility model described in above specification, various illustrating is not construed as limiting flesh and blood of the present utility model, person of an ordinary skill in the technical field after having read specification can to before described embodiment make an amendment or be out of shape, and do not deviate from essence and the scope of utility model.
Claims (3)
1. a two disc coil structure, is characterized in that: be made up of multiple pairs of cakes, exports after each pair of cake parallel connection; The two cake of head and the tail two is made up of insulating paper; The two cake of described head and the tail two respectively contacts three oil ducts, and the horizontal tail cushion block of three oil ducts of contact is epoxy resin bonded fiber.
2. a kind of two disc coil structure as claimed in claim 1, is characterized in that: described insulating paper is the beautiful NOMAX paper of Du Pont's promise of H level.
3. a kind of two disc coil structure as claimed in claim 1, is characterized in that: described horizontal tail cushion block is the epoxy resin bonded fiber of F level.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420388719.2U CN204407148U (en) | 2014-07-14 | 2014-07-14 | A kind of two disc coil structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420388719.2U CN204407148U (en) | 2014-07-14 | 2014-07-14 | A kind of two disc coil structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204407148U true CN204407148U (en) | 2015-06-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420388719.2U Active CN204407148U (en) | 2014-07-14 | 2014-07-14 | A kind of two disc coil structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204407148U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112652441A (en) * | 2020-12-31 | 2021-04-13 | 河南铜牛变压器有限公司 | Maintenance-free high-efficiency energy-saving dry-type electric furnace transformer |
-
2014
- 2014-07-14 CN CN201420388719.2U patent/CN204407148U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112652441A (en) * | 2020-12-31 | 2021-04-13 | 河南铜牛变压器有限公司 | Maintenance-free high-efficiency energy-saving dry-type electric furnace transformer |
| CN112652441B (en) * | 2020-12-31 | 2023-11-28 | 河南铜牛变压器有限公司 | Maintenance-free high-efficiency energy-saving dry type electric furnace transformer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |