CN201975234U - Body structure of three-winding power transformer - Google Patents
Body structure of three-winding power transformer Download PDFInfo
- Publication number
- CN201975234U CN201975234U CN2011200419178U CN201120041917U CN201975234U CN 201975234 U CN201975234 U CN 201975234U CN 2011200419178 U CN2011200419178 U CN 2011200419178U CN 201120041917 U CN201120041917 U CN 201120041917U CN 201975234 U CN201975234 U CN 201975234U
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- coil
- voltage regulation
- voltage regulating
- high voltage
- coils
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- Expired - Fee Related
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Abstract
The utility model discloses a body structure of a three-winding power transformer, comprising an iron core, a low voltage coil, a medium voltage coil, a high voltage coil, a medium voltage regulating coil and two high voltage regulating coils, which are arranged in sequence from the interior to the exterior. The body structure of the three-winding power transformer is characterized in that both the medium voltage regulating coil and the high voltage regulating coils are wound on a paper cylinder at the periphery of the high voltage coil; both the high voltage regulating coils are connected with each other in series; the medium voltage regulating coil is positioned between both the high voltage regulating coils; and both the high voltage regulating coils and the medium voltage regulating coil are wrapped and wound by angle rings and insulating cylinders. The body structure of the three-winding power transformer has the advantages of good process, small volume, light weight, small loss, obvious material-saving effect, good heat dissipation performance, low loss, low noise, convenience for production and manufacture, good mechanical strength and high short circuit impedance resistance.
Description
Technical field
The utility model belongs to the power transformer that is applied to the high voltage power transmission and transforming system, particularly a kind of machine body structure of novel three winding power transformers.
Background technology
The three winding power transformers that use in the electric power system at present are more and more, three winding step-down transformers mainly are after a kind of high tension voltage input, respectively with other two kinds of voltages and low pressure output, can use for two kinds of line voltage distributions simultaneously, its machine body structure is arranged and is followed successively by: iron core, low-voltage coil, the middle voltage regulation coil of pressing, intermediate voltage winding, high-tension coil, the high pressure voltage regulation coil, the middle pressure voltage regulation coil that this machine body structure is arranged comes between intermediate voltage winding and the high-tension coil, because middle pressure voltage regulation coil has the tap lead-out wire, the middle pressure between voltage regulation coil and the high-tension coil apart from wayward, press the tap lead-out wire and the discharge of high-tension coil head end of voltage regulation coil in causing easily, cause accident.Therefore the manufacturability of product is bad, and volume is big, and coil diameter is big, and the lead consumption is many, Heavy Weight, and heat dispersion is bad simultaneously, and loss is corresponding bigger.
Summary of the invention
Technical problem to be solved in the utility model is that a kind of good manufacturability will be provided, and volume is little, and is in light weight, and loss is little, winding perfect heat-dissipating, three safe and reliable winding electric power structure of transformer body.
The utility model is achieved in that it comprises the iron core, low-voltage coil, intermediate voltage winding and the high-tension coil that are arranged in order from the inside to the outside and middle pressure voltage regulation coil, high pressure voltage regulation coil, its special character is: press voltage regulation coil and high pressure voltage regulation coil all to be wound on the paper web of high-tension coil periphery in described, the high pressure voltage regulation coil is two and series connection mutually, the middle voltage regulation coil of pressing is between two high pressure voltage regulation coils, and two high pressure voltage regulation coils and middle pressure voltage regulation coil hold by square ring and screen respectively.
The utility model has the advantages that:
1, good manufacturability, volume is little, and is in light weight, and loss is little, and the material-saving effect is obvious.
Compare with traditional structure, middle pressure voltage regulation coil and high pressure voltage regulation coil are arranged together, reduced the size of a voltage regulation coil, the whole coil diameter is reduced a lot, the weight of lead also reduces thereupon.
2, perfect heat-dissipating, loss is low, and noise is low.
Because coil diameter reduces, and place, empty road do not have unnecessary coil, makes it radiating effect and further improves, and supplementary load loss significantly reduce, and energy loss is little, and energy-saving effect is very obvious; And when operation electric and magnetic oscillation less, noise is low, electric field and Distribution of Magnetic Field are more even.
3. it is convenient to manufacture.
Because its special arrangement mode, suit is convenient when manufacturing, and has reduced the suit operation one time.
4. mechanical strength is good, and the Short Circuit withstand impedance can be strong.
Whole voltage regulation coil has formed an integral body, and holds by square ring and screen respectively, has reduced putting property of office, has improved the end electric field, makes dynamic thermal stability improve, and has increased the coefficient of safety of product.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Among the figure: iron core 1, low-voltage coil 2, intermediate voltage winding 3, high-tension coil 4, high pressure voltage regulation coil 5, middle pressure voltage regulation coil 6, screen 7, square ring 8, stay 9, paper web 10.
Embodiment
As shown in the figure, this three windings electric power structure of transformer body comprises the iron core 1 that is arranged in order from the inside to the outside, low-voltage coil 2, intermediate voltage winding 3 and high-tension coil 4 and middle pressure voltage regulation coil 6, high pressure voltage regulation coil 5, at iron core 1, low-voltage coil 2, the periphery of intermediate voltage winding 3 and high-tension coil 4 is respectively equipped with paper web 10, the uniform respectively stay 9 that is bonded with on each paper web 10 outer wall, press voltage regulation coil 6 and high pressure voltage regulation coil 5 all to be wound on the stay 9 of high-tension coil 4 peripheral paper webs 10 in described, high pressure voltage regulation coil 5 is two and series connection mutually, the middle voltage regulation coil 6 of pressing is between two high pressure voltage regulation coils 5, and two high pressure voltage regulation coils 5 and middle pressure voltage regulation coil 6 hold by square ring 8 and screen 7 respectively.
Claims (1)
1. winding electric power structure of transformer body, comprise the iron core, low-voltage coil, intermediate voltage winding and the high-tension coil that are arranged in order from the inside to the outside and middle pressure voltage regulation coil, high pressure voltage regulation coil, it is characterized in that: press voltage regulation coil and high pressure voltage regulation coil all to be wound on the paper web of high-tension coil periphery in described, the high pressure voltage regulation coil is two and series connection mutually, the middle voltage regulation coil of pressing is between two high pressure voltage regulation coils, and two high pressure voltage regulation coils and middle pressure voltage regulation coil hold by square ring and screen respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200419178U CN201975234U (en) | 2011-02-21 | 2011-02-21 | Body structure of three-winding power transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200419178U CN201975234U (en) | 2011-02-21 | 2011-02-21 | Body structure of three-winding power transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201975234U true CN201975234U (en) | 2011-09-14 |
Family
ID=44580332
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200419178U Expired - Fee Related CN201975234U (en) | 2011-02-21 | 2011-02-21 | Body structure of three-winding power transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201975234U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105655112A (en) * | 2016-03-30 | 2016-06-08 | 常州东芝舒电变压器有限公司 | Regulating winding combination structure of on-load voltage regulating transformer |
-
2011
- 2011-02-21 CN CN2011200419178U patent/CN201975234U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105655112A (en) * | 2016-03-30 | 2016-06-08 | 常州东芝舒电变压器有限公司 | Regulating winding combination structure of on-load voltage regulating transformer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110914 Termination date: 20140221 |