CN203386578U - Coil structure of power transformer - Google Patents
Coil structure of power transformer Download PDFInfo
- Publication number
- CN203386578U CN203386578U CN201320290231.1U CN201320290231U CN203386578U CN 203386578 U CN203386578 U CN 203386578U CN 201320290231 U CN201320290231 U CN 201320290231U CN 203386578 U CN203386578 U CN 203386578U
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- Prior art keywords
- coil
- voltage
- low
- power transformer
- voltage coil
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- Expired - Fee Related
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Abstract
The utility model discloses a coil structure of a power transformer. The coil structure comprises a low-voltage coil, a high-voltage coil, a high-voltage adjusting coil, a low-voltage coil inner membrane, an epoxy resin layer, a high-voltage coil outer membrane and an insulation layer, wherein the low-voltage coil inner membrane is arranged at the inner surface of the low-voltage coil; the high-voltage coil outer membrane is arranged at the outer surface of the high-voltage coil; the epoxy resin layer is arranged between the high-voltage coil and the low-voltage coil; the insulation layer is arranged between the high-voltage coil and the high-voltage adjusting coil. According to the coil structure of the power transformer, the high-voltage adjusting coil is used for adjusting the voltage magnitude outside the high-voltage coil, and the coil structure has the advantages that the application range is wide, the anti-short-circuit capacity is strong and the noise is low.
Description
Technical field
The utility model relates to a kind of loop construction of power transformer.
Background technology
Along with the development of China's modernization construction, the urban and rural power grids load constantly increases.Existing dry-type transformer is adopted by large-scale popularization at present in electrical network.Along with going deep into of city net and the upgrading of rural power grids, the power consumption of city and country has had significantly to be increased, but because the part low-voltage circuit is safeguarded not in place, the possibility that overload and short circuit occur increases greatly, so that the electric current of transformer surpasses several times even tens times of rated current, now, winding is subject to the electromagnetic torque considerable influence and the displacement distortion occurs.Due to the sharp increase of electric current, the coil temperature of distribution transformer raises rapidly, causes insulation accelerated agingly, forms the fragment shape and comes off, and makes the line body exposed and cause turn-to-turn short circuit, burns out distribution transformer.Traditional dry-type transformer relies on cross-ventilation to carry out that nature is cooling or to increase blower fan cooling, and multiplex in small capacity transformers such as skyscraper, the electricity consumption of high speed toll station and localized lighting, electronic circuits, the scope of application is little.
Summary of the invention
The technical problems to be solved in the utility model is to provide that a kind of scope of application is wide, anti-short circuit capability is strong and the loop construction of the power transformer of low noise.
For addressing the above problem, the utility model adopts following technical scheme: a kind of loop construction of power transformer, comprise low-voltage coil, high-tension coil, high voltage adjusting coil, low-voltage coil inner membrance, epoxy resin layer, high-tension coil adventitia and insulating barrier, described low-voltage coil inner membrance is arranged on the low-voltage coil inner surface, described high-tension coil adventitia is arranged on the high-tension coil outer surface, described epoxy resin layer is arranged between high-tension coil and low-voltage coil, and described insulating barrier is arranged between high-tension coil and high voltage adjusting coil.
As preferably, be provided with the first heat dissipation wind channel in described low-voltage coil, be provided with the second heat dissipation wind channel in described high-tension coil.
As preferably, the first heat dissipation wind channel in described low-voltage coil is 3, and the second heat dissipation wind channel in described high-tension coil is 2.
As preferably, described epoxy resin layer is provided with glass fibre.
The beneficial effect of the loop construction of the utility model power transformer is: regulate because the loop construction of described power transformer has been used the high voltage adjusting coil to carry out height to voltage outside high-tension coil, have advantages of that the scope of application is wide, anti-short circuit capability strong and low noise.
The accompanying drawing explanation
The structure chart of the loop construction that Fig. 1 is the utility model power transformer.
Embodiment
Refer to shown in Fig. 1, the utility model adopts following technical scheme: a kind of loop construction of power transformer, comprise low-voltage coil 1, high-tension coil 2, high voltage adjusting coil 3, low-voltage coil inner membrance 4, epoxy resin layer 5, high-tension coil adventitia 6 and insulating barrier 8, described low-voltage coil inner membrance 4 is arranged on low-voltage coil 1 inner surface, described high-tension coil adventitia 6 is arranged on high-tension coil 2 outer surfaces, described epoxy resin layer 5 is arranged between high-tension coil 2 and low-voltage coil 1, and described insulating barrier 8 is arranged between high-tension coil 2 and high voltage adjusting coil 3.
Be provided with the first heat dissipation wind channel 9 in described low-voltage coil 1, be provided with the second heat dissipation wind channel 7 in described high-tension coil 2.The first heat dissipation wind channel 9 in described low-voltage coil 1 is 3, and the second heat dissipation wind channel 7 in described high-tension coil 2 is 2.Described epoxy resin layer 5 is provided with glass fibre, and glass fibre is network configuration.
, place network configuration and make two coils be fixed on sustained height between low-voltage coil 1 and high-tension coil 2 during coil in perfusion, then, to infusion epoxy resin in network configuration, make it whole filling process and oversimplify.The noise in the middle of operation is less by transformer for the sustained height of high-tension coil 2 and low-voltage coil 1.Add a high voltage adjusting coil outside high-tension coil, can be controlled at any time the height of voltage.Make power transformer no longer only be only applicable to small capacity transformer.
The beneficial effect of the loop construction of the utility model power transformer is: regulate because the loop construction of described power transformer has been used the high voltage adjusting coil to carry out height to voltage outside high-tension coil, have advantages of that the scope of application is wide, anti-short circuit capability strong and low noise.
The foregoing is only embodiment of the present utility model, but protection range of the present utility model is not limited to this, any variation of expecting without creative work or replacement, within all should being encompassed in protection range of the present utility model.Therefore, protection range of the present utility model should be as the criterion with the protection range that claims were limited.
Claims (4)
1. the loop construction of a power transformer, it is characterized in that: comprise low-voltage coil, high-tension coil, high voltage adjusting coil, low-voltage coil inner membrance, epoxy resin layer, high-tension coil adventitia and insulating barrier, described low-voltage coil inner membrance is arranged on the low-voltage coil inner surface, described high-tension coil adventitia is arranged on the high-tension coil outer surface, described epoxy resin layer is arranged between high-tension coil and low-voltage coil, and described insulating barrier is arranged between high-tension coil and high voltage adjusting coil.
2. the loop construction of power transformer according to claim 1, is characterized in that: be provided with the first heat dissipation wind channel in described low-voltage coil, be provided with the second heat dissipation wind channel in described high-tension coil.
3. the loop construction of power transformer according to claim 2 is characterized in that: the first heat dissipation wind channel in described low-voltage coil is 3, and the second heat dissipation wind channel in described high-tension coil is 2.
4. the loop construction of power transformer according to claim 1, it is characterized in that: described epoxy resin layer is provided with glass fibre.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320290231.1U CN203386578U (en) | 2013-05-25 | 2013-05-25 | Coil structure of power transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320290231.1U CN203386578U (en) | 2013-05-25 | 2013-05-25 | Coil structure of power transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203386578U true CN203386578U (en) | 2014-01-08 |
Family
ID=49875037
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320290231.1U Expired - Fee Related CN203386578U (en) | 2013-05-25 | 2013-05-25 | Coil structure of power transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203386578U (en) |
-
2013
- 2013-05-25 CN CN201320290231.1U patent/CN203386578U/en not_active Expired - Fee Related
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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 |
Granted publication date: 20140108 Termination date: 20160525 |