CN209843475U - Three-phase three-winding transformer for wind power generation - Google Patents
Three-phase three-winding transformer for wind power generation Download PDFInfo
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- CN209843475U CN209843475U CN201821869818.7U CN201821869818U CN209843475U CN 209843475 U CN209843475 U CN 209843475U CN 201821869818 U CN201821869818 U CN 201821869818U CN 209843475 U CN209843475 U CN 209843475U
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Abstract
The utility model discloses a three-phase three-winding transformer for wind power generation, ordinary fan outlet voltage is 0.69kV (step up transformer low pressure side voltage promptly), and the high-pressure side through the special step up transformer of wind power generation is given electricity when starting the fan to make the low pressure side respond to voltage, drive the fan and start, this kind of step up transformer is three-phase duplex winding transformer. The utility model discloses a: the fan needs to be started by using 0.69kV voltage, the output voltage of the fan is 6kV, the 6kV side is connected with the low-voltage side of a step-up transformer, the voltage is increased to 37kV through the transformer, and then the fan is connected to a power grid; the boosting transformation adopts a three-phase three-winding form, the capacity of a high-voltage side is 3380kVA, the voltage of the high-voltage side is 37kV, the capacity of a medium-voltage side is 3000kVA, the voltage of the medium-voltage side is 6kV, the capacity of a low-voltage side is 380kVA, and the voltage of the low-voltage side is 0.69 kV. The coils adopt a radial split form and are a low-voltage coil, a medium-voltage coil and a high-voltage coil from inside to outside in sequence.
Description
Technical Field
The utility model relates to a transformer field of making, concretely relates to three-phase three-winding transformer for wind power generation.
Background
At present, with the development of green energy advocated by the state, wind power generation occupies a part of market share as a new energy, with the continuous innovation of a fan, the technical parameters of the special step-up transformer for wind power generation are also continuously optimized, and a transformer manufacturer needs to design a novel transformer according to market requirements.
Disclosure of Invention
The utility model aims at overcoming above-mentioned prior art not enough, provide a three-phase three-winding transformer for wind power generation, this step up the vary voltage and adopt three-phase three-winding form, and the high-pressure side capacity is 3380kVA, and the high-pressure side voltage is 37kV, and middling pressure side capacity is 3000kVA, and middling pressure side voltage is 6kV, and low pressure side capacity is 380kVA, and low pressure side voltage is 0.69 kV. The coils adopt a radial split form and are a low-voltage coil, a medium-voltage coil and a high-voltage coil from inside to outside in sequence.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a three-phase three-winding transformer for wind power generation comprises an oil tank, an oil conservator and a sheet material; an oil storage cabinet is arranged above the oil tank and is communicated with the oil tank through a low-voltage sleeve, the side surface of the bottom of the oil tank is communicated with a high-voltage sleeve, the side surface of the upper part of the oil tank is communicated with a medium-voltage sleeve, and a transformer body is arranged in the oil tank body; the transformer body is composed of an iron core assembly, a high-voltage lead, a high-voltage coil, a medium-voltage coil, a low-voltage lead, a medium-voltage lead and a transformer body insulator; the high-voltage lead is connected into the oil tank and is wound with a high-voltage coil; the medium-voltage coil is arranged in the medium-voltage sleeve and connected to the oil tank, the low-voltage coil is arranged in the low-voltage spool and then connected to the oil tank, after the connection is completed, the oil tank is pressed with the iron core assembly, and the transformer body is insulated from the external oil tank body through the insulation of the transformer body.
Furthermore, the transformer body adopts a three-phase three-winding form, the high-voltage side capacity is 3380kVA, the high-voltage side voltage is 37kV, the medium-voltage side capacity is 3000kVA, the medium-voltage side voltage is 6kV, the low-voltage side capacity is 380kVA, and the low-voltage side voltage is 0.69 kV.
Furthermore, all the coils adopt a radial split mode and are a low-voltage coil, a medium-voltage coil and a high-voltage coil from inside to outside in sequence.
The beneficial effects of the utility model are that, ordinary fan outlet voltage is 0.69kV (step up transformer low pressure side voltage promptly), and the high-pressure side through the special step up transformer of wind power generation is given electricity when starting the fan to make the low pressure side respond to voltage, drive the fan and start, this kind of step up transformer is three-phase duplex winding transformer.
The utility model discloses a: the fan needs to be started by using 0.69kV voltage, the output voltage of the fan is 6kV, the 6kV side is connected with the low-voltage side of a step-up transformer, the voltage is increased to 37kV through the transformer, and then the fan is connected into a power grid.
The boosting transformation adopts a three-phase three-winding form, the capacity of a high-voltage side is 3380kVA, the voltage of the high-voltage side is 37kV, the capacity of a medium-voltage side is 3000kVA, the voltage of the medium-voltage side is 6kV, the capacity of a low-voltage side is 380kVA, and the voltage of the low-voltage side is 0.69 kV. The coils adopt a radial split form and are a low-voltage coil, a medium-voltage coil and a high-voltage coil from inside to outside in sequence.
Drawings
FIG. 1 is a front view of a transformer profile;
FIG. 2 is a rear view of the transformer profile;
FIG. 3 is a side view of the transformer profile;
FIG. 4 is a top view of the transformer profile;
FIG. 5 is a bottom view of the transformer profile;
FIG. 6 is a front view of the transformer body (inside the transformer tank);
FIG. 7 is a rear view of the transformer body (inside the transformer tank);
FIG. 8 is a side view of a transformer body (placed inside a transformer tank);
FIG. 9 is a top view of the transformer body (inside the transformer tank);
FIG. 10 is a bottom view of the transformer body (inside the transformer tank);
the transformer comprises an oil tank 1, an oil storage cabinet 2, a piece powder 3, a high-voltage sleeve 4, a low-voltage sleeve 5, a medium-voltage sleeve 6, an iron core assembly 7, a high-voltage lead 8, a high-voltage coil 9, a medium-voltage coil 10, a low-voltage coil 11, a low-voltage lead 12, a medium-voltage lead 13 and a transformer body insulation 14.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and examples, which are provided for the purpose of illustration only and are not intended to limit the scope of the invention.
As shown in fig. 1 to 5, a three-phase three-winding transformer for wind power generation comprises an oil tank 1, an oil conservator 2 and a sheet metal 3; an oil conservator 2 is arranged above the oil tank 1 and is communicated with the oil conservator through a low-voltage sleeve 5, the side surface of the bottom of the oil tank 1 is communicated with a high-voltage sleeve 4, the side surface of the upper part of the oil tank 1 is communicated with a medium-voltage sleeve 6, and a transformer body is arranged in the oil tank 1; the transformer body consists of an iron core assembly 7, a high-voltage lead 8, a high-voltage coil 9, a medium-voltage coil 10, a low-voltage coil 11, a low-voltage lead 12, a medium-voltage lead 13 and a transformer body insulator 14; the high-voltage lead 8 is connected into the oil tank 1 and is wound with a high-voltage coil 9; medium voltage coil 10 is arranged in the medium voltage sleeve pipe in and is connected to on the oil tank 1, low voltage coil 11 is arranged in and is connected to behind the low-voltage spool 5 in the oil tank 1, connect the back that finishes, 1 goes up the pressure of oil tank and establishes the iron core assembly, and will through body insulation 14 transformer body and outside oil tank 1 body insulation, transformer body adopts three-phase three-winding form, and the high pressure side capacity is 3380kVA, and the high pressure side voltage is 37kV, and the medium pressure side capacity is 3000kVA, and the medium pressure side voltage is 6kV, and the low pressure side capacity is 380kVA, and the low pressure side voltage is 0.69kV, and all coils adopt radial split form, are low voltage coil 11, medium voltage coil 10, high voltage coil 9 from inside to outside in proper order.
Although the specific embodiments of the present invention have been described above with reference to the accompanying drawings, the present invention is not limited to the above embodiments, and various modifications or variations that can be made by those skilled in the art without creative efforts are still within the scope of the present invention.
Claims (3)
1. A three-phase three-winding transformer for wind power generation is characterized by comprising an oil tank (1), an oil conservator (2) and a piece powder body (3); an oil conservator (2) is arranged above the oil tank (1) and is communicated with the oil conservator through a low-voltage sleeve (5), a high-voltage sleeve (4) is communicated with the side surface of the bottom of the oil tank (1), a medium-voltage sleeve (6) is communicated with the side surface of the upper part of the oil tank (1), and a transformer body is arranged in the oil tank (1); the transformer body consists of an iron core assembly (7), a high-voltage lead (8), a high-voltage coil (9), a medium-voltage coil (10), a low-voltage coil (11), a low-voltage lead (12), a medium-voltage lead (13) and a transformer body insulator (14); the high-voltage lead (8) is connected into the oil tank (1) and is wound by a high-voltage coil (9); the medium-voltage coil (10) is arranged in the medium-voltage sleeve and connected onto the oil tank (1), the low-voltage coil (11) is arranged in the low-voltage sleeve (5) and then connected into the oil tank (1), after the connection is finished, the oil tank (1) is pressed with an iron core assembly, and the transformer body is insulated from the external oil tank (1) through the body insulation (14).
2. A three-phase three-winding transformer for wind power generation according to claim 1, wherein said transformer body is in the form of three-phase three-winding, and has a high-side capacity of 3380kVA, a high-side voltage of 37kV, a medium-side capacity of 3000kVA, a medium-side voltage of 6kV, a low-side capacity of 380kVA, and a low-side voltage of 0.69 kV.
3. A transformer for wind power generation with three phases and three windings according to claim 1, wherein all the coils are in the form of radial split, and are a low voltage coil (11), a medium voltage coil (10) and a high voltage coil (9) in sequence from inside to outside.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821869818.7U CN209843475U (en) | 2018-11-14 | 2018-11-14 | Three-phase three-winding transformer for wind power generation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821869818.7U CN209843475U (en) | 2018-11-14 | 2018-11-14 | Three-phase three-winding transformer for wind power generation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209843475U true CN209843475U (en) | 2019-12-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821869818.7U Active CN209843475U (en) | 2018-11-14 | 2018-11-14 | Three-phase three-winding transformer for wind power generation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209843475U (en) |
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2018
- 2018-11-14 CN CN201821869818.7U patent/CN209843475U/en active Active
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