CN203225155U - On-line cooling device of large-current transformer - Google Patents
On-line cooling device of large-current transformer Download PDFInfo
- Publication number
- CN203225155U CN203225155U CN 201320164687 CN201320164687U CN203225155U CN 203225155 U CN203225155 U CN 203225155U CN 201320164687 CN201320164687 CN 201320164687 CN 201320164687 U CN201320164687 U CN 201320164687U CN 203225155 U CN203225155 U CN 203225155U
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- low
- current transformer
- iron core
- pressure side
- cooling device
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Abstract
The utility model discloses an on-line cooling device of a large-current transformer, and solves the radiating problem of the large-current transformer. The on-line cooling device is characterized in that a high-voltage side winding (3) is arranged at the left iron core of square iron core (2); a low-voltage side hollow winding (4) is arranged at the right iron core of the square iron core (2); the shell of the low-voltage hollow winding (4) is electrically connected with a load (7); one end of the low-voltage side hollow winding (4) is communicated with the inlet of a compression circulation pump (5) while the other end is communicated with the outlet of the compression circulation pump (5); and a hydrogen cooling medium is arranged in the hollow cavity of the low-voltage side hollow winding (4). The on-line cooling device of the large-current transformer adopts a hollow conductor aiming at the large-current transformer, and carries out cooling by introducing air medium into the conductor, so the cooling efficiency and the overload capacity of the large-current transformer are improved.
Description
Technical field
The utility model relates to a kind of cooling device of strong current transformer, is fit to be applied in the transformer heat radiation of big electric current, low-voltage grade and the cooling device use.
Background technology
On the cross section of long straight conductor, constant electric current is equally distributed for alternating current, occurs passing through of self induction electromotive force opposing electric current in the conductor, and the size of this electromotive force is proportional to the magnetic flux that the conductor unit time cuts.Be example with the circular solids conductor, the closer to the conductor center, it is just more big to be subjected to the self induction electromotive force that the outside magnetic line of force produces; Then more be not subjected to the influence of its inner magnet line of force the closer to the surface, thereby self induction electromotive force is just more little, this just causes conductive surface place current density bigger.When power frequency is higher, can think that electric current only flows through in the very thin one deck of conductive line surfaces.Based on above theory, hollow conductor replaces solid conductor, can not only improve the utilance of lead greatly, can also improve the cooling performance of lead.Be badly in need of to develop a kind of online cooling device for the strong current transformer that heat radiation is had relatively high expectations.
Summary of the invention
The utility model provides a kind of strong current transformer online cooling device, has solved the heat dissipation problem of strong current transformer.
The online cooling device of a kind of strong current transformer, comprise oil tank of transformer, in oil tank of transformer, be provided with the square shape iron core, the left iron core of square shape iron core is provided with the high-pressure side winding, the right iron core of square shape iron core is provided with the hollow winding of low-pressure side, the shell of the hollow winding of low-pressure side is electrically connected with load, one end of the hollow winding of low-pressure side is communicated with the entrance of compression cycle pump, the other end of the hollow winding of low-pressure side is communicated with the compression cycle delivery side of pump, is provided with the hydrogen coolant in the cavity of the hollow winding of low-pressure side.
The shell of the hollow winding of low-pressure side is connected with ground.
The utility model is to adopt hollow conductor at strong current transformer, cools off at the inner logical hydrogen of conductor or water, improves cooling effectiveness and the overload capability of strong current transformer.
Description of drawings
Fig. 1 is structural representation of the present utility model.
Embodiment
The online cooling device of a kind of strong current transformer, comprise oil tank of transformer 1, in oil tank of transformer 1, be provided with square shape iron core 2, the left iron core of square shape iron core 2 is provided with high-pressure side winding 3, the right iron core of square shape iron core 2 is provided with the hollow winding 4 of low-pressure side, the shell of the hollow winding 4 of low-pressure side is electrically connected with load 7, one end of the hollow winding 4 of low-pressure side is communicated with the entrance of compression cycle pump 5, the other end of the hollow winding 4 of low-pressure side is communicated with the outlet of compression cycle pump 5, is provided with the hydrogen coolant in the cavity of the hollow winding 4 of low-pressure side.
The shell of the hollow winding 4 of low-pressure side is connected with ground 6.Realize the recycling of coolant, and protected environment.
Claims (2)
1. online cooling device of strong current transformer, comprise oil tank of transformer (1), in oil tank of transformer (1), be provided with square shape iron core (2), it is characterized in that, the left iron core of square shape iron core (2) is provided with high-pressure side winding (3), the right iron core of square shape iron core (2) is provided with the hollow winding of low-pressure side (4), the shell of the hollow winding of low-pressure side (4) is electrically connected with load (7), one end of the hollow winding of low-pressure side (4) is communicated with the entrance of compression cycle pump (5), the other end of the hollow winding of low-pressure side (4) is communicated with the outlet of compression cycle pump (5), is provided with the hydrogen coolant in the cavity of the hollow winding of low-pressure side (4).
2. the online cooling device of a kind of strong current transformer according to claim 1 is characterized in that, the shell of the hollow winding of low-pressure side (4) is connected with ground (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320164687 CN203225155U (en) | 2013-04-05 | 2013-04-05 | On-line cooling device of large-current transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320164687 CN203225155U (en) | 2013-04-05 | 2013-04-05 | On-line cooling device of large-current transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203225155U true CN203225155U (en) | 2013-10-02 |
Family
ID=49252152
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320164687 Expired - Lifetime CN203225155U (en) | 2013-04-05 | 2013-04-05 | On-line cooling device of large-current transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203225155U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105719798A (en) * | 2016-02-02 | 2016-06-29 | 邓福亮 | SF6 gas-charged testing transformer with coil cooling device |
| CN112382469A (en) * | 2020-11-04 | 2021-02-19 | 广东电网有限责任公司 | Air cooling device and cooling method for high-current transformer |
-
2013
- 2013-04-05 CN CN 201320164687 patent/CN203225155U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105719798A (en) * | 2016-02-02 | 2016-06-29 | 邓福亮 | SF6 gas-charged testing transformer with coil cooling device |
| CN112382469A (en) * | 2020-11-04 | 2021-02-19 | 广东电网有限责任公司 | Air cooling device and cooling method for high-current transformer |
| CN112382469B (en) * | 2020-11-04 | 2022-03-29 | 广东电网有限责任公司 | Air cooling device and cooling method for high-current transformer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20131002 |