CN201655514U - Dry type distribution transformer capable of inputting 10kV voltage and 20kV voltage by means of transformation - Google Patents
Dry type distribution transformer capable of inputting 10kV voltage and 20kV voltage by means of transformation Download PDFInfo
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- CN201655514U CN201655514U CN2010201218025U CN201020121802U CN201655514U CN 201655514 U CN201655514 U CN 201655514U CN 2010201218025 U CN2010201218025 U CN 2010201218025U CN 201020121802 U CN201020121802 U CN 201020121802U CN 201655514 U CN201655514 U CN 201655514U
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Abstract
The utility model provides a dry type distribution transformer capable of inputting 10kV voltage and 20kV voltage by means of transformation, belonging to the technical field of the design and the manufacture of a transformer. An iron core is a three-phase core type structure, a three-phase outer coil is a high-voltage input coil, the high-voltage input coil is a cake type or a cylinder type, and a low-voltage coil is a cylinder type. The dry type distribution transformer is characterized in that each phase high-voltage coil is wound to be an upper winding and a lower winding which are the same, and is provided with a transforming device which can lead the two windings to be mutually transformed between the status of parallel connection and the status of series connection. The transformer can be connected with a 10kV voltage system when the two windings of each phase high-voltage coil are connected with each other in parallel and can be connected with a 20kV voltage system when the two windings of each phase high-voltage coil are connected with each other in series. The transforming device controls the connection status between the two windings of each phase high-voltage coil, so that the dry type distribution transformer can be connected with two voltage systems such as 10kV and 20kV at the different times, reduces the repeated investment, is convenient and fast in transformation, and is stable in product performance.
Description
Technical field
The utility model belongs to the design and manufacturing technology field of transformer, is specially a kind of dry-type distribution transformer that can be connected to the voltage transitions input of 10kV, two kinds of electrical voltage systems of 20kV level the non-same period.
Background technology
In China, 10kV is the most frequently used supply power voltage of electric power system.Along with expanding economy, the electrical voltage system of 10kV does not satisfy safe, stable, economic electricity consumption requirement gradually, and China will progressively promote the 20kV electrical voltage system to replace the 10kV electrical voltage system in the recent period.Because the enforcement of 20kV electrical voltage system is a progressive process, so the user of 10kV system purchased distribution transformer now, purchases new distribution transformer again again when changing the 20kV system in the future, causes overlapping investment.Also there is not at present energy be connected to the dry-type distribution transformer of the voltage transitions input of 10kV, two kinds of electrical voltage systems of 20kV level the non-same period.
The utility model content
The purpose of this utility model provides the dry-type distribution transformer of a kind of 10kV, 20kV step voltage conversion input, promptly providing can be by product self conversion but not be connected to the dry-type distribution transformer of 10kV, two kinds of electrical voltage systems of 20kV level the same period, this transformer both can be used for present 10kV electrical voltage system, can be used for 20kV electrical voltage system in the future by conversion again.
Structure of the present utility model is: iron core is the dry-type distribution transformer of three-phase core formula structure, the three-phase exterior loop is the high pressure input coil, high-tension coil is cake formula or drum type brake, low-voltage coil is a drum type brake, it is characterized in that: the identical two sections winding of every phase high-tension coil coiled, and be provided with and can allow these two sections windings mutual conversion equipment of conversion between the parallel connection and serial connection state.Said can allow two sections windings between the parallel connection and serial connection state mutually the conversion equipment of conversion known by the technical staff of electrical field, be prior art.Transformer can connect the 10kV electrical voltage system and can connect the 20kV electrical voltage system during series connection when two sections windings of every phase high-tension coil were in parallel.
The structure that the utility model is further optimized is: said conversion equipment be every phase high-tension coil two sections winding two ends on the lead-in wire support plate, be respectively equipped with lead terminal, the lead-in wire support plate is provided with and can allows these two sections windings conduction junction pipe of conversion mutually between the parallel connection and serial connection state.
The utlity model has following advantage: control connection status between two sections windings of every phase high-tension coil by conversion equipment, thereby realize that a power transformer product can be connected to 10kV, two kinds of electrical voltage systems of 20kV level the non-same period, reduced overlapping investment, and change convenient and swiftly, properties of product are stable.
Description of drawings
Main TV structure schematic diagram when Fig. 1 is used for the 10kV electrical voltage system for embodiment.
Main TV structure schematic diagram when Fig. 2 is used for the 20kV electrical voltage system for embodiment.
Embodiment
Embodiment: see Fig. 1 and 2.Dry-type distribution transformer three-phase exterior loop is a cake formula high pressure input coil, and low-voltage coil is a drum type brake, the identical two sections winding of every phase high-tension coil coiled.Every phase high-tension coil two sections winding two ends all be respectively equipped with lead terminal at lead-in wire on the support plate, the lead-in wire support plate is provided with and can allows these two sections windings conduction junction pipe of conversion mutually between the parallel connection and serial connection state.
As Fig. 1, on the lead-in wire support plate, connect the lead terminal A (B, C) of high-tension coil epimere winding and the lead terminal A ' of hypomere winding (B ', C ') with tube connector 1, connect the lead terminal X (Y, Z) of high-tension coil epimere windings and the lead terminal X ' of hypomere winding (Y ', Z ') with tube connector 2, making two sections windings become is connected in parallel, this connection promptly becomes 10kV level transformer, can connect the 10kV electrical network.As Fig. 2, connect the lead terminal X (Y, Z) of high-tension coil epimere windings and the lead terminal A ' of hypomere winding (B ', C ') with tube connector 3, make two sections windings become and be connected in series that this connection promptly becomes 20kV level transformer, can connect the 20kV electrical network.
Above embodiment is only in order to be further described the utility model, and scope of the present utility model is not subjected to the limitation of illustrated embodiment.
Claims (2)
1.10kV, the dry-type distribution transformer of 20kV step voltage conversion input, iron core is a three-phase core formula structure, the three-phase exterior loop is the high pressure input coil, high-tension coil is cake formula or drum type brake, low-voltage coil is a drum type brake, it is characterized in that: the identical two sections winding of every phase high-tension coil coiled, and be provided with and can allow these two sections windings mutual conversion equipment of conversion between the parallel connection and serial connection state.
2. as the said transformer of claim 1, it is characterized in that: said conversion equipment be every phase high-tension coil two sections winding two ends be respectively equipped with lead terminal at lead-in wire on the support plate, the lead-in wire support plate is provided with and can allows these two sections windings conduction junction pipe of conversion mutually between the parallel connection and serial connection state.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201218025U CN201655514U (en) | 2010-03-03 | 2010-03-03 | Dry type distribution transformer capable of inputting 10kV voltage and 20kV voltage by means of transformation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201218025U CN201655514U (en) | 2010-03-03 | 2010-03-03 | Dry type distribution transformer capable of inputting 10kV voltage and 20kV voltage by means of transformation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201655514U true CN201655514U (en) | 2010-11-24 |
Family
ID=43120758
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201218025U Expired - Fee Related CN201655514U (en) | 2010-03-03 | 2010-03-03 | Dry type distribution transformer capable of inputting 10kV voltage and 20kV voltage by means of transformation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201655514U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102290218A (en) * | 2011-05-04 | 2011-12-21 | 广东海鸿变压器有限公司 | Resin insulated dual-voltage three-dimensional wound core dry-type transformer |
| CN106128720A (en) * | 2016-08-30 | 2016-11-16 | 吴江变压器有限公司 | A kind of matrix loop structure |
-
2010
- 2010-03-03 CN CN2010201218025U patent/CN201655514U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102290218A (en) * | 2011-05-04 | 2011-12-21 | 广东海鸿变压器有限公司 | Resin insulated dual-voltage three-dimensional wound core dry-type transformer |
| CN106128720A (en) * | 2016-08-30 | 2016-11-16 | 吴江变压器有限公司 | A kind of matrix loop structure |
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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: 20101124 Termination date: 20160303 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |