CN100587864C - Single-phase traction transformer for AT power supply mode high speed electrified railroad - Google Patents
Single-phase traction transformer for AT power supply mode high speed electrified railroad Download PDFInfo
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- CN100587864C CN100587864C CN200810055161A CN200810055161A CN100587864C CN 100587864 C CN100587864 C CN 100587864C CN 200810055161 A CN200810055161 A CN 200810055161A CN 200810055161 A CN200810055161 A CN 200810055161A CN 100587864 C CN100587864 C CN 100587864C
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Abstract
The invention relates to a single-phase traction transformer for a high-speed electrified railway with an AT power supply mode. An iron core of the transformer adopts a single-phase two-pillar or single-phase four-pillar structure, and the single-phase four-pillar structure adopts a structure of two main pillars and two side pillars. Three concentric type windings are respectively sleeved on a first main pillar and a second main pillar, windings T1, F1, H1 respectively face outwardly from the first main pillar, and windings F2, T2, H2 respectively face outwardly from the second main pillar. The winding T1 of the first main pillar is connected in series with the winding T2 of the second main pillar, the winding F1 of the first main pillar is connected in series with the winding F2 of the second main pillar, and the winding H1 of the first main pillar is connected in series or in parallel with the winding H2 of the second main pillar. The terminals A, B of the windings H1, H2 are the single-phase input terminals of the transformer, the terminals T, N1 of the windings T1, T2, and the terminals F, N2 of the windings F1, F2 are respectively the single-phase output terminals of the transformer, and the terminals N1, N2 are grounded. The transformer has the advantages that: the transformer meets a formula of Z21 is equal to Z31, and the inequality of (3Z21+Z31-Z23-1)/4 is less than 0.45 Omega; therefore, the transformer can replace an exported AT, and save large investment for railway construction.
Description
Technical field
The present invention relates to a kind of single-phase traction transformer of the AT of being used for supply power mode high-speed electric railway.
Background technology
At present, the traction transformer of AT supply power mode commonly used has the Scott Connection Traction Transformer, it is become by two single-phase transformer T and the M change is formed, T becomes and M becomes design separately, tap changer must satisfy specific (special) requirements separately, whole transformer device structure complexity, and secondary side outlet voltage is 55kV, electric substation must set out mouthful self coupling and become 55kV/27.5kV, and cost is higher; Can not satisfy AT supply power mode VX Connection Traction Transformer Z
21=Z
31, (3Z
21+ Z
31-Z
23-1The designing requirement of)/4＜0.45 Ω.Z wherein
21Be the impedance of seeing from the supply side winding after the first side winding short circuit, Z
31Be the impedance of seeing from the supply side winding after the first side winding short circuit, Z
23-1Be the impedance of seeing from supply side, two ends, supply side windings in series loop after the first side winding short circuit.
Summary of the invention
Technical problem to be solved by this invention provides a kind of single-phase traction transformer of the AT of being used for supply power mode high-speed electric railway.
The technical solution adopted for the present invention to solve the technical problems:
The iron core of transformer of the present invention adopts single-phase twin columns or single-phase four rod structure iron cores, and the described single-phase twin columns structural iron heart includes first principal post and second principal post; Described single-phase four rod structure iron cores include first principal post, second principal post, the first other post, the second other post;
Respectively be with three concentric type windings on described first principal post and second principal post, three concentric type windings are as follows with assembly relation unshakable in one's determination:
Three concentric type windings that are enclosed within on first principal post outwards are respectively winding T1, winding F1, winding H1 from the lining; Three concentric type windings that are enclosed within on second principal post outwards are respectively winding F2, winding T2, winding H2 from the lining; The annexation of above-mentioned each winding is: the winding T1 of first principal post connects with the winding T2 of second principal post, and the winding F1 of first principal post connects with the second winding F2; The winding H2 serial or parallel connection of the winding H1 of first principal post and second principal post;
The terminal A of described winding H1 and the terminal B of described winding H2 are the single-phase input of transformer; The terminal T of described winding T1 and the terminal N1 of described winding T2 are transformer-supplied side output; The terminal F of described winding F1 and the terminal N2 of described winding F2 are transformer supply side output; Described terminal N1 and described terminal N2 are earth terminal.
Good effect of the present invention is as follows: (1) the present invention can satisfy Z
21=Z
31And (3Z
21+ Z
31-Z
23-1)/4＜0.45 Ω can save the outlet self coupling and become 55kV/27.5kV, is applicable to that the high speed of 110kV, 220kV electric pressure AT supply power mode VX wiring, heavy haul railway main line use.And saved investment, reduced floor space.(2) adopt a playscript with stage directions transformer realized half VX/2 of VX wiring be, adopt again second half VX/2 that can realize the VX wiring be, in an electric substation, adopt two such transformers just to can be completely achieved the VX wiring.
Description of drawings
Fig. 1 is the structural representation of embodiments of the invention 1.
Fig. 2 is the structural representation of embodiments of the invention 2.
Fig. 3 is the structural representation of embodiments of the invention 3.
Fig. 4 is the structural representation of embodiments of the invention 4.
Embodiment
Embodiment 1: as shown in Figure 1, the iron core of present embodiment 1 adopts single-phase twin columns structure, respectively is with three concentric type windings on first principal post 1 and second principal post 2, and three concentric type windings that are enclosed within on first principal post 1 outwards are respectively winding T1, F1, H1 from the lining; Three concentric type windings that are enclosed within on second principal post 2 outwards are respectively winding F2, T2, H2 from the lining; The winding T1 of first principal post 1 connects with the winding T2 of second principal post 2, and the winding F1 of first principal post 1 connects with the winding F2 of second principal post 2, and the winding H1 of first principal post 1 connects with the winding H2 of second principal post 2; Terminal A, the B of described winding H1, H2 is transformer single-phase voltage 110kV or 220kV input, terminal T, the N1 of described winding T1, T2 is as transformer-supplied side 27.5kV output, terminal F, the N2 of described winding F1, F2 is as transformer supply side 27.5kV output, and terminal N1, N2 connect ground connection.
Embodiment 2: as shown in Figure 2, the iron core of present embodiment adopts single-phase twin columns structure, respectively is with three concentric type windings on first principal post 3 and second principal post 4, and three concentric type windings that are enclosed within on first principal post 3 outwards are respectively winding T1, F1, H1 from the lining; Three concentric type windings that are enclosed within on second principal post 4 outwards are respectively winding F2, T2, H2 from the lining; The winding T1 of first principal post 3 connects with the winding T2 of second principal post 4, the winding F1 of first principal post 3 connects with second principal post 4 and winding F2, the winding H1 of first principal post 3 is in parallel with the winding H2 of second post 4, terminal A, the B of described winding H1, H2 is transformer single-phase voltage 110kV or 220kV input, terminal T, the N1 of described winding T1, T2 is as transformer-supplied side 27.5kV output, terminal F, the N2 of described winding F1, F2 is as transformer supply side 27.5kV output, and terminal N1, N2 connect ground connection.
Embodiment 3: as shown in Figure 3, the iron core of present embodiment adopts single-phase four rod structures, i.e. first and second principal post 5,6 and first and second other post 7,8; On first principal post 5 and second principal post 6, respectively be with three concentric type windings, three concentric type windings that are enclosed within on first principal post 5 outwards are respectively winding T1, F1, H1 from the lining, three concentric type windings that are enclosed within on second principal post 6 outwards are respectively winding F2, T2, H2 from the lining; The winding T1 of first principal post 5 connects with the winding T2 of second principal post 6, and the winding F1 of first principal post 5 connects with the winding F2 of second principal post 6, and the winding H1 of first principal post 5 connects with the winding H2 of second principal post 6; Terminal A, the B of described winding H1, H2 is transformer single-phase voltage 110kV or 220kV input, terminal T, the N1 of described winding T1, T2 is as transformer-supplied side 27.5kV output, terminal F, the N2 of described winding F1, F2 is as transformer supply side 27.5kV output, and terminal N1, N2 connect ground connection.
Embodiment 4: as shown in Figure 4, the iron core of present embodiment adopts single-phase four rod structures, i.e. first and second principal post 9,10 and first and second other post 11,12; On first principal post 9 and second principal post 10, respectively be with three concentric type windings, three concentric type windings that are enclosed within on first principal post 9 outwards are respectively winding T1, F1, H1 from the lining, three concentric type windings that are enclosed within on second principal post 10 outwards are respectively winding F2, T2, H2 from the lining; The winding T1 of first principal post 9 connects with the winding T2 of second principal post 10, and the winding F1 of first principal post 9 connects with the winding F2 of second principal post 10, and the winding H1 of first principal post 9 is in parallel with the winding H2 of second principal post 10; Terminal A, the B of described winding H1, H2 is transformer single-phase voltage 110kV or 220kV input, terminal T, the N1 of described winding T1, T2 is as transformer-supplied side 27.5kV output, terminal F, the N2 of described winding F1, F2 is as transformer supply side 27.5kV output, and terminal N1, N2 connect ground connection.
Claims (1)
1, the single-phase traction transformer that is used for AT supply power mode high-speed electric railway is characterized in that the iron core of described transformer adopts single-phase twin columns or single-phase four rod structure iron cores, and the described single-phase twin columns structural iron heart includes first principal post and second principal post; Described single-phase four rod structure iron cores include first principal post, second principal post, the first other post, the second other post;
Respectively be with three concentric type windings on described first principal post and second principal post, three concentric type windings are as follows with assembly relation unshakable in one's determination:
Three concentric type windings that are enclosed within on first principal post outwards are respectively winding T1, winding F1, winding H1 from the lining; Three concentric type windings that are enclosed within on second principal post outwards are respectively winding F2, winding T2, winding H2 from the lining; The annexation of above-mentioned each winding is: the winding T1 of first principal post connects with the winding T2 of second principal post, and the winding F1 of first principal post connects with the second winding F2; The winding H2 serial or parallel connection of the winding H1 of first principal post and second principal post;
The terminal A of described winding H1 and the terminal B of described winding H2 are the single-phase input of transformer; The terminal T of described winding T1 and the terminal N1 of described winding T2 are transformer-supplied side output; The terminal F of described winding F1 and the terminal N2 of described winding F2 are transformer supply side output; Described terminal N1 and described terminal N2 are earth terminal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810055161A CN100587864C (en) | 2008-05-28 | 2008-05-28 | Single-phase traction transformer for AT power supply mode high speed electrified railroad |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810055161A CN100587864C (en) | 2008-05-28 | 2008-05-28 | Single-phase traction transformer for AT power supply mode high speed electrified railroad |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101354955A CN101354955A (en) | 2009-01-28 |
| CN100587864C true CN100587864C (en) | 2010-02-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200810055161A Active CN100587864C (en) | 2008-05-28 | 2008-05-28 | Single-phase traction transformer for AT power supply mode high speed electrified railroad |
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| CN (1) | CN100587864C (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012000181A1 (en) * | 2010-06-30 | 2012-01-05 | 特变电工沈阳变压器集团有限公司 | Single phase transformer for super capacity unclear power station |
| CN102024553B (en) * | 2010-08-19 | 2012-05-30 | 卧龙电气集团股份有限公司 | Four-low voltage winding layered box tractive transformer for AT power supply |
| CN101982860B (en) * | 2010-08-19 | 2012-07-18 | 卧龙电气集团股份有限公司 | Common box traction transformer with four low-voltage winding layers for AT power supply |
| CN102360845B (en) * | 2011-06-09 | 2013-06-19 | 常熟市森源电气科技有限公司 | Single-phase multi-tap isolation transformer |
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2008
- 2008-05-28 CN CN200810055161A patent/CN100587864C/en active Active
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| Publication number | Publication date |
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| CN101354955A (en) | 2009-01-28 |
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Owner name: BAODING TIANWEI BAOBIAN ELECTRIC CO., LTD. Free format text: FORMER OWNER: BAODING TIANWEI GROUP CO., LTD. Effective date: 20131211 |
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Effective date of registration: 20131211 Address after: 071056 West Road, Hebei, Baoding, No. 2222, No. Patentee after: Baoding Tianwei Baobian Electric Co., Ltd. Address before: 071056 Jin Di garden complex building, 128 chemical fiber road north, Baoding, Hebei Patentee before: Baoding Tianwei Group Co., Ltd. |