CN202373433U - Single-phase traction transformer for high-speed electrified railway employing auto-transformer (AT) power supply mode - Google Patents
Single-phase traction transformer for high-speed electrified railway employing auto-transformer (AT) power supply mode Download PDFInfo
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- CN202373433U CN202373433U CN2011205579544U CN201120557954U CN202373433U CN 202373433 U CN202373433 U CN 202373433U CN 2011205579544 U CN2011205579544 U CN 2011205579544U CN 201120557954 U CN201120557954 U CN 201120557954U CN 202373433 U CN202373433 U CN 202373433U
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Abstract
The utility model discloses a single-phase traction transformer for a high-speed electrified railway employing an auto-transformer (AT) power supply mode, and relates to a traction transformer. A common traction transformer for AT power supply consists of two single-phase traction transformers, namely a T transformer and an M transformer, and the two transformers are required to be independently designed, so that the common traction transformer has a complex structure, and is difficultly manufactured, and design requirements are difficult to meet. The single-phase traction transformer is characterized in that: a core has a single-phase two-column structure; five concentric winding layers are sequentially sleeved on each core column from inside to outside; a first winding, a second winding, a third winding and a fourth winding on a power supply side are connected in series to form a power supply side output end; a third winding, a fourth winding, a first winding and a second winding on a feed side are connected in series to form a feed signal output end; and a first winding and a second winding on a primary side are connected in series to form an A-phase input end and a B-phase input end. The T and M single-phase traction transformers are integrally designed into one traction transformer, so that the single-phase traction transformer is simple in structure, the design requirements are met, and design and production cost is lowered.
Description
Technical field
The utility model relates to a kind of traction transformer.
Background technology
At present, the traction transformer of the AT supply power mode that China is commonly used has Scott Connection Traction Transformer and VX Connection Traction Transformer, and the Scott transformer is become by T and two single-phase traction transformers of M change are formed; T becomes and the M change needs design separately; Whole transformer device structure is complicated, and manufacture difficulty is bigger, and secondary side outlet voltage is 55kV; Electric substation need set out a mouthful autotransformer 55/27.5kV, 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＜0.3 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.
The utility model content
The technical problem that the utility model will solve and the technical assignment of proposition are that the prior art scheme is improved and improved; A kind of single-phase traction transformer of the AT of being used for supply power mode high-speed electric railway is provided, to reach easy design, simple in structure, purpose that cost is low.For this reason, the utility model is taked following technical scheme.
Comprise that iron core and concentric locking collar are connected to the winding of iron core; It is characterized in that: described iron core is single-phase two rod structure iron cores; Comprise first iron core column, second iron core column; Said iron core column from-inner-to-outer socket five concentric winding layers are respectively first winding layers, second winding layers, tertiary winding layer, the 4th winding layers, the 5th winding layers; Wherein first winding layers of first iron core column is supply side first winding, and second winding layers is supply side second winding, and tertiary winding layer is the supply side tertiary winding, and the 4th winding layers is supply side the 4th winding, and the 5th winding layers is primary side first winding; First winding layers of second iron core column is supply side first winding, and second winding layers is supply side second winding, and tertiary winding layer is the supply side tertiary winding, and the 4th winding layers is supply side the 4th winding, and the 5th winding layers is primary side second winding; Supply side first winding, supply side second winding, the supply side tertiary winding, supply side the 4th windings in series form the supply side output; The supply side tertiary winding, supply side the 4th winding, supply side first winding, supply side second windings in series form the supply side output, and primary side first winding forms A input and B phase input mutually with primary side second windings in series.For the capacity smaller transformer; T, F winding adopt the series connection that crosses one another of four windings; The mode of two posts series connection can satisfy: Z21=Z31, and (3Z21+Z31-Z23-1)/4＜0.3 impedance requirement of Ω; Can save the outlet self coupling and become 55kV/27.5kV, be applicable to that the high speed of 110kV, 220kV electric pressure AT supply power mode VX wiring, heavy haul railway use; Adopt the mode of four windings intersection series connection, avoided the wire bonds problem of split winding, winding technique is more prone to, shortened the manufacturing cycle.
As the further of technique scheme improved and replenish, the utility model also comprises following additional technical feature.
The upper end of supply side first winding is the supply side output; Its lower end is connected with the lower end of supply side second winding; The upper end of supply side second winding is connected with the upper end of the supply side tertiary winding; The lower end of the supply side tertiary winding is connected with the lower end of supply side the 4th winding, and the upper end of supply side the 4th winding is an earth terminal; The upper end of the supply side tertiary winding is the supply side output; Its lower end is connected with the lower end of supply side the 4th winding; The upper end of supply side the 4th winding is connected with the upper end of supply side first winding; The lower end of supply side first winding is connected with the lower end of supply side second winding, and the upper end of supply side second winding is an earth terminal.
The upper end of primary side first winding is an A phase input, and its lower end is connected with the lower end of primary side second winding, and the upper end of primary side second winding is a B phase input.
Described first, second iron core column is located in the single-phase traction transformer casing.Employing branch mailbox mode, the transformer monnolithic case is little, in light weight, is convenient to transportation and installs with on-the-spot, and two such transformers of employing just can external realization VX wiring in an electric substation.
Beneficial effect:
⑴ for the capacity smaller transformer, and T, F winding adopt the series connection that crosses one another of four windings, and the mode of two posts series connection can realize Z easily
21=Z
31, and (3Z
21+ Z
31-Z
23-1The impedance requirement of)/4＜0.3 Ω.
⑵ adopt the mode of four windings intersection series connection, avoided the wire bonds problem of split winding, and winding technique is more prone to, and shortened the manufacturing cycle.
⑶ the utility model can satisfy Z
21=Z
31, and (3Z
21+ Z
31-Z
23-1)/4＜0.3 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 use.
⑷ employing branch mailbox mode, the transformer monnolithic case is little, in light weight, is convenient to transportation and installs with on-the-spot, and two such transformers of employing just can external realization VX wiring in an electric substation.
Description of drawings
Fig. 1 is the utility model structural representation.
1-first iron core column; 2-second iron core column; T
A1-supply side first winding; T
X2-supply side second winding; T
A3-supply side the tertiary winding; T
X4-supply side the 4th winding; F
X1-supply side first winding; F
A2-supply side second winding; F
X3-supply side the tertiary winding; F
A4-supply side the 4th winding; H
a-primary side first winding; H
x-primary side second winding; T-supply side output; F-supply side output; N-earth terminal.
Embodiment
Below in conjunction with Figure of description the technical scheme of the utility model is done further detailed description.
The transformer core of the utility model adopts single-phase two rod structure iron cores; Comprise that iron core column group and concentric locking collar are connected to the winding of iron core column; Described iron core column group comprises first iron core column 1, second iron core column 2; Said iron core column from-inner-to-outer socket five concentric winding layers are respectively first winding layers, second winding layers, tertiary winding layer, the 4th winding layers, the 5th winding layers; Wherein first winding layers of first iron core column 1 is the supply side first winding Ta1; Second winding layers is the supply side second winding Fa2; Tertiary winding layer is supply side tertiary winding Ta3, and the 4th winding layers is supply side the 4th winding Fa4, and the 5th winding layers is the primary side first winding Ha; First winding layers of second iron core column 2 is the supply side first winding Fx1; Second winding layers is the supply side second winding Tx2; Tertiary winding layer is supply side tertiary winding Fx3, and the 4th winding layers is supply side the 4th winding Tx4, and the 5th winding layers is the primary side second winding Hx; The supply side first winding Ta1, the supply side second winding Tx2, supply side tertiary winding Ta3, supply side the 4th winding Tx4 series connection form supply side output T; Supply side tertiary winding Fx3, supply side the 4th winding Fa4, the supply side first winding Fx1, supply side second winding Fa2 series connection form supply side output F, and the primary side first winding Ha forms A input and B phase input mutually with primary side second winding Hx series connection.The upper end of the supply side first winding Ta1 is supply side output T; Its lower end is connected with the lower end of the supply side second winding Tx2; The upper end of the supply side second winding Tx2 is connected with the upper end of supply side tertiary winding Ta3; The lower end of supply side tertiary winding Ta3 is connected with the lower end of supply side the 4th winding Tx4, and the upper end of supply side the 4th winding Tx4 is earth terminal N; The upper end of supply side tertiary winding Fx3 is supply side output F; Its lower end is connected with the lower end of supply side the 4th winding Fa4; The upper end of supply side the 4th winding Fa4 is connected with the upper end of the supply side first winding Fx1; The lower end of the supply side first winding Fx1 is connected with the lower end of the supply side second winding Fa2, and the upper end of the supply side second winding Fa2 is earth terminal N.The upper end of the primary side first winding Ha is an A phase input, and its lower end is connected with the lower end of the primary side second winding Hx, and the upper end of the primary side second winding Hx is a B phase input.First, second iron core column 1,2 is located in the single-phase traction transformer casing.
Claims (4)
1. the single-phase traction transformer that is used for AT supply power mode high-speed electric railway; Comprise that iron core and concentric locking collar are connected to the winding of iron core; It is characterized in that: described iron core is single-phase two rod structure iron cores; Comprise first iron core column (1), second iron core column (2), said iron core column from-inner-to-outer socket five concentric winding layers are respectively first winding layers, second winding layers, tertiary winding layer, the 4th winding layers, the 5th winding layers; Wherein first winding layers of first iron core column (1) is supply side first winding (Ta1); Second winding layers is supply side second winding (Fa2); Tertiary winding layer is the supply side tertiary winding (Ta3); The 4th winding layers is supply side the 4th winding (Fa4), and the 5th winding layers is primary side first winding (Ha); First winding layers of second iron core column (2) is supply side first winding (Fx1); Second winding layers is supply side second winding (Tx2); Tertiary winding layer is the supply side tertiary winding (Fx3); The 4th winding layers is supply side the 4th winding (Tx4), and the 5th winding layers is primary side second winding (Hx); Supply side first winding (Ta1), supply side second winding (Tx2), the supply side tertiary winding (Ta3), supply side the 4th winding (Tx4) series connection form supply side output (T); The supply side tertiary winding (Fx3), supply side the 4th winding (Fa4), supply side first winding (Fx1), supply side second winding (Fa2) series connection form supply side output (F), and primary side first winding (Ha) forms A input and B phase input mutually with primary side second winding (Hx) series connection.
2. the single-phase traction transformer that is used for AT supply power mode high-speed electric railway according to claim 1; It is characterized in that: the upper end of supply side first winding (Ta1) is supply side output (T); Its lower end is connected with the lower end of supply side second winding (Tx2); The upper end of supply side second winding (Tx2) is connected with the upper end of the supply side tertiary winding (Ta3); The lower end of the supply side tertiary winding (Ta3) is connected with the lower end of supply side the 4th winding (Tx4), and the upper end of supply side the 4th winding (Tx4) is earth terminal (N); The upper end of the supply side tertiary winding (Fx3) is supply side output (F); Its lower end is connected with the lower end of supply side the 4th winding (Fa4); The upper end of supply side the 4th winding (Fa4) is connected with the upper end of supply side first winding (Fx1); The lower end of supply side first winding (Fx1) is connected with the lower end of supply side second winding (Fa2), and the upper end of supply side second winding (Fa2) is earth terminal (N).
3. the single-phase traction transformer that is used for AT supply power mode high-speed electric railway according to claim 2; It is characterized in that: the upper end of primary side first winding (Ha) is an A phase input; Its lower end is connected with the lower end of primary side second winding (Hx), and the upper end of primary side second winding (Hx) is a B phase input.
4. according to the described single-phase traction transformer that is used for AT supply power mode high-speed electric railway of the arbitrary claim of claim 1-3, it is characterized in that: described first, second iron core column (1,2) is located in the single-phase traction transformer casing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205579544U CN202373433U (en) | 2011-12-28 | 2011-12-28 | Single-phase traction transformer for high-speed electrified railway employing auto-transformer (AT) power supply mode |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205579544U CN202373433U (en) | 2011-12-28 | 2011-12-28 | Single-phase traction transformer for high-speed electrified railway employing auto-transformer (AT) power supply mode |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202373433U true CN202373433U (en) | 2012-08-08 |
Family
ID=46597127
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011205579544U Expired - Lifetime CN202373433U (en) | 2011-12-28 | 2011-12-28 | Single-phase traction transformer for high-speed electrified railway employing auto-transformer (AT) power supply mode |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202373433U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102436919A (en) * | 2011-12-28 | 2012-05-02 | 卧龙电气集团股份有限公司 | Single-phase traction transformer for high-speed electrified railway in AT (auto-transformer) power supply way |
| CN105448505A (en) * | 2015-12-30 | 2016-03-30 | 卧龙电气集团股份有限公司 | V/X wiring wound core traction transformer |
-
2011
- 2011-12-28 CN CN2011205579544U patent/CN202373433U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102436919A (en) * | 2011-12-28 | 2012-05-02 | 卧龙电气集团股份有限公司 | Single-phase traction transformer for high-speed electrified railway in AT (auto-transformer) power supply way |
| CN105448505A (en) * | 2015-12-30 | 2016-03-30 | 卧龙电气集团股份有限公司 | V/X wiring wound core traction transformer |
| CN105448505B (en) * | 2015-12-30 | 2018-06-26 | 卧龙电气集团股份有限公司 | V/X wiring rewinding material tractive transformers |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20190419 Address after: 750000 No. 221 Xingyuan Road, Xingqing District, Yinchuan City, Ningxia Hui Autonomous Region Patentee after: Yinchuan Wolong Transformer Co., Ltd. Address before: 312300 No. 1801 Renmin West Road, Shangyu City, Shaoxing City, Zhejiang Province Co-patentee before: Yinchuan Wolong Transformer Co., Ltd. Patentee before: Wolong Electric Group Co., Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120808 |