CN104575999A - Traction transformer for cophase power supply - Google Patents
Traction transformer for cophase power supply Download PDFInfo
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- CN104575999A CN104575999A CN201510016366.2A CN201510016366A CN104575999A CN 104575999 A CN104575999 A CN 104575999A CN 201510016366 A CN201510016366 A CN 201510016366A CN 104575999 A CN104575999 A CN 104575999A
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- transformer
- traction
- power supply
- cophase
- traction transformer
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Abstract
The invention provides a traction transformer for a cophase power system. The traction transformer is characterized by comprising a primary transformer and a teaser transformer which are arranged in the same oil tank and connected in an inequilateral Scott connection way. According to the combined type cophase supply supply scheme disclosed by the invention, the primary matching transformer can be cancelled, so that the floor space is reduced, the cost is saved, the system efficiency is improved. The traction transformer is a novel two-side feeding important part of a railway traction power supply system, so that sectional type power supply, measuring, governance negative sequence and phase slit at an transformer outlet are achieved, and the optical reactive compensation is realized.
Description
Technical field
The present invention relates to a kind of composite type cophase supply traction transformer, can be used in electric railway electric power system, belong to traction power supply transformer technology field.
Background technology
Mostly the traction transformer used in existing electric railway electric power system is YNd11, Vv, Vx, single-phase wiring, its deficiency existed is: traction power supply generally needs commutation, by the lasting performance causing power supply breakpoint to affect train traction power, influential system reliability.
Summary of the invention
The object of this invention is to provide a kind of composite type cophase supply traction transformer for tractive power supply system of new generation.
In order to achieve the above object, the invention provides a kind of cophase supply traction transformer, it is characterized in that, comprise main transformer and ladder plug transformer, main transformer and ladder plug transformer are located in same fuel tank, adopt inequilateral Scott connected mode to connect between main transformer and ladder plug transformer.
Preferably, described main transformer is different with the secondary voltage of ladder plug transformer, and capacity is not etc.
Compared with prior art, the invention has the beneficial effects as follows:
The present invention adopts composite type cophase supply scheme, one-level matching transformer can be save, reduce and take up an area, cost-saving, also system effectiveness can be improved, be the important component part of novel two-side feeding in railway traction power supply system, with the phase-splitting reaching Traction networks sectional power supply and observing and controlling, administer negative phase-sequence, cancel electric substation exit, realize optimum reactive power compensation.
Accompanying drawing explanation
Fig. 1 is cophase supply traction transformer structural representation.
Embodiment
Below in conjunction with specific embodiment, set forth the present invention further.Should be understood that these embodiments are only not used in for illustration of the present invention to limit the scope of the invention.In addition should be understood that those skilled in the art can make various changes or modifications the present invention, and these equivalent form of values fall within the application's appended claims limited range equally after the content of having read the present invention's instruction.
Embodiment
As shown in Figure 1, for cophase supply traction transformer structural representation, described cophase supply traction transformer, comprise main transformer 1 and ladder plug transformer 2, main transformer 1 and ladder plug transformer 2 are located in same fuel tank 4, adopt inequilateral Scott connected mode to connect between main transformer 1 and ladder plug transformer 2.Described main transformer 1 is different with the secondary voltage of ladder plug transformer 2, and capacity is not etc.
The making of cophase supply traction transformer of the present invention mainly comprises fabrication of iron core, pitch of the laps makes, lead-in wire makes, device body assembles and the assembling of traction transformer entirety.Described main transformer 1 is made up of iron core, low-voltage coil, high pressure interior loop, high pressure exterior loop, high pressure voltage regulation coil, lead-in wire, its making step comprise by silicon steel sheet shear after closed assembly become iron core, by low-voltage coil, high pressure interior loop, high pressure exterior loop and high pressure voltage regulation coil successively around on iron core, mutually isolated with insulating part between each coil, each coil adopts connection in series-parallel to connect, and is assembled into an independent main transformer 1 by fastener.Described ladder plug transformer 2 is made up of iron core, low-voltage coil, high-tension coil, high pressure voltage regulation coil, lead-in wire.Its making step comprise silicon steel sheet is sheared after closed assembly become iron core, be contained on iron core with insulating part separation sleeve successively by each coil, each coil adopts connection in series-parallel connection, is assembled into an independent ladder plug transformer 2 by fastener.
By the high pressure interior loop of described main transformer 1, high pressure exterior loop adopts inequilateral Scott connected mode to be connected with the high-tension coil of ladder plug transformer 2, main transformer 1 and ladder plug transformer 2 are fixed in shared fuel tank 4 by upper and lower positioner, main transformer 1 is connected with HV Terminal with the high-tension coil of ladder plug transformer 2, main transformer 1 is connected with low-voltage terminal with the low-voltage coil of ladder plug transformer 2, the transformer oil 7 of insulation is full of fuel tank 4, at the outside of HV Terminal suit bushing 5, the outside suit low-tension bushing 6 of low-voltage terminal, by bushing 5, low-tension bushing 6 is connected to rail traction for electrical network, the three-phase electricity of electric power system is converted to two single-phase electricity needed for rail traction.
Claims (2)
1. a cophase supply traction transformer, it is characterized in that, comprise main transformer (1) and ladder plug transformer (2), main transformer (1) and ladder plug transformer (2) are located in same fuel tank (4), adopt inequilateral Scott connected mode to connect between main transformer (1) and ladder plug transformer (2).
2. cophase supply traction transformer as claimed in claim 1, is characterized in that, the secondary voltage that transformer (2) filled in by described main transformer (1) and ladder is different, and capacity is not etc.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510016366.2A CN104575999A (en) | 2015-01-13 | 2015-01-13 | Traction transformer for cophase power supply |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510016366.2A CN104575999A (en) | 2015-01-13 | 2015-01-13 | Traction transformer for cophase power supply |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104575999A true CN104575999A (en) | 2015-04-29 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510016366.2A Pending CN104575999A (en) | 2015-01-13 | 2015-01-13 | Traction transformer for cophase power supply |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104575999A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109616297A (en) * | 2019-01-17 | 2019-04-12 | 顺特电气设备有限公司 | A kind of dry-type transformer for railway cophase supply trailer system |
| CN116111608A (en) * | 2023-04-13 | 2023-05-12 | 西南交通大学 | In-phase power supply device, system, reactive compensation method, device and electronic equipment |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61204919A (en) * | 1985-03-08 | 1986-09-11 | Toshiba Corp | Three winding scott connection transformer |
| CN1529331A (en) * | 2003-10-17 | 2004-09-15 | 北京交通大学 | Secondary side central-tapped scott wiring transformer |
| CN2874736Y (en) * | 2006-04-04 | 2007-02-28 | 云南变压器电气股份有限公司 | Scott transformer for changing three phase into two phase |
| CN101982860A (en) * | 2010-08-19 | 2011-03-02 | 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 |
| CN102436918A (en) * | 2011-12-28 | 2012-05-02 | 卧龙电气集团股份有限公司 | Traction transformer for Scott wiring |
| CN204614644U (en) * | 2015-01-13 | 2015-09-02 | 正泰电气股份有限公司 | Cophase supply traction transformer |
-
2015
- 2015-01-13 CN CN201510016366.2A patent/CN104575999A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61204919A (en) * | 1985-03-08 | 1986-09-11 | Toshiba Corp | Three winding scott connection transformer |
| CN1529331A (en) * | 2003-10-17 | 2004-09-15 | 北京交通大学 | Secondary side central-tapped scott wiring transformer |
| CN2874736Y (en) * | 2006-04-04 | 2007-02-28 | 云南变压器电气股份有限公司 | Scott transformer for changing three phase into two phase |
| CN101982860A (en) * | 2010-08-19 | 2011-03-02 | 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 |
| CN102436918A (en) * | 2011-12-28 | 2012-05-02 | 卧龙电气集团股份有限公司 | Traction transformer for Scott wiring |
| CN204614644U (en) * | 2015-01-13 | 2015-09-02 | 正泰电气股份有限公司 | Cophase supply traction transformer |
Non-Patent Citations (1)
| Title |
|---|
| 李群湛: "《牵引变电所供电分析及综合补偿技术》", 31 January 2006, 中国铁道出版社 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109616297A (en) * | 2019-01-17 | 2019-04-12 | 顺特电气设备有限公司 | A kind of dry-type transformer for railway cophase supply trailer system |
| CN109616297B (en) * | 2019-01-17 | 2021-05-04 | 顺特电气设备有限公司 | Dry-type transformer for railway in-phase power supply traction system |
| CN116111608A (en) * | 2023-04-13 | 2023-05-12 | 西南交通大学 | In-phase power supply device, system, reactive compensation method, device and electronic equipment |
| CN116111608B (en) * | 2023-04-13 | 2023-07-18 | 西南交通大学 | In-phase power supply device, system, reactive compensation method, device and electronic equipment |
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| PB01 | Publication | ||
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| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150429 |