CN2884466Y - Body Structure of Single-phase Railway Traction Transformer - Google Patents
Body Structure of Single-phase Railway Traction Transformer Download PDFInfo
- Publication number
- CN2884466Y CN2884466Y CN 200620102258 CN200620102258U CN2884466Y CN 2884466 Y CN2884466 Y CN 2884466Y CN 200620102258 CN200620102258 CN 200620102258 CN 200620102258 U CN200620102258 U CN 200620102258U CN 2884466 Y CN2884466 Y CN 2884466Y
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- voltage coil
- low
- head end
- tension coil
- circle
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- Expired - Fee Related
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- 238000009413 insulation Methods 0.000 claims abstract description 10
- 239000011229 interlayer Substances 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract 4
- 229910052742 iron Inorganic materials 0.000 abstract 2
- 230000000694 effects Effects 0.000 description 3
- 230000005684 electric field Effects 0.000 description 3
- 238000004804 winding Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 239000011087 paperboard Substances 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005755 formation reaction Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
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Abstract
The utility model provides a ware body structure of single-phase railway traction transformer, belong to the manufacturing technical field of transformer, including high-voltage coil (1) of band iron yoke insulation (8), high-voltage coil head end (3), high-voltage coil end (4) and end circle (6), take low-voltage coil head end, low-voltage coil end and end circle low-voltage coil (2), be equipped with electrostatic ring (7) between high-voltage coil head end (3), high-voltage coil end (4) and end circle (6), low-voltage coil head end, also be equipped with electrostatic ring between low-voltage coil end and the end circle, high-voltage coil head end (3), high-voltage coil end (4) and iron yoke insulation (8) layer-to-layer symmetry set up three corner ring (9), the upper portion of ware body still is equipped with clamp plate (12) of band pressing nail (11). The utility model relates to a rationally, have reliable dielectric strength, overload and anti short circuit ability, can satisfy railway traction line operation requirement.
Description
Technical field
The utility model relates to a kind of machine body structure of single-phase railway traction transformer, belongs to the manufacturing technology field of transformer.
Background technology
China railways traction circuit is 27.5kV to the voltage of track, is generally 110kV or 220kV for the supply voltage of the three-phase electrical power system of traction line powering.At present, the employed traction transformer of China railways traction circuit mostly is the 110kV electric pressure greatly, and the line loss of 110kV level traction transformer power transformation operation is very big, and operating cost is also very high.Along with the continuous development of China's electric railway, the 220kV electric power system has more stability and reliability, and single phase power supply more meets railway electricity consumption characteristics, and protection is simple, input is little, can effectively reduce railway operating expense.Therefore, the single-phase railway traction transformer of 220kV level arises at the historic moment.But because the defective on the structural design, dielectric strength, overload and the anti-short circuit capability of the existing single-phase railway traction transformer of 220kV level awaits further to improve.
Summary of the invention
It is a kind of reasonable in design that the purpose of this utility model is to provide, and has reliable dielectric strength, overload and anti-short circuit capability, can satisfy the machine body structure of the single-phase railway traction transformer of rail traction circuit instructions for use.
The utility model is the machine body structure of single-phase railway traction transformer, the high-tension coil that comprises band core insulation, high-tension coil head end, high-tension coil end and end circle, band low-voltage coil head end, the low-voltage coil that low-voltage coil is terminal and end encloses, it is characterized in that between high-tension coil head end, high-tension coil end and end circle, being provided with electrostatic ring, also be provided with electrostatic ring between low-voltage coil head end, low-voltage coil end and the end circle, high-tension coil head end, the terminal interlayer with core insulation of high-tension coil are symmetrical arranged three road square rings.
The top of described device body also can be provided with the pressing plate that band is pressed nail.
Described high-tension coil head end can adopt is entangled with the formula coiling, and other line segment adopts the continous way coiling.
The utility model compared with prior art has following outstanding advantage and good effect:
1, anti-short circuit capability is strong, promptly applies rated voltage at primary side, under the condition of secondary side dead short circuit, under the effect of short circuit current, in 2 seconds and the secondary pulse in 3 seconds, can not cause any heat and mechanical damage;
2, the device body adopts spring pressed stud to compress, and pressing plate is made of certain thickness laminated paper board, makes the device body axially closely tight, can improve the anti-short circuit capability of transformer body.
Description of drawings
Accompanying drawing is an overall structure schematic diagram of the present utility model.
Among the figure: 1 is high-tension coil, and 2 is low-voltage coil, and 3 is the high-tension coil head end, and 4 is the high-tension coil end, and 5 lift one's head for the tap section, and 6 are the end circle, and 7 be electrostatic ring, and 8 be core insulation, and 9 be square ring, and 10 is the end outlet, and 11 is that pressure is followed closely, and 12 is pressing plate.
Embodiment
The utility model mainly by band core insulation 8, tap section lift one's head 5, the high-tension coil 1 of end outlet 10, high-tension coil head end 3, high-tension coil terminal 4 and end circle 6, band low-voltage coil head end, low-voltage coil is terminal and the formations such as low-voltage coil 2 of end circle.
The device body adopts all insulation design.High-tension coil 1, low-voltage coil 2 are connected respectively and are placed on two core limbs, can obviously reduce winding temperature rise, operation safely and reliably under the overload situation.For increasing the electric capacity of end winding, the voltage that improves winding under the surge voltage effect distributes, and high-tension coil head end 3 adopts is entangled with formula or inner screen type coiling, and other line segment adopts the continous way coiling.
Between high-tension coil head end 3 and high-tension coil terminal 4 and end circle 6, be placed with electrostatic ring 7, also be placed with electrostatic ring between low-voltage coil head end and low-voltage coil end and the end circle, purpose is to reduce electrostatic ring metal surface electric field strength, reduce the maximum of high-tension coil, low-voltage coil both ends electric field strength, evenly the end Electric Field Distribution.Place three road square rings 9 in high-tension coil head end, high-tension coil end and core insulation 8 interlayers symmetry, can increase the creepage distance of high-tension coil.The device body adopts spring pressed stud 11 to compress, and the certain thickness laminated paper board of pressing plate 12 usefulness is made, and makes the device body axially closely tight, can improve the anti-short circuit capability of transformer body.
Claims (3)
1, a kind of machine body structure of single-phase railway traction transformer, comprise band core insulation (8), high-tension coil head end (3), the high-tension coil (1) of high-tension coil end (4) and end circle (6), band low-voltage coil head end, the low-voltage coil (2) that low-voltage coil is terminal and end encloses, it is characterized in that in high-tension coil head end (3), be provided with electrostatic ring (7) between high-tension coil end (4) and the end circle (6), the low-voltage coil head end, also be provided with electrostatic ring, high-tension coil head end (3) between low-voltage coil end and the end circle, high-tension coil end (4) is symmetrical arranged three road square rings (9) with the interlayer of core insulation (8).
2,, it is characterized in that the top of described device body also is provided with the pressing plate (12) that band is pressed nail (11) by the machine body structure of the described single-phase railway traction transformer of claim 1.
3,, it is characterized in that described high-tension coil head end (3) adopts to be entangled with the formula coiling that other line segment adopts continous way coiling by the machine body structure of the described single-phase railway traction transformer of claim 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620102258 CN2884466Y (en) | 2006-04-03 | 2006-04-03 | Body Structure of Single-phase Railway Traction Transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620102258 CN2884466Y (en) | 2006-04-03 | 2006-04-03 | Body Structure of Single-phase Railway Traction Transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2884466Y true CN2884466Y (en) | 2007-03-28 |
Family
ID=37957519
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620102258 Expired - Fee Related CN2884466Y (en) | 2006-04-03 | 2006-04-03 | Body Structure of Single-phase Railway Traction Transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2884466Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101968992A (en) * | 2010-09-09 | 2011-02-09 | 山东达驰电气有限公司 | Railway traction transformer |
| CN101236824B (en) * | 2007-12-20 | 2011-05-04 | 卧龙电气集团股份有限公司 | Body structure of single-phase traction transformer |
| CN102360828A (en) * | 2011-08-04 | 2012-02-22 | 保定天威集团有限公司 | 220kV-grade Vx connection traction transformer body structure |
-
2006
- 2006-04-03 CN CN 200620102258 patent/CN2884466Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101236824B (en) * | 2007-12-20 | 2011-05-04 | 卧龙电气集团股份有限公司 | Body structure of single-phase traction transformer |
| CN101968992A (en) * | 2010-09-09 | 2011-02-09 | 山东达驰电气有限公司 | Railway traction transformer |
| CN101968992B (en) * | 2010-09-09 | 2012-05-23 | 山东达驰电气有限公司 | Railway traction transformer |
| CN102360828A (en) * | 2011-08-04 | 2012-02-22 | 保定天威集团有限公司 | 220kV-grade Vx connection traction transformer body structure |
| CN102360828B (en) * | 2011-08-04 | 2013-06-19 | 保定天威集团有限公司 | 220kV-grade Vx connection traction transformer body structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070328 |