CN201816475U - Alternating-current compact transmission system for electrified railway - Google Patents
Alternating-current compact transmission system for electrified railway Download PDFInfo
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- CN201816475U CN201816475U CN2010202802837U CN201020280283U CN201816475U CN 201816475 U CN201816475 U CN 201816475U CN 2010202802837 U CN2010202802837 U CN 2010202802837U CN 201020280283 U CN201020280283 U CN 201020280283U CN 201816475 U CN201816475 U CN 201816475U
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- 230000005540 biological transmission Effects 0.000 title claims abstract description 35
- 125000006850 spacer group Chemical group 0.000 claims abstract description 26
- 230000016507 interphase Effects 0.000 claims abstract description 22
- 238000009826 distribution Methods 0.000 claims abstract description 15
- 239000000654 additive Substances 0.000 claims description 23
- 230000000996 additive effect Effects 0.000 claims description 23
- 238000002309 gasification Methods 0.000 claims description 23
- 150000001875 compounds Chemical class 0.000 claims description 19
- 230000005611 electricity Effects 0.000 claims description 16
- 241000272165 Charadriidae Species 0.000 claims description 11
- 230000009466 transformation Effects 0.000 claims description 8
- 230000001681 protective effect Effects 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 6
- 230000008901 benefit Effects 0.000 abstract description 3
- 238000009413 insulation Methods 0.000 abstract description 3
- 239000002131 composite material Substances 0.000 abstract 2
- 239000004020 conductor Substances 0.000 description 17
- 238000005516 engineering process Methods 0.000 description 9
- 230000006835 compression Effects 0.000 description 7
- 238000007906 compression Methods 0.000 description 7
- 230000000694 effects Effects 0.000 description 6
- 230000008859 change Effects 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 3
- 238000010276 construction Methods 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 230000018109 developmental process Effects 0.000 description 2
- 201000010099 disease Diseases 0.000 description 2
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000003801 milling Methods 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 230000037361 pathway Effects 0.000 description 1
- 230000011218 segmentation Effects 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
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Abstract
The utility model provides an alternating-current compact transmission system for an electrified railway. The alternating-current compact transmission system comprises an overhead additional lead transmission connecting structure of a traction electric network of the electrified railway and an overhead distribution line connecting structure of a traction substation, wherein composite insulation interphase spacer rods of the electrified railway are mounted among overhead additional leads of the transmission connecting structure of the traction electric network, and composite insulation interphase spacer rods are mounted among the overhead distribution lines of the traction substation connecting structure. The alternating-current compact transmission system has the advantages of controlling discharge failure due to wobbling of overhead leads of the electrified railway through the simplest and most reliable methods, and fixing distance among different overhead leads. On the premise of keeping pillar height and capacity of a contact network of existing lines constant, the alternating-current compact transmission system is applied to the electrified railway widely, thereby saving investment, reducing transitional engineering, saving energy, being environment-friendly, reducing occupation of land resources, increasing power supply safety and electric transmission capacity and becoming effective quickly.
Description
Technical field
The utility model relates to the compact transmission system of a kind of alternating current gasification railway.
Background technology
At present, the built on stilts compact technology of transmission of electricity of known interchange is to adopt to dwindle phase spacing, optimize arrangements of conductors, increase phase oidiospore lead radical and change method such as circuit geometry, thereby the novel technology of transmission of electricity of its ability to transmit electricity is taken up an area of and improved in compression circuit corridor.Its principle is to increase the oidiospore lead radical of same phase conductor and increase distance between the sub-conductor to reduce self-impedance, reduces distance between the different phase conductors increasing transimpedance, thus reduce exchange built on stilts lines impedance to improve its ability to transmit electricity.
Known main line alternating current gasification railway is actually a kind of special interchange overhead transmission line, and traction net power supply mode commonly used has direct supply 1 * 27.5kV mode and the AT power supply 2 * 27.5kV mode of taking back streamline.Its traction net additive wire is homophase or the dried up flat raft row of different segmentation two lead hitch point spacings 2400mm not, vertical arrangement 2000mm; 27.5kV the distance between supply line or line feeder, positive feeder (AF) and return wire, aerial earth wire, the protective wire is generally 2000mm.In fact because indivedual worker's space of pointss are restricted, or the wire jumper of connecting device and other additional wire, shoulder frame, pillar insulation gap are little, flashover can occur and discharge and cause the phenomenon of fault under wind effect.When direct feeding system with return wire formula traction net expands energy, utilize existing catenary mast to set up line feeder or change the AT power supply mode into and set up AT-feeder (AF line), newly-increased lead is big to the load of existing catenary mast if the shoulder frame is increased in employing, not attractive in appearance and poor stability, return wire and line feeder or positive feeder (AF) spacing are adjusted to 2000mm, and then quantities is big, big to the transportation influence, impedance of traction electric network is also big.In the occasion of some supply line pathway difficulty, need to adopt the method for many times supply line of wiring on the same tower, compression supply line takes up an area of in the corridor.The T line of traction power transformation overhead distribution line is the lead that connects contact system, and the N line is the lead that connects the transformer grounding terminal, and the F line is the lead that connects AT power supply mode AF line.
Summary of the invention
At structural deficiency in the prior art, the utility model is transplanted electric system " compact technology of transmission of electricity " science and is referred to alternating current gasification railway, and provide a kind of alternating current gasification railway compact transmission system, be beneficial to reach with the easiest, failure-free method improvement existing electrified railway aerial wire and wave the disease that causes discharge fault because of wind; Existing electrified railway solves part increase-volume problem under catenary mast height, capacity unmodified situation; Reduce transition project, energy-saving and environmental protection, reduce the land occupation resource, improve Supply Security and power delivery ability.Can reduce floor area for newly-built traction power supply facility, can make full use of same court and not enlarge the piece of smooth land, improve construction speed, engineering be reached as early as possible produce and take effect for reconstruction traction power supply facility, especially direct-furnish changing AT mode.
For achieving the above object, the technical solution adopted in the utility model provides the compact transmission system of alternating current gasification railway, this system includes the built on stilts additive wire transmission of electricity connection structure of electric railway traction net and the overhead distribution wire connection structure of traction power transformation, wherein: between the built on stilts additive wire of described traction net transmission of electricity connection structure, electrified railway compound inslation inter-phase spacer is installed, electrified railway compound inslation inter-phase spacer is installed between the overhead distribution line of described traction power transformation connection structure.
Effect of the present utility model is that the compact transmission system of this alternating current gasification railway can be waved the disease that causes discharge fault because of wind so that administer the existing electrified railway aerial wire with the easiest, failure-free method, has fixed the not distance between the homophase aerial wire.Among the design of electrified railway, existing line by compact design, solves part increase-volume problem under catenary mast height, capacity unmodified situation.This technology is widely used in electrified railway, can reach the purpose of saving investment, minimizing transition project, energy-saving and environmental protection, minimizing land occupation resource, raising Supply Security, improving power delivery ability, instant effect.This novel situation that is applicable to the current rail great development has great importance to the technical merit that promotes electrified railway.
Description of drawings
Fig. 1 is an application 25kV additive wire spacer bar scheme drawing of the present utility model;
Fig. 2 is that AT mode of the present utility model is used 55kV spacer bar scheme drawing;
Fig. 3 is of the present utility model with establishing the spacer bar scheme drawing between many times supply line spans of tower central conductor;
Fig. 4 installs 25kV additive wire spacer bar scheme drawing between tunnel portal of the present utility model place additive wire.
Be alternating current gasification railway additive wire to be installed with 25kV or 55kV compound inslation inter-phase spacer scheme drawing at span centre between the T line, F line, N line of traction power transformation overhead distribution line as Fig. 5.
Among the figure: 1, compound inslation inter-phase spacer
The specific embodiment
Reaching embodiment in conjunction with the accompanying drawings is illustrated the compact transmission system structure of alternating current gasification railway of the present utility model.
The compact transmission system structure of alternating current of the present utility model gasification railway is that the alternating current railway additive wire that gasifies is installed in built on stilts supply line, line feeder, positive feeder, return wire, aerial earth wire etc. with 25kV, 55kV compound inslation inter-phase spacer and draws between the net additive wires, and between the T line of traction power transformation overhead distribution line, F line, N line, compression also keeps distance between the different phase conductors, and forms the compact transmission system of alternating current gasification railway.
The built on stilts additive wire of described traction net transmission of electricity connection structure comprises supply line, line feeder, positive feeder, return wire, protective wire, aerial earth wire, and the compound inslation inter-phase spacer is installed between the shaft tower retaining of adjacent built on stilts additive wire.
Described overhead distribution line comprises T line, F line, N line, and the compound inslation inter-phase spacer is installed between the shaft tower retaining of adjacent overhead distribution line.
As shown in Figure 1, direct supply 1 * 27.5kV mode of taking back streamline adopts the scheme of setting up line feeder to expand energy, and having increased line feeder is the oidiospore lead radical that has increased same phase conductor; It is the distance that has increased between the oidiospore lead of same phase conductor that line feeder is erected at field side away from contact suspension; Alternating current gasification railway additive wire with 25kV compound inslation inter-phase spacer two ends be connected on respectively the pillar retaining apart from the line feeder, return wire, be for compressing and keeping distance between the different phase conductors.
As shown in Figure 2, AT power supply 2 * 27.5kV mode of band line feeder, alternating current gasification railway additive wire with 55kV compound inslation inter-phase spacer 1 two ends be connected on respectively the pillar retaining apart from the line feeder, positive feeder, be for compressing and keeping distance between the different phase conductors.
As shown in Figure 3, with alternating current gasification railway additive wire being installed with 25kV or 55kV compound inslation inter-phase spacer 1 between tower multiloop supply line span central conductor, being for compression and keeping distance between the different phase conductors.
As shown in Figure 4, tunnel portal place lead draws in, and compound inslation inter-phase spacer 1 is installed between additive wire, is for keeping the distance between the different phase conductors.
As shown in Figure 5, alternating current gasification railway additive wire is installed is compression with 25kV or 55kV compound inslation inter-phase spacer 1 and keep distance between the different phase conductors at span centre between the T line of traction power transformation overhead distribution line, F line, the N line.
Described compact technology of transmission of electricity is alternating current gasification railway additive wire to be installed with 25kV or 55kV compound inslation inter-phase spacer 1 between adopting between different phase conductors, keep the distance between the different phase conductors, change methods such as circuit geometry to dwindle phase spacing, optimization arrangements of conductors, increase phase oidiospore lead radical etc., thereby take up an area of in compression circuit corridor, and improve the novel technology of transmission of electricity of its ability to transmit electricity.The advantage of compact technology of transmission of electricity be have reduce impedance, energy-conservation, improve power supply reliability, improve the effect of power supply capacity.
Embodiment:
The compact technology of transmission of electricity of electric system expanded be applied among the electrified railway, be in the current rail great development electrified railway expand can effective measure.
For changing existing direct supply 1 * 27.5kV mode Shanhai Pass, Traction Station, north, Suizhong into AT mode Traction Station, overhead distribution line adopt to be installed inter-phase spacer, is vertically opened measure such as disconnector, to reduce and the pilot spacing, facility compact arranges, can make full use of same court and do not enlarge the piece of smooth land.
The compact transmission system of alternating current gasification railway of the present utility model is used for the electrified capacity expansion revamping engineering of Qinhuangdao Shenyang Special Passenger Line, have and to reduce occupation of land, space and saving steel, a raising column stability, improve aspect advantages such as power supply reliability, aspect construction, can reduce to construct to the influence of transportation, improve construction speed, engineering is reached as early as possible produce and take effect, satisfy the needs of Qinhuangdao Shenyang Special Passenger Line tractive power supply system improvement project and real-world operation to greatest extent.
Claims (3)
1. the compact transmission system of alternating current gasification railway, this system includes the built on stilts additive wire transmission of electricity connection structure of electric railway traction net and the overhead distribution wire connection structure of traction power transformation, it is characterized in that:
Between the built on stilts additive wire of described traction net transmission of electricity connection structure, electrified railway compound inslation inter-phase spacer is installed, between the overhead distribution line of described traction power transformation connection structure, the compound inslation inter-phase spacer is installed.
2. the compact transmission system of alternating current gasification railway according to claim 1; it is characterized in that: the built on stilts additive wire of described traction net transmission of electricity connection structure comprises supply line, line feeder, positive feeder, return wire, protective wire, aerial earth wire, and the compound inslation inter-phase spacer is installed between the shaft tower retaining of adjacent built on stilts additive wire.
3. the compact transmission system of alternating current gasification railway according to claim 1, it is characterized in that: described overhead distribution line comprises T line, F line, N line, the compound inslation inter-phase spacer is installed between the shaft tower retaining of adjacent overhead distribution line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202802837U CN201816475U (en) | 2010-08-03 | 2010-08-03 | Alternating-current compact transmission system for electrified railway |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202802837U CN201816475U (en) | 2010-08-03 | 2010-08-03 | Alternating-current compact transmission system for electrified railway |
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| Publication Number | Publication Date |
|---|---|
| CN201816475U true CN201816475U (en) | 2011-05-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202802837U Expired - Lifetime CN201816475U (en) | 2010-08-03 | 2010-08-03 | Alternating-current compact transmission system for electrified railway |
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| Country | Link |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108128214A (en) * | 2017-11-13 | 2018-06-08 | 中铁二院工程集团有限责任公司 | A kind of method for reducing AT power supply mode single-core cable sheath induced voltages |
-
2010
- 2010-08-03 CN CN2010202802837U patent/CN201816475U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108128214A (en) * | 2017-11-13 | 2018-06-08 | 中铁二院工程集团有限责任公司 | A kind of method for reducing AT power supply mode single-core cable sheath induced voltages |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 300142 Hebei District, Zhongshan Road, No. 10, Patentee after: China Railway Design Group Limited Address before: 300142 Hebei District, Zhongshan Road, No. 10, Patentee before: China Railway Third Survey and Design Institute Group Ltd. |
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| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110504 |