CN203254981U - Short-rail type electric segmental structure - Google Patents
Short-rail type electric segmental structure Download PDFInfo
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- CN203254981U CN203254981U CN 201320270859 CN201320270859U CN203254981U CN 203254981 U CN203254981 U CN 203254981U CN 201320270859 CN201320270859 CN 201320270859 CN 201320270859 U CN201320270859 U CN 201320270859U CN 203254981 U CN203254981 U CN 203254981U
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- rail
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- short rail
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Abstract
The utility model discloses a short-rail type electric segmental structure, comprising a first short rail and a second short rail which are separated from a contact rail on one side in a platform section, and a corresponding first short rail and a corresponding second short rail which are separated from a contact rail on the other side, wherein each first short rail is powered by a first direct-current contactor; each second short rail is powered by a second direct-current contactor; the first short rail and the second short rail on the contact rail on each side are not in electric connection; the contact rail parts except the first short rail and the second short rail on the contact rail on each side are respectively connected to transformer stations through cables; and each transformer station is connected to the first direct-current contactor and the second direct-current contactor connected to the contact rail on each side through cables. The short-rail type electric segmental structure disclosed by the utility model can provide an uninterruptible power supply for a vehicle when running normally, and can ensure that adjacent power supply sections do not have electric faults caused by conduction of interior circuits of a train when one power supply section has electric faults.
Description
Technical field
The utility model refers to a kind of short rail formula electricity segmental structure that can take into account near, at a specified future date vehicle marshalling especially about a kind of urban track traffic and inter-city rail transit tractive power supply system.
Background technology
What early stage subway adopted is that disconnected gauge is from the broken rail electricity segmentation for 14m, must be arranged in the front coasting district of vehicle pull-in, for the vehicle take the single-unit motor-car as independent traction unit, vehicle does not in early days generally possess in the situation of regenerative braking capability, vehicle does not generally have very large electric arc during the electric segmentation by the disconnected rail of 14m yet after the coasting section traction electric machine that enters the station stops to get stream, can substantially satisfy Operational requirements, but room light can be subjected to temporary influence.
Vehicle generally all has regenerative braking capability now, if continue to continue to use the segmentation of broken rail electricity, and the disconnected gauge that the segmentation of broken rail electricity is set is from the pantagraph current collector spacing greater than a traction unit of vehicle, no matter then vehicle is to get the stream operation or at the electric braking state, all may produce larger electric arc, scaling loss contact rail and pantagraph current collector slide plate, under frequent powering-off state, appliance life shortens in the car, and maintenance capacity increases, and causes operating cost to increase.And if the disconnected gauge of broken rail electricity segmentation is from the pantagraph current collector spacing less than a traction unit of vehicle, then might suddenly power outage appear and when having little time to avoid vehicle to swarm into the dead electricity district in a power supply zone, be communicated with electrical partitioning in bad order and failure-free adjacent electrical partitioning, not only enlarge the accident incidence, and may bring greater loss in some cases.
And the short rail formula electricity segmentation of adopting has at present taken into account above-mentioned various aspects preferably; but must pay special attention to the reasonableness of short rail setting position; if it is improper to arrange; larger sudden change may occur at vehicle launch period of acceleration feeder current and cause the fender guard misoperation, also still have electric arc between pantagraph current collector and contact rail and occur.At present short rail formula electricity step-by-step arrangement form has following two schemes:
Scheme one: will lack rail at the traction substation place and be arranged in the vehicle pull-in end, the contact rail in short rail and vehicle operating the place ahead is powered by same feeder line, short rail length is pressed the setting of vehicle traction unit length, when vehicle starts in the station, all pantagraph current collectors are all got stream from the same feeding section of train working direction, do not have the feeding section transfer problem in being advanced to the power supply of same traction unit and train by two different feeder lines, each traction unit has that higher to get stream stable.But the shortcoming of this scheme is must adjust short rail position when near, at a specified future date vehicle marshalling is adjusted.
Scheme two: short rail length arranges by full vehicle commander's degree, and the electrical wiring mode is identical with scheme one, but the discharge capacity of lacking DC contactor on the rail feed pathway need to increase be twice above.The advantage of scheme two is needn't adjust short rail position when near, at a specified future date vehicle marshalling is adjusted, and shortcoming is that the high-capacity direct current contactless switch needs import, and price is high; May make vehicle lose kinetic energy in standing during when DC contactor and with cable et out of order that short rail links to each other, and then cause backlog.
The utility model content
In view of this, main purpose of the present utility model is to provide a kind of short rail formula electricity segmental structure that can take into account near, at a specified future date vehicle marshalling and avoid backlog.
For achieving the above object, the utility model provides a kind of short rail formula electricity segmental structure, it comprises in the platform section on the side joint rail-engaging isolated the first corresponding short rail and the second weak point rail on the isolated first short rail and the second short rail and opposite side contact rail, wherein each first short rail is powered by first DC contactor, each second short rail is powered by second DC contactor, nothing electrical connection between the short rail of on each side joint rail-engaging first and the second short rail, the contact rail part of lacking the rail except the first short rail and second on each side joint rail-engaging is connected to different substations by cable separately, and each substation is connected to the first DC contactor and the second DC contactor that connects on this side joint rail-engaging by cable.
Wherein be connected with disconnector between the second DC contactor of a side joint rail-engaging and the substation that is connected, be connected with another disconnector between the first DC contactor of opposite side contact rail and the substation that is connected.
The described first short rail on each side joint rail-engaging equates with the train total length with the second short rail overall length.
The described first short rail and the second short rail on each side joint rail-engaging independently arrange separately.
The short rail formula electricity of the utility model segmental structure can keep uninterrupted power supply to vehicle when normal operation, owing to adopt two sections short rails (the first short rail, the second short rail), compare with the existing scheme that one section short rail only is set, not because the conduction of train internal circuit causes adjacent power supply zone electrical accident also to occur, can better take into account near, at a specified future date vehicle marshalling simultaneously in the time of can avoiding in a power supply zone, electrical accident occurring.In addition, because the utility model adopts two DC contactor, compare with the existing scheme that a DC contactor only is set, can avoid adopting high-capacity DC contactor, economic benefit is more excellent.
Description of drawings
Fig. 1 is the enforcement constitution diagram of the short rail formula electricity of the utility model segmental structure.
The specific embodiment
For ease of structure of the present utility model and the effect that reaches are had further understanding, the existing preferred embodiment that develops simultaneously by reference to the accompanying drawings is described in detail as follows.
As shown in Figure 1, the short rail formula electricity of the utility model segmental structure comprises in the platform section on the side joint rail-engaging isolated the first corresponding short rail 1 and the second weak point rail 2 on the isolated first short rail 1 and the second short rail 2 and opposite side contact rail, wherein each first short rail 1 is by 10 power supplies of first DC contactor, each second short rail 2 is by 20 power supplies of second DC contactor, nothing electrical connection between the short rail 1 of on each side joint rail-engaging first and the second short rail 2, the contact rail part of lacking the rail 2 except the first short rail 1 and second on each side joint rail-engaging is connected to different substations by cable separately, and each substation is connected to the first DC contactor 10 and the second DC contactor 20 that connects on this side joint rail-engaging by cable.
As shown in Figure 1, to be generally used in the utility model that the single hop short circuit rail-engaging as electric segmentation facility changes two sections short circuit rail-engagings between the adjacent current supply circuit, namely first lacks rail 1 and the second short rail 2, the length of each section short circuit rail-engaging is subjected to the pantagraph current collector spacing of electric unit corresponding with the train internal independence, two sections short circuit rail-engagings are respectively by two DC contactor power supplies, two sections short circuit rail-engaging overall lengths are close with the train total length or equate, two sections short circuit rail-engagings can be mechanically independent setting the separately, without electrical connection.Wherein be connected with disconnector 3 between the second DC contactor 20 of a side joint rail-engaging and the substation that is connected, be connected with another disconnector 4 between the first DC contactor 10 of opposite side contact rail and the substation that is connected, when other related electric element is deactivated for some reason on the contactless switch of one of them short rail power supply or the circuit, another short rail still can be powered to vehicle, in the situation close with the train total length as the short section contact rail length of sectioning device spare, prevent that vehicle from losing kinetic energy because of the full car of single hop short circuit rail-engaging dead electricity, and then the obstruction circuit causes operation to be stagnated.
This scheme has been optimized short rail formula electricity step-by-step arrangement form, when adjusting, near, at a specified future date vehicle marshalling needn't adjust short rail position, can not occur DC contactor yet and may make vehicle lose kinetic energy during with cable et out of order that short rail links to each other, and then cause the situation of backlog, improve the reliability of power supply and Transportation Organization, simultaneously because the utility model adopts two DC contactor, compare with the existing scheme that a DC contactor only is set, need not to adopt the high-capacity direct current contactless switch, when reaching technical index, saved again cost.
The above is preferred embodiment of the present utility model only, is not be used to limiting protection domain of the present utility model.
Claims (4)
1. one kind short rail formula electricity segmental structure, it is characterized in that, it comprises in the platform section on the side joint rail-engaging isolated the first corresponding short rail and the second weak point rail on the isolated first short rail and the second short rail and opposite side contact rail, wherein each first short rail is powered by first DC contactor, each second short rail is powered by second DC contactor, nothing electrical connection between the short rail of on each side joint rail-engaging first and the second short rail, contact rail part on each side joint rail-engaging except the first short rail and the second short rail is connected to substation by cable separately, and each substation is connected to the first DC contactor and the second DC contactor that connects on this side joint rail-engaging by cable.
2. short rail formula electricity segmental structure as claimed in claim 1, it is characterized in that, wherein be connected with disconnector between the second DC contactor of a side joint rail-engaging and the substation that is connected, be connected with another disconnector between the first DC contactor of opposite side contact rail and the substation that is connected.
3. short rail formula electricity segmental structure as claimed in claim 1 is characterized in that, the described first short rail on each side joint rail-engaging equates with the train total length with the second short rail overall length.
4. short rail formula electricity segmental structure as claimed in claim 1 is characterized in that, the described first short rail and the second short rail on each side joint rail-engaging independently arrange separately.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320270859 CN203254981U (en) | 2013-05-17 | 2013-05-17 | Short-rail type electric segmental structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320270859 CN203254981U (en) | 2013-05-17 | 2013-05-17 | Short-rail type electric segmental structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203254981U true CN203254981U (en) | 2013-10-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320270859 Expired - Fee Related CN203254981U (en) | 2013-05-17 | 2013-05-17 | Short-rail type electric segmental structure |
Country Status (1)
| Country | Link |
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| CN (1) | CN203254981U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103264644A (en) * | 2013-05-17 | 2013-08-28 | 中铁第四勘察设计院集团有限公司 | Short rail type electric sectioning structure |
-
2013
- 2013-05-17 CN CN 201320270859 patent/CN203254981U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103264644A (en) * | 2013-05-17 | 2013-08-28 | 中铁第四勘察设计院集团有限公司 | Short rail type electric sectioning structure |
| CN103264644B (en) * | 2013-05-17 | 2015-07-22 | 中铁第四勘察设计院集团有限公司 | Short rail type electric sectioning structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131030 Termination date: 20160517 |