CN2716059Y - Automatic neutral-section passing apparatus for AC electrified railroad train - Google Patents
Automatic neutral-section passing apparatus for AC electrified railroad train Download PDFInfo
- Publication number
- CN2716059Y CN2716059Y CN 200420034779 CN200420034779U CN2716059Y CN 2716059 Y CN2716059 Y CN 2716059Y CN 200420034779 CN200420034779 CN 200420034779 CN 200420034779 U CN200420034779 U CN 200420034779U CN 2716059 Y CN2716059 Y CN 2716059Y
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- transformer
- feeding section
- medium pressure
- join
- starting end
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Abstract
The utility model discloses an automatic neutral-section passing apparatus for an A C electrified railroad train. A left-side power supply arm 1 is connected with the original-edge winding starting end of a left-side decompression transformer 3a, and the secondary-edge winding starting end of the left-side decompression transformer 3a is connected with a medium pressure bus-bar 5 through a left-side medium pressure thyristor 4a. A right-side power supply arm 2 is connected with the original-edge winding starting end of a right-side decompression transformer 3b, and the secondary-edge winding starting end of the right-side decompression transformer 3b is connected with the medium pressure bus-bar 5 through a right-side medium pressure thyristor 4b. The medium pressure bus-bar 5 is connected with the original-edge winding starting end of a lifting pressure transformer 6, and the secondary-edge winding starting end of the lifting pressure transformer 6 is connected with a transition power supply arm 8. The control rating of the left-side medium pressure thyristor 4a and the right-side medium pressure thyristor 4b is connected respectively with a control device 7. The utility model has the advantages of simple structure, low cost, long life time and convenient operation and maintenance, and has small impact current when the utility model is working.
Description
Affiliated technical field
The utility model relates to a kind of alternating current gasification railroad train electric supply installation, relates in particular to a kind of power supply passing phase insulator device of alternating current gasification railroad train.
Background technology
In the alternating current gasification railway power supply system, in different highway sections, by different traction institutes to locomotive power supply, when locomotive is striden different substations power supply highway section, separate the changing of powering, having commutation is the phase-splitting problem.Also the i.e. connection mode of the one way feeding of traction net, traction substation and commutation connection thereof determined must have neutral section between the substations different in the traction net, especially for high speed train, getting well with bad of this neutral section will have a strong impact on the running velocity of train.In the prior art, do not need the neutral section that locomotive is transformed is mainly contained " shifter on the post " and " ground automatic switching control equipment ", two class devices have all used mechanical switch, in its switching process, rush of current is very big, cause sparking easily, drawback and hidden dangers such as the short circuit of locomotive main line, tripping operation; Simultaneously, the train operation vibration that rush of current brings also makes the passenger feel uncomfortable; Shifter also is subjected to heavy current impact for a long time, and itself is the life-span weak point also, is easy to damage.
Summary of the invention
The purpose of this utility model just provides a kind of alternating current gasification railroad train automatic neutral-section passing device, and this kind apparatus structure is simple, and cost is low, and the rush current during work is little, and the life-span is long, uses, and is easy to maintenance.
The utility model solves its technical matters, and the technical scheme that is adopted is: a kind of alternating current gasification railroad train automatic neutral-section passing device, comprise left side feeding section, right side feeding section, control setup, and its constructional feature is:
The winding top, former limit of a, left side feeding section and left side step-down transformer joins, left side step-down transformer time winding top, limit then in the left side piezocrystal brake tube and middle pressure bus join;
The winding top, former limit of b, right side feeding section and right side step-down transformer joins, right side step-down transformer time winding top, limit then in the right side piezocrystal brake tube and middle pressure bus join;
The winding top, former limit of c, middle pressure bus and step-up transformer joins, and the winding top, inferior limit and the transition feeding section of this step-up transformer join;
In d, the left side in piezocrystal brake tube and the right side controlled stage of piezocrystal brake tube all join with control setup.
The electricity neutral section is in not electriferous state at ordinary times, and the middle piezocrystal brake tube of and arranged on left and right sides often is under control setup control opens (disconnection) not electriferous state.When electric train when left side feeding section power supply will carry out the transition to right side feeding section power supply by electric neutral section, under control setup control, make left side thyristor closure, so the left side feeding section is through the thyristor of left side step-down transformer, conducting, step-up transformer is communicated with the excessive feeding section of electric neutral section, make train not be connected to the transition feeding section of electric neutral section from the left side feeding section with not having a power failure, at this moment, power supply is still from the left side feeding section.Under the control setup effect, disconnect the left side thyristor, closed right side thyristor then; Left side feeding section and whole electric neutral section and transition are disconnected from electric arm, the right side feeding section is then through the right side step-down transformer, the thyristor of right side conducting, step-up transformer is tided over electric arm with the mistake of electric neutral section and is communicated with, make train do not have a power failure from obtain the power supply that comes from the right side feeding section by the transition feeding section, at last when train operation during to the right side feeding section, control setup disconnects the right side thyristor, finish and cross phase process automatically, locomotive is by right side feeding section supply regular power, and whole neutral section recovers normally not electriferous state.
When train carried out the transition to the left side feeding section by the right side feeding section by electric neutral section, the working process of this device was identical with said process, was that electric current disconnects, closing order is opposite.
Compared with prior art, the beneficial effects of the utility model are: utilize thyristor switch to control electric neutral section and connect power taking from relevant feeding section automatically, thereby do not carry out the transition to another feeding section from a feeding section with not having a power failure reposefully, it is also vibrationless steadily by the electric phase-splitting of traction net not slow down, and has guaranteed the high speed of locomotive, normal, safe operation.Utilize that thyristor disconnects, closure, its electrical endurance is long, and transient process is little, and almost non-impact current is suitable for frequent occasion of regulating, and can effectively reduce rush of current that the relevant tractor equipment of train is caused, reduce hidden danger.By step-down, in middle hydraulic circuit, use thyristor, thyristor is middle piezocrystal brake tube, directly uses high-pressure thyristor to compare with not step-down, cost reduces greatly, and simple in structure, operation, easy to maintenance.
Description of drawings
Below in conjunction with the drawings and specific embodiments the utility model is described in further detail:
Accompanying drawing is the schematic circuit diagram of the utility model embodiment.
The specific embodiment
Accompanying drawing illustrates, and a kind of specific embodiment of the present utility model is: a kind of alternating current gasification railroad train automatic neutral-section passing device, comprise left side feeding section 1, right side feeding section 2, control setup 7, wherein:
A, left side feeding section 1 joins with the winding top, former limit of left side step-down transformer 3a, winding top, 3a limit of left side step-down transformer then in the left side piezocrystal brake tube 4a and middle pressure bus 5 join;
B, right side feeding section 2 joins with the winding top, former limit of right side step-down transformer 3b, winding top, 3b limit of right side step-down transformer then in the right side piezocrystal brake tube 4b and middle pressure bus 5 join;
C, middle pressure bus 5 join with the winding top, former limit of step-up transformer 6, and the winding top, inferior limit and the transition feeding section 8 of this step-up transformer 6 join;
In d, the left side in piezocrystal brake tube 4a and the right side controlled stage of piezocrystal brake tube 4b all join with control setup 7.
Claims (1)
1, a kind of alternating current gasification railroad train automatic neutral-section passing device comprises left side feeding section (1), right side feeding section (2), control setup (7), it is characterized in that:
A, left side feeding section (1) join with the winding top, former limit of left side step-down transformer (3a), winding top, the inferior limit of left side step-down transformer (3a) then in the left side piezocrystal brake tube (4a) join with middle pressure bus (5);
B, right side feeding section (2) join with the winding top, former limit of right side step-down transformer (3b), winding top, the inferior limit of right side step-down transformer (3b) then in the right side piezocrystal brake tube (4b) join with middle pressure bus (5);
C, middle pressure bus (5) join with the winding top, former limit of step-up transformer (6), and the winding top, inferior limit and the transition feeding section (8) of this step-up transformer (6) join;
In d, the left side in piezocrystal brake tube (4a) and the right side controlled stage of piezocrystal brake tube (4b) all join with control setup (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420034779 CN2716059Y (en) | 2004-05-17 | 2004-05-17 | Automatic neutral-section passing apparatus for AC electrified railroad train |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420034779 CN2716059Y (en) | 2004-05-17 | 2004-05-17 | Automatic neutral-section passing apparatus for AC electrified railroad train |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2716059Y true CN2716059Y (en) | 2005-08-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420034779 Expired - Fee Related CN2716059Y (en) | 2004-05-17 | 2004-05-17 | Automatic neutral-section passing apparatus for AC electrified railroad train |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2716059Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101524966B (en) * | 2008-03-03 | 2011-03-30 | 株洲南车时代电气股份有限公司 | Electrical locomotive overvoltage suppression absorbing system and electrical locomotive overvoltage suppression absorbing device |
-
2004
- 2004-05-17 CN CN 200420034779 patent/CN2716059Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101524966B (en) * | 2008-03-03 | 2011-03-30 | 株洲南车时代电气股份有限公司 | Electrical locomotive overvoltage suppression absorbing system and electrical locomotive overvoltage suppression absorbing device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |