CN102424004A - Motor train unit line-side circuit and control method thereof - Google Patents
Motor train unit line-side circuit and control method thereof Download PDFInfo
- Publication number
- CN102424004A CN102424004A CN2011103249811A CN201110324981A CN102424004A CN 102424004 A CN102424004 A CN 102424004A CN 2011103249811 A CN2011103249811 A CN 2011103249811A CN 201110324981 A CN201110324981 A CN 201110324981A CN 102424004 A CN102424004 A CN 102424004A
- Authority
- CN
- China
- Prior art keywords
- vacuum breaker
- pantograph
- current transformer
- transformer
- circuit
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Landscapes
- Electric Propulsion And Braking For Vehicles (AREA)
Abstract
The invention discloses a motor train unit line-side circuit and a control method thereof. The motor train unit line-side circuit comprises two motive power units in the same structure, wherein the two motive power units are connected through an isolation switch branch circuit, the isolation switch branch circuit is formed by serially connecting two isolation switches, and both ends of the isolation switch branch circuit are respectively connected to a position between a primary side current transformer and a vacuum circuit breaker of the two motive power units. The line-side circuit is a basically symmetrical circuit, the circuit type is simple, the equipment arrangement and the wire distribution are simple, the circuit control is easy to realize, and in addition, the train operation reliability is very high.
Description
Technical field
The present invention relates to High-Voltage Network lateral circuit and control method, specifically is a kind of motor train unit circuit on side of overhead contact line and control method thereof.
Background technology
The former limit of existing motor train unit receives current circuit basically by pantograph; Electric original paper such as vacuum breaker, earthing switch, lightning arrester, disconnector is formed; But because different trains organizational systems and design demand, the array mode of these original papers in circuit is different, and mode is different; Make that its effect is different, so car load to be flowed the reliability height different.
Because the former limit of motor train unit receives the array mode of current circuit electric component different; Fig. 1 has provided possible a kind of motor train unit circuit on side of overhead contact line structure diagram; The motor train unit circuit on side of overhead contact line comprises two power units that structure is identical; Each power unit comprises pantograph, high voltage potential transformer, vacuum breaker, primary current transformer, back flow current transformer, main transformer, current transformer, traction electric machine and earth system, and pantograph, vacuum breaker, primary current transformer, main transformer, back flow current transformer, earth system connect successively, and two groups of outputs of main transformer are connected to a current transformer respectively; Traction electric machine is connected with current transformer; Vacuum breaker is through earthing switch ground connection, and pantograph inserts contact system, and the pantograph of two power units connects through a disconnector; Be parallel with lightning arrester between pantograph and the vacuum breaker, be parallel with lightning arrester between vacuum breaker and the current transformer that is attached thereto.
As can beappreciated from fig. 1, owing to directly with high-tension cable two pantographs are linked to each other, under the situation that a line circuit breaker fault occurs, train will lose half the power, and then makes that the redundancy of train is bad, and serviceability reduces; Owing to used a disconnector, make that the circuit structure symmetry of train is bad, and then the work capacity that increases design and make; Also exist some circuit structure not use the situation of disconnector, make the failure operation ability of train reduce, these circuit structures also possibly make the Control System Design of train, the more complicated that become such as wiring of train.
Summary of the invention
Technical matters to be solved by this invention is, and is not enough to prior art, and a kind of simple in structure, motor train unit circuit on side of overhead contact line and control method thereof that control is easy are provided, and increases the reliability that flowed of train, improves the train transport capacity.
For solving the problems of the technologies described above; The technical scheme that the present invention adopted is: a kind of motor train unit circuit on side of overhead contact line; Comprise two power units that structure is identical, each power unit comprises pantograph, high voltage potential transformer, vacuum breaker, primary current transformer, main transformer, current transformer, traction electric machine, back flow current transformer and earth system, and pantograph, vacuum breaker, primary current transformer, main transformer, back flow current transformer, earth system connect successively; Two groups of outputs of main transformer are connected to a current transformer respectively; Traction electric machine is connected with current transformer, and vacuum breaker is through earthing switch ground connection, and the high voltage potential transformer parallel connection inserts between pantograph and the vacuum breaker; Pantograph inserts contact system; Two power units connect through the disconnector branch road, and disconnector props up two disconnectores of route and is in series, and the two ends of disconnector branch road are inserted respectively between the vacuum breaker and primary current transformer of two power units.
Be parallel with lightning arrester between pantograph and the vacuum breaker, be parallel with lightning arrester between vacuum breaker and the primary current transformer.
A kind of control method of motor train unit circuit on side of overhead contact line; This method is: under normal operation, train only rises a pantograph, and the only closed directly vacuum breaker that is connected of pantograph therewith; Through high-tension cable simultaneously to the transformer-supplied of another power unit; Another pantograph is in falls the bow position, and another vacuum breaker will be provided with to be locked in automatically and break off the position through control system software, realize electrical isolation through the vacuum breaker of locking between two power units.
When breaking down in the equipment in the power unit; Break off disconnector, make that the connection between two power supply units is broken off, the power supply unit of fault is isolated; The power unit normal operation that maintenance is not broken down makes train that half the power maintenance operation arranged.
Circuit on side of overhead contact line of the present invention is a kind of circuit of basic symmetry, and the circuit pattern is simple, and facility location, wiring are simple; This circuit control realizes easily, and the serviceability of train is very high.Avoid rescue, the proteges of the powerful who stay with their benefactions like parasites occurring, also improve transport capacity greatly, considerable economic benefit is arranged, for homogeneous circuit reference is arranged also simultaneously.
Description of drawings
Fig. 1 is existing a kind of motor train unit circuit on side of overhead contact line structure principle chart;
Fig. 2 is one embodiment of the invention motor train unit circuit on side of overhead contact line structure principle chart.
Wherein:
1: contact system; 2,10: pantograph; 3: high voltage potential transformer; 4,9: vacuum breaker; 5: lightning arrester; 6: earthing switch; 7: high voltage isolator; 8: the high pressure wire jumper between vehicle; 11: the primary current transformer; 12: current transformer; 13: main transformer; 14: traction electric machine; 15: the back flow current transformer; 16: earth system.
The specific embodiment
As shown in Figure 2, one embodiment of the invention motor train unit have two identical power units, connect through high-tension cable between two unit.Contact system 1 is passed through on the former limit of motor train unit main transformer 13, pantograph 2 or 10, and vacuum breaker 4 or 9 gets.The traction winding on 13 limits of main transformer is to main convertor power supply 12, and main convertor 12 is supplied power to traction electric machine 14 through the AC-DC-AC conversion, thereby realizes the traction and the electric braking of permutation car.Simultaneously, main transformer 13 mouths connect earth system 16, realize the working earthing of train.
Under normal operation; Train only rises a pantograph (generally being the cantle of relative service direction); And the vacuum breaker that only closed direct pantograph therewith is connected, simultaneously to the main transformer power supply of another power unit, another pantograph is in falls the bow position through high-tension cable; Another vacuum breaker will be provided with to be locked in automatically and break off the position through control system software, and realize electrical isolation through the vacuum breaker of locking.
At two high voltage isolator 7 is set between the power supply unit independently; Be used in the connection of breaking off under the improper situation between two power supply units; And the power supply unit of fault is isolated; Train still has half the power to keep operation, and train is parked on the circulation line, and major failures such as rescue take place.
Claims (3)
1. motor train unit circuit on side of overhead contact line; Comprise two power units that structure is identical; Each power unit comprises pantograph, high voltage potential transformer, vacuum breaker, primary current transformer, main transformer, current transformer, traction electric machine, back flow current transformer and earth system, and pantograph, vacuum breaker, primary current transformer, main transformer, back flow current transformer, earth system connect successively, and two groups of outputs of main transformer are connected to a current transformer respectively; Traction electric machine is connected with current transformer; Vacuum breaker is through earthing switch ground connection, and the high voltage potential transformer parallel connection inserts between pantograph and the vacuum breaker, and pantograph inserts contact system; It is characterized in that; Two power units connect through the disconnector branch road, and disconnector props up two disconnectores of route and is in series, and the two ends of disconnector branch road are inserted respectively between the vacuum breaker and primary current transformer of two power units.
2. motor train unit circuit on side of overhead contact line according to claim 1 is characterized in that, is parallel with lightning arrester between pantograph and the vacuum breaker, vacuum breaker and and the primary current transformer between be parallel with lightning arrester.
3. control method of motor train unit circuit on side of overhead contact line according to claim 1 or claim 2; It is characterized in that; This method is: under normal operation, train only rises a pantograph, and the only closed directly vacuum breaker that is connected of pantograph therewith; Through high-tension cable simultaneously to the transformer-supplied of another power unit; Another pantograph is in falls the bow position, and another vacuum breaker will be provided with to be locked in automatically and break off the position through control system software, realize electrical isolation through the vacuum breaker of locking between two power units; When breaking down in the equipment in the power unit; Break off disconnector, make that the connection between two power supply units is broken off, the power supply unit of fault is isolated; The power unit normal operation that maintenance is not broken down makes train that half the power maintenance operation arranged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103249811A CN102424004B (en) | 2011-10-24 | 2011-10-24 | Motor train unit line-side circuit and control method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103249811A CN102424004B (en) | 2011-10-24 | 2011-10-24 | Motor train unit line-side circuit and control method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102424004A true CN102424004A (en) | 2012-04-25 |
| CN102424004B CN102424004B (en) | 2013-12-04 |
Family
ID=45958070
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011103249811A Active CN102424004B (en) | 2011-10-24 | 2011-10-24 | Motor train unit line-side circuit and control method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102424004B (en) |
Cited By (26)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102381198A (en) * | 2011-11-29 | 2012-03-21 | 南车株洲电力机车有限公司 | High-voltage circuit for electric locomotive unit |
| CN103569140A (en) * | 2012-07-19 | 2014-02-12 | 中国北车集团大同电力机车有限责任公司 | Return grounding apparatus of electric locomotive, and electric locomotive |
| CN104085310A (en) * | 2014-07-10 | 2014-10-08 | 南车株洲电力机车有限公司 | Grid side circuit control method and device based on motor train unit roof grounding |
| CN104527435A (en) * | 2014-11-28 | 2015-04-22 | 南车青岛四方机车车辆股份有限公司 | Novel 25KV pantograph control circuit |
| CN104590028A (en) * | 2014-12-18 | 2015-05-06 | 中国北车集团大连机车车辆有限公司 | Electric locomotive contact network voltage detection device |
| CN104749983A (en) * | 2015-04-13 | 2015-07-01 | 南车株洲电力机车有限公司 | Circuit and method for controlling vacuum circuit breaker |
| CN105373680A (en) * | 2015-12-11 | 2016-03-02 | 南车青岛四方机车车辆股份有限公司 | Design method and device for high-pressure system of high-speed train |
| CN105743072A (en) * | 2016-03-01 | 2016-07-06 | 中国铁道科学研究院 | High-voltage electric circuit protection system for electric motor train unit |
| CN106004448A (en) * | 2016-05-18 | 2016-10-12 | 福开尔（西安）电气有限公司 | High-voltage loop natural insulation and double-main-breaker redundant circuit system for electric locomotive |
| CN106274920A (en) * | 2016-08-31 | 2017-01-04 | 中车唐山机车车辆有限公司 | The pulliung circuit of dual power source EMUs |
| CN107284245A (en) * | 2017-06-30 | 2017-10-24 | 中国铁道科学研究院 | Rolling stock high voltage electric equipment monitoring system |
| CN107472086A (en) * | 2017-06-30 | 2017-12-15 | 中车大连机车车辆有限公司 | The double main disconnected control systems of power concentration EMUs power car |
| CN108572574A (en) * | 2018-05-18 | 2018-09-25 | 中车株洲电力机车有限公司 | The high pressure circuit on side of overhead contact line and its control method of power car in a kind of EMU |
| CN108773300A (en) * | 2018-06-13 | 2018-11-09 | 株洲时代电子技术有限公司 | A kind of contact net power supply high-pressure system and its application |
| CN108773301A (en) * | 2018-06-13 | 2018-11-09 | 株洲时代电子技术有限公司 | A kind of contact net power supply high-pressure system control method and its application |
| CN109318758A (en) * | 2017-07-31 | 2019-02-12 | 株洲中车时代电气股份有限公司 | A kind of flexibility ground automatic neutral-section passing device, system and method |
| CN109698615A (en) * | 2017-10-20 | 2019-04-30 | 株洲中车时代电气股份有限公司 | A kind of traction convertor of double-current system independent axes control |
| CN109703368A (en) * | 2018-12-10 | 2019-05-03 | 中车大连机车车辆有限公司 | Locomotive high-voltage system redundancy control method and system |
| CN110525275A (en) * | 2019-09-09 | 2019-12-03 | 中车株洲电力机车有限公司 | A kind of EMU alternating current-direct current circuit on side of overhead contact line and its control method |
| CN110525276A (en) * | 2019-09-09 | 2019-12-03 | 中车株洲电力机车有限公司 | A kind of EMU alternating current-direct current circuit on side of overhead contact line and its control method |
| CN110525274A (en) * | 2019-09-09 | 2019-12-03 | 中车株洲电力机车有限公司 | A kind of EMU alternating current-direct current circuit on side of overhead contact line and its control method |
| CN110920470A (en) * | 2019-12-13 | 2020-03-27 | 西南交通大学 | Electric traction locomotive operation overvoltage suppression control system and method |
| WO2020238494A1 (en) * | 2019-05-30 | 2020-12-03 | 中车青岛四方机车车辆股份有限公司 | Railway vehicle ultrahigh voltage overcurrent fault detection apparatus and method |
| CN112339566A (en) * | 2019-08-07 | 2021-02-09 | 中车唐山机车车辆有限公司 | Main line detection system of high-voltage system of motor train unit |
| WO2021047089A1 (en) * | 2019-09-09 | 2021-03-18 | 中车株洲电力机车有限公司 | Ac/dc network side circuit of motor train unit and control method therefor |
| CN114523885A (en) * | 2022-03-03 | 2022-05-24 | 中车青岛四方机车车辆股份有限公司 | High-voltage power supply loop protection system, high-voltage power supply loop protection method and vehicle |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6074901A (en) * | 1983-09-28 | 1985-04-27 | Toshiba Corp | Special high voltage protector of ac electric railcar |
| CN201158314Y (en) * | 2008-02-22 | 2008-12-03 | 耿光耀 | Line connection circuit on roof of line circuit breaker |
| CN102381198A (en) * | 2011-11-29 | 2012-03-21 | 南车株洲电力机车有限公司 | High-voltage circuit for electric locomotive unit |
| CN202264649U (en) * | 2011-10-24 | 2012-06-06 | 南车株洲电力机车有限公司 | Network side circuit of motor train unit |
-
2011
- 2011-10-24 CN CN2011103249811A patent/CN102424004B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6074901A (en) * | 1983-09-28 | 1985-04-27 | Toshiba Corp | Special high voltage protector of ac electric railcar |
| CN201158314Y (en) * | 2008-02-22 | 2008-12-03 | 耿光耀 | Line connection circuit on roof of line circuit breaker |
| CN202264649U (en) * | 2011-10-24 | 2012-06-06 | 南车株洲电力机车有限公司 | Network side circuit of motor train unit |
| CN102381198A (en) * | 2011-11-29 | 2012-03-21 | 南车株洲电力机车有限公司 | High-voltage circuit for electric locomotive unit |
Cited By (38)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102381198A (en) * | 2011-11-29 | 2012-03-21 | 南车株洲电力机车有限公司 | High-voltage circuit for electric locomotive unit |
| CN103569140A (en) * | 2012-07-19 | 2014-02-12 | 中国北车集团大同电力机车有限责任公司 | Return grounding apparatus of electric locomotive, and electric locomotive |
| CN103569140B (en) * | 2012-07-19 | 2016-03-23 | 中国北车集团大同电力机车有限责任公司 | The backflow earth system of electric locomotive and electric locomotive |
| CN104085310B (en) * | 2014-07-10 | 2016-03-02 | 南车株洲电力机车有限公司 | A kind of circuit on side of overhead contact line control method based on motor train unit roof ground connection and device |
| CN104085310A (en) * | 2014-07-10 | 2014-10-08 | 南车株洲电力机车有限公司 | Grid side circuit control method and device based on motor train unit roof grounding |
| CN104527435A (en) * | 2014-11-28 | 2015-04-22 | 南车青岛四方机车车辆股份有限公司 | Novel 25KV pantograph control circuit |
| CN104590028A (en) * | 2014-12-18 | 2015-05-06 | 中国北车集团大连机车车辆有限公司 | Electric locomotive contact network voltage detection device |
| CN104749983A (en) * | 2015-04-13 | 2015-07-01 | 南车株洲电力机车有限公司 | Circuit and method for controlling vacuum circuit breaker |
| CN104749983B (en) * | 2015-04-13 | 2017-08-18 | 南车株洲电力机车有限公司 | A kind of vacuum circuit breaker control circuit and method |
| CN105373680A (en) * | 2015-12-11 | 2016-03-02 | 南车青岛四方机车车辆股份有限公司 | Design method and device for high-pressure system of high-speed train |
| CN105373680B (en) * | 2015-12-11 | 2019-03-22 | 中车青岛四方机车车辆股份有限公司 | The design method and device of bullet train high-pressure system |
| CN105743072A (en) * | 2016-03-01 | 2016-07-06 | 中国铁道科学研究院 | High-voltage electric circuit protection system for electric motor train unit |
| CN106004448A (en) * | 2016-05-18 | 2016-10-12 | 福开尔（西安）电气有限公司 | High-voltage loop natural insulation and double-main-breaker redundant circuit system for electric locomotive |
| CN106274920A (en) * | 2016-08-31 | 2017-01-04 | 中车唐山机车车辆有限公司 | The pulliung circuit of dual power source EMUs |
| CN107284245A (en) * | 2017-06-30 | 2017-10-24 | 中国铁道科学研究院 | Rolling stock high voltage electric equipment monitoring system |
| CN107472086A (en) * | 2017-06-30 | 2017-12-15 | 中车大连机车车辆有限公司 | The double main disconnected control systems of power concentration EMUs power car |
| CN107284245B (en) * | 2017-06-30 | 2019-11-19 | 中国铁道科学研究院 | Rolling stock high voltage electric equipment monitoring system |
| CN109318758A (en) * | 2017-07-31 | 2019-02-12 | 株洲中车时代电气股份有限公司 | A kind of flexibility ground automatic neutral-section passing device, system and method |
| CN109698615A (en) * | 2017-10-20 | 2019-04-30 | 株洲中车时代电气股份有限公司 | A kind of traction convertor of double-current system independent axes control |
| CN109698615B (en) * | 2017-10-20 | 2021-07-20 | 株洲中车时代电气股份有限公司 | Double-flow independent shaft control traction converter |
| WO2019218523A1 (en) * | 2018-05-18 | 2019-11-21 | 中车株洲电力机车有限公司 | High-voltage network side circuit of motor train in motor train unit and control method therefor |
| CN108572574A (en) * | 2018-05-18 | 2018-09-25 | 中车株洲电力机车有限公司 | The high pressure circuit on side of overhead contact line and its control method of power car in a kind of EMU |
| CN108572574B (en) * | 2018-05-18 | 2020-11-27 | 中车株洲电力机车有限公司 | High-voltage network side circuit of motor vehicle in motor train unit and control method thereof |
| CN108773301A (en) * | 2018-06-13 | 2018-11-09 | 株洲时代电子技术有限公司 | A kind of contact net power supply high-pressure system control method and its application |
| CN108773301B (en) * | 2018-06-13 | 2021-09-21 | 株洲时代电子技术有限公司 | Control method and application of high-voltage system of power supply of contact network |
| CN108773300B (en) * | 2018-06-13 | 2021-09-10 | 株洲时代电子技术有限公司 | High-voltage system of power supply of contact network and application thereof |
| CN108773300A (en) * | 2018-06-13 | 2018-11-09 | 株洲时代电子技术有限公司 | A kind of contact net power supply high-pressure system and its application |
| CN109703368A (en) * | 2018-12-10 | 2019-05-03 | 中车大连机车车辆有限公司 | Locomotive high-voltage system redundancy control method and system |
| CN109703368B (en) * | 2018-12-10 | 2021-02-02 | 中车大连机车车辆有限公司 | Redundancy control method and system for locomotive high-voltage system |
| WO2020238494A1 (en) * | 2019-05-30 | 2020-12-03 | 中车青岛四方机车车辆股份有限公司 | Railway vehicle ultrahigh voltage overcurrent fault detection apparatus and method |
| CN112339566A (en) * | 2019-08-07 | 2021-02-09 | 中车唐山机车车辆有限公司 | Main line detection system of high-voltage system of motor train unit |
| WO2021047089A1 (en) * | 2019-09-09 | 2021-03-18 | 中车株洲电力机车有限公司 | Ac/dc network side circuit of motor train unit and control method therefor |
| CN110525274A (en) * | 2019-09-09 | 2019-12-03 | 中车株洲电力机车有限公司 | A kind of EMU alternating current-direct current circuit on side of overhead contact line and its control method |
| CN110525276A (en) * | 2019-09-09 | 2019-12-03 | 中车株洲电力机车有限公司 | A kind of EMU alternating current-direct current circuit on side of overhead contact line and its control method |
| CN110525275A (en) * | 2019-09-09 | 2019-12-03 | 中车株洲电力机车有限公司 | A kind of EMU alternating current-direct current circuit on side of overhead contact line and its control method |
| CN110920470A (en) * | 2019-12-13 | 2020-03-27 | 西南交通大学 | Electric traction locomotive operation overvoltage suppression control system and method |
| CN114523885A (en) * | 2022-03-03 | 2022-05-24 | 中车青岛四方机车车辆股份有限公司 | High-voltage power supply loop protection system, high-voltage power supply loop protection method and vehicle |
| CN114523885B (en) * | 2022-03-03 | 2024-05-17 | 中车青岛四方机车车辆股份有限公司 | High-voltage power supply loop protection system, protection method and vehicle |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102424004B (en) | 2013-12-04 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102424004B (en) | Motor train unit line-side circuit and control method thereof | |
| JP6421238B2 (en) | Power supply system by cable in electric railway | |
| CN101297456A (en) | A converter station | |
| CN102069726B (en) | Vehicle-mounted power system for low and medium-speed maglev train | |
| CN104015632A (en) | Power supply system without passing neutral phases in whole journey of high-speed passenger transport line motor train unit | |
| CN109927574A (en) | A kind of urban rail car main circuit | |
| WO2022095324A1 (en) | High-voltage system of train, and train | |
| CN108656954B (en) | High-voltage box, high-voltage system and electric motor train unit | |
| CN202264649U (en) | Network side circuit of motor train unit | |
| KR20130063702A (en) | Power line communication system utilizing arrester for electric train system | |
| RU2596046C1 (en) | Alternate current traction substation for supply of traction loads 25 kv | |
| CN103231667A (en) | Double-track electrified railway section post main wiring with capacitive electrical device | |
| CN112977482B (en) | Straddle type monorail vehicle | |
| CN110979015B (en) | Rail vehicle | |
| CN209921113U (en) | Alternating current traction power supply system for photovoltaic energy storage distributed power generation | |
| CN204978290U (en) | Electric Railway pulls power supply structure | |
| CN217994213U (en) | Multi-system traction power supply system | |
| CN104837667B (en) | Drive device for vehicle | |
| DE102015122622A1 (en) | Rail vehicle and transport system | |
| CN205601632U (en) | Redundant circuit system of electric locomotive high pressure is kept apart to disconnected nature of two owners | |
| CN113978321A (en) | Bilateral through power supply subsection station and traction power supply system | |
| CN211166464U (en) | Rail vehicle | |
| CN103264644B (en) | Short rail type electric sectioning structure | |
| KR101410772B1 (en) | Control circuit for high voltage of rail car | |
| JP2019198193A (en) | Electric railway vehicle |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |