CN102381198A - High-voltage circuit for electric locomotive unit - Google Patents
High-voltage circuit for electric locomotive unit Download PDFInfo
- Publication number
- CN102381198A CN102381198A CN2011103863786A CN201110386378A CN102381198A CN 102381198 A CN102381198 A CN 102381198A CN 2011103863786 A CN2011103863786 A CN 2011103863786A CN 201110386378 A CN201110386378 A CN 201110386378A CN 102381198 A CN102381198 A CN 102381198A
- Authority
- CN
- China
- Prior art keywords
- high voltage
- pantograph
- voltage
- group
- voltage 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.)
- Pending
Links
Images
Landscapes
- Electric Propulsion And Braking For Vehicles (AREA)
Abstract
The invention discloses a high-voltage circuit for an electric locomotive unit. The high-voltage circuit for an electric locomotive unit comprises two groups of high-voltage circuits with pantographs, wherein each group of high-voltage circuit with the pantograph respectively comprises the pantograph, a high-voltage isolating switch, a main circuit breaker, a transformer and a shaft end grounding device; the pantograph, the main circuit breaker and the high-voltage isolating switch are connected with one another sequentially; a primary winding of the transformer is connected between the main circuit breaker and the high-voltage isolating switch in parallel; and the primary winding of the transformer is grounded through the shaft end grounding device. The high-voltage circuit for an electric locomotive unit also comprises a group of high-voltage circuit without the pantograph, wherein the group of high-voltage circuit without the pantograph comprises a high-voltage isolating switch, a transformer and a shaft end grounding device; and the three groups of high-voltage circuits are connected with a high-voltage tie cable through a locomotive roof high-voltage bus. The high-voltage circuit for an electric locomotive unit can meet the requirement of high-power heavy load traction, can realize isolation when high-voltage electric appliance parts break down, guarantees the minimum power loss of the whole locomotive after the failure is isolated, and has high availability in the whole locomotive failure state.
Description
Technical field
The present invention relates to rail electric locomotive and use high voltage circuit, specifically is a kind of electric locomotive group high voltage circuit.
Background technology
Electric locomotive obtains electric energy by pantograph from supply network, through giving locomotive traction system and control system power supply behind line circuit breaker, high voltage isolator, the voltage transformer.
Common electric locomotive operation mode is that single engine and two-shipper heavily join traction outward.The high pressure main circuit structure that the separate unit electric locomotive traction is used is as shown in Figure 1; During normal the operation; High voltage side current is successively passed through pantograph E11/E12, high voltage isolator Q12/Q13, line circuit breaker Q11, the former limit of voltage transformer T11 winding, by being back to traction substation after the axle head earth system G11 ground connection.
When two-shipper heavily joins traction outward, be separate between the high voltage circuit of two electric locomotives, compose in parallel by two covers circuit shown in Figure 1, as shown in Figure 2.
Receive the restriction of factors such as single line circuit breaker current switching ability, transformer capacity, convertor equipment power and power of traction motor, the high pressure power circuit that single engine is used can't satisfy the demand of High power Traction; Two-shipper heavily joins traction (like Fig. 2) though can improve tractive output outward, controls relatively independently, and the synchronism between the locomotive is relatively poor, and every locomotive all need be equipped with the driver and conductor, uses comfort feature not good enough; High voltage circuit shown in Figure 1 is when the line circuit breaker et out of order, and car load power is with total loss, and therefore the faulty condition availability of this high voltage circuit is not high.
Summary of the invention
Technical matters to be solved by this invention is; Not enough to prior art, a kind of electric locomotive group high voltage circuit is provided, satisfy the demand of High power Traction; And can both realize after the High-Voltage Electrical Appliances parts are broken down isolating, the car load power waste is minimum after the assurance fault isolation.
For solving the problems of the technologies described above; The technical scheme that the present invention adopted is: a kind of electric locomotive group high voltage circuit; The high voltage circuit that comprises two groups of band pantographs; The high voltage circuit of every group of band pantograph comprises pantograph, high voltage isolator, line circuit breaker, voltage transformer, axle head earth system respectively; Pantograph, line circuit breaker, high voltage isolator connect successively, and the former limit winding parallel connection of voltage transformer inserts between line circuit breaker and the high voltage isolator, and the former limit of voltage transformer winding is through axle head earth system ground connection; The high voltage isolator of the high voltage circuit of first group of band pantograph is connected through roof high voltage bus, high pressure tie cable (or high-tension connector) with the high voltage isolator of second group of high voltage circuit.
Electric locomotive group high voltage circuit of the present invention also comprises one group not with the high voltage circuit of pantograph; The high voltage circuit with pantograph does not comprise high voltage isolator, voltage transformer, axle head earth system, and the former limit winding of high voltage isolator, voltage transformer, axle head earth system connect successively.Do not insert between the high voltage isolator of high voltage isolator and second group of high voltage circuit of first group of high voltage circuit with the parallel connection of the high voltage circuit of pantograph.
In the electric locomotive group high voltage circuit of the present invention, after not shifting out from locomotive crew with the locomotive of pantograph, can constitute new complete electric locomotive group by the locomotive of two joint band pantographs, the fault isolation function of high voltage circuit electric component is unaffected; The locomotive of band pantograph can use by single-unit, can not organize into groups the back utilization with the locomotive of band pantograph with the locomotive of pantograph.Electric locomotive group high voltage circuit of the present invention can be guaranteed can both realize after the High-Voltage Electrical Appliances parts break down to isolate, and the car load power waste is minimum after guaranteeing fault isolation, satisfied the demand of High power Traction, and circuit structure is simple, and control is convenient.
Description of drawings
Fig. 1 is a separate unit electric locomotive high voltage circuit scheme drawing;
Fig. 2 heavily joins the high voltage circuit scheme drawing outward for two-shipper;
Fig. 3 is one embodiment of the invention electric locomotive group high voltage circuit scheme drawing;
Fig. 4 is after one embodiment of the invention electric locomotive group high voltage circuit removes the part of not being with pantograph, again the new electric locomotive group high voltage circuit scheme drawing of marshalling formation;
Wherein:
E11/E12/E21/E22/E31: pantograph; Q11/Q21/Q31: line circuit breaker; Q12/Q13/Q22/Q23/Q32: high voltage isolator; / T11/T21/T31: voltage transformer; Axle head earth system G11/G21/G31.
The specific embodiment
As shown in Figure 3; One embodiment of the invention comprises the high voltage circuit of two groups of band pantographs; The high voltage circuit of every group of band pantograph comprises pantograph E11/E31, high voltage isolator Q12/Q32, line circuit breaker Q11/Q31, voltage transformer T11/T31, axle head earth system G11/G31 respectively; In the high voltage circuit of first group of band pantograph; Pantograph E11, line circuit breaker Q11, high voltage isolator Q12 connect successively, and voltage transformer T11 parallel connection inserts between line circuit breaker Q11 and the high voltage isolator Q12, and the former limit of voltage transformer T11 winding low tension terminal is through axle head earth system G11 ground connection; In the high voltage circuit of second group of band pantograph; Pantograph E31, line circuit breaker Q31, high voltage isolator Q32 connect successively; Voltage transformer T31 parallel connection inserts between line circuit breaker Q31 and the high voltage isolator Q32, and the former limit of voltage transformer T31 winding low tension terminal is through axle head earth system G31 ground connection; The high voltage isolator Q13 of the high voltage circuit of first group of band pantograph is connected through roof high voltage bus, high pressure tie cable (or high-tension connector) M12, M23 with the high voltage isolator Q32 of the high voltage circuit of second group of band pantograph.One embodiment of the invention also comprises one group not with the high voltage circuit of pantograph; The high voltage circuit with pantograph does not comprise high voltage isolator Q22, voltage transformer T21, axle head earth system G21; High voltage isolator Q22, voltage transformer T21, axle head earth system G21 connect successively, do not insert between the high voltage isolator Q32 of high voltage circuit of high voltage isolator Q12 and second group of band pantograph of high voltage circuit of first group of band pantograph with the parallel connection of the high voltage circuit of pantograph.
The disclosed high voltage circuit of the present invention can be applicable to the electric locomotive group, also can be applicable to the battery-driven car group, and this circuit structure comprises electric locomotive high voltage circuit and one group of two groups of band pantographs not with the electric locomotive high voltage circuit of pantograph, and concrete mode of operation is following:
(1) under the electric locomotive group normal operation, only rises a pantograph.Pantograph E11 rises when being flowed, and line circuit breaker Q11, high voltage isolator Q12, Q22, Q32 are in closure state, and it is following to be flow through journey:
The supply network electric current gets into electric locomotive group roof high voltage bus through pantograph E11, and behind the line circuit breaker Q11 that flows through, one part of current directly gets into the former limit of traction transformer T11 winding, by axle head earth system G11 ground connection; One part of current gets into the former limit of traction transformer T21 winding, by axle head earth system G21 ground connection through behind high voltage isolator Q12, high pressure tie cable M12 and the high voltage isolator Q22; After one part of current is passed through high voltage isolator Q12, high pressure tie cable M12, high pressure tie cable M23 and high voltage isolator Q32 and the former limit of traction transformer T31 winding, through axle head earth system G31 ground connection.
(2) under the electric locomotive group normal operation, pantograph E31 rises when being flowed, and line circuit breaker Q31, high voltage isolator Q32, Q22, Q12 are in closure state, and it is following to be flow through journey:
The supply network electric current gets into electric locomotive group roof high voltage bus through pantograph E31, and behind the line circuit breaker Q31 that flows through, one part of current directly gets into the former limit of traction transformer T31 winding, by axle head earth system G31 ground connection; One part of current gets into the former limit of traction transformer T21 winding, by axle head earth system G21 ground connection through behind high voltage isolator Q32, high pressure tie cable M23 and the high voltage isolator Q22; After one part of current is passed through high voltage isolator Q32, high pressure tie cable M23, high pressure tie cable M12 and high voltage isolator Q12 and the former limit of traction transformer T11 winding, through axle head earth system G11 ground connection.
(3) when pantograph E11 breaks down, break off line circuit breaker Q11, can pantograph E11 be kept apart, can obtain electric energy from supply network by pantograph E31, whole electric locomotive group to be flow through journey identical with (2), do not lose car load power;
(4) when pantograph E31 breaks down, break off line circuit breaker Q31, can pantograph E31 be kept apart, can obtain electric energy from supply network by pantograph E11, whole electric locomotive group to be flow through journey identical with (1), do not lose car load power;
(5) line circuit breaker Q11 takes place not closed or disconnectedly when not opening fault, only need fall pantograph E11 by force and get final product, and does not influence traction transformer T11 and obtains electric energy from pantograph E31, and it is identical with (2) to be flow through journey, does not lose car load power;
(7) circuit breaker Q 31 takes place not closed or disconnectedly when not opening fault, only need fall pantograph E31 by force and get final product, and does not influence traction transformer T31 and obtains electric energy from pantograph E11, and it is identical with (1) to be flow through journey, does not lose car load power;
(8) during the traction transformer faults of any joint locomotive, the high voltage isolator that can break off on the corresponding locomotive is isolated the fault traction transformer: during traction transformer T11 fault, break off high voltage isolator Q12, by pantograph E31 to other locomotive power supply; During traction transformer T21 fault, break off high voltage isolator Q22 and can fault isolation be come, do not flowed and do not influence other locomotive; During traction transformer T31 fault, break off high voltage isolator Q32, fault isolation is come, give other locomotive power supply by pantograph E31.
Claims (2)
1. electric locomotive group high voltage circuit; The high voltage circuit that comprises two groups of band pantographs; The high voltage circuit of every group of band pantograph comprises pantograph, high voltage isolator, line circuit breaker, voltage transformer, axle head earth system respectively, it is characterized in that, pantograph, line circuit breaker, high voltage isolator connect successively; The former limit winding parallel connection of voltage transformer inserts between line circuit breaker and the high voltage isolator, and the former limit of voltage transformer winding is through axle head earth system ground connection; The high voltage isolator of the high voltage circuit of first group of band pantograph is connected with the high pressure tie cable through the roof high voltage bus with the high voltage isolator of the high voltage circuit of second group of band pantograph.
2. electric locomotive group high voltage circuit according to claim 1; It is characterized in that; Also comprise one group not with the high voltage circuit of pantograph; The high voltage circuit with pantograph does not comprise high voltage isolator, voltage transformer, axle head earth system, and the former limit winding of high voltage isolator, voltage transformer, axle head earth system connect successively, does not insert between the high voltage isolator of high voltage isolator and second group of high voltage circuit of first group of high voltage circuit with the parallel connection of the high voltage circuit of pantograph.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103863786A CN102381198A (en) | 2011-11-29 | 2011-11-29 | High-voltage circuit for electric locomotive unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103863786A CN102381198A (en) | 2011-11-29 | 2011-11-29 | High-voltage circuit for electric locomotive unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102381198A true CN102381198A (en) | 2012-03-21 |
Family
ID=45821175
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011103863786A Pending CN102381198A (en) | 2011-11-29 | 2011-11-29 | High-voltage circuit for electric locomotive unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102381198A (en) |
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102424004A (en) * | 2011-10-24 | 2012-04-25 | 南车株洲电力机车有限公司 | Motor train unit line-side circuit and control method thereof |
| 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 |
| 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 |
| CN105346397A (en) * | 2015-11-28 | 2016-02-24 | 中国北车集团大连机车车辆有限公司 | High voltage isolating switch with delayed disconnecting function |
| 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 |
| CN106080208A (en) * | 2016-07-11 | 2016-11-09 | 安庆新景技电子科技有限公司 | Vehicle high-voltage isolation control circuit |
| CN106080213A (en) * | 2016-06-17 | 2016-11-09 | 中车南京浦镇车辆有限公司 | A kind of pantagraph current collector isolation control circuit |
| CN106515458A (en) * | 2016-12-08 | 2017-03-22 | 中车株洲电力机车有限公司 | Method and system for controlling high-voltage isolating switches of electric locomotive group |
| 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 |
| CN109466383A (en) * | 2018-11-23 | 2019-03-15 | 中车株洲电力机车有限公司 | High voltage safe cross-linked circuit and guard method in a kind of electric locomotive group |
| CN109515197A (en) * | 2018-11-07 | 2019-03-26 | 中车株洲电力机车有限公司 | Rail traffic vehicles and its high-speed circuit breaker on-off control method thereof |
| CN109720357A (en) * | 2017-10-26 | 2019-05-07 | 株洲中车时代电气股份有限公司 | A kind of high pressure reconnection control system and method |
| CN110901398A (en) * | 2019-12-02 | 2020-03-24 | 重庆中车长客轨道车辆有限公司 | Straddle type monorail vehicle control circuit and straddle type monorail vehicle |
| WO2020119125A1 (en) * | 2018-12-10 | 2020-06-18 | 中车大连机车车辆有限公司 | Redundancy control method and system for locomotive high-voltage system |
| GB2563541B (en) * | 2018-09-14 | 2021-01-20 | Hitachi Ltd | Train set and cars for train set operable on routes having electrified and non-electrified sections |
| CN112297963A (en) * | 2020-11-03 | 2021-02-02 | 中车青岛四方机车车辆股份有限公司 | Train high-voltage system and train |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0458701A (en) * | 1990-06-27 | 1992-02-25 | Hitachi Ltd | Extra-high tension circuit protector for vehicle |
| JP2002369311A (en) * | 2001-06-05 | 2002-12-20 | Meidensha Corp | Power supply circuit system and feeder system of electric vehicle |
| CN101037089A (en) * | 2006-03-13 | 2007-09-19 | 株式会社东芝 | Railway vehicles |
| CN201193029Y (en) * | 2008-08-15 | 2009-02-11 | 铁道部运输局 | Motor train unit with driving at two ends and power |
| CN102424004A (en) * | 2011-10-24 | 2012-04-25 | 南车株洲电力机车有限公司 | Motor train unit line-side circuit and control method thereof |
| CN202357892U (en) * | 2011-11-29 | 2012-08-01 | 南车株洲电力机车有限公司 | High-voltage circuit for electric locomotive crew |
-
2011
- 2011-11-29 CN CN2011103863786A patent/CN102381198A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0458701A (en) * | 1990-06-27 | 1992-02-25 | Hitachi Ltd | Extra-high tension circuit protector for vehicle |
| JP2002369311A (en) * | 2001-06-05 | 2002-12-20 | Meidensha Corp | Power supply circuit system and feeder system of electric vehicle |
| CN101037089A (en) * | 2006-03-13 | 2007-09-19 | 株式会社东芝 | Railway vehicles |
| CN201193029Y (en) * | 2008-08-15 | 2009-02-11 | 铁道部运输局 | Motor train unit with driving at two ends and power |
| CN102424004A (en) * | 2011-10-24 | 2012-04-25 | 南车株洲电力机车有限公司 | Motor train unit line-side circuit and control method thereof |
| CN202357892U (en) * | 2011-11-29 | 2012-08-01 | 南车株洲电力机车有限公司 | High-voltage circuit for electric locomotive crew |
Cited By (25)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102424004B (en) * | 2011-10-24 | 2013-12-04 | 南车株洲电力机车有限公司 | Motor train unit line-side circuit and control method thereof |
| CN102424004A (en) * | 2011-10-24 | 2012-04-25 | 南车株洲电力机车有限公司 | Motor train unit line-side circuit and control method thereof |
| 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 |
| 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 |
| 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 |
| CN105346397A (en) * | 2015-11-28 | 2016-02-24 | 中国北车集团大连机车车辆有限公司 | High voltage isolating switch with delayed disconnecting function |
| 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 |
| CN106080213B (en) * | 2016-06-17 | 2019-03-08 | 中车南京浦镇车辆有限公司 | A kind of pantagraph current collector isolation control circuit |
| CN106080213A (en) * | 2016-06-17 | 2016-11-09 | 中车南京浦镇车辆有限公司 | A kind of pantagraph current collector isolation control circuit |
| CN106080208A (en) * | 2016-07-11 | 2016-11-09 | 安庆新景技电子科技有限公司 | Vehicle high-voltage isolation control circuit |
| CN106515458A (en) * | 2016-12-08 | 2017-03-22 | 中车株洲电力机车有限公司 | Method and system for controlling high-voltage isolating switches of electric locomotive group |
| CN109720357A (en) * | 2017-10-26 | 2019-05-07 | 株洲中车时代电气股份有限公司 | A kind of high pressure reconnection control system and method |
| CN109720357B (en) * | 2017-10-26 | 2020-02-14 | 株洲中车时代电气股份有限公司 | High-voltage reconnection control system and method |
| 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 |
| GB2563541B (en) * | 2018-09-14 | 2021-01-20 | Hitachi Ltd | Train set and cars for train set operable on routes having electrified and non-electrified sections |
| CN109515197A (en) * | 2018-11-07 | 2019-03-26 | 中车株洲电力机车有限公司 | Rail traffic vehicles and its high-speed circuit breaker on-off control method thereof |
| CN109466383B (en) * | 2018-11-23 | 2021-06-04 | 中车株洲电力机车有限公司 | High-voltage safety interlocking circuit in electric locomotive group and protection method |
| CN109466383A (en) * | 2018-11-23 | 2019-03-15 | 中车株洲电力机车有限公司 | High voltage safe cross-linked circuit and guard method in a kind of electric locomotive group |
| WO2020119125A1 (en) * | 2018-12-10 | 2020-06-18 | 中车大连机车车辆有限公司 | Redundancy control method and system for locomotive high-voltage system |
| CN110901398A (en) * | 2019-12-02 | 2020-03-24 | 重庆中车长客轨道车辆有限公司 | Straddle type monorail vehicle control circuit and straddle type monorail vehicle |
| CN110901398B (en) * | 2019-12-02 | 2021-03-23 | 重庆中车长客轨道车辆有限公司 | Straddle type monorail vehicle control circuit and straddle type monorail vehicle |
| CN112297963A (en) * | 2020-11-03 | 2021-02-02 | 中车青岛四方机车车辆股份有限公司 | Train high-voltage system and train |
| WO2022095324A1 (en) * | 2020-11-03 | 2022-05-12 | 中车青岛四方机车车辆股份有限公司 | High-voltage system of train, and train |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102381198A (en) | High-voltage circuit for electric locomotive unit | |
| CN102490618B (en) | Network-side circuit of electric locomotive unit | |
| JP5819022B2 (en) | Railway vehicle propulsion control device | |
| CN202357892U (en) | High-voltage circuit for electric locomotive crew | |
| CN102804536B (en) | High voltage interlock circuit utilizing serial communications | |
| CN104659852B (en) | Battery management system of electromobile | |
| CN105191117B (en) | For by D/C voltage is converted to AC voltages and vice versa electric structure | |
| CN202512200U (en) | Electric locomotive network side high voltage circuit insulation detection system | |
| CN106505722A (en) | A kind of external Medium voltage power supply system of EMUs | |
| CN102424004A (en) | Motor train unit line-side circuit and control method thereof | |
| CN102431469B (en) | Motor train unit subsidiary loop split-phase passing uninterruptible power supply device | |
| CN104302506B (en) | Motor vehicle with high voltage supply system | |
| CN1816462B (en) | Surge limiter for a traction power converter | |
| CN108572574B (en) | High-voltage network side circuit of motor vehicle in motor train unit and control method thereof | |
| CN104349931A (en) | On-board power system for a vehicle | |
| CN107187318A (en) | CRH5 EMUs medium-pressure electricity supply control method | |
| CN105501065B (en) | Railcar auxiliary power supply system | |
| CN109927574A (en) | A kind of urban rail car main circuit | |
| CN206493850U (en) | A kind of electric rail car group power supply circuit and the electric rail car group | |
| CN202368403U (en) | Over splitting phase continuous power supply device for auxiliary circuit of motor train unit | |
| KR20110113125A (en) | Charging system of electric vehicle using power of dc power system | |
| US20230061714A1 (en) | Electric vehicle charging arrangement and method for charging an electric vehicle | |
| CN202357901U (en) | Line-side circuit of electric Locomotive crew | |
| CN205601632U (en) | Redundant circuit system of electric locomotive high pressure is kept apart to disconnected nature of two owners | |
| CN206678832U (en) | A kind of electric railway subregion connects powered construction |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20120321 |