Some content of this application is unavailable at the moment.
If this situation persist, please contact us atFeedback&Contact
1. (WO2018006515) MAIN CIRCUIT GROUNDING PROTECTION METHOD FOR DIRECT-CURRENT ELECTRIC TRANSMISSION DIESEL LOCOMOTIVE
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/2018/006515 International Application No.: PCT/CN2016/104649
Publication Date: 11.01.2018 International Filing Date: 04.11.2016
IPC:
H02H 3/32 (2006.01) ,H02H 7/26 (2006.01)
H ELECTRICITY
02
GENERATION, CONVERSION, OR DISTRIBUTION OF ELECTRIC POWER
H
EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
3
Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition, with or without subsequent reconnection
26
responsive to difference between voltages or between currents; responsive to phase angle between voltages or between currents
32
involving comparison of the voltage or current values at corresponding points in different conductors of a single system, e.g. of currents in go and return conductors
H ELECTRICITY
02
GENERATION, CONVERSION, OR DISTRIBUTION OF ELECTRIC POWER
H
EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
7
Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
26
Sectionalised protection of cable or line systems, e.g. for disconnecting a section on which a short-circuit, earth fault, or arc discharge has occurred
Applicants:
中车大连机车车辆有限公司 CRRC DALIAN CO.,LTD. [CN/CN]; 中国辽宁省大连市 沙河口区中长街51号贾晓勇 JIA, Xiaoyong No.51, Zhongchang Street, Shahekou District Dalian, Liaoning 116022, CN
Inventors:
肖桦 XIAO, Hua; CN
宋杨 SONG, Yang; CN
蔡志伟 CAI, Zhiwei; CN
高磊 GAO, Lei; CN
淡永宁 DAN, Yongning; CN
谭志勇 TAN, Zhiyong; CN
杜欣 DU, Xin; CN
Agent:
大连万友专利事务所 DALIAN WANYOU PATENT AGENCY; 中国辽宁省大连市 沙河口区民政街417号B座8-19号 Room 8-19, Block B, No.417, Minzheng Street, Shahekou District, Dalian, Liaoning 116021, CN
Priority Data:
201610530456.807.07.2016CN
Title (EN) MAIN CIRCUIT GROUNDING PROTECTION METHOD FOR DIRECT-CURRENT ELECTRIC TRANSMISSION DIESEL LOCOMOTIVE
(FR) PROCÉDÉ DE PROTECTION DE MISE À LA MASSE DE CIRCUIT PRINCIPAL DESTINÉ À UNE LOCOMOTIVE DIESEL À TRANSMISSION ÉLECTRIQUE EN COURANT CONTINU
(ZH) 直流电传动内燃机车主电路接地保护方法
Abstract:
(EN) Main circuit grounding protection method for a direct-current electric transmission diesel locomotive. The method comprises: transmitting a signal DJ_IN of a grounding relay DJ and signals dI1-dIn of leakage current sensors S1-Sn to a microcomputer controller by means of a signal detection interface module; when the signal DJ_IN is at a high level and the signals dI1-dIn are all less than a given value dI, the microcomputer controller outputting a grounding relay resetting signal DJ_Ctrl so as to reset the grounding relay DJ; if the DJ_IN is at a low level after resetting, a locomotive continuing operating according to normal working conditions; if the reset grounding relay DJ continues operating, outputting an LCBK_Ctrl signal to control the turn-off of an excitation loop contactor and unloading of a diesel engine; and when the signal DJ_IN is at a high level, if the signal dIi is greater than dI, outputting the BKi_Ctrl signal to turn off the contactor BKi, and simultaneously outputting the DJ_Ctrl signal to reset the grounding relay DJ. The quick diagnosis and localization during grounding can be realized, the reliability of the locomotive is improved, a device is effectively protected, problems are discovered in advance, a grounding device is properly cut off, and the traction power of the locomotive can be retained to the maximum limit.
(FR) La présente invention concerne un procédé de protection de mise à la masse de circuit principal destiné à une locomotive diesel à transmission électrique en courant continu. Le procédé consiste : à transmettre un signal DJ_IN d'un relais de mise à la masse DJ et des signaux dI1-dIn de capteurs de courant de fuite S1-Sn à un dispositif de commande à micro-ordinateur au moyen d'un module d'interface de détection de signal ; lorsque le signal DJ_IN est à un niveau élevé et que les signaux dI1-dIn sont tous inférieurs à une valeur dI, à émettre, au moyen du dispositif de commande à micro-ordinateur, un signal de réinitialisation de relais de mise à la masse DJ_Ctrl afin de réinitialiser le relais de mise à la masse DJ ; si le DJ_IN est à un niveau faible après la réinitialisation, à maintenir le fonctionnement d'une locomotive dans des conditions de fonctionnement normales ; si le fonctionnement du relais de mise à la masse DJ réinitialisé est maintenu, à émettre un signal LCBK_Ctrl afin de commander la mise hors tension d'un contacteur de boucle d'excitation et le déchargement d'un moteur diesel ; et lorsque le signal DJ_IN est à un niveau élevé, si le signal dIi est supérieur à dI, à émettre le signal BKi_Ctrl afin de mettre hors tension le contacteur BKi, et à émettre simultanément le signal DJ_Ctrl afin de réinitialiser le relais de mise à la masse DJ. Le diagnostic et la localisation rapides pendant la mise à la masse peuvent être obtenus, la fiabilité de la locomotive est améliorée, un dispositif est efficacement protégé, les problèmes peuvent être découverts à l'avance, un dispositif de mise à la masse est correctement arrêté, et la puissance de traction de la locomotive peut être maintenue à la limite maximale.
(ZH) 一种直流电传动内燃机车主电路接地保护方法,通过信号检测接口模块将接地继电器DJ的信号DJ_IN和漏电流传感器S1~Sn的信号dI 1~dI n送入微机控制器。当信号DJ_IN为高电平且信号dI 1~dI n全部小于给定值dI,则微机控制器输出接地继电器复位信号DJ_Ctrl信号使接地继电器DJ复位,若复位后DJ_IN为低电平,机车按正常工况继续运行;若复位后接地继电器DJ继续动作,则输出LCBK_Ctrl信号控制励磁回路接触器断开,柴油机卸载;当信号DJ_IN为高电平时,若信号dI i大于dI,则输出BKi_Ctrl信号使接触器BKi断开,同时输出DJ_Ctrl信号使接地继电器DJ复位。可实现接地时的快速诊断和定位,提高机车的可靠性、有效保护设备,并提前发现问题,恰当切除接地设备,且最大限度保留机车牵引动力。
front page image
Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DJ, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IR, IS, JP, KE, KG, KN, KP, KR, KW, KZ, LA, LC, LK, LR, LS, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW
African Regional Intellectual Property Organization (ARIPO) (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Organization (AM, AZ, BY, KG, KZ, RU, TJ, TM)
European Patent Office (AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG)
Publication Language: Chinese (ZH)
Filing Language: Chinese (ZH)
Also published as:
AU2016304615