Jinran CHENG, Lijiao ZHU. DC Impact Characteristics of Third Rail Metro Power Supply System and Its Relay Protection Coordination[J]. Electric Drive for Locomotives, 2019,(4):116-119.
Jinran CHENG, Lijiao ZHU. DC Impact Characteristics of Third Rail Metro Power Supply System and Its Relay Protection Coordination[J]. Electric Drive for Locomotives, 2019,(4):116-119. DOI: 10.13890/j.issn.1000-128x.2019.04.025.
This paper introduced the matching form between the conventional B1 metro traction power supply system and the main circuit of the vehicle. Through sorting out the maloperation cases of DDL protection in metro DC power supply system and combining with the field test data, the causes of the maloperation of DDL protection in practice and some errors in setting or existing DDL protection in the past were analyzed. Some suggestions on the coordination between DC impact characteristics and system protection were put forward.
关键词
牵引供电系统直流供电系统直流冲击特性DDL保护地铁列车
Keywords
traction power supply systemDC power supply systemDC impact characteristicsDDL protectionmetro train