浅析地铁直流牵引供电系统馈线保护  

Analysis on Feeder Protection of Metro Direct Current Traction Power Supply System

作　　者：刘勇 Liu Yong(Shenzhen Metro Operation Group Co.,Ltd.,Shenzhen 518000,Guangdong Province,China)

机构地区：[1]深圳地铁运营集团有限公司,广东深圳518000

出　　处：《科学与信息化》2024年第18期166-168,共3页Technology and Information

摘　　要：在地铁牵引供电系统运转中,持续性和可靠性是最基础的要求,要想保障地铁牵引供电系统的正常运转,馈线保护技术的应用是十分重要的手段。在具体实施地铁直流牵引供电系统馈线保护的时候,常用的技术类型包括大电流脱扣保护、定时过电流保护、接触网过热负荷保护、框架泄漏保护、双边连跳保护、自动重合闸技术等,这些技术对于地铁直流牵引供电系统馈线保护都能发挥十分重要的促进作用,但是在应用过程中,其作用机制也存在一定的差异性,基于此,本章就上述内容展开详细阐述。In the operation of metro traction power supply system,continuity and reliability are the most basic requirements,and the application of feeder protection technology is a very important means to ensure the normal operation of metro traction power supply system.In the specific implementation of metro direct current traction power supply system feeder protection,the commonly used technology types include high-current tripping protection,timing overcurrent protection,overhead contact line equipment overheating load protection,frame leakage protection,bilateral jump protection,and automatic reclosing technology.These technologies can play a very important role in promoting the feeder protection of metro direct current traction power supply system.However,in the application process,there are certain differences in its mechanism of action.Based on this condition,this chapter elaborates on the above content.

关 键 词：地铁 直流 牵引供电系统 馈线 保护 

分 类 号：TM7[电气工程—电力系统及自动化]