摘要
城市轨道交通牵引供电一般采用DC 750 V/DC 1 500 V,为避免直流设备供电时因内部绝缘性能降低或保护误动作造成人身伤害或供电事故等,本文对直流系统框架保护动作因素进行分析,结合天津地铁6号线直流设备巡检、维护及设备特点,制定相应预防措施,确保城市轨道交通稳定运行。
The traction power supply for urban rail transit generally adopts DC 750 V/DC 1 500 V power supply system. To avoid the personnel injuries or power supply accidents caused by the deterioration of internal insulation performance or the protection misoperation under DC equipment power supply, the paper analyzes the protective action factors of the DC system frame, establishes special preventive measures to ensure the stable operation of urban rail transit with connection to the inspection, maintenance and equipment characteristics of the DC equipment for line 6 of Tianjin subway.
出处
《电气化铁道》
2020年第4期101-103,共3页
Electric Railway
关键词
直流系统
框架保护
预防措施
DC system
frame protection
prevention measures
