直流1500V馈线开关跳闸后如何判断故障点的分析  

作　　者：吴廷军 

机构地区：[1]广州地铁集团有限公司,广东广州510710

出　　处：《科技创新与应用》2018年第18期119-120,122,共3页Technology Innovation and Application

摘　　要：文章介绍了地铁直流供电系统构成,直流1500V馈线开关的保护类型、保护范围,如何根据直流馈线开关所设保护初步判断故障点。直流馈线开关跳闸后的故障现象、类型,重点分析馈线开关重合闸不成功情况下如何用排除法寻找故障点,然后举例说明采用排除法在实际应用中遇到新的问题,以及提出建议,如何解决新的问题。This paper introduces the composition of the direct current （DC） power supply system for the subway, the protection type and protection range of the DC 1,500 V feeder switch, and how to determine the fault point based on the protection set by the DC feeder switch. The fault phenomena and types after DC feeder switch tripping are analyzed, and how to find the fault point by eliminating method under the condition of unsuccessful reclosing of feeder switch is analyzed emphatically. Then, some examples are given to illustrate the new problems encountered in practical application using the elimination method. Finally, suggestions on how to solve new problems are provided.

关 键 词：直流1500V馈线开关 保护 故障点 建议 

分 类 号：TM643[电气工程—电力系统及自动化]