高速铁路电力电缆不对称接地故障对二次电缆的影响  

Influence of Asymmetrical Ground Fault in Power Cable of High－speed Railway on Secondary Cable

作　　者：周思宇[1] 冷怡 

机构地区：[1]四川电力科学研究院,四川成都610072 [2]四川省电力公司远维检修部,四川成都610041

出　　处：《四川电力技术》2012年第5期81-84,共4页Sichuan Electric Power Technology

摘　　要：由于空间走廊和建设成本的限制,新建高速客货共线铁路10 kV供电电缆、通信电缆、信号电缆等二次电缆同沟敷设。这些电缆之间相邻距离近、平行距离远,处于同一电磁环境中的电气线缆通过各种电磁耦合方式彼此紧密联系在一起。通过理论分析、计算机仿真计算等方法,分析高速铁路电力电缆不对称接地故障对通信信号电缆的影响。Owing to the limitation of space corridor and construction cost, the construction of newly - built high - speed railway needs to put the 10 kV power supply cable, communication cable and signal cable in one cable pit. These cables are very close to each other and run parallel to others for a long distance. They are in the same electromagnetic environment and closely connecting with each other through a great variety of electromagnetic coupling ways. By the theoretical analysis and using elec- tromagnetic transient program （EMTP） , the influence of asymmetrical ground fault in power cable of high - speed railway on the communication cable and signal cable is analyzed.

关 键 词：电缆 电磁耦合 不对称接地故障 

分 类 号：TM862[电气工程—高电压与绝缘技术]