牵引变电所220kV电源进线缺相运行原因分析及改进措施  

Analysis of Causes of Lack-of-phase Operation of 220 kV Power Supply Incoming Line of Traction Substation and its Improving Measures

作　　者：詹广振 ZHAN Guangzhen

机构地区：[1]中国铁路郑州局集团有限公司郑州高铁基础设施段

出　　处：《电气化铁道》2020年第5期90-92,98,共4页Electric Railway

摘　　要：针对京广高铁卫辉牵引变电所发生220 kV电源进线A相突然故障,造成电力系统缺相运行,上、下行接触网供电中断的问题,分析了牵引变电所220 kV失压保护未动作的原因,并对失压保护的逻辑关系进行了改进,既能满足牵引变电所220 kV电源进线缺相运行又能实现失压启动备自投的功能。With regard to the problems that the sudden breakdown of phase A of 220 kV power supply incoming line occurred in Weihui traction substation of Beijing-Guangzhou high speed railway led to the lack-of-phase operation of electric power system and the power supply cut of OCL of up track and down track,the paper analyzes the causes of failure to operation for voltage loss of 220 kV at traction substation,implements the modification of logic relations of voltage loss protection,which is able to meet the lack-of-phase operation for 220 kV power supply incoming line of traction substation and realize the functions of starting of standby automatic switching for voltage loss.

关 键 词：牵引变电所 电源进线缺相 逻辑关系修改 

分 类 号：U226.7[交通运输工程—道路与铁道工程]