云桂客专27.5kV电压互感器高压熔断器频繁熔断原因分析  

Cause Analysis of Frequent Fusing of High Voltage Fuse of 27.5 kV Voltage Transformer on Yunnan Guiyang Passenger Line

作　　者：张云峰 潘玉忠 ZHANG Yunfeng;PAN Yuzhong(Kunming Power Supply Section of China Railway Kunming Bureau Group Co.,Ltd.,Kunming 650000,China)

机构地区：[1]中国铁路昆明局集团有限公司昆明供电段,云南昆明650000

出　　处：《电工技术》2022年第2期57-58,60,共3页Electric Engineering

摘　　要：在云桂客专供电系统中,电压互感器经隔离开关、高压熔断器接到27.5 kV母线,供牵引变电所测量及保护使用。当电压互感器故障时,高压熔断器熔断,切除故障电压互感器,保护设备安全。引起高压熔断器熔断的原因多样,主要从设备运行环境、设备电气回路电流检测、安装工艺几个方面分析原因,找出高压熔断器熔断的问题根源,制定合理有效的解决方法。In the Yungui passenger line traction power supply system,the voltage transformer is connected to 27.5 kV bus through disconnector and high-voltage fuse for measurement and protection of traction substation.When the voltage transformer fails,the high-voltage fuse is blown,and the faulty voltage transformer is cut off to protect the safety of the equipment.There are various reasons that cause high-voltage fuses to blow.The causes are mainly analyzed from the aspects of equipment operation environment,equipment electrical circuit current detection and installation process,and the root cause of the problem of high-voltage fuse fusing is found out,and the reasonable and effective solutions are formulated.

关 键 词：电气化铁路 电压互感器 高压熔断器 熔断分析 

分 类 号：TM07[电气工程—电工理论与新技术]