基于行波电流的电缆故障跳闸定位研究及系统设计  

Research and System Design of Cable Fault Trip Location Based on Traveling Wave Current

作　　者：黄天喜 李斌 刘武能 罗长斌 蒋菊梅 HUANG Tianxi;LI Bin;LIU Wuneng;LUO Changbin;JIANG Jumei(Diqing Power Supply Bureau of Yunnan Power Grid Co.,Ltd.,Diqing 674400,China)

机构地区：[1]云南电网有限责任公司迪庆供电局,云南迪庆674400

出　　处：《电工技术》2021年第18期95-97,共3页Electric Engineering

摘　　要：当电缆线路发生故障时,无法实现线路全线巡线,且传统的阻抗法测距在电力电缆中难以实现故障精确定位,电缆运维人员需要花费大量的人力物力进行故障清除,因此设计一种在线式的故障定位系统显得极为重要。基于电缆铺设的特殊环境,阐述了行波法在电缆线路中的测距优势。介绍了一种基于行波法的电力电缆故障测距方案及相应的测距系统设计,通过试挂网定位数据证明了此方案具有较高的可行性和优越性。When the cable line breaks down,it is impossible to patrol the whole line,and traditional impedance method for fault location in power cable is difficult to achieve accurate fault location.Cable operation and maintenance personnel need to spend a lot of manpower and material resources to clear faults.Therefore,it is very important to design an online fault location system.Based on the special environment of cable laying,the advantages of traveling wave method in the distance measurement of cable lines are explained.A power cable fault location scheme based on traveling wave method and the design of the corresponding distance measurement system are introduced.The test network positioning data proves that this scheme has high feasibility and superiority.

关 键 词：行波法故障测距 行波传输理论 精确定位 系统设计 

分 类 号：TM206[一般工业技术—材料科学与工程]