期刊名称：IOP Conference Series: Earth and Environmental Science
印刷版ISSN：1755-1307
电子版ISSN：1755-1315
出版年度：2019
卷号：310
期号：3
页码：1-7
DOI：10.1088/1755-1315/310/3/032053
出版社：IOP Publishing
摘要：The fault location accuracy of traction electric lines protection device based on impedance characteristics is usually over thousands of meters. To find out the reasons that affect the accuracy of fault location, this paper studies some the key factors including rail potential, feedback current through ground and fault point impedance characteristics of traction electric lines. Then the calculation method of impedance increment and the reason of the location error are found. It is of great significance for the setting calculation and fault location error analysis of the protection system.
