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http://dx.doi.org/10.5370/KIEE.2018.67.12.1735

Analysis on the Method of Forward-Reverse Fault localization of Electric Railways for the Improvement of Accuracy  

Kim, Myeong Su (Dept. of Korea Rail Network Authority)
Kim, Seong Cheol (Dept. of Railroad Electrical System Engineering, Woosong University)
Publication Information
The Transactions of The Korean Institute of Electrical Engineers / v.67, no.12, 2018 , pp. 1735-1742 More about this Journal
Abstract
The number of electric railway failures will increase due to the external and internal effects of electric railroads. The grounding test with 25,000V is to artificially test the transmission voltage to ground, and it is possible to cause risks of electric shock and other equipment insulation damage in neighboring enclosure. In 2016, method of fault localization changed to low - voltage at 380V from artificially high- voltage in the grounding tests since opening of Seoul Metropolitan Express Railway; The method is more accurate and safer rather than the previous one because it gets more data from unlimited grounding tests. However, an electric current falls on the track section where the track branches and vehicle bases with many lines. To precisely detect a transitive phenomenon, it is necessary to continuously study and additionally install.
Keywords
Fault localization; Grounding test; Transitive phenomenon; Feeding; booster;
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