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http://dx.doi.org/10.5207/JIEIE.2010.24.6.160

A Study on the Supply and Stray Current Distribution of the DC Railway Power System  

Cho, Woong-Ki (서울산업대학교 철도전문대학원, (주)한얼엔지니어링)
Choi, Kyu-Hyoung (서울산업대학교 철도전기신호공학과)
Publication Information
Journal of the Korean Institute of Illuminating and Electrical Installation Engineers / v.24, no.6, 2010 , pp. 160-168 More about this Journal
Abstract
This paper presents the analysis of the current as stray current and supplied current of the substation, on the DC railway power system. In DC railway power supply system, the running rails are usually used as the return conductor(negative-polarity) for traction load current. This condition mainly focuses on economic considerations, since it does not require the installation of an additional return conductor. But, problems of low resistance between the running rails for the return conductor and earth allows a significant part of the return load current to leak into the earth. This current is normally called to as leakage or stary current. This stary currents creates serious problems for any electrified matter in the underground. Therefore, reduction of stray current of the DC railway power supply system is also of direct benefit to the operational and safety aspects of the DC railway systems. In this paper, deal with the analysis of the current distribution on the DC railway power system applied the common grounding system, using SPLIT of CDEGS program.
Keywords
DC Railway Power System; Stray Current; SPLIT of CDEGS Program;
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