| Title |
A Study on the Real Time Measuring Technique of Stray Current by Using Return Current Ratio in the DC Railway System |
| Authors |
정호성(Jung, Ho-Sung) ; 박영(Park, Young) ; 김형철(Kim, Hyeng-Chul) ; 민명환(Min, Myung-Hwan) ; 신명철(Shin, Myong-Chul) |
| DOI |
https://doi.org/10.5370/KIEE.2011.60.4.892 |
| Keywords |
DC Railway system ; Electrolytic corrosion ; Rail potential ; Return current ratio ; Stray current |
| Abstract |
In DC electric railways, while an electric rail car is driving, a part of the working current returned to the substation through rails leaks into the ground. Such a stray current causes railway facilities and metal objects to corrode electrolytically. Therefore, change of stray current needs to be monitored constantly. But so far in domestic, the research on stray current measuring techniques and system adaption are insufficient. To estimate stray current, this paper addresses a method of monitoring the return current that is returned into the negative pole of the substation in real time. |