The Transactions of The Korean Institute of Electrical Engineers (전기학회논문지)

The Korean Institute of Electrical Engineers (대한전기학회)
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A Study on the Real Time Measuring Technique of Stray Current by Using Return Current Ratio in the DC Railway System

직류급전시스템에서의 귀환전류 변화비를 이용한 표유전류 실시간 감시기법에 관한 연구

  • 정호성 (한국철도기술연구원 전철전력연구실) ;
  • 박영 (한국철도기술연구원 전철전력연구실) ;
  • 김형철 (한국철도기술연구원 전철전력연구실) ;
  • 민명환 (성균관대 전기전자 및 컴퓨터학과) ;
  • 신명철 (성균관대 전기전자 및 컴퓨터학과)
  • Received : 2011.02.14
  • Accepted : 2011.03.17
  • Published : 2011.04.01
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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.

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References

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