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

The Korean Institute of Electrical Engineers (대한전기학회)
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An Experimental Study on Operation Setting Optimization of Circuit Breaker for Improving Safety on DC Railroad Feeder System

직류철도 급전계통의 안전성 향상을 위한 차단기 동작 최적 설정의 실험적 고찰

  • Lee, Jae-Bong (Dept. of Transportation System Engineering, Korea National University of Transportation) ;
  • Jung, No-Geon (Dept. of Transportation System Engineering, Korea National University of Transportation) ;
  • Kim, Jae-Moon (Dept. of Transportation System Engineering, Graduate School of Transportation, Korea National University of Transportation)
  • Received : 2016.01.28
  • Accepted : 2016.02.28
  • Published : 2016.03.01
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Abstract

This paper presents an experimental study on the optimal settings for the selected DC fault relay (50F) to improve the operating performance for the high-speed circuit breaker on DC feeding system which ensure safety within rolling stock maintenance depot. In this study, current supplied to overhead contact wire was calculated on 1 ms interval to analyze the correction values of DC fault selective relay for the operation of current supply cutout. Particularly, standards for the accurate detection of accidents between an electric railway vehicle and the electric power facilities are shown by investigating the optimal correction values for detection of fault current, and the results indicated that it takes about 213 ms for the DC fault selective relay(50F) to fully open. In the future, the correction values of DC fault selective relay suggested in this paper will be used as the reference values of protective relay for the safe operation of DC electric railroad system such as urban railway.

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References

  1. Yonghan Yoon, Nakkyung Kim, Taesoo Kim, "The Affection on Spring Type Tensioning Device Due to Spring Breakage of Spring Type Tensioning Device", Autumn Conference&Annual Meeting of the KSR, pp. 487-493, 2014.
  2. Yong Hyeon Cho, "Analysis of the Major Design Parameters of a Pantograph-Railway Catenary System for Improving the Current Collection Quality", Journal of the KSR, Vol. 17, No. 1, pp. 7-13, 2014.
  3. Jae-Bong Lee, Jae-Moon Kim, "Theoretical Study of Neutral Section Considering the Driving Characteristics of ATO Urban Railway Vehicle", The Transactions of the Korean Institute of Electrical Engineers Vol. 62, No. 10, pp. 1470-1474. 2013. https://doi.org/10.5370/KIEE.2013.62.10.1470
  4. Ho-Sung Jung, Young Park, Hyun-Il Kang "Implementation of Prediction Program for Deterioration Judgment on Substation Power Systems in Urban Railway", The Transactions of the Korean Institute of Electrical Engineers Vol. 62, No. 6, pp. 881-885, 2013 https://doi.org/10.5370/KIEE.2013.62.6.881
  5. Wong-Ki Cho, Kyu-Hyoung Choi "Modeling for the Analysis of Rail Potential in the DC Railway Power System", Journal of the Korean Institute of IIIuminating and Electrical Installation Engineers, Vol. 24, No. 6, pp. 138-146, 2010.
  6. Byung-San Baek, Jae-Chul Kim, "A Study on the Development and Application of Digital Protective Relay for DC Feeding System of Light Rail Transit System", Journal of the Korean Institute of IIIuminating and Electrical Installation Engineers, Vol. 19, No. 2, pp. 77-86, 2005.