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A New Method of Ground Fault Location in 2 × 25 kV Railway Power Supply Systems

Author

Listed:
  • Jesús Serrano

    (Department of Electrical Engineering, ETS Ingenieros Industriales, Universidad Politécnica de Madrid, C/José Gutierrez Abascal, 2, Madrid 28006, Spain)

  • Carlos A. Platero

    (Department of Electrical Engineering, ETS Ingenieros Industriales, Universidad Politécnica de Madrid, C/José Gutierrez Abascal, 2, Madrid 28006, Spain)

  • Máximo López-Toledo

    (Department of Electrical Engineering, ETS Ingenieros Industriales, Universidad Politécnica de Madrid, C/José Gutierrez Abascal, 2, Madrid 28006, Spain)

  • Ricardo Granizo

    (Department of Electrical Engineering, ETS Ingeniería y Diseño Industrial, Universidad Politécnica de Madrid, C/Ronda de Valencia, 3, Madrid 28012, Spain)

Abstract

Owing to the installation of autotransformers at regular intervals along the line, distance protection relays cannot be used with the aim of locating ground faults in 2 × 25 kV railway power supply systems. The reason is that the ratio between impedance and distance to the fault point is not linear in these electrification systems, unlike in 1 × 25 kV power systems. Therefore, the location of ground faults represents a complicated task in 2 × 25 kV railway power supply systems. Various methods have been used to localize the ground fault position in 2 × 25 kV systems. The method described here allows the location of a ground fault to be economically found in an accurate way in real time, using the modules of the circulating currents in different autotransformers when the ground fault occurs. This method first needs to know the subsection and the conductor (catenary or feeder) with the defect, then localizes the ground fault’s position.

Suggested Citation

  • Jesús Serrano & Carlos A. Platero & Máximo López-Toledo & Ricardo Granizo, 2017. "A New Method of Ground Fault Location in 2 × 25 kV Railway Power Supply Systems," Energies, MDPI, vol. 10(3), pages 1-14, March.
    • Handle: RePEc:gam:jeners:v:10:y:2017:i:3:p:340-:d:92741
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    References listed on IDEAS

    as
    1. Jesus Serrano & Carlos A. Platero & Maximo López-Toledo & Ricardo Granizo, 2015. "A Novel Ground Fault Identification Method for 2 × 5 kV Railway Power Supply Systems," Energies, MDPI, vol. 8(7), pages 1-20, July.
    2. Yimin Zhou & Guoqing Xu & Yanfeng Chen, 2012. "Fault Location in Power Electrical Traction Line System," Energies, MDPI, vol. 5(12), pages 1-17, November.
    3. Guoqing Xu & Yimin Zhou & Yanfeng Chen, 2013. "Model-Based Fault Location with Frequency Domain for Power Traction System," Energies, MDPI, vol. 6(7), pages 1-18, June.
    4. Bingtuan Gao & Wei Wei & Luoma Zhang & Ning Chen & Yingjun Wu & Yi Tang, 2014. "Differential Protection for an Outgoing Transformer of Large-Scale Doubly Fed Induction Generator-Based Wind Farms," Energies, MDPI, vol. 7(9), pages 1-20, August.
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    Cited by:

    1. Zhengqing Han & Shuai Li & Shuping Liu & Shibin Gao, 2020. "Generalized Fault-Location Scheme for All-Parallel AT Electric Railway System," Energies, MDPI, vol. 13(16), pages 1-17, August.
    2. Carlos A. Platero & Jesús Serrano & Máximo López-Toledo & Ricardo Granizo, 2018. "Influence of High-Speed Train Power Consumption and Arc Fault Resistances on a Novel Ground Fault Location Method for 2 × 25 kV Railway Power Supply Systems," Energies, MDPI, vol. 11(6), pages 1-20, June.
    3. Pulin Cao & Hongchun Shu & Bo Yang & Na An & Dalin Qiu & Weiye Teng & Jun Dong, 2018. "Voltage Distribution–Based Fault Location for Half-Wavelength Transmission Line with Large-Scale Wind Power Integration in China," Energies, MDPI, vol. 11(3), pages 1-22, March.

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