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Research on Temperature Monitoring Method of Cable on 10 kV Railway Power Transmission Lines Based on Distributed Temperature Sensor

Author

Listed:
  • Kai Chen

    (China Railway Siyuan Survey and Design Group CO., LTD., Wuhan 430063, China)

  • Yi Yue

    (School of Electrical and Electronic Engineering, Huazhong University of Science and Technology, Wuhan 430074, China)

  • Yuejin Tang

    (School of Electrical and Electronic Engineering, Huazhong University of Science and Technology, Wuhan 430074, China)

Abstract

Railway power transmission lines (RPTL) are power lines that provide nontraction power supply for railways, such as communications and signals along the railway. With the advancement of technology, power cables are being used more and more widely. Operational experience has shown that during the operation of power cables, abnormal heat is often caused by fault factors such as poor joint crimping and severe partial discharge caused by insulation defects, leading to cable burns in extreme cases. Distributed temperature sensors (DTS), a kind of spatial continuous temperature sensor using sensing optical fiber, can measure the temperature along the cable and are expected to realize on-line monitoring and positioning of cable heating faults. This paper first builds a finite element model of the cable under various faults to calculate the distribution characteristics of the temperature field of the faulty cable. Then the results are verified through experiments with the external sensing fiber and the artificially manufactured heating points of the cable. The conclusions show that it is feasible to use a distributed sensing fiber to monitor and locate the heating fault of power cable.

Suggested Citation

  • Kai Chen & Yi Yue & Yuejin Tang, 2021. "Research on Temperature Monitoring Method of Cable on 10 kV Railway Power Transmission Lines Based on Distributed Temperature Sensor," Energies, MDPI, vol. 14(12), pages 1-15, June.
    • Handle: RePEc:gam:jeners:v:14:y:2021:i:12:p:3705-:d:579081
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    References listed on IDEAS

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    1. Tommaso Bragatto & Alberto Cerretti & Luigi D’Orazio & Fabio Massimo Gatta & Alberto Geri & Marco Maccioni, 2019. "Thermal Effects of Ground Faults on MV Joints and Cables," Energies, MDPI, vol. 12(18), pages 1-15, September.
    2. Paweł Ocłoń & Janusz Pobędza & Paweł Walczak & Piotr Cisek & Andrea Vallati, 2020. "Experimental Validation of a Heat Transfer Model in Underground Power Cable Systems," Energies, MDPI, vol. 13(7), pages 1-10, April.
    3. Diana Enescu & Pietro Colella & Angela Russo, 2020. "Thermal Assessment of Power Cables and Impacts on Cable Current Rating: An Overview," Energies, MDPI, vol. 13(20), pages 1-36, October.
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    Cited by:

    1. Zhiheng Liu & Yongqing Wang & Jiuxi Cheng & Peijie Han & Zhibin Liu & Zhaoyan Zhang & Xiaoguang Li & Jianquan Yao, 2023. "Dual Sagnac Interferometer Distributed Optical Fiber Localization Method Based on Hilbert–Huang Transform," Energies, MDPI, vol. 16(8), pages 1-13, April.

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