Transactions on Electrical and Electronic Materials

The Korean Institute of Electrical and Electronic Material Engineers (한국전기전자재료학회)
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Investigation of On-line Monitoring Method on 1500 V Direct Current Cable of Subway

  • Shen, Xiaojun (Department of Electrical Engineering, Shanghai Jiaotong University) ;
  • Jiang, Xiuchen (Department of Electrical Engineering, Shanghai Jiaotong University) ;
  • Yi, Zeng (Department of Electrical Engineering, Shanghai Jiaotong University)
  • Published : 2006.10.01
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Abstract

The traction DC feeder cable is one of the key devices for the safety operation of subway system, but for low voltage DC feeder cable (<3000 V) for subway, little attention has been paid by investigators on its online monitoring technology. With an introduction of cable laying and operation environment for the cable, this paper investigated the on-line monitoring technology of 1500 V DC feeder cable of subway. Firstly, in the text, the fault model of 1500 V DC cable was proposed based on the analysis of the fault type of the DC feeder cable, and then put forward synthetically on-line monitoring discharge signal and DC leakage current signal to assess DC feeder cable insulating state. The results of laboratory experiment prove that the proposed methods are feasible and can be implemented on-line monitor on DC feeder cable of subway.

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References

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