On-site safety evaluation for earth fault in mining power systems

@article{Xiangjun2001OnsiteSE,
  title={On-site safety evaluation for earth fault in mining power systems},
  author={Zeng Xiangjun and Kangying Li and Woei Leong Chan and Yin Xianggen},
  journal={Conference Record of the 2001 IEEE Industry Applications Conference. 36th IAS Annual Meeting (Cat. No.01CH37248)},
  year={2001},
  volume={2},
  pages={1404-1410 vol.2}
}
Many mining power systems utilize ineffectively grounded sources to restrict the residual current of single-phase earth fault in order to reduce outage and shock hazard. In practice, with the system expansion, topology changing and insulation aging, the potential residual current and zero sequence voltage for earth fault vary dynamically and some arcing earth faults can easily cause overvoltage and induce multiple faults. In order to improve the system safety, on-site condition monitoring… CONTINUE READING

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