Ground-fault feeder detection with fault-current and fault-resistance measurement in mine power systems

Xiangjun Zeng, K. K. Li, Wai Lok Chan, Sheng Su, Yuanyuan Wang

Research output: Journal article publicationJournal articleAcademic researchpeer-review

41 Citations (Scopus)

Abstract

Many mine power systems operate with a floating neutral or are high-resistance grounded, and earth fault current is no more than a few tens of amperes. Traditional earth-fault-detection methods based on zero-sequence current have poor sensitivity in this case. For improvement, a fault-detection scheme with fault-current and fault-resistance measurement is presented in this paper, which is capable of detecting high-impedance ground faults. The scheme has been verified by electromagnetic-transient-program simulation, and a fault-detection prototype has been developed and tested in the laboratory. Results show that the scheme has high sensitivity and robustness.
Original languageEnglish
Pages (from-to)424-429
Number of pages6
JournalIEEE Transactions on Industry Applications
Volume44
Issue number2
DOIs
Publication statusPublished - 1 Mar 2008

Keywords

  • Fault detection
  • High-impedance ground faults (HIGFs)
  • Mine power systems
  • Protective relaying

ASJC Scopus subject areas

  • Control and Systems Engineering
  • Industrial and Manufacturing Engineering
  • Electrical and Electronic Engineering

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