Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/8217
Title: Ground-fault feeder detection with fault-current and fault-resistance measurement in mine power systems
Authors: Zeng, X
Li, KK
Chan, WL 
Su, S
Wang, Y
Keywords: Fault detection
High-impedance ground faults (HIGFs)
Mine power systems
Protective relaying
Issue Date: 2008
Publisher: Institute of Electrical and Electronics Engineers
Source: IEEE transactions on industry applications, 2008, v. 44, no. 2, p. 424-429 How to cite?
Journal: IEEE transactions on industry applications 
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.
URI: http://hdl.handle.net/10397/8217
ISSN: 0093-9994
EISSN: 1939-9367
DOI: 10.1109/TIA.2008.916744
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