Grounding faulted feeder detection with fault resistance measurement in mining power systems

Many mining power systems have been operated with floating neutral or high resistance grounded. The 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 the paper. It can detect high impedance grounding faults (HIGF). The scheme has been verified by EMTP simulation, and fault detection prototype has been developed and tested. Results show that the scheme has with high sensitivity and robustness.

[1]  Xianggen Yin,et al.  A novel technique for measuring grounding capacitance and grounding fault resistance in ineffectively grounded systems , 2000 .

[2]  J. Sottile,et al.  An overview of fault monitoring and diagnosis in mining equipment , 1994 .

[3]  Myron Givelberg,et al.  Zero sequence directional earth-fault protection with improved characteristics for compensated distribution networks , 1999 .

[4]  T. Novak,et al.  Technological innovations in deep coal mine power systems , 1995, IAS '95. Conference Record of the 1995 IEEE Industry Applications Conference Thirtieth IAS Annual Meeting.

[5]  Wei-Jen Lee,et al.  Arcing fault detection in underground distribution networks feasibility study , 2000 .

[6]  R. Kaczmarek,et al.  Equivalent circuit application to a phase to ground fault detection in distribution networks without MV voltage measurements , 2004 .

[7]  Zeng Xiang-jun.  STUDY ON FEEDER GROUNDING FAULT PROTECTION BASED ON ZERO SEQUENCE ADMITTANCE , 2001 .

[8]  A. I. Shalin,et al.  Ground fault protection for 6-10 kV distribution system , 2002, Proceedings 6th Russian-Korean International Symposium on Science and Technology. KORUS-2002 (Cat. No.02EX565).

[9]  Y. Harmand,et al.  A new deal for safety and quality on MV networks , 1997 .

[10]  T. K. Chatterjee,et al.  On-line insulation monitoring of heavy duty coal face electrical drives using zero sequence current harmonics , 1996, Proceedings of International Conference on Power Electronics, Drives and Energy Systems for Industrial Growth.

[11]  K. E. Bollinger,et al.  Applications of artificial intelligence in power systems , 1997 .

[12]  Seung-Jae Lee,et al.  Evaluation of feeder monitoring parameters for incipient fault detection using Laplace trend statistic , 2003, 38th IAS Annual Meeting on Conference Record of the Industry Applications Conference, 2003..

[13]  Yin Xianggen,et al.  On-site safety evaluation for earth fault in mining power systems , 2001, Conference Record of the 2001 IEEE Industry Applications Conference. 36th IAS Annual Meeting (Cat. No.01CH37248).

[14]  S. Vitet,et al.  Location strategies and evaluation of detection algorithms for earth faults in compensated MV distribution systems , 2000 .

[15]  Matti Lehtonen,et al.  Characteristics of earth faults in electrical distribution networks with high impedance earthing , 1998 .

[16]  Sang-Hee Kang,et al.  Evaluation of feeder monitoring parameters for incipient fault detection using Laplace trend statistic , 2003 .

[17]  A. I. Shalin,et al.  Ground fault protection for 6... 10 kV distribution system , 2002, Proceedings. 3rd Annual Siberian Russian Workshop on Electron Devices and Materials.

[18]  Gi Won Lee,et al.  A study on the characterization of the incipient failure behavior of insulators in power distribution line , 1999 .

[19]  R. Kaczmarek,et al.  An efficient treatment of transient residual currents in distribution networks grounded with Petersen coil , 2004 .

[20]  G. Dalke,et al.  Grounding and ground fault protection of multiple generator installations on medium-voltage industrial and commercial power systems - Part 3: Protection Methods Working Group Report , 2004, IEEE Transactions on Industry Applications.