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IEEE Industry Applications Magazine, 2013
One of the more difficult problems to solve in industrial plants is how to identify and eliminate ground faults in a high-resistance ground (HRG) system. This is because ground-fault conditions in these systems do not draw enough current to reliably trigger fault current sensors in the drive.
null Lixiang Wei +3 more
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One of the more difficult problems to solve in industrial plants is how to identify and eliminate ground faults in a high-resistance ground (HRG) system. This is because ground-fault conditions in these systems do not draw enough current to reliably trigger fault current sensors in the drive.
null Lixiang Wei +3 more
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IEEE Transactions on Industry Applications, 2001
With the advent of high-voltage (greater than 1 kV) utilization circuits on longwall mining equipment in the late 1980s, the Mine Safety and Health Administration (MSHA) initially required maximum ground-fault current limits of 3.75 A for 4160 V systems and 6.5 A for 2400 V systems.
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With the advent of high-voltage (greater than 1 kV) utilization circuits on longwall mining equipment in the late 1980s, the Mine Safety and Health Administration (MSHA) initially required maximum ground-fault current limits of 3.75 A for 4160 V systems and 6.5 A for 2400 V systems.
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Identifying ground fault location in High Resistance Grounded systems using Adjustable Speed Drive
2011 IEEE Energy Conversion Congress and Exposition, 2011One of the more difficult problems to solve in industrial plant is to locate and eliminate a ground fault in High Resistance Ground (HRG) system. This is because a ground fault conditions in these systems do not draw enough current to reliably trigger fault current sensors in the drive.
Lixiang Wei +3 more
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2017 IEEE Energy Conversion Congress and Exposition (ECCE), 2017
High-resistance grounding (HRG) is preferred in many industrial applications where continual operation during ground fault conditions is critical. However, there are some drawbacks for the traditional HRG detection methods to locate a ground fault in adjustable speed drive systems. The existing methods cannot detect or identify which phase faulted once
Jiangang Hu +3 more
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High-resistance grounding (HRG) is preferred in many industrial applications where continual operation during ground fault conditions is critical. However, there are some drawbacks for the traditional HRG detection methods to locate a ground fault in adjustable speed drive systems. The existing methods cannot detect or identify which phase faulted once
Jiangang Hu +3 more
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A random matrix based high-resistance grounding fault detection method using PMU measurements
2016 IEEE PES Innovative Smart Grid Technologies Conference Europe (ISGT-Europe), 2016Ground fault through transition resistance is common in power systems highly impacting the correct action of protection. To improve the reliability of power systems, a random matrix based method is used in this paper as a backup protection to detect the high-resistance grounding fault, on the basis of successive PMU voltage measurements.
Peng, C, Hou, Y, Wang, C, Du, J
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2013 IEEE Industry Applications Society Annual Meeting, 2013
This paper provides electrical equivalent circuits of High-Resistance Grounded (HRG) power systems other than a delta-wye connected utility power supply transformer included in Part 1 of this paper. This paper provides HRG grounding of a medium voltage (MV) generator for connection to an industrial power system and to a utility power system, and ...
Dev Paul, Peter E. Sutherland
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This paper provides electrical equivalent circuits of High-Resistance Grounded (HRG) power systems other than a delta-wye connected utility power supply transformer included in Part 1 of this paper. This paper provides HRG grounding of a medium voltage (MV) generator for connection to an industrial power system and to a utility power system, and ...
Dev Paul, Peter E. Sutherland
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Research on summation impedance relay with ability to identify high-resistance ground fault
2013 IEEE PES Asia-Pacific Power and Energy Engineering Conference (APPEEC), 2013Protection for single-phase high-resistance ground faults is a long term concern in the field of relay protection. Because characteristic of single-phase high-resistance ground faults is unobvious, the traditional distance protection can't deal with it.
Shan He +5 more
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Ground Fault Monitoring for Motor-Drive Systems with High Resistance Grounding
2023 IEEE International Electric Machines & Drives Conference (IEMDC), 2023Jiangang Hu +3 more
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2012 IEEE Energy Conversion Congress and Exposition (ECCE), 2012
One of the more difficult problems to solve in industrial plant is to locate and eliminate a ground fault in High Resistance Ground (HRG) system. This is because ground fault conditions in these systems do not draw enough current to reliably trigger fault current sensors in the drive.
Lixiang Wei, Zhijun Liu
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One of the more difficult problems to solve in industrial plant is to locate and eliminate a ground fault in High Resistance Ground (HRG) system. This is because ground fault conditions in these systems do not draw enough current to reliably trigger fault current sensors in the drive.
Lixiang Wei, Zhijun Liu
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Phasor diagram of a single-phase-ground fault current in a high-resistance grounded power system
2017 IEEE/IAS 53rd Industrial and Commercial Power Systems Technical Conference (I&CPS), 2017This paper clarifies the bolted single-phase-ground fault current flow directions and its' phasor diagram for a high-resistance grounded (HRG) power system. The paper clarifies that the system charging current 3I CO (vector sum of currents from un-faulted phases to ground) flow direction remains unchanged, whereas the same current called the ...
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