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Phase-Ground Fault Current Analysis and Protection of a High-Resistance Grounded Power System
2019 IEEE Industry Applications Society Annual Meeting, 2019This article provides a closer look at a high resistance grounded (HRG) power system using symmetrical components. It addresses the industry confusion, “how system charging current direction reverses during phase-ground fault condition without reversal of system voltage that causes fault current flow.” It presents fault current phasor diagram that ...
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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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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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IEEE Industry Applications Magazine, 2007
High-resistance grounded systems have distinct advantages over solidly grounded systems in facilities where very reliable delivery of power to the loads is desirable. Unlike solidly grounded systems, resistance- grounded systems are able to operate continuously with one unintentional ground. However, this is true for only the first ground fault.
Marcelo Valdes +2 more
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High-resistance grounded systems have distinct advantages over solidly grounded systems in facilities where very reliable delivery of power to the loads is desirable. Unlike solidly grounded systems, resistance- grounded systems are able to operate continuously with one unintentional ground. However, this is true for only the first ground fault.
Marcelo Valdes +2 more
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Traveling-wave based fault location with high grounding resistance for HVDC transmission lines
2016 IEEE PES Asia-Pacific Power and Energy Engineering Conference (APPEEC), 2016The fault resistance of HVDC transmission lines is one of the sensitive and significant factors to affect the parameters of travelling wave and the performance of fault location. Therefore explicit fault location of high grounding resistance is proposed lines in this paper.
null Yuntao Zou +5 more
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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 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 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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