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High Resistance Grounding is preferred in many industrial applications. 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 the drive has HRG fault. This paper will present a leakage flux linkage detection based HRG fault identification method...
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. This article develops an approach to identify the ground-fault location in HRG systems using voltage sensing,...
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