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A resistance-grounded power system has a critical element that is often ignored-the neutral-grounding resistor (NGR). During a single-phase-to-ground fault, current flows from the transformer or generator winding through the faulted-phase conductor to the fault and to ground, returning to the source winding through the ground-return path and the NGR. The information presented here has shown that an...
A resistance-grounded power system has a critical element that is often ignored-the neutral-grounding resistor. A resistance-grounded power system should have itpsilas neutral-grounding resistor continuously monitored. During a single-phase-to-ground fault, current flows from the transformer or generator winding through the faulted-phase conductor to the fault and to ground, returning to the source...
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