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This paper treats ground faults in mixed DC and AC systems. Grounding methods affect common-mode voltage and circulating currents under normal conditions. Ground faults produce fault currents and systemwide offsets throughout the system with respect to ground. During ground fault transients, the aggregate bus-to-ground ground capacitance and inductance produce underdamped oscillatory overvoltages. Continuous operation under DC or AC offset affects component selection. 相似文献
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