| 摘要 |
A device for reducing Geomagnetically-Induced Currents (GIC) in transformer apparatus of an AC power system that comprises a resistor (R10) in parallel with a protective varistor (V10) forming a passive-circuit arrangement. Such passive-circuit arrangement is connected on one end (N) to the neutral of the transformer and grounded on the other end (G). The combination of these elements produces a conductive path from said neutral to ground resulting in a proper reduction of said GIC currents, while substantially sustaining the neutral-grounding characteristics of said transformer.
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