This paper presents an investigation of grounding related problems in AC/DC converter stations. The investigation, sponsored by the Electric Power Research Institute, is based on analytical studies and published experimental results. The following grounding related problems have been investigated: (1) ground potential rise in converter stations and DC grounds and its effect on safety; (2) touch, step, and transfer voltages in and around DC converter stations and DC grounds; and (3) effects on soil thermal sta…
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