Grounding System Design for a Large Power Plant

J. Ma and F.P. Dawalibi (Canada)


Grounding, safety, soil resistivity, fault current, touch voltage, power plant


The grounding system design of a large power plant is described and discussed. Major procedures necessary for the design of an extensive grounding system are demonstrated. These procedures include constructing adequate soil structures based on short and long traverse soil resistivity measurements, conducting fault current distribution calculations, designing the grounding system, and performing the safety evaluations of the grounding system. The procedures presented in this paper can be used as a guide when designing extensive grounding systems in large power plants.

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