Calculation of Electric Potentials Transferred by Grounding Systems

  • Rooney R. A. Coelho University of São Paulo
  • Mauricio B. C. Salles University of São Paulo
  • Luciano Martins Neto Federal University of Uberlândia
  • José Roberto Cardoso University of São Paulo
Keywords: Grounding, Uniform soil, Floating potential, Substations, Numerical methods


Buried metal elements such as fences, pipelines, building rebar, and railway tracks are subject to electric potential rise due to current flowing through the ground. In fact, theremay be a potential transfer of substations to remote regions in which such safety risks are not generally expected. This work presents a calculation procedure for this potential rise in uniform soils. The presented procedure is applied to cases extracted from the literature as a form of validation.