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A Cathodically Protected Electrical Substation Ground Grid

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2 Author(s)
John P. Nelson ; Nelson Engineering Division, Phased Right Inc., P.O. Box 1265, Arvada, CO 80001. ; William K. Holm

A discussion is presented on the design of a cathodically protected electrical substation grounding system in which a steel ground grid and steel ground rods were used in place of the commonly used copper ground grid and copperweld ground rods. Several electrical constraints are presented which discuss common electrical utility requirements, safety considerations, and economic factors. The grounding system materials chosen are discussed along with the means of cathodic protection. Finally, the design, construction, and testing considerations are presented as an aid to others who wish to design a similar system.

Published in:

IEEE Transactions on Industry Applications  (Volume:IA-21 ,  Issue: 2 )