Design of vertical earth grounding with rectangular outline by minimizing its total metal mass

Abstract

The research continues applying optimal criteria for the design of earth grounding with vertical electrodes, placed around a rectangular contour. According to the minimum footprint area and to the total minimal volume criteria, the minimization of the conductive materials total mas, consisting of electrodes and strip-like steel conductor is approached. The minimum metal mass of the earth grounding is obtained for the smaller electrodes length and for the larger distances between them from the corresponding considered domains. The distortion of the objective function dependence has been eliminated by the non-tilting of the electrodes number to the even numbers. The comparison of the minimum earth grounding solutions determined with the three optimal criteria applied to date leads to a deepening of the specialists concept regarding the earth grounding design basis.