Comparativo entre aterramento de haste em triângulo e condutor enterrado na horizontal em forma de círculo

Abstract

The purpose of the grounding system is to protect the installations, electrical equipment and the lives of the people who interact with them. The study of grounding configurations that occupy little space and offer low earth resistance is essential to promote the improvement and increase in the installation's safety. Therefore, in this work, we sought to compare the triangle rod system and the conductor buried horizontally in the shape of a circle by measuring the earth resistances and calculating the resistivities for each of the topologies. Thus, a comparative study was conducted between the resistivities of the two topologies, which also took into account the behavior demonstrated in 64 days, in view of changes in soil temperature, humidity and pH, in addition to climatic changes in precipitation and solar radiation. After analyzing all the data and the climatic influences, it was observed that the triangle rod system performed better throughout the evaluation period and remained practically stable despite climatic fluctuations. On the other hand, the conductor buried horizontally in the shape of a circle was susceptible to climatic variations and showed greater resistivity throughout the period.