Análise teórica-experimental do comportamento de topologias clássicas de aterramentos elétricos conhecidos quando interligadas entre si: um estudo de caso

Abstract

The work in question aims to elucidate the main aspects and concepts that involve electrical grounding, thus providing the necessary theoretical basis for the development of the central theme of work, to carry out the comparative analysis between the calculated and the obtained in practice, how much results of earthing resistance for certain interconnected topologies. Within the basis described in the work involving the topic of grounding are to present a brief history of the emergence of grounding, to define what constitutes, the purpose, and the devices that are related to a grounding system. After that, portray the whole process for the dimensioning of a grounding grid, within which are the measurement of the soil resistivity, soil stratification, obtaining the apparent resistivity, and finally calculation of the grounding resistance according to the specifications of the ground and electrodes and the chosen geometry. In the practical part, the main details regarding the construction of the topologies in circumference, aligned rods, and in an empty square are explained, and after that, the measurement of the grounding resistances in the potential drop method using the earth meter for the isolated meshes, and later, linking the topologies from two to two, and at the end of the measurements, a comparative analysis of what was calculated with the values obtained in the measurement is carried out. Finally, report how the experience was in a more general way as the work was done, putting the ideas as to what could be the continuation from what was developed in this project.