Estudo comparativo da resistência de aterramento entre o sistema em triângulo e o com quatro hastes em quadrado

Abstract

Studies on protection in electrical systems, techniques and tools are of great importance in creating a complete and efficient protection scheme. Electrical grounding is part of this group, especially when it comes to personal protection from electrical shock. Therefore, knowledge of its operation, characteristics and types is essential, so that accidents related to electrical current, which can lead to death, are avoided as much as possible. In this work, the theory behind grounding, its characteristics, types, components and functioning will be addressed. It will also be discussed to address the impact of soil on ground resistance values, how characteristics can change this value, and how their treatment can be useful in a reliable ground design. If the existing grounding systems are needed and especially the two systems used in this work, the triangle with 3 rods and square with 4 rods, where they will be implemented in the field, carry out their resistances as appropriate according to theory and discuss the results obtained.