DISEÑO DE LA MALLA DE PUESTA A TIERRA EN LA SUBESTACIÓN TERMINAL TERRESTRE

Abstract

The present work is about the design of the Terminal Terrestre Substation grounding mesh in the city of Babahoyo, ground measurements were performed to calculate the soil resistivity. The short-circuit current is also obtained in 69/13.8 KV buses in the referred substation. Certain calculations were performed to determine resistance of the mesh, wire size, the theoretical length of the grounding mesh, mesh voltages and contact in order to determine safety levels. In the process of building the grounding mesh, connections are made with compression fittings with the new welding rod silver and 45% of the connector side in order to prevent moisture content in let which would affect over time forming a layer of copper sulfate machined connector and deteriorating the resistance of the mesh. The results have been satisfactory. In a period of tenyears, some measurements were conducted to ground connections equipment and metal structures, keeping most measurements under one ohm.