Diseño y simulación del sistema de puesta tierra en una subestación de MT 69/4.16 KV de una planta procesadora de alimentos

Abstract

An essential component in any Electrical Power System is the ground connection, which implies the presence of one or several conductors connected to the surrounding environment, such as facilities, equipment, metal structures, etc. This ground connection establishes a fundamental reference point, known as ground potential, from which all other devices, equipment, locations, and voltage levels in the system are evaluated and considered. Grounding systems play a crucial role in electrical distribution networks, especially regarding personnel safety and equipment integrity. Although there are regulations detailing the correct installation, use and maintenance of these systems, their importance is often underestimated due to the mistaken belief that they are simple to implement. The main objective is to design and carry out a simulation of a grounding system in a 69/4.16 kV substation of a food processing plant. The aim is to demonstrate, through an appropriate evaluation, that these systems can be beneficial for this type of companies, complying with national and international regulations. Furthermore, this document aims to use the technical information of the food processing plant substation as a starting point for sizing the grounding elements. The mathematical formulas stipulated in IEEE Std. 80-2000 regulations will be applied to determine the parameters necessary to design the grounding mesh. To achieve this process, all the criteria defined in IEEE Std. 80-2000 will be used using the ETAP GROUND GRID SYSTEM tool, in order to obtain the necessary configuration parameters for the grounding system.