Diseño de un sistema puesta a tierra para subestacion GERMANIA (10/24MVA) evaluando los voltajes de toque y paso

Abstract

The technical project prior to obtaining the title of electrical engineer, presents a heuristic methodology, based on the standards present in the IEEE80, referring to a grounding system, for the design and implementation of protection against overvoltages and leakage currents. Calculating the resistivity of the ground electrode based on the type of soil where the substation is built, looking for a path of least resistance for the current to dissipate through the soil, obtaining the dissipation voltages in a radius of 50 meters with the center of this being the ground rod at the time of a low frequency discharge also called industrial frequency and for high frequency or lightning type. Adding variations of how the electrode is installed such as the case of being embedded in the ground with a height below the surface of the soil and the case of having a surface layer of either concrete, asphalt or gravel, with a thickness of 10 cm. Concluding by showing the levels of supportability that a person of 50 and 70 kg can tolerate, for touch and step voltages in both types of frequencies already mentioned.