Ground Grid Design with ETAP in a Steel Plant in Mexico

A Ground Grid design project is presented in a steel plant in Mexico and the objective is to reduce the step and touch potentials in the area of ​​electric arc furnaces of 50 kA connected to transformers of 13.8/0.6 KV and that in the moment of melting, they create dangerous currents for the workers who operate these furnaces. The project is executed from the field measurements of the resistivity of the ground and the design of the ground grid with the ETAP finite element method (FEM) and the construction of the grid is executed up to the foot of the ovens, thereby reducing said potentials to safe values ​​for the workers, contributing to a safer work area.