Diagnosis Struktur Korosi Grounding Grid Gardu Induk pada Area Pelabuhan

Abstract

Grounding is an important component in electrical power to protect equipment from overvoltage and current disturbances. However, corrosion can cause significant performance degradation and reduce system efficiency. Therefore, it is important to diagnose corrosion on grounding rods to ensure the reliability and operational continuity of the substation. In this research, a corrosion structure diagnosis was carried out on grounding rods in the Belawan Port area using COMSOL Multiphysics 5.3 software. The element method is used to model electrochemical corrosion phenomena that occur in grounding rods. Corrosion-causing factor parameters such as soil resistance, pH, temperature, humidity, and salt content are measured and evaluated. The analysis results show that there is significant corrosion on the grounding rod, especially in areas exposed to sea water and corrosive environments. The potential distribution shows that the potential is not evenly distributed along the ground rod. Based on this research, additional maintenance and protection measures can be proposed to reduce the risk of corrosion and extend the life of grounding rod equipment. Based on the analysis results, the input parameters distinguish the electrolyte reaction and look at the results of humidity and salinity and corrosion rate and current density.