Research on Fault Diagnosis of Electrical Network Method Grounding Network Based on SCHO

The grounding grid is mainly made of galvanized steel and is buried 1-2 meters below the soil. As the operating life increases, it may suffer from galvanic corrosion and microbial corrosion. In order to ensure the safe operation of the substation, the staff of the State Grid need to grasp the corrosion situation of the grounding network in time. At present, the corrosion detection mainly adopts the electrical network theory method, but there is a problem of underdetermination. In this paper, Sine Cosine Optimizer is proposed to be used to accurately and efficiently locate the corrosion location of the grounding grid, and the experimental results show that the proposed method has stronger convergence ability and higher accuracy, which is better than other optimization methods.