Scientific Development Research

Over time, grounding grids in high-voltage substations are susceptible to corrosion caused by multiple factors including soil conditions, electrochemical reactions, and operational stresses, which directly threaten system safety and reliability. Since single-parameter analysis cannot comprehensively reflect corrosion characteristics, this study proposes a multi-parameter integrated diagnostic method. By conducting comprehensive evaluations of electrical properties, chemical indicators, and structural status, the proposed approach establishes a multidimensional information fusion model to enable quantitative assessment and trend identification of grounding grid corrosion. Results demonstrate that this integrated diagnostic method significantly enhances the accuracy and stability of corrosion detection, providing scientific support for operational decision-making in grounding grid maintenance.

High-voltage substation; Grounding grid; Corrosion diagnosis; Multi-parameter integration; Information fusion