Grounding Grid Corrosion Diagnosis

Based on circuit theory and principles of fault diagnosis,a new method of grounding grid corrosion diagnosis is proposed.This method will be as pure resistance of grounding grid network,the actual grounding grids and grounding of the topological structure of inter-wire resistance measurements,the application of Tellegen's theorem to establish grounding grid corrosion diagnosis equation,by solving the equation has been diagnosed slip grounding grid conductor changes in value,and then the extent of corrosion of the grounding grid is determined.Simulation,simulation experiments and field tests show that this method can quickly determine the corrosion slip.