Corrosion Mechanism and Corrosion State Detection Method of the Grounding Grid

2019 4th Asia Conference on Power and Electrical Engineering

能源学;电工学

Huang, H.^1 ; Liu, Y.C.^2 ; Xing, Y.^1 ; Wu, J.R.^1 ; Mao, X.Y.^1 ; Wu, Y.Y.^2 ; Peng, M.F.^2

Electric Power Research Institute of Guizhou Power Grid Co., Ltd., Guiyang

550002, China^1

College of Electrical and Information Engineering, Hunan University, Changsha, China^2

关键词: Chemical corrosion;    Common grounding;    Corrosion detection;    Corrosion mechanisms;    Corrosion problems;    ELectrochemical methods;    Field detections;    Reliable operation;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/486/1/012085/pdf
DOI  :  10.1088/1757-899X/486/1/012085

来源: IOP

【 摘 要 】

Corrosion of grounding grids can affect the safe and reliable operation of power systems. In view of the corrosion problem of the grounding grid, this paper introduces the corrosion mechanism, which is chemical corrosion and electrochemical corrosion respectively. Then, three common grounding grid corrosion detection methods, such as electric network analysis method, electromagnetic field detection method and electrochemical method, are introduced. On this basis, the advantages and disadvantages of three methods are compared. Further prospects for the corrosion detection technology of the grounding grid are pointed out.