Zhang Cheng, Liao Yuxiang, Gao Xue, Zhao Jing, Yuan Yuan, Liao Ruijin
College of Materials Science and Engineering, Chongqing University, Chongqing 400044, China.
State Grid Chongqing Electric Power Research Institute, Chongqing 401123, China.
Micromachines (Basel). 2021 May 2;12(5):513. doi: 10.3390/mi12050513.
A grounding grid plays the role of discharging current and balancing voltage to ensure the safety of the power system. However, soil corrosion can damage the grounding grid, which then can endanger the safe operation of power system. This paper reviewed recent research advances of soil corrosion of grounding grid. The cause, mechanism, types, and influencing factors of soil corrosion of grounding grids were summarized, and the corresponding detection technology and protective measures were also introduced. The paper pointed out that soil corrosion is a serious threat to the grounding grid system. Moreover, the impact mechanism of AC stray current, new corrosion detection technology, and better protective measures still need in-depth research.
接地网起着泄流和平衡电压的作用，以确保电力系统的安全。然而，土壤腐蚀会损坏接地网，进而危及电力系统的安全运行。本文综述了接地网土壤腐蚀的最新研究进展。总结了接地网土壤腐蚀的原因、机理、类型及影响因素，并介绍了相应的检测技术和防护措施。文章指出，土壤腐蚀是对接地网系统的严重威胁。此外，交流杂散电流的影响机制、新的腐蚀检测技术以及更好的防护措施仍需深入研究。
