换流站接地网接地阻抗准确测量研究

Study on the Accurate Measurement for Grounding Impedance of Grounding Grid in Converter Station

换流站接地网接地阻抗的准确测量是检验接地网设计和施工质量的关键环节。以山西±800 kV雁门关换流站接地网接地阻抗测试为基础,从理论上分析了影响接地阻抗测试的干扰因素,并提出了现场准确测试地网接地阻抗的方法和建议。

The accurate measurement for grounding impedance of grounding grid in converter station is the key to check the design and construction quality of grounding grid. In this paper,based on the grounding impedance test of grounding grid in ±800 kV Yanmenguan converter station in Shanxi province, the factors influencing the grounding impedance test are analyzed theoretically, and the methods and suggestions for accurately testing the grounding impedance on site are put forward.