摘要针对变电站接地系统分析存在的问题及对二次回路的干扰。并对如何保障电力系统安全可靠运行，提出了改进措施和建议。In regard with the grounding system,it analyses the existing problems in substation and the disturbance to the secondary circuits.Improv ement measures are also suggested Improrment measures.
2IEEE Std 525-1992,IEEE Guide for the Design and Installation of Cable Systems in Substations.
3Han ke, Wei Jen Lee, Mo Shing Chen,etc.Grounding Techniques and Induced Surge Voltage on The Control Cables Signal.IEEE Trans. Industry Application, 1998.34(4) : 663- 668.
