By analyzing the voltage,current,voltage resonance and current resonance principle in the resonant earthed system,this paper presents the equivalent analysis models of the resonant earthed system.

• 文章通过实际计算和理论分析,证明了在东明开关站启动调试过程中出现的过电压现象是由系统参数设置不当而发生串联电压谐振引起的。