单相接地时电网各电压变化规律及其应用

Each Voltage Variable Law and Its Aplication of the Network When Single Phase ground

用解析式、相量图、变化曲线反映了单相接地时电网三相对地电压、中性点电压随单相接地电阻的变化规律，提出新的判断接地相的方法，并指出其在电网运行中的一些实际用途．

This paper used analytical formulare,vector diagram,variable curues reflected variable law of three phases VS earth voltge,and neutral point voltage with single phase earthed resistor when single phase ground.Offered a new critical method of the grounded phaccd and are presented its aplication of the network operation