输电线路和并联电抗器非全相过电压计算研究

Study and Calculation of Overvoltages on Transmission Line and Shunt Reactor in Non-Full Phases Operation

通过理论研究和分析计算,推导出一系列非全相工况条件下输电线路和并联电抗器开断相、并联电抗器中点小电抗过电压及系统序电压简单方便,物理概念清楚的计算公式,可采用以系统参数或以系统补偿率的形式,有助于对系统非全相条件的运行、保护、调度和绝缘配合的计算分析。

A series of formulae for overvoltages on transmission lines, shunt reactor and neutral reactor in Non-Full Phases operation are derived in this paper theoretioally. Calculation of overvoltages and sequence voltages are related to parameters or compensation level of system. These formulae have advantages of clear and exact concept, and can be used easily.