The three - phase circuit that has balanced three - phase sources , balanced ( equal ) three - phase loads and balanced three - phase line - impedances is called a balanced three - phase system 一个具有对称三相电源,对称三相负载和对称三相线路阻抗的三相电路被称为三相对称电路。
The fault - signal of power system is deeply analyzed in the dissertation . the method of calculating transient response of power system is introduced , and the wave of transient response of power system is simulated . the model of detecting fault in power system is established 本文对电力系统的故障信号进行了深入的分析,介绍了暂态过程的计算方法,并模拟了三相线路短路的暂态波形,为电力系统故障诊断建立了数学模型。