In this program the voltage and current of simultaneous faults or unbalanced power system are calculated by solving the simultaneous equations of multi-port network and of the fault boundary.
本程序应用多端口网络方程和故障端口边界方程联立求解的方法，计算电力系统各种多重故障及任意不对称运行的电压和电流。
Such as aerospace, construction and decoration, port machinery, rail transportation, electric equipment, low voltage switch, dyeing and printing machinery, food machinery, ships and yachts.
如航天、建筑装潢、港口机械、轨道交通、电气化设备、高低压开关、印染机械、食品机械、船舶游艇等。
When exciting Sin voltage source is applied to proper port, the stability of network depends on the sign of active and reactive components for fundamental-wave current entering port of networks.
若在适当端口施加正弦电压源，则网络的稳定性取决于进入端口基波电流的实功与虚功成份的符号值。
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