Power system fault signal simulation device and line selection test method thereof

The invention discloses an electric power system fault signal simulation device and a line selection test method thereof. The simulation device is used for simulating the operation state of an electric power system to carry out line selection function test on a tested line selection device. The simulation controller is used for simulating the operation state of a power system, and the upper computer is used for generating a control instruction according to the operation state of the power system so as to carry out line selection function test on the tested line selection device through the simulation controller. The small-current grounding line selection device can be conveniently and efficiently tested in all directions, the workload is further reduced, the working efficiency is improved, and the test requirements of different occasions on the small-current grounding line selection device are met. 本发明公开了一种电力系统故障信号模拟装置及其选线测试方法，模拟装置用于模拟电力系统运行状态对被测选线装置进行选线功能测试；包括用于模拟电力系统运行状态的模拟控制器和用于根据电力系统运行状态生成控制指令以通过模拟控制器实现对被