【摘要】 按照小电流接地系统发生单相接地故障时的特点，设计出了能够反映系统中电压电流变化情况、可以对各种接地选线保护进行检验调试的实验装置。分析了其构成原理，指出了使用的方法。更多还原

【Abstract】 A testing device which can simulate the voltage and current changes in the case of a ground fault for the systems with floating neutral point,and can be used to test the ground fault line identifying protection,is developed in this paper.The fundamental principle and the circuit structure is presented,The method to use this device is mentioned.更多还原