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CN202393864U 一种配出中性导体的IT电力系统接地故障定线定相装置 失效 - 权利终止 转让

一种配出中性导体的IT电力系统接地故障定线定相装置
摘要：
配出中性导体的IT电力系统接地故障定线定相装置，设有微处理器单元、信号单元、投切开关单元和霍尔电流互感器，信号单元包括注入直流信号源、采样电阻和电压表组件；注入直流信号源输入至IT电力系统的中性导体，注入直流信号源串入采样电阻接入中性导体，电压表组件通过投切开关从每相引出，IT电力系统每一相输出回路中设置霍尔电流互感器，信号单元、投切开关单元和霍尔电流互感器由现场总线连接到微处理单元，在微处理单元的显示装置上显示检测结果。
摘要（英）：

The utility model relates to an IT (information technology) electric power system grounding fault alignment and phasing device matching a neutral conductor. The IT electric power system grounding fault alignment and phasing device is provided with a microprocessor unit, a signal unit, a throw switch unit and a Hall current transformer, wherein the signal unit comprises an injection direct-current signal source, a sampling resistor and a voltage meter assembly; the injection direct-current signal source is inputted into the neutral conductor of an IT electric power system, is connected with the sampling resistor in series and is connected into the neutral conductor, the voltage meter assembly is led out from each phase through the throw switch, each-phase output loop of an IT electric power system is provided with the Hall current transformer, the signal unit, the throw switch and the Hall current transformer are connected to a microprocessor unit through field buses, and a detection result is displayed on a display device of the microprocessor unit.

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