Open-phase fault monitoring system

The invention relates to the technical field of electrical equipment state monitoring, and particularly discloses an open-phase fault monitoring system, in which a relay communication unit uses an MCU as a central control processing unit, and is externally connected with an ADC to realize high-speed A/D conversion of large-scale signals; a GNSS SSamp through the relay communication unit; and the RTC realizes a time service function, realizes a data interaction function through the LORA module, and sends data to a background industrial personal computer according to a designed sampling frequency. The system has the advantages of being small in size, high in precision, low in cost, easy to install and the like, and real-time monitoring and accurate identification of the open-phase fault of the auxiliary power system line of the nuclear power plant can be achieved. 本申请涉及电气设备状态监测技术领域，具体公开了一种断相故障监测系统，其中的中继通信单元使用MCU作为中央控制处理单元，外接ADC可以实现大规模信号的高速A/D转换；通过中继通信单元的GNSS&RTC实现授时功能，通过LORA模组实现数据交互功能，将数据按照设计采样频率送至后台工控机。本申请系统具有