【摘要】 变压器的在线状态监测对于变压器的故障诊断以及电网的正常运行具有重要的意义。对以机械参数为主、电气参数为辅的变压器振动分析法进行了研究,建立了一套在线状态监测系统。系统通过工作现场的数据采集终端检测变压器的振动、电压、电流和油温信号,使用串口和以太网实现数据采集终端和上位机之间的数据通信;上位机采用LabVIEW软件对这些信号进行分析,从而判断变压器的工作状态。试验表明,系统具有良好的在线监测效果。更多还原

【Abstract】 The online monitoring for conditions of transformer is very important to its fault diagnostics and the normal operation of power grid.The method of transformer vibration analysis mainly depending on mechanical parameters and supplementary with electrical parameters is researched,thus the online monitoring system is established.The system detects the vibration,and the signals of voltage,current and oil temperature of the transformer through the data acquisition terminal;the data communication between data acquisition terminal and the host computer is implemented via serial port and Ethernet.In host computer,the signals are analyzed by adopting LabVIEW software,thus the operation status of transformer are judged.The test indicates that the system possesses excellent online monitoring effects.更多还原