METHOD AND A SYSTEM OF DETECTING WINDING FAULT UNDER ONLINE OPERATION OF AN ELECTRICAL MACHINE

A method and a system of detecting winding fault during online operation of an electrical machine, said method comprising, acquiring a set of signals from the machine over a period, said set of signals comprising two or more magnetic flux signals, each flux signal obtained from a respective flux sensor positioned on the external surface of the machine; extracting an internal winding fault indicator from the set of signals; comparing the internal winding fault indicator with a baseline indicator; and determining the internal winding fault when the internal winding fault indicator deviates from the baseline indicator by a threshold. 一种在电气机器的在线操作期间检测绕组故障的方法和系统，所述方法包括：在一段时间段期间从所述机器获取信号集合，所述信号集合包括两个或更多个磁通量信号，每个通量信号是从定位在所述机器的外表面上的相应的通量传感器获得的；从所述信号集合提取内部绕组故障指示符；将内部绕组故障指示符与基线指示符进行比较；并且当内部绕组故障指示符与基线指示符偏差阈值时，确定内部绕组故障。