This paper analyzes the abnormal frequency response test results of a SFF20-150000/110 axial double-split winding transformer.By comparing the amplitude-frequency response curve spectrum of transformer measured in different frequency bands and different states,the reasons for the poor consistency of the curves are analyzed,including the struc-tural differences that can not be eliminated internally and the influence of external testing factors,etc.,and through the auxiliary detection means and methods to accurately evaluate the transformer internal winding whether there is deformation fault.
维普
万方数据