电力变压器绕组翘曲变形检测和识别

Detection and Recognition of Warping Deformation of Power Transformer Winding

以在运电力变压器短路故障为例,利用短路阻抗变化率对绕组翘曲变形进行检测和识别,并给出了变形评估方法的阈值。

Taking the short-circuit fault of in-service power transformer as an example, the warpage deformation of transformer winding is detect and identified with variation rate of the short-circuit impedance. The threshold value of deformation evaluation method is given.