摘要
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.
作者
刘军
翁天海
张安红
LIU Jun;WENG Tian-hai;ZHANG An-hong(Hangzhou Qiantang River Electric Group Co.,Ltd.,Hangzhou 311243,China)
出处
《变压器》
北大核心
2018年第11期62-67,共6页
Transformer
关键词
变压器
翘曲变形
短路阻抗
阈值
Transformer
Warping deformation
Short-circuit impedance
Threshold value