【摘要】 在局部放电测量中如何区分和抑制干扰信号十分重要，本文利用超宽频带检测技术研究了几种典型干扰信号的超宽频带频谱指纹特征，发现不同类型的干扰信号在时域和频域上有明显区别，并且干扰信号与局部放电信号也有明显区别。利用上述特性，可以在干扰环境下有效地进行局部放电测量。更多还原

【Abstract】 It is important to distinguish and suppress interference signals in partial discharge measurement. Using ultrawideband detection technique, the fingerprint characteristics of the different interference signals in the ultrawideband are studied in this paper. It is found that they are different each other in the time domain and the frequency domain, and there are obvious difference between the interference signals and the partial discharge signals. Using these characteristics, partial discharge in interference environment can be measured effectively.更多还原