小波变换在变压器冲击示伤中的应用

Wavelet Transform Application in Showing Default of Power Transformer in Impulse Withstand Test

小波变换是近年来从富氏变换发展起来的时频分析新方法。本文把小波变换应用于变压器冲击示伤。

The wavelet transform technique,being developed from fourier transform recently,is a new approach for time and frequency domain analysis.In this paper,the mian researches are after the application of the wavelet transform in showing the default of the impulse withstand test.With the wavelet transform modulus maxima,a new method to diagnose the fault of the transformer is presented.