Continuous Wavelet Transform for Discrimination between Inrush and Fault Current Transients in Transformer

This paper presents the characterization of fault transient in transformer using Continuous wavelet transform (CWT). This characterization will add the diagnostic of internal fault in transformer. The detection method can provide information of internal turns to turns fault in winding. CWT analysis provides discrimination of inrush current and fault from terminal parameter. This will add advance concept of on line monitoring of transformer from terminal