Single-sensor partial discharge localization in power transformer tanks using the time reversal method

In the first part of this paper, the application of the time reversal method to localize partial discharge inside power transformer tanks is reviewed. In this review, both the electromagnetic regime and the acoustic time reversal method are investigated. A brief comparison of both the electromagnetic and acoustic time reversal methods is also provided. In the second part of the paper, an experimental implementation of the partial electromagnetic time reversal method for an empty metallic cube is presented.