Abstract:Partial discharge is a common type of fault in power transformers. It indicates the state of the insulation material. Identifying their existence is not an easy task. Some techniques such as chromatographic analysis of the refreshing oil have been used for offline detection of partial discharges. In this paper we present a Virtual Sensor scheme for online partial-discharge detection. The virtual sensor consists of two steps. First, the pre-processing step consists in cleaning the data, and applying wavelet tra… Show more
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