Abstract

In 2012, Doble initiated a series of Dielectric Frequency Response (DFR) research papers aimed at addressing issues influencing reliability of the DFR-based data analysis [1]. The subsequent 2013 paper presented nonlinear effects of the insulating liquid conductivity and its impact on the dielectric response. It also introduced a methodology for compensating the effects of low molecular weight carboxylic acids on the DFR-based moisture estimation [2]. The current paper presents a further discussion of this methodology along with a case study of DFR field measurements on a transformer.

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