Dissolved Gas Analysis (DGA) of natural ester oils under arcing faults

Abstract

Dissolved gas analysis is one of diagnostic technique for monitoring the internal condition of transformer. However, DGA analyses for natural ester especially palm oil and rice bran oil still lacking. Therefore, this paper presents the investigation gassing behaviour under lightning impulse breakdown used namely Palm oil (PO) and Rice Bran oil (RBO). The DGA result showed that C2H H2 detected the highest amount of gases for both samples experiments were interpreted in different DGA method such as Dornenburg ratio, Roger ratio, IEC Gas method and Duval Triangle method to find the best technique for natThe conducted experiment shows that PO and RB and gassing characteristics to mineral oil, but still requiring modification of design and operating parameters.