The Effectiveness of Bentonite in Reducing Gas Content in the Isolation Oil Power Transformer Isolation

Abstract

Bentonite is a mining product that can be activated and used as drilling mud and oil absorber. This study uses a transformer oil isolation oil sample where the sample has a gas content that varies according to the age and condition of the transformer. The analysis of this study was carried out with several different treatments to several samples for further analysis using Gas Chromatograph with the Total Combustible Gas (TCG) Method. Variables used included stirred and unmatched samples and various immersion times, namely immersion for 12 hours, 24 hours, 48 hours and 72 hours. The best absorption results were obtained when the samples were soaked in bentonite for 72 hours with an absorption effectiveness of 96.7% in the stirred sample and 94.02% in the sample which was not stirred.