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Ansori Mahmud
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Performance Analysis of Transformer Oil Based on Dissolved Gas Analysis (DGA) Test Results Using Total Dissolved Combustible Gas (TDCG) Method at PLTU MUARA KARANG Ansori Mahmud
Journal Renewable Energy, Electronics and Control Vol 3, No 1 (2023): JURNAL JREEC
Publisher : Department of Electrical Engineering, Institut Teknologi Adhi Tama Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31284/j.jreec.2023.v3i1.4510

Abstract

Transformer is a device used to increase or decrease an AC voltage without any change in power. Not only main transformers are needed, but Auxilary transformers are very important as well. The method for identifying and analyzing gas dissolved in transformer oil is referred to as the DGA (Dissolved Gas Analysis) method. In this study, it identified the performance of transformer oil (Reverse Auxilary Transformer 3 4 PLTU MUARA KARANG). IEEE std standard. C57 - 104.2008 is used as a benchmark for the analysis of test results from the DGA. The analysis method used Four methods are the Key  Gas Method, the Roger Rat io Method  and the Dvual triangle Method, and the TDCG (Total Dissolved Combustible Gas) Method  . The calculation of the performance index of RAT 3 using the Key Gas Method, which gets a result of 90% : 10%. Then the Roger ratio method is Case 4 which is (Thermal 700 °C). The next method is Dvual triangle transformer oil conditions are at T3, T2 and T1. In the TDCG Analysis method, namely in condition 1, where transformer oil works optimally. Towards RAT 4 the key gas method shows a ratio of 82% : 7%. With Roger ratio conditions namely PD, T1 ,and T3. TDCG method the result of this DGA test is in condition 1, where  this condition is a normal operating condition for minyak transformer. That the condition of the transformer oil RAT 3 4 is Normal Operation according to its parameters.
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