PENENTUAN KONDISI TRANSFORMATOR BERDASARKAN KANDUNGAN GAS TERLARUT MENGGUNAKAN METODE SEGITIGA DUVAL

Abstract

Transformer failure may interrupt the electrical power delivery and causing a very high
cost to the utility. In order to prevent failure in the transformer, continuous condition monitoring
of a power transformer is necessary. Dissolved Gas Analysis (DGA) has been well known
method for transformer condition monitoring. A number of techniques have been developed in
order to assist engineers in interpreting the DGA test results. In this research, interpretation of
DGA test results using Fuzzy Logic approach based on Duval's Triangle is introduced. The
Fuzzy Logic was developed based on the mapping of the different areas within the Duval
Triangle. The program validation was carried out by comparing the output program with the
simulated fault condition. The analysis results indicated that the introduced approach has
successfully determined the condition of the tested transformers. This approach, thus, would
provide advantages over the conventional method in determining the transformer condition.