Abstract—The DGA(dissolved gas analysis) provides the inside view of transformer. By analyzing the gases we can observer the inner condition of any transformer. Many faults like arcing, overheating, partial discharge can only be detected by analyzing the gases only. In this paper different algorithms used for DGA analysis are described with their principles. This paper focuses on the literature review of different gas analysis techniques. It provides the overview of all techniques with their working methodology.

Index Terms—gas chromatography; key gas analysis; roger’s ratio; dornenburg’s; duval’s triangle; TDCG

Cite: Rohit Kumar Arora, "Different DGA Techniques for Monitoring of Transformers" International Journal of Electronics and Electrical Engineering, Vol. 1, No. 4, pp. 299-303, December 2013. doi: 10.12720/ijeee.1.4.299-303