• Vikal Ingle

Dissolved gas-in-oil analysis (DGA) methods developed based on experience of experts and statistical formulations. These diagnostic methods are useful in determining faults in power transformer operation; computationally simple and work well on several faults. A standard IEEE C.57.104TM categorized risk of transformer into three levels on quantities of total dissolved combustible gases i.e. TDCG in the oil. However, overall performance of the transformer is depends on parameters other than gases in oil and subsystems attached to it. In this paper, sample of key gases along with allied parameters are considered for state assessment. Grey relation analysis is performed in standardizing the DGA interpretation to judge the fitness index of transformers.

Dissolved gas Analysis, Key gases, Grey relational analysis, Target Heart degree.

"Vikal Ingle", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.6, Issue 6, page no.817-819, June 2019, Available :http://www.jetir.org/papers/JETIR1907716.pdf

"Vikal Ingle", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.6, Issue 6, page no. pp817-819, June 2019, Available at : http://www.jetir.org/papers/JETIR1907716.pdf