Hyun-joo Park, and Suk-bun Kim, “Proposals for an Optimum Analysis Method for Furanic Compound in Insulating Oil for Paper Degradation Assessment,” KIEE Summer Conference, July 2009.

Choon-Dong Kim, Chol-Gyu Kim, and Sh-Hyun Park, “Development of Portable Dissolved Gas Analyzer Using photoacoustic spectroscopy,” Journal of the Korea Institute of Information and Communication Engineering, vol. 17, no. 10, pp. 2431-2438, 2013.DOI:10.6109/jkiice.2013.17.10.2431

Hyeong-Gu Kang, Jin-Young Jang, Seongguen Jang, Insu Kim, “A transformer lifetime prediction and failure diagnosis algorithm using probability theories,” The 53rd KIEE Summer Conference, Yeosu Expo Convention Center Expo Hall, Yeosu-si, Jeollanam-do, South Korea, July, 2022.

Haksun Im, Beopsoo Kim, Insu Kim, “Study on Optimizing Transformer Replacement Cycle,” The Korean Institute of Illumination and Electrical Installation Engineers, Proceedings of 2019 KIIEE Fall Annual Conference, November, 2019.

Sangmin Ryu, and Seungpil Moon, “A Basic Study on the Status Diagnosis of Transformer Using Physical Properties of Insulating oil,” KIEE Summer Conference, pp. 1720-1721, July 2020.

Seungpil Moon, Shyung Kang, Sun-jin Hwang, SJongkee Choi, “Basic study on the method of utilizing the transmittance of insulation oil for diagnosing a transformer,” KIEE Summer Conference, pp. 350-351, July 2020.

Al Hafez, NS Gerges, KI El-nagar, SE Mohamed, Al Heshem, “Treatment of aged transformer oil using dry sludge in lab-scale refining unit,” Journal of Oil, Gas and Coal Engineering, vol. 2, no. 1, pp. 010-022, October 2015.

ISLAM Md Mominul, LEE Gareth, HETTIWATTE Sujeewa Nilendra, “A review of condition monitoring techniques and diagnostic tests for lifetime estimation of power transformers,” Electrical Engineering, vol. 100, pp. 581-605, 2018.DOI:10.1007/s00202-017-0532-4

Michel Duval, and Alfonso Depablo, “Interpretation of Gas-In-Oil Analysis Using New IEC Publication 60599 and IEC TC 10 Database,” IEEE Electrical Insulation Magazine, vol. 17, no. 2, pp. 31-41, 2001.DOI:10.1109/57.917529

Michel Duval, “The Duval Triangle for Load Tap Changers, Non-Mineral Oils and Low Temperature Faults in Transformer,” IEEE Electrical Insulation Magazine, vol. 24, no. 6, pp. 22-29, 2008.DOI:10.1109/MEI.2008.4665347

Irungu, G. K., A. O. Akumu, and J. L. Munda. “Fault diagnostics in oil filled electrical equipment: Review of duval triangle and possibility of alternatives,” 2016 IEEE Electrical Insulation Conference (EIC). IEEE, 2016.DOI:10.1109/EIC.2016.7548688