• Hasnira Hasnira Polteknik Negeri Batam
  • Hadi Rofii' Haekal Polteknik Negeri Batam


Dissolved Gas Analaysis, Key Gas, Roger Ratio, Doernenburg Ratio, Duval Triangle


This study discusses the application of four Dissolved Gas Analysis (DGA) methods in identifying failure indicators in power transformers. Transformer failures can occur in the form of thermal and electrical failures, producing hazardous gases known as fault gases. The insulating oil used in power transformers plays a role in cooling and dissolving these dangerous gases to prevent unrestricted circulation. Determining the type and concentration of gases dissolved in the oil can provide information about transformer failure indicators. Therefore, DGA analysis is conducted to determine effective methods for identifying these failure signs. Oil samples were taken from transformers and analyzed using four different DGA methods. The DGA analysis results revealed varying levels of gas concentration. Based on the analysis results using the Key Gas Method, Roger's Ratio Method, Doernenburg's Ratio Method, and Duval's Triangle Method, it was found that the transformers experienced thermal damage. The Duval's Triangle Method analysis concluded that two transformers had overheated. Thus, the Duval's Triangle Method analysis can be considered an effective method for identifying disturbances in power transformers due to its simple yet effective calculations


Smaisim, Ghassan Fadhil, Azher M. Abed, and Hosein Alavi. "Analysis of pollutant emission reduction in a coal power plant using renewable energy." International Journal of Low-Carbon Technologies 18 (2023): 38-48.

Cholis, Nur, and Rizki Noor Prasetyono. "Analysis Of The Effect Of Magnetic Location And Addition Of Berrier Flux On Back EMF Value On Pmsg 12S8P Using FEM Method." Journal of Electronic and Electrical Power Applications 2.1 (2022): 65-71.

Madaminov, M. R. "Experimental study of operating modes of an uninterruptible power supply source using a wind generator as the primary source." International Journal of Advance Scientific Research 3.10 (2023): 125-131.

Setiabudy, Rudy. "Transformator pada Sistem Transmisi Listrik." Materi kuliah Transmisi dan Distribusi Daya Listrik, Depok (2008).

Tseng, Kuo‐Ching, En‐Ming Shih, and Guan‐Yu Huang. "An integrated of buck and half‐bridge high step‐down converter utilizing single‐stage driving design for high‐efficiency energy conversions." International Journal of Circuit Theory and Applications 51.2 (2023): 750-763.

Torres, Jorge, et al. "Implementation of a Condition Monitoring Software for Mineral Oil-Immersed Transformers via Dissolved Gas In-Oil Analysis." 2021 IEEE International Conference on Environment and Electrical Engineering and 2021 IEEE Industrial and Commercial Power Systems Europe (EEEIC/I&CPS Europe). IEEE, 2021.

Kim, Y. M., et al. "Development of dissolved gas analysis (DGA) expert system using new diagnostic algorithm for oil-immersed transformers." 2012 IEEE International Conference on Condition Monitoring and Diagnosis. IEEE, 2012.

Putra, Muhammad Akmal Afibuddin, et al. "Dissolved Gas Analysis of Generator Step Up Transformer in Grati Power Plant Using Random Forest Based Method." Journal of Telecommunication Network (Jurnal Jaringan Telekomunikasi) 13.1 (2023): 51-58.

Schneider, Kevin P., et al. "Analytic considerations and design basis for the IEEE distribution test feeders." IEEE Transactions on power systems 33.3 (2017): 3181-3188

Sokolov, V., Z. Berler, and V. Rashkes. "Effective methods of assessment of insulation system conditions in power transformers: a view based on practical experience." Proceedings: Electrical Insulation Conference and Electrical Manufacturing and Coil Winding Conference (Cat. No. 99CH37035). IEEE, 1999.

Sodilesmana, Anggy Eri, Nasrulloh Nasrulloh, and Rizki Noor Prasetyono. "The Effect Of Loading And Unbalanced Load On Determination Of Life Loss Of Distribution Transformers.: Array." Journal of Electronic and Electrical Power Applications 1.2 (2021): 1-7.

Darmana, Tasdik, Syarif Hidayat, and Miftahul Khoir. "Analisis Pemerataan Beban Pada Transformator Dari Sisi Sekunder Terhadap Penyaluran Tenaga Listrik Di Pt. Pln (Persero) Up3 Cengkareng." Jurnal Ilmiah Teknik 2.2 (2023): 73-80.

Ali, Mohd Syukri, et al. "Conventional methods of dissolved gas analysis using oil-immersed power transformer for fault diagnosis: A review." Electric Power Systems Research 216 (2023): 109064.

Tang, Mingcong, et al. "Density Functional Theory Study of Adsorption of Dissolved Gas in Transformer Oil on a Metal (Ag, Pd, and Pt)-Doped NbSe2 Monolayer." ACS Applied Nano Materials 6.7 (2023): 5517-5526.

Naibaho, Nurhabibah. "Analisis Kegagalan Transformator Berdasarkan Hasil Pengujian DGA." PROSIDING SEMINAR NASIONAL ENERGI & TEKNOLOGI (SINERGI). 2018.

Equipment, Oil-Filled Electrical. "Sampling of Gases and Analysis of Free and Dissolved Gases—Guidance." Standard IEC 60567 (2011).

Shidiq, Syahril, Aeri Sujatmiko, and Abdul Hafid Paronda. "Pengujian Dissolved Gas Analysis (DGA) Pada Trafo Tenaga 150/20kv 60mva Di Gardu Induk Tambun." JREC (Journal of Electrical and Electronics) 7.1 (2019): 43-52.

Meira, Matias, et al. "Comparison of gases generated in mineral oil and natural ester immersed transformer's models." 2020 IEEE Electrical Insulation Conference (EIC). IEEE, 2020.

Oktaviani, Ria, and Yohannes M. Simanjuntak. "Analisis Pengujian Dga Menggunakan Metoda Chromatography Gas Sebagai Indikasi Kegagalan Minyak Isolasi Transformator Gi 150 Kv Kota Baru." Jurnal Teknik Elektro Universitas Tanjungpura 2.1 (2020).

Ali, Mohd Syukri, et al. "Conventional methods of dissolved gas analysis using oil-immersed power transformer for fault diagnosis: A review." Electric Power Systems Research 216 (2023): 109064.

Nanfak, Arnaud, et al. "Hybrid DGA method for power transformer faults diagnosis based on evolutionary k-means clustering and dissolved gas subsets analysis." IEEE Transactions on Dielectrics and Electrical Insulation (2023).

Bakar, Norazhar Abu, et al. "Improvement of transformer dissolved gas analysis interpretation using J48 decision tree model." IAES International Journal of Artificial Intelligence 12.1 (2023): 48.

Wajid, Abdul, et al. "Comparative Performance Study of Dissolved Gas Analysis (DGA) Methods for Identification of Faults in Power Transformer." International Journal of Energy Research 2023 (2023).

Araujo, Mateus M., et al. "Enhancing gas formation theory assessment in power transformers by using decision tree transparency and new guess into decomposition temperatures of insulating mineral oil." Neural Computing and Applications (2023): 1-8.

Manoj, T., et al. "Alternate and effective dissolved gas interpretation to understand the transformer incipient faults." IEEE Transactions on Dielectrics and Electrical Insulation (2023).




How to Cite

H. Hasnira and H. Rofii’ Haekal, “USE OF THE DGA METHOD IN IDENTIFYING PROBLEMS ON 2 POWER TRANSFORMERS 2MVA 11.5KV- 0.4KV”, jeepa, vol. 3, no. 2, pp. 173–180, Nov. 2023.