Analisa Spektroskopi Inframerah Transformasi Fourier dan Gas Terlarut Terhadap Perubahan Gugus Fungsi Komposisi Minyak Ester

Saepul Rahmat, Suwarno Suwarno


This study is conducted to figure out the change in the function of ester oil as a result of the aging process - Kraft paper composite insulation. To duplicate actual conditions on a transformer, a sample of 800 ml biodiesel oil and 6 grams of Kraft paper were put together in a heat-resistant bottle. The sample was put under the same initial conditions through heating at 100 ° C for 24 hours. After initial conditions, then all samples of thermal were accelerated from 336 hours to 672 hours at 120 0C and 150 0C for actual conditions in the transformer. FTIR and DGA test are carried out at each aging period. The aging process shows several changes in functional groups in the ester oil and produced several dominant combustible gas compositions, including carbon monoxide (CO) and ethane (C2H6). These flammable gases arise due to the decomposition of the insulation which makes C = C functional groups in a particular spectrum produce ethane gas, thereby increasing the bonds of paper insulation.


Spektroskopi Inframerah Transformasi Fourier; Analisa Gas Terlarut; Gugus Fungsi; Biodiesel


C. Patrick McShane, J. Corkran, K. Rapp, and J. Luksich, “Natural ester dielectric fluid development,” in Proceedings of the IEEE Power Engineering Society Transmission and Distribution Conference, 2006, doi: 10.1109/TDC.2006.1668445.

E. Gockenbach and H. Borsi, “Performance and new application of ester liquids,” in IEEE International Conference on Conduction and Breakdown in Dielectric Liquids, ICDL, 2002, doi: 10.1109/icdl.2002.1022730.

Suwarno and J. Marbun, “Effect of thermal aging on the dielectric properties of mixture between mineral oil and natural ester,” in IEEE Region 10 Annual International Conference, Proceedings/TENCON, 2016, doi: 10.1109/TENCON.2015.7372866.

Suwarno, A. Munajad, and C. Subroto, “Dissolved gas analysis (DGA) and fourier transform infra red (FTIR) spectroscopy of thermal-aged natural ester-paper composite,” in 2017 52nd International Universities Power Engineering Conference, UPEC 2017, 2017, doi: 10.1109/UPEC.2017.8231890.

A. Munajad, C. Subroto, and Suwarno, “Study on the effects of thermal aging on insulating paper for high voltage transformer composite with natural ester from palm oil using fourier transform infrared spectroscopy (ftir) and energy dispersive x-ray spectroscopy (EDS),” Energies, 2017, doi: 10.3390/en10111857.

A. Munajad, C. Subroto, and Suwarno, “Fourier transform infrared (FTIR) spectroscopy analysis of transformer paper in mineral oil-paper composite insulation under accelerated thermal aging,” Energies, 2018, doi: 10.3390/en11020364.

A. Munajad, C. Subroto, and Suwarno, “Fourier transform infrared spectroscopy (ftir) analysis of transformer insulation paper in natural ester,” in International Conference on High Voltage Engineering and Power Systems, ICHVEPS 2017 - Proceeding, 2017, doi: 10.1109/ICHVEPS.2017.8225887.

Suwarno, M. Ilyas, and Rubadi, “Effects of temperature on dielectric properties of rhicinnus oils as insulating liquid,” in Proceedings of 2008 International Conference on Condition Monitoring and Diagnosis, CMD 2008, 2008, doi: 10.1109/CMD.2008.4580283.


U. M. Rao, Y. R. Sood, and R. K. Jarial, “Physiometric and Fourier transform infrared spectroscopy analysis of cellulose insulation in blend of mineral and synthetic ester oils for transformers,” IET Sci. Meas. Technol., 2017, doi: 10.1049/iet-smt.2016.0334.

S. Karmakar, A. Dutta, and H. Kalathiripi, “Investigation of the Effect of High Voltage Impulse Stress on Transformer Oil by Infrared Spectroscopy,” in Proceedings of 2019 International Conference on High Voltage Engineering and Technology, ICHVET 2019, 2019, doi: 10.1109/ICHVET.2019.8724336.

Suwarno, T. Widyanugraha, P. D. Hs, and Suharto, “Dielectric properties of silicone oil, natural ester, and mineral oil under accelerated thermal aging,” in Proceedings of 2012 IEEE International Conference on Condition Monitoring and Diagnosis, CMD 2012, 2012, doi: 10.1109/CMD.2012.6416360.

T. K. Saha, “Review of Modern Diagnostic Techniques for Assessing Insulation Condition in Aged Transformers,” in IEEE Transactions on Dielectrics and Electrical Insulation, 2003, doi: 10.1109/TDEI.2003.1237337.

T. K. Saha and P. Purkait, “Understanding the impacts of moisture and thermal ageing on transformer’s insulation by dielectric response and molecular weight measurements,” IEEE Trans. Dielectr. Electr. Insul., 2008, doi: 10.1109/TDEI.2008.4483479.

C. Perrier and A. Beroual, “Experimental investigations on mineral and ester oils for power transformers,” in Conference Record of IEEE International Symposium on Electrical Insulation, 2008, doi: 10.1109/ELINSL.2008.4570305.

S. Rahmat, S. Suwamo, and S. Aminuddin, “Effects of thermal ageing on the dielectric properties and dissolved gas analysis in ester from palm oil and Kraft composite paper insulation,” in 3rd IEEE Conference on Power Engineering and Renewable Energy, ICPERE 2016, 2017, pp. 209–213, doi: 10.1109/ICPERE.2016.7904873.

Suwarno and S. Aminudin, “Investigation on thermal aging of ester from palm oil and kraft paper composite insulation system for high voltage transformer,” WSEAS Trans. Environ. Dev., 2017.

C. P. McShane, J. L. Corkran, K. J. Rapp, and J. Luksich, “Aging of paper insulation retrofilled with natural ester dielectric fluid,” in Conference on Electrical Insulation and Dielectric Phenomena (CEIDP), Annual Report, 2003, doi: 10.1109/ceidp.2003.1254810.

T. Widyanugraha, R. Rachmad, Wendhy, and Suwarno, “DGA and tensile strength test on accelerated thermal aging of ester oil and kraft paper,” in Proceedings - 5th International Conference on Electrical Engineering and Informatics: Bridging the Knowledge between Academic, Industry, and Community, ICEEI 2015, 2015, doi: 10.1109/ICEEI.2015.7352491.

G. K. Frimpong, T. V. Oommen, and R. Asano, “A survey of aging characteristics of cellulose insulation in natural ester and mineral oil,” IEEE Electrical Insulation Magazine. 2011, doi: 10.1109/MEI.2011.6025367.


Article Metrics

Abstract view : 175 times
PDF (Bahasa Indonesia) - 53 times


  • There are currently no refbacks.

Creative Commons License
This work is licensed under a Creative Commons Attribution 4.0 International License.

Indexed by:



Editorial Office:

Pusat Penelitian dan Pengabdian Masyarakat (P3M)
Politeknik Negeri Cilacap
Jln. Dokter Soetomo No.1, Karangcengis Sidakaya Cilacap
Jawa Tengah 53212
Telepon: (0282) 533329


   Flag Counter


View My Stats


Creative Commons License
INFOTEKMESIN is licensed under a Creative Commons Attribution 4.0 International License.