FTIR and FDS assessment of mineral oil under low electrical discharge

• Autorzy: Boudraa Saliha , Benabed Fadila , Fofana Issouf , Mokhnache Leila

Identyfikatory

DOI

10.29354/diag/149994

• Języki publikacji: EN

Abstrakty

EN

Transformers are crucial elements in the transmission and distribution of electrical energy. The importance of diagnosing these equipments are two-fold: (1) the necessity of service reliability and (2) the likelihood to avoid economic and environmental concerns. Under service conditions, the electrical and thermal stresses or chemical contaminants may degrade the insulation oil inside the transformer and cause incipient failures or reduce its service life. Partial discharges well recognized to be among the most common stresses that can lead to slow but steady degradation of insulating oil in transformers. The present work aims at understanding the influence of low energy electrical discharge on mineral oil based on two spectroscopic methods: FTIR spectroscopy and Frequency Domain Spectroscopy (FDS). An electrical fault has been created by continuous discharge of 10 kV on the surface of various oil samples according to the ASTM D6180. From the FDS results, it was found that the amount of charge carriers and moisture increased with the aging time elapsed that influences the conduction phenomena and in turn, increases the dissipation factor. These results are confirmed by the FTIR results, which show that the intensity of the peak absorbance of the C–H and C-C functional group decreased with aging. The application of these two methods may help monitoring the condition of oil. A combined FTIR and FDS measurements highlighted the correlations between modifications in electrical properties and changes in the chemical structure of the oil under electrical accelerated ageing.

Słowa kluczowe

EN

mineral oil; diagnostic; low electrical discharge; infrared spectroscopy; dielectric spectroscopy

PL

olej mineralny; diagnostyka; wyładowanie elektryczne; spektroskopia w podczerwieni; spektroskopia dielektryczna

• Wydawca: Polskie Towarzystwo Diagnostyki Technicznej
• Czasopismo: Diagnostyka
• Rocznik: 2022
• Tom: Vol. 23, No. 2
• Strony: art. no. 2022208
• Opis fizyczny: Bibliogr. 24 poz., rys., tab.

Twórcy

autor

Boudraa Saliha

• Department of Electrical Engineering, University of Laghouat, Algeria

autor

Benabed Fadila

• Department of Electrical Engineering, University of Laghouat, Algeria

autor

Fofana Issouf

• Research Chair on the Aging of Power Network Infrastructure (ViAHT) Université du Québec à Chicoutimi, QC G7H 2B1, Canada

autor

Mokhnache Leila

• Higher National School of Renewable Energies, Environment & Sustainable Development), Batna, Algeria

Bibliografia

• 1. Fofana I, Hemmatjou H, Farzaneh M, Gockenbach E, Borsi H. Polarization and depolarization current measurements of oil impregnated paper insulation system under thermal runaway. 10th IEEE International Conference on Solid Dielectrics, 2010: 1-4. https://doi.org/10.1109/ICSD.2010.5568006.
• 2. Loiselle L, Fofana I, Sabau J, Magdaleno-Adame S, Olivares-Galvan JC. Comparative studies of the stability of various fluids under electrical discharge and thermal stresses. IEEE Transactions on Dielectrics and Electrical Insulation. 2016;22(5): 2491-2499. https://doi.org/10.1109/TDEI.2015.7311022.
• 3. Boudraa S, Mokhnache L, Fofana I. Artificial neural networks for predicting the gassing tendency under electrical discharge in insulating oil for exetended time. J. Electr. Eng., 2014;1:1-8.
• 4. ASTM D 6180 - 05. Standard test method for stability of insulating oils of petroleum origin under electrical discharge. 2005;10(3):6180.
• 5. Hadjadj Y, Fofana I, Jalbert J. Insulating oil decaying assessment by FTIR and UV-Vis spectrophotometry measurements. 2013 Annual Report Conference on Electrical Insulation and Dielectric Phenomena. 2013: 1310-1313. https://doi.org/10.1109/CEIDP.2013.6748297.
• 6. Qian Y, Huang Y, Fu Q, Zhong Z. Study on aging characteristics and chemical composition of hydrogenated transformer oil. Journal of Electrical Engineering and Technology. 2013;8(3): 588-594. https://doi.org/10.5370/JEET.2013.8.3.588.
• 7. Zhou Y, Hao M, Chen G, Jarman P, Wilson G. A new approach to understanding the frequency response of mineral oil. 2014 IEEE 18th International Conference on Dielectric Liquids (ICDL). 2014:3-6. https://doi.org/10.1109/ICDL.2014.6893143.
• 8. Pattanadech N. Electrical characteristic comparison of mineral oil and natural ester for transformer applications. 2017 International Electrical Engineering Congress (iEECON). 2017;8-10. https://doi.org/10.1109/IEECON.2017.8075764.
• 9. Zhou Y, Hao M, Chen G, Wilson G, Jarman P. Study of the dielectric response in mineral oil using frequency-domain measurement Study of the dielectric response in mineral oil using frequencydomain measurement. Journal of Applied Physics. 2014;115:124105. https://doi.org/10.1063/1.4869546.
• 10. Sawada A. Modeling of electrode polarization for electrolytic cells with a limited ionic adsorption. Phys. Rev. E. 2013;88:032406.
• 11. Yang L, Gubanski SM, Serdyuk YV, Schiessling J. Dielectric properties of transformer oils for hvdc applications. IEEE Transactions on Dielectrics and Electrical Insulation. 2012;19(6):1926-1933. https://doi.org/10.1109/TDEI.2012.6396949.
• 12. Abdelmalik AA, Fothergill JC, Dodd SJ. Electrical conduction and dielectric breakdown characteristics of alkyl ester dielectric fluids obtained from palm kernel oil. IEEE Trans. Dielectr. Electr.Insul. 2012;19(5): 1623-1632. https://doi.org/10.1109/TDEI.2012.6311509.
• 13. Hadjadj Y, Fofana I, Sabau J, Briosso E. Assessing insulating oil degradation by means of turbidity and UV/VIS spectrophotometry measurements. IEEE Transactions on Dielectrics and Electrical Insulation. 2015;22(5):2653-2660. https://doi.org/10.1109/TDEI.2015.005111.
• 14. Setayeshmehr A, Fofana I, Eichler C, Akbari A, Borsi H, Gockenbach E. Dielectric spectroscopic measurements on transformer oil-paper insulation under controlled laboratory conditions. IEEE Trans. Dielectr. Electr. Insul. 2008;15(4):1100-1111. https://doi.org/10.1109/TDEI.2008.4591233.
• 15. Kalathiripi H, Karmakar S. Analysis of transformer oil degradation due to thermal stress using optical spectroscopic techniques. Int. Trans. Electr. Energy Syst. 2017;27(9):2346. https://doi.org/10.1002/etep.2346.
• 16. Chacon G, Maria DC, Vitória DF, Heloísa DM, Clemente G. Influence of the atmosphere on the decomposition of vegetable oils: study of the profiles of FTIR spectra and evolution of gaseous products. J. Therm. Anal. Calorim. 2020;140:2247-2258. https://doi.org/10.1007/s10973-019-08960-9.
• 17. Mehmood MA, Nazir MT, Li J, Wang F, Muaaz M. Comprehensive investigation on service aged power transformer insulating oil after decades of effective performance in field. Arab. J. Sci. Eng., 2020 45, pages 6517-6528. https://doi.org/10.1007/s13369- 020-04559-7.
• 18. Sai RS, Rafi J, Farook S, Kumar NMG, Parthasarathy M, Bakkiyaraj RA. Degradation studies of electrical, physical and chemical properties of aged transformer oil. Journal of Physics: Conference Series. 2020:1706.
• 19. R. Sanghi. Chemistry behind the life of a transformer. Resonance. 2003;8:17-23. https://doi.org/10.1007/BF02837865.
• 20. Gomez NA, Abonia R, Cadavid H, Vargas IH. Chemical and spectroscopic characterization of a vegetable oil used as dielectric coolant in distribution transformers. J. Braz. Chem. Soc. 2011;22(12):2292-2303. https://doi.org/10.1590/S0103-50532011001200009.
• 21. Rao UM, Fofana I, Rajan K. Mineral oil and ester based oil / paper insulation decaying assessment by ftir measurements. Proceedings of the 21st International Symposium on High Voltage Engineering. 2019: 615-924. https://doi.org/10.1007/978-3-030-31676-1_58.
• 22. Zhang SW. Tribology of Elastomers. Elsevier, 2004;47:227-246.
• 23. Luo YR. Handbook of bond dissociation energies in organic compounds. CRC Press. 2003.
• 24. IEEE Guide for the Interpretation of Gases Generated in Mineral Oil-Immersed Transformers. IEEE Std C57.104-2019. 2019:1-98. https://doi.org/10.1109/IEEESTD.2019.8890040.

Uwagi

Opracowanie rekordu ze środków MEiN, umowa nr SONP/SP/546092/2022 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2022-2023).