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Impact of Low Molecular Weight Acids on Oil Impregnated Paper Insulation Degradation

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  • Kakou D. Kouassi

    (Ufr-SSMT Laboratory of Physics Condensed Matter and Technology, Université Félix Houphouet Boigny de Cocody-Abidjan, 22 BP 582 Abidjan 22, Côte d’Ivoire)

  • Issouf Fofana

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

  • Ladji Cissé

    (Ufr-SSMT Laboratory of Physics Condensed Matter and Technology, Université Félix Houphouet Boigny de Cocody-Abidjan, 22 BP 582 Abidjan 22, Côte d’Ivoire)

  • Yazid Hadjadj

    (Measurement Sciences and Standards, National Research Council Canada (NRC), Ottawa, ON K1A 0R6, Canada)

  • Kouba M. Lucia Yapi

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

  • K. Ambroise Diby

    (Ufr-SSMT Laboratory of Physics Condensed Matter and Technology, Université Félix Houphouet Boigny de Cocody-Abidjan, 22 BP 582 Abidjan 22, Côte d’Ivoire)

Abstract

Aging of a power transformer’s insulation system produces carboxylic acids. These acids—acetic, formic and levulinic—are absorbed by the paper insulating material, thus accelerating the degradation of the whole insulation system. In this contribution, the effect of these acids on the aging of oil-impregnated paper insulation used in power transformer is reported. A laboratory aging experiment considering different concentrations of these three acids was performed to assess their effect on the insulation system’s degradation. Each acid was individually mixed with virgin oil, and a mixture of acids was also blended with oil. The paper’s degradation was assessed by the degree of polymerization (DPv). It was found that the DPv of paper aged with formic acid decreased much faster in comparison to the other acids.

Suggested Citation

  • Kakou D. Kouassi & Issouf Fofana & Ladji Cissé & Yazid Hadjadj & Kouba M. Lucia Yapi & K. Ambroise Diby, 2018. "Impact of Low Molecular Weight Acids on Oil Impregnated Paper Insulation Degradation," Energies, MDPI, vol. 11(6), pages 1-13, June.
    • Handle: RePEc:gam:jeners:v:11:y:2018:i:6:p:1465-:d:150886
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    References listed on IDEAS

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    1. Fu Wan & Lingling Du & Weigen Chen & Pinyi Wang & Jianxin Wang & Haiyang Shi, 2017. "A Novel Method to Directly Analyze Dissolved Acetic Acid in Transformer Oil without Extraction Using Raman Spectroscopy," Energies, MDPI, vol. 10(7), pages 1-12, July.
    2. Radu Godina & Eduardo M. G. Rodrigues & João C. O. Matias & João P. S. Catalão, 2015. "Effect of Loads and Other Key Factors on Oil-Transformer Ageing: Sustainability Benefits and Challenges," Energies, MDPI, vol. 8(10), pages 1-40, October.
    3. Janvier Sylvestre N’cho & Issouf Fofana & Yazid Hadjadj & Abderrahmane Beroual, 2016. "Review of Physicochemical-Based Diagnostic Techniques for Assessing Insulation Condition in Aged Transformers," Energies, MDPI, vol. 9(5), pages 1-29, May.
    4. Xiaobo Wang & Chao Tang & Bo Huang & Jian Hao & George Chen, 2018. "Review of Research Progress on the Electrical Properties and Modification of Mineral Insulating Oils Used in Power Transformers," Energies, MDPI, vol. 11(3), pages 1-31, February.
    5. Kapila Bandara & Chandima Ekanayake & Tapan Saha & Hui Ma, 2016. "Performance of Natural Ester as a Transformer Oil in Moisture-Rich Environments," Energies, MDPI, vol. 9(4), pages 1-13, March.
    6. Issouf Fofana & Yazid Hadjadj, 2016. "Electrical-Based Diagnostic Techniques for Assessing Insulation Condition in Aged Transformers," Energies, MDPI, vol. 9(9), pages 1-26, August.
    7. Lei Peng & Qiang Fu & Yaohong Zhao & Yihua Qian & Tiansheng Chen & Shengping Fan, 2018. "A Non-Destructive Optical Method for the DP Measurement of Paper Insulation Based on the Free Fibers in Transformer Oil," Energies, MDPI, vol. 11(4), pages 1-9, March.
    8. Lefeng Cheng & Tao Yu, 2018. "Dissolved Gas Analysis Principle-Based Intelligent Approaches to Fault Diagnosis and Decision Making for Large Oil-Immersed Power Transformers: A Survey," Energies, MDPI, vol. 11(4), pages 1-69, April.
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    Cited by:

    1. Andrew Adewunmi Adekunle & Samson Okikiola Oparanti & Issouf Fofana, 2023. "Performance Assessment of Cellulose Paper Impregnated in Nanofluid for Power Transformer Insulation Application: A Review," Energies, MDPI, vol. 16(4), pages 1-32, February.
    2. Issouf Fofana & U. Mohan Rao, 2018. "Engineering Dielectric Liquid Applications," Energies, MDPI, vol. 11(10), pages 1-4, October.
    3. Tobias Münster & Peter Werle & Kai Hämel & Jörg Preusel, 2021. "Thermally Accelerated Aging of Insulation Paper for Transformers with Different Insulating Liquids," Energies, MDPI, vol. 14(11), pages 1-28, May.
    4. Leila Safiddine & Hadj-Ziane Zafour & Ungarala Mohan Rao & Issouf Fofana, 2019. "Regeneration of Transformer Insulating Fluids Using Membrane Separation Technology," Energies, MDPI, vol. 12(3), pages 1-13, January.
    5. Pawel Zukowski & Przemyslaw Rogalski & Konrad Kierczynski & Tomasz N. Koltunowicz, 2021. "Precise Measurements of the Temperature Influence on the Complex Permittivity of Power Transformers Moistened Paper-Oil Insulation," Energies, MDPI, vol. 14(18), pages 1-24, September.
    6. Pawel Zukowski & Przemyslaw Rogalski & Tomasz N. Koltunowicz & Konrad Kierczynski & Vitalii Bondariev, 2020. "Precise Measurements of the Temperature-Frequency Dependence of the Conductivity of Cellulose—Insulating Oil—Water Nanoparticles Composite," Energies, MDPI, vol. 14(1), pages 1-26, December.
    7. Enze Zhang & Jiang Liu & Chaohai Zhang & Peijun Zheng & Yosuke Nakanishi & Thomas Wu, 2023. "State-of-Art Review on Chemical Indicators for Monitoring the Aging Status of Oil-Immersed Transformer Paper Insulation," Energies, MDPI, vol. 16(3), pages 1-31, January.

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