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Streamer Propagation and Breakdown in a Very Small Point-Insulating Plate Gap in Mineral Oil and Ester Liquids at Positive Lightning Impulse Voltage

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  • Pawel Rozga

    (Institute of Electrical Power Engineering, Lodz University of Technology, Stefanowskiego 18/22, 90-924 Lodz, Poland)

Abstract

This article presents the results of comparative studies on streamer propagation and breakdown in a point-insulating plate electrode system in mineral oil and two ester liquids. The studies were performed for a 10-mm gap and a positive standard lightning impulse. The work was focused on the comparison of light waveforms registered using the photomultiplier technique. The results indicated that both esters demonstrate a lower resistance against the appearance of fast energetic streamers than mineral oil. The reason for such a conclusion is that the number of lightning impulses supplied to the electrode system for which the above-mentioned fast streamers appeared at a given voltage level was always higher in the case of ester liquids than mineral oil. In terms of breakdown, the esters tested were assessed as more susceptible to the appearance of breakdown in the investigated electrode system. The number of breakdowns recorded in the case of esters was always greater than the corresponding number of breakdowns in mineral oil. This may be supposed on the basis of the obtained results that imply that, in both synthetic and natural ester, the formed breakdown channel, which bridged the gap through the surface of pressboard plate, is characterized by higher energy than in the case of mineral oil.

Suggested Citation

  • Pawel Rozga, 2016. "Streamer Propagation and Breakdown in a Very Small Point-Insulating Plate Gap in Mineral Oil and Ester Liquids at Positive Lightning Impulse Voltage," Energies, MDPI, vol. 9(6), pages 1-12, June.
    • Handle: RePEc:gam:jeners:v:9:y:2016:i:6:p:467-:d:72209
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    References listed on IDEAS

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    1. 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.
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    Cited by:

    1. Carl P. Wolmarans & Cuthbert Nyamupangedengu & Carina Schumann & Neil J. Coville & Marcelo M. F. Saba, 2022. "The Influence of Diethylaniline and Toluene on the Streamer Propagation in Cyclohexane between a Point-Plane Gap under Positive Impulse Voltage Stress," Energies, MDPI, vol. 15(13), pages 1-17, July.
    2. Zbigniew Nadolny & Grzegorz Dombek, 2018. "Electro-Insulating Nanofluids Based on Synthetic Ester and TiO 2 or C 60 Nanoparticles in Power Transformer," Energies, MDPI, vol. 11(8), pages 1-11, July.
    3. Shen, Zijia & Wang, Feipeng & Wang, Zhiqing & Li, Jian, 2021. "A critical review of plant-based insulating fluids for transformer: 30-year development," Renewable and Sustainable Energy Reviews, Elsevier, vol. 141(C).
    4. Ming Ren & Chongxing Zhang & Ming Dong & Rixin Ye & Ricardo Albarracín, 2016. "A New Switching Impulse Generator Based on Transformer Boosting and Insulated Gate Bipolar Transistor Trigger Control," Energies, MDPI, vol. 9(8), pages 1-15, August.
    5. Pawel Rozga & Marcin Stanek & Bartlomiej Pasternak, 2018. "Characteristics of Negative Streamer Development in Ester Liquids and Mineral Oil in a Point-To-Sphere Electrode System with a Pressboard Barrier," Energies, MDPI, vol. 11(5), pages 1-13, April.
    6. Pawel Rozga & Abderrahmane Beroual & Piotr Przybylek & Maciej Jaroszewski & Konrad Strzelecki, 2020. "A Review on Synthetic Ester Liquids for Transformer Applications," Energies, MDPI, vol. 13(23), pages 1-33, December.
    7. Huaqiang Li & Linfeng Xia & Shengwei Cai & Zhiqiang Huang & Jiaqi Li & Lisheng Zhong, 2021. "Influence of Molecule Structure on Lightning Impulse Breakdown of Ester Liquids," Energies, MDPI, vol. 14(4), pages 1-15, February.
    8. Issouf Fofana & Yazid Hadjadj, 2018. "Power Transformer Diagnostics, Monitoring and Design Features," Energies, MDPI, vol. 11(12), pages 1-5, November.

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