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Streaming Electrification Phenomenon of Electrical Insulating Oils for Power Transformers

Author

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  • Maciej Zdanowski

    (Faculty of Electrical Engineering, Automatic Control and Informatics, Opole University of Technology, Prószkowska 76, 45-758 Opole, Poland)

Abstract

The subject matter of this study was the problem of the ECT (electrostatic charging tendency) of mineral insulation oils during their flow. The electrostatic charges generated may lead to partial discharges, and as a consequence, to the breakdown of a power transformer insulation system. In this study, the results of the ECT of mineral oils used in transformers were compared. The method of streaming electrification of insulation liquids using a flow-through system was used. The influence of flow speed, temperature, and the pipe material on the values of the electrification current and volume charge density q w were analyzed . The results obtained in this study should be taken into account regarding the operation of power transformers.

Suggested Citation

  • Maciej Zdanowski, 2020. "Streaming Electrification Phenomenon of Electrical Insulating Oils for Power Transformers," Energies, MDPI, vol. 13(12), pages 1-12, June.
    • Handle: RePEc:gam:jeners:v:13:y:2020:i:12:p:3225-:d:374637
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    Citations

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    Cited by:

    1. Maciej Zdanowski, 2020. "Streaming Electrification of Nycodiel 1255 Synthetic Ester and Trafo EN Mineral Oil Mixtures by Using Rotating Disc Method," Energies, MDPI, vol. 13(23), pages 1-14, November.
    2. Maciej Zdanowski, 2020. "Electrostatic Charging Tendency Analysis Concerning Retrofilling Power Transformers with Envirotemp FR3 Natural Ester," Energies, MDPI, vol. 13(17), pages 1-11, August.
    3. Dariusz Zmarzły & Paweł Frącz, 2021. "Measurement of Dielectric Liquid Electrification in the Shuttle System with Two Parallel Electrodes," Energies, MDPI, vol. 14(4), pages 1-16, February.
    4. Maciej Zdanowski, 2022. "Streaming Electrification of C 60 Fullerene Doped Insulating Liquids for Power Transformers Applications," Energies, MDPI, vol. 15(7), pages 1-14, March.
    5. Stefan Wolny & Adam Krotowski, 2020. "Analysis of Polarization and Depolarization Currents of Samples of NOMEX ® 910 Cellulose–Aramid Insulation Impregnated with Mineral Oil," Energies, MDPI, vol. 13(22), pages 1-18, November.
    6. Wenrong Si & Weiqiang Yao & Hong Guan & Chenzhao Fu & Yiting Yu & Shiwei Su & Jian Yang, 2021. "Numerical Study of Vibration Characteristics for Sensor Membrane in Transformer Oil," Energies, MDPI, vol. 14(6), pages 1-18, March.
    7. Adam Krotowski & Stefan Wolny, 2022. "Analysis of Polarization and Depolarization Currents of Samples of NOMEX ® 910 Cellulose–Aramid Insulation Impregnated with Synthetic Ester," Energies, MDPI, vol. 15(9), pages 1-15, April.

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