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Application of Near-Infrared Spectroscopy to Measure the Water Content in Liquid Dielectrics

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  • Piotr Przybylek

    (Institute of Electric Power Engineering, Poznan University of Technology, Piotrowo 3A, 60-965 Poznan, Poland)

Abstract

The article discusses the methods used to measure the water content in liquid dielectrics. The pros and cons of currently used methods are presented. The main aim of the research was to check the possibility of using near-infrared spectroscopy to measure the water content in liquid dielectrics. On the basis of the conducted research, the absorbance bands are indicated that can be used to determine the water content in synthetic and natural esters. These bands are centered at 1901 and 1904 nm for natural and synthetic esters, respectively. The determined dependence of the absorbance on the water content in liquid dielectrics confirmed the linear nature of this relationship. Moreover, the influence of liquid aging degree on the result of absorbance measurements was checked. The verification of the method allowed for confirming the possibility of using near-infrared spectroscopy for the reliable quantitative analysis of water content in synthetic and natural esters.

Suggested Citation

  • Piotr Przybylek, 2022. "Application of Near-Infrared Spectroscopy to Measure the Water Content in Liquid Dielectrics," Energies, MDPI, vol. 15(16), pages 1-11, August.
    • Handle: RePEc:gam:jeners:v:15:y:2022:i:16:p:5907-:d:888498
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    References listed on IDEAS

    as
    1. Belén García & Alfredo Ortiz & Carlos Renedo & Diego Fernando García & Andrés Montero, 2021. "Use Performance and Management of Biodegradable Fluids as Transformer Insulation," Energies, MDPI, vol. 14(19), pages 1-18, October.
    2. 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.
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    Cited by:

    1. Piotr Przybylek, 2023. "Determination of Mineral Oil Concentration in the Mixture with Synthetic Ester Using Near-Infrared Spectroscopy," Energies, MDPI, vol. 16(17), pages 1-12, September.
    2. Zbigniew Nadolny, 2022. "Impact of Changes in Limit Values of Electric and Magnetic Field on Personnel Performing Diagnostics of Transformers," Energies, MDPI, vol. 15(19), pages 1-15, October.

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