PJSC “ROSSETI,” Moscow, Russia. The paper offers a review of the studies of dielectric properties, as well as aspects of development and application of various insulating fluids used as dielectrics in high-voltage transformers. Transformer oil has been used as a liquid dielectric in high-voltage equipment for more than 130 years. However, transformer oil is a non-renewable natural resource, has low chemical stability, low ignition temperatures, and cannot be decomposed by bioorganisms to yield safer compounds. All this has inspired a search for a dielectric fluid, which would possess the best insulation, environmental, and other performance characteristics. Currently, the focus of electrical engineering companies is gradually shifting toward such alternative biofluids as natural and synthetic compound esters. So far, their application has been limited to certain types of equipment, however, their insulation properties are being actively explored. Recently, researchers have also been studying the electrical insulation properties of nanofluids.
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Translated from Élektricheskie Stantsii, No. 5, May 2023, pp. 34 – 43. DOI: https://doi.org/10.34831/EP.2023.1102.5.005
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Lyutikova, M.N., Ridel, A.V. & Konovalov, A.A. Dielectric Liquids: Past, Present, Future (Review). Power Technol Eng 57, 615–622 (2023). https://doi.org/10.1007/s10749-024-01709-x
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DOI: https://doi.org/10.1007/s10749-024-01709-x