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Effect of Conducting, Semi-Conducting and Insulating Nanoparticles on AC Breakdown Voltage and Partial Discharge Activity of Synthetic Ester: A Statistical Analysis [PDF]
Nanomaterials, 2022 This paper is aimed at studying the influence of conducting (Fe3O4), semi-conductive (ZnO), and insulating (ZrO2, SiO2, and Al2O3) nanoparticles (NPs) at various concentrations on the AC dielectric strength of MIDEL 7131 synthetic ester (SE) and partial ...
Hocine Khelifa +2 more
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A Review on Synthetic Ester Liquids for Transformer Applications
Energies, 2020 Synthetic esters have become more and more popular in last few decades, explaining the increasing number of units filled with this liquid year by year.
Pawel Rozga +4 more
doaj +4 more sources
Influence of Emerging Semiconductive Nanoparticles on AC Dielectric Strength of Synthetic Ester Midel-7131 Insulating Oil. [PDF]
Materials (Basel), 2022 Exploring impressively effective dielectric nanofluids for transformers to improve dielectric strength and thermal stability is indispensable. It is crucial to determine the modification mechanism of dispersed nanomaterials in insulating oil for ...
Fasehullah M +3 more
europepmc +2 more sources
Energies, 2023 Currently, synthetic ester is gaining a bigger share in the market. This type of insulating liquid is used both in new and operated transformers filled with mineral oil.
Piotr Przybylek
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A DFT study on the molecular properties of synthetic ester under the electric field
Open Physics, 2021 Synthetic ester can replace the mineral oil traditionally used in transformers to avoid the environmental problems caused by oil leakage. However, the fast discharge phenomenon in a high electric field in transformers using synthetic ester seems to ...
Wang Yachao +3 more
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IEEE Access, 2022 This paper deals with the study of the AC breakdown voltage (BDV) and partial discharges (PDs) activity of synthetic ester-based nanofluids (NF) with two kinds of carbonic nanoparticles (NPs), namely graphene (Gr) and fullerene (C60); the synthetic ester
Hocine Khelifa +2 more
doaj +2 more sources
IEEE Access, 2019 The gases generated by electrical and thermal faults are similar in the case of mineral oil, synthetic ester, and natural ester. However, there are considerable differences in the amount of the generated gases and their solubility in these liquids, what ...
Piotr Przybylek, Jaroslaw Gielniak
doaj +2 more sources
Energies, 2020 This paper presents the results of laboratory tests of cellulose insulation drying with the use of synthetic ester. The effectiveness of the drying process was investigated depending on the initial moisture of cellulose samples (2%, 3%, and 4%), ester ...
Piotr Przybylek +3 more
doaj +2 more sources
DC Breakdown Voltage of Synthetic Ester Liquid-Based Nanofluids
IEEE Access, 2020 Synthetic esters are potential substitutes for mineral oil in power transformers owing to their biodegradability and excellent dielectric withstand. Furthermore, the addition of certain nanoparticles improves the cooling property of liquids.
Abderrahmane Beroual +2 more
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Masked É-Lithio Ester Enolates: Synthetic Applications [PDF]
Molecules, 2004 The protocol of lithiation by means of lithium and a catalytic (5% molar) amount of DTBB (4,4’-di-tert-butylbiphenyl), applied to É-chloro ortho ester 6 under Barbier-type conditions gives, after final acid-catalyzed methanolysis, the ...
Isidro M. Pastor +2 more
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