ERRATUM: Mineral oil based high permittivity CaCu3Ti4O12 (CCTO) nanofluids for power transformer application

Prasath, R. T. Arun Ram; Roy, Nirmal Kumar; Mahato, Sankar Narayan; Thomas, P.

doi:10.1109/tdei.2017.007031

Cited by 4 publications

(4 citation statements)

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“…In this section, the effect of adding nanoparticles to the dielectric oils on the streamer formation is analyzed. These dielectrics have rupture voltages higher than for mineral oils; this is because the electrons are attracted to the nanoparticles, remaining attached to them and preventing their free movement [15].…”

Section: Streamer In Nanofluidmentioning

confidence: 99%

Comparison of Positive Streamers in Liquid Dielectrics with and without Nanoparticles Simulated with Finite-Element Software

et al. 2018

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Abstract:In this paper, a comparison of positive streamer diffusion propagation is carried out in three configurations of oil transformers: mineral transformer oil, mineral oil with solid dielectric barriers, and a nanofluid. The results have been solved using a finite-element method with a two-dimensional (2D) axi-symmetric space dimension selected. Additionally, previous results from other research has been reviewed to compare the results obtained. As expected, it is confirmed that the nanoparticles improve the dielectric properties of the mineral oil. In addition, it is observed that the dielectric solid blocks the propagation of the streamer when it is submerged with a horizontal orientation, thus perpendicular to the applied electric field. The computer used, with four cores (each 3.4 GHz) and 16 GB of RAM, was not sufficient for performing the simulations of the models with great precision. However, with these first models, the tendency of the dielectric behavior of the oil was obtained for the three cases in which the streamer was acting through the transformer oil. The simulation of these models, in the future, in a supercomputer with a high performance in terms of RAM memory may allow us to predict, as an example, the best concentration of nanoparticles to retard the streamer inception. Finally, other dielectric issues will be predicted using these models, such as to analyze the advantages and drawbacks of the presence of dielectrics inside the oil transformer.

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Section: Streamer In Nanofluidmentioning

confidence: 99%

Comparison of Positive Streamers in Liquid Dielectrics with and without Nanoparticles Simulated with Finite-Element Software

et al. 2018

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“…In [8], surface-modified alumina (Al 2 O 3 ) and titania (TiO 2 ) nanoparticles were inserted to the base oil to increase the BDV against nanoparticles concentration until a certain level. The enhancement in dielectric properties was extended to aged transformer oil [9,10], where adding TiO 2 nanoparticles could decrease effectively the dielectric dissipation factor and increase the breakdown strength of thermally aged oil.…”

Section: Introductionmentioning

confidence: 99%

Multiple nanoparticles for improvement of thermal and dielectric properties of oil nanofluids

Mansour

Shaalan

Ward

et al. 2019

IET Science, Measurement & Technology

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“…Afterward, many magnetic [58]- [64], conductive [65]- [75], semiconductive [67], [76]- [86], insulated [87]- [90] natured nanoparticles are dispersed in different dielectric liquids to achieve improved dielectric properties without compromising physio-thermal properties. The dispersion stability [91]- [93], influence of the moisture [83], [87], [94]- [98], temperature, role of surfactant [71], [99] and nanoparticle's surface modification [84] are also researched. However, the development of nanofluids are still hindered by several factors such as the lack of agreement between results, poor characterization of suspensions, and the lack of theoretical understanding of the mechanism.…”

Section: A Introduction To Nanofillersmentioning

confidence: 99%

State-of-Art in Nano-Based Dielectric Oil: A Review

Ahmad

Khan

et al. 2019

IEEE Access

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Dielectric fluids or commonly oils serve as the protection of any power utility components, which make it selection crucial for utility. Due to its significance, consistent research has been performed and new insulants have been introduced for power utilities to attain better, reliable, and a longer lifespan than the former one. Nanotechnology-based insulating liquids are still under research but show the potential to achieve the objective of smart and futuristic insulation. This paper provides the critical review for the development of insulating liquid and promising results shown by the nanoparticles dispersed fluid termed nanofluids. The state-of-the-art research illustration includes synthesis, experimental investigation, and dielectric and physio-mechanical characterization of nanofluids. The enhancements in the characteristics of nanofluids are elucidated along with its possible mechanisms and shortcomings. INDEX TERMS Liquid dielectric, nanofluids, mineral oil, natural oil, nanoparticles, dielectric response, breakdown characteristics.

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ERRATUM: Mineral oil based high permittivity CaCu₃Ti₄O₁₂ (CCTO) nanofluids for power transformer application

Cited by 4 publications

References 0 publications

Comparison of Positive Streamers in Liquid Dielectrics with and without Nanoparticles Simulated with Finite-Element Software

Comparison of Positive Streamers in Liquid Dielectrics with and without Nanoparticles Simulated with Finite-Element Software

Multiple nanoparticles for improvement of thermal and dielectric properties of oil nanofluids

State-of-Art in Nano-Based Dielectric Oil: A Review

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