Dielectric Behaviour of Defects in Power Transformer Insulation using Finite Element Method

Hussain, Rashid; Refaat, Shady S.

doi:10.1109/sgre46976.2019.9021069

Cited by 4 publications

(1 citation statement)

References 7 publications

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“…The finite element method (FEM) is widely used in the visualization of the electric stress in power transformer insulation [37]. Thus, it becomes widely used and very informative in determining the effect of the electric field on NFs [38], [39].…”

Section: B Influence Of Surface Charging Of Nanoparticles In Nanofluidmentioning

confidence: 99%

Dielectric Performance of Magneto-Nanofluids for Advancing Oil-Immersed Power Transformer

Hussain

Khan

et al. 2020

IEEE Access

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Recently, nanofluids are introduced in the power utilities for the dielectric performance enhancement of power transformer oil. The compactness and fault improvement of the power transformers has resulted in the necessity of next-generation insulating fluid with inflated dielectric properties. This paper investigates the dielectric performance of the novel ester oil-based magnetic nanofluids with different nanoparticles under different electric stress conditions. Two biodegradable fluids used as the base liquid for the experiment are synthetic ester oil and natural ester oil while three magnetic nanoparticles used to synthesize nanofluids are iron (II, III) oxide, cobalt (II, III) oxide, and iron phosphide. The concentrations of the nanoparticles are varied to optimize the characteristics of the prepared nanofluids. The dielectric breakdown and relative permittivity of the nanofluids have been experimentally investigated. Further, the breakdown predictions have been performed using Weibull statistical distribution-based regression analysis. The experimental results show the improvement in the characteristics of prepared nanofluids with the change in nanoparticle concentration as compared with the host fluids.

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Section: B Influence Of Surface Charging Of Nanoparticles In Nanofluidmentioning

confidence: 99%

Dielectric Performance of Magneto-Nanofluids for Advancing Oil-Immersed Power Transformer

Hussain

Khan

et al. 2020

IEEE Access

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Propagation Characteristics of Partial Discharges in an Oil-Filled Power Transformer

Kameli,

Refaat,

Ghrayeb

et al. 2023

2023 IEEE 17th International Conference on Compatibility, Power Electronics and Power Engineering (CPE-POWERENG)

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Improvement in Three-Dimension al Finite Element Modeling for High Voltage Power Transformer in Time Domain

Hussain

Refaat

2021

2021 IEEE 19th International Power Electronics and Motion Control Conference (PEMC)

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Dielectric Behaviour of Defects in Power Transformer Insulation using Finite Element Method

Cited by 4 publications

References 7 publications

Dielectric Performance of Magneto-Nanofluids for Advancing Oil-Immersed Power Transformer

Dielectric Performance of Magneto-Nanofluids for Advancing Oil-Immersed Power Transformer

Propagation Characteristics of Partial Discharges in an Oil-Filled Power Transformer

Improvement in Three-Dimension al Finite Element Modeling for High Voltage Power Transformer in Time Domain

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