Effect of magnetic field on partial discharge parameters in power cables and on the breakdown characteristics of impregnated paper insulation
Sign Up to like & getrecommendations! Published in 2018 at "Journal of Electrostatics"
DOI: 10.1016/j.elstat.2018.11.001
Abstract: Abstract This article demonstrates that parameters of partial discharges in power cables and impregnated paper insulation breakdown characteristics vary in presence of grid-frequency alternating magnetic field. Experimental and theoretical demonstrations confirm that magnetic field affects… read more here.
Keywords: power cables; impregnated paper; field; paper insulation ... See more keywords
Origin of dielectric processes in aged oil impregnated paper
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DOI: 10.1109/tdei.2017.006136
Abstract: Oil impregnated paper in power transformers deteriorates in long-term operation, which leads to the variations of its dielectric characteristics. This paper focuses on investigating the generation mechanism of the dielectric processes in oil impregnated paper… read more here.
Keywords: impregnated paper; paper; generation; dielectric processes ... See more keywords
A study on PD activities of oil-impregnated paper under pulse voltages using gas analysis
Sign Up to like & getrecommendations! Published in 2017 at "IEEE Transactions on Dielectrics and Electrical Insulation"
DOI: 10.1109/tdei.2017.006181
Abstract: Gassing problems and premature insulation failures in wind turbine transformers indicate reliability concerns about the insulation of such components. This fact necessitates investigating degradation of transformer insulation systems under high-dV/dt pulse voltages that exist in… read more here.
Keywords: pulse voltages; impregnated paper; energy; insulation ... See more keywords
Influence of moisture content on cellulose structure and breakdown strength of vegetable oil-impregnated paper
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DOI: 10.1109/tdei.2019.007987
Abstract: The performance of oil-impregnated paper significantly affects the safety and reliability of transformers. Previous studies on water reducing the breakdown strength of oil-impregnated paper have been mainly due to increasing charge carriers and conductivity. However,… read more here.
Keywords: impregnated paper; breakdown strength; oil impregnated;
Influence of Thermal Aging on Dielectric Properties of Natural Ester Oil-Impregnated Paper
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DOI: 10.1109/tdei.2023.3268039
Abstract: Mineral oil is widely used as a dielectric liquid in high-voltage direct-current (HVDC) converter transformers because of its excellent electrical insulating and cooling properties. Due to the low biodegradability and high fire risk of mineral… read more here.
Keywords: ester oil; oil; oil impregnated; natural ester ... See more keywords