Preliminary Experimental Work on Nanocomposite Polymers: Small Partial Discharges at Inception Voltage, The Existence of Possible Charging Mechanisms Below Inception Voltage and the Problem of Definitions

Zou, Yuan; Danikas, M. G.; Zhao, Xu; Cheng, Yonghong

doi:10.2478/v10187-012-0016-8

Cited by 8 publications

(5 citation statements)

References 20 publications

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“…Addition of microfillers does not make any significant contribution to PD resistance compared to nanofillers, but they can increase the thermal conductivity, which is an advantage [ 149 ]. Similar results were obtained by Henk et al [ 20 ], Li et al [ 151 ], and Zhang et al [ 152 ], Imai et al [ 153 ].…”

Section: Properties Of (Nano)compositessupporting

confidence: 89%

Properties of Polymer Composites Used in High-Voltage Applications

et al. 2016

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Abstract:The present review article represents a comprehensive study on polymer micro/nanocomposites that are used in high-voltage applications. Particular focus is on the structure-property relationship of composite materials used in power engineering, by exploiting fundamental theory as well as numerical/analytical models and the influence of material design on electrical, mechanical and thermal properties. In addition to describing the scientific development of micro/nanocomposites electrical features desired in power engineering, the study is mainly focused on the electrical properties of insulating materials, particularly cross-linked polyethylene (XLPE) and epoxy resins, unfilled and filled with different types of filler. Polymer micro/nanocomposites based on XLPE and epoxy resins are usually used as insulating systems for high-voltage applications, such as: cables, generators, motors, cast resin dry-type transformers, etc. Furthermore, this paper includes ample discussions regarding the advantages and disadvantages resulting in the electrical, mechanical and thermal properties by the addition of micro-and nanofillers into the base polymer. The study goals are to determine the impact of filler size, type and distribution of the particles into the polymer matrix on the electrical, mechanical and thermal properties of the polymer micro/nanocomposites compared to the neat polymer and traditionally materials used as insulation systems in high-voltage engineering. Properties such as electrical conductivity, relative permittivity, dielectric losses, partial discharges, erosion resistance, space charge behavior, electric breakdown, tracking and electrical tree resistance, thermal conductivity, tensile strength and modulus, elongation at break of micro-and nanocomposites based on epoxy resin and XLPE are analyzed. Finally, it was concluded that the use of polymer micro/nanocomposites in electrical engineering is very promising and further research work must be accomplished in order to diversify the polymer composites matrices and to improve their properties.

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Section: Properties Of (Nano)compositessupporting

confidence: 89%

Properties of Polymer Composites Used in High-Voltage Applications

et al. 2016

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“…28 The electric breakdown strength of air voids is quite low ($3 MV/m), which results in inhomogeneous local electric field and significant reduction of the electric breakdown strength of the nanocomposites. 10,18,29 Moreover, the agglomerations of ceramic fillers and interface areas also have negative influences in electric breakdown properties of the nanocomposites. As the volume fraction of ceramic fillers increases, the agglomeration of ceramic fillers increases sharply and results in inhomogeneity.…”

Section: Electric Breakdown Strength and Energy Densitymentioning

confidence: 99%

Enhanced electric breakdown strength and high energy density of barium titanate filled polymer nanocomposites

Yu¹,

Niu²,

Xiang³

et al. 2013

Journal of Applied Physics

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Articles you may be interested inPoly(vinylidene fluoride) polymer based nanocomposites with significantly reduced energy loss by filling with core-shell structured BaTiO3/SiO2 nanoparticles Appl. Phys. Lett. 102, 102903 (2013); 10.1063/1.4795017 Enhanced dielectric properties of BaTiO3/poly(vinylidene fluoride) nanocomposites for energy storage applications J. Appl. Phys. 113, 034105 (2013); 10.1063/1.4776740 Epoxy-based nanocomposites for electrical energy storage. II: Nanocomposites with nanofillers of reactive montmorillonite covalently-bonded with barium titanate J. Appl. Phys. 108, 074117 (2010); 10.1063/1.3487471 Surface functionalized Ba 0.6 Sr 0.4 TiO 3 /poly(vinylidene fluoride) nanocomposites with significantly enhanced dielectric properties Appl. Phys. Lett. 95, 202904 (2009); 10.1063/1.3257371High-and low-field dielectric characteristics of dielectrophoretically aligned ceramic/polymer nanocomposites

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“…the possibility of having charging effects below inception, which in turn may shorten the lifetime of an insulation [65]. In [28], as well as in [26,[65][66][67][68], it is indicated that there may be some sort of damage even below either the yield stress or the so-called inception voltage. Such ideas may have some repercussion in estimating the remaining lifetime of insulation, especially if this is subjected to both electrical and…”

Section: Proposals For Future Researchmentioning

confidence: 99%

Propagation of Electrical Trees under the Influence of Mechanical Stresses: A Short Review

Danikas

Papadopoulos

Morsalin

2019

Eng. Technol. Appl. Sci. Res.

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The present paper deals with the phenomenon of electrical treeing in solid insulation, under the influence of mechanical stresses. In this short review, it is indicated that mechanical stressing can affect the propagation of electrical trees and –depending on whether it is tensile or compressive- it can facilitate (or render more difficult) the breakdown. In aged insulating materials, electrical trees can appear very quickly and can lead to breakdown.

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Preliminary Experimental Work on Nanocomposite Polymers: Small Partial Discharges at Inception Voltage, The Existence of Possible Charging Mechanisms Below Inception Voltage and the Problem of Definitions

Cited by 8 publications

References 20 publications

Properties of Polymer Composites Used in High-Voltage Applications

Properties of Polymer Composites Used in High-Voltage Applications

Enhanced electric breakdown strength and high energy density of barium titanate filled polymer nanocomposites

Propagation of Electrical Trees under the Influence of Mechanical Stresses: A Short Review

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