Electrical tree simulation and breakdown in nanocomposite polymers: The role of nanoparticles

Pitsa, Despoina; Vardakis, G. E.; Danikas, M. G.; Chen, Y.

doi:10.1109/icsd.2010.5568242

Cited by 7 publications

(4 citation statements)

References 11 publications

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“…The role of Al 2 O 3 nanoparticles on the electrical treeing and breakdown strength in epoxy was investigated by Pitsa et al . It is known that, electrical treeing is a pre‐breakdown mechanism which causes long‐term degradation in polymer insulation.…”

Section: Properties Of Nanocomposites For High Voltage Insulatormentioning

confidence: 99%

A review of thermoplastic elastomeric nanocomposites for high voltage insulation applications

Ismail

Mariatti

2018

Polymer Engineering & Sci

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Thermoplastic elastomer (TPE) has gained acceptance as third generation of polymeric materials for high voltage (HV) insulators. The interesting features showed by TPEs were found to fulfill some particular requirements for HV insulations, at least for the distribution class applications, especially at light contamination environments. Introduction of nanomaterials which widely reported to give significant improvements in the electrical, mechanical, thermal and other properties of polymer has attracted attention to the synergistic properties of combining the two complementary technologies of thermoplastic elastomers and nanocomposites. In this paper, research works on various types of TPEs having promising performance as HV insulators are thoroughly reviewed. The emergence of nanocomposites in the electrical insulation field and the important properties consideration for HV insulators as well as the processing techniques of TPE nanocomposites are also discussed. Finally, some of the past and recent developments of TPE nanocomposites focusing on the electrical insulation properties are highlighted in this article. POLYM. ENG. SCI., 58:E36–E63, 2018. © 2018 Society of Plastics Engineers

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Section: Properties Of Nanocomposites For High Voltage Insulatormentioning

confidence: 99%

A review of thermoplastic elastomeric nanocomposites for high voltage insulation applications

Ismail

Mariatti

2018

Polymer Engineering & Sci

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“…Electrical treeing is one of the main causes for failure and damage in electrical power cable insulations [184]. Electrical trees are networks of very thin channels (including gases at high pressures) initiated near insulation and/or electrodes defects, which develop in the insulation during the electrical equipment operation [133,185]. In order to study the electrical treeing and to define the resistance to trees, two methods based on the local electric field intensification are generally used, the needle-plane electrodes method and the electron beam irradiation method.…”

Section: Electrical Treeing In Nanocompositesmentioning

confidence: 99%

“…In the presence of nanoparticles, the tree propagates through the polymer or the interfacial region and forms a zigzag pattern around the nanoparticles, thereby extending the pathway through the composite. Thus, the electrical tree needs more time to pave the way to the opposite electrode [185].…”

Section: Electrical Treeing In Nanocompositesmentioning

confidence: 99%

Polyethylene Nanocomposites for Power Cable Insulations

et al. 2018

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This review represents a comprehensive study of nanocomposites for power cables insulations based on thermoplastic polymers such as polyethylene congeners like LDPE, HDPE and XLPE, which is complemented by original results. Particular focus lies on the structure-property relationships of nanocomposites and the materials’ design with the corresponding electrical properties. The critical factors, which contribute to the degradation or improvement of the electrical performance of such cable insulations, are discussed in detail; in particular, properties such as electrical conductivity, relative permittivity, dielectric losses, partial discharges, space charge, electrical and water tree resistance behavior and electric breakdown of such nanocomposites based on thermoplastic polymers are described and referred to the composites’ structures. This review is motivated by the fact that the development of polymer nanocomposites for power cables insulation is based on understanding more closely the aging mechanisms and the behavior of nanocomposites under operating stresses.

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“…This insulating material has some advantages compared to other materials such as having water repellent properties, thermal properties, and excellent dielectric properties [1][2][3][4], which are characterized by high penetrating stress levels [5][6][7]. Also, polymer materials are lightweight and straightforward in the manufacturing process [8,9]. One of the inorganic polymer materials that have excellent electrical insulating properties is low-density polyethylene natural rubber (LDPE) with a density of 0.91-0.925 gr/cm 3 , which can have short or long branches.…”

Section: Introductionmentioning

confidence: 99%

The effect of silica content to partial discharge characteristic of low-density polyethene and natural rubber blend as the electrical insulator

et al. 2021

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The dielectric properties of low-density polyethylene natural rubber (LDPE-NR) biopolymeric insulating materials can be improved by adding the silica nanoparticles in a certain percentage of weight (w%). In the present study, four types of bio-nano polymeric samples were prepared. To each sample, the nanosilica particles with wt% 1.5%, 3%, 4.5% and 6%. As one characteristic of dielectric, the partial discharge (PD) characteristics, each sample has been tested for 1 hour under AC high voltage field, and the pulses were counted for each sample and grouped into positive and negative pulses. The PD pattern was also plotted based on X-Y axes, namely Φ-q-n pattern. It was found that the number of positive and negative partial discharge (PD) pulses for each silica sample after 60 minutes of testing varied for all samples. It is also found that samples with a higher percentage of nanosilica had fewer PD pulses. The PD pattern in lower w% of silica was identified in the 90 degrees mostly in containing This indicates that w% of nanosilica particles can improve the PD resistance or the insulation quality of LDPE-NR insulation materials.

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Electrical tree simulation and breakdown in nanocomposite polymers: The role of nanoparticles

Cited by 7 publications

References 11 publications

A review of thermoplastic elastomeric nanocomposites for high voltage insulation applications

A review of thermoplastic elastomeric nanocomposites for high voltage insulation applications

Polyethylene Nanocomposites for Power Cable Insulations

The effect of silica content to partial discharge characteristic of low-density polyethene and natural rubber blend as the electrical insulator

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