Journal ArticleDOI
Quantum mechanical criteria for choosing appropriate voltage stabilization additives for polyethylene
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In this article, the authors developed a model for the electrical field within the polymer material contaminated with a sharp conducting defect (a metallic needle) and defined a parameter characterizing the resistance of polymer to electrical treeing.About:
This article is published in Polymer Degradation and Stability.The article was published on 2009-02-01. It has received 23 citations till now. The article focuses on the topics: Electrical treeing.read more
Citations
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Journal ArticleDOI
A new application area for fullerenes: voltage stabilizers for power cable insulation.
Markus Jarvid,Anette B. Johansson,Renee Kroon,Renee Kroon,Jonas Mattiasson Bjuggren,Harald Wutzel,Villgot Englund,Stanislaw Gubanski,Mats Andersson,Mats Andersson,Christian Müller +10 more
TL;DR: Fullerenes are shown to be efficient voltage-stabilizers for polyethylene, i.e., additives that increase the dielectric strength of the insulation material.
Journal ArticleDOI
Advances in high-field insulating polymeric materials over the past 50 years
TL;DR: In this article, the authors give an overview of the research carried out over the last 50 years that has contributed to the development of high-field polymer dielectric materials in a broad sense.
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Tailored side‐chain architecture of benzil voltage stabilizers for enhanced dielectric strength of cross‐linked polyethylene
Markus Jarvid,Anette B. Johansson,Jonas Mattiasson Bjuggren,Harald Wutzel,Villgot Englund,Stanislaw Gubanski,Christian Müller,Mats Andersson,Mats Andersson +8 more
TL;DR: In this article, the synthesis and physico-chemical properties of seven benzil-type voltage stabilizers are reported, which can be melt-processed with low-density polyethylene (LDPE) and are not affected by the LDPE cross-linking reaction induced by dicumyl peroxide.
Journal ArticleDOI
Thioxanthone derivatives as stabilizers against electrical breakdown in cross-linked polyethylene for high voltage cable applications
Harald Wutzel,Markus Jarvid,Jonas Mattiasson Bjuggren,Anette B. Johansson,Villgot Englund,Stanislaw Gubanski,Mats Andersson,Mats Andersson +7 more
TL;DR: In this article, the voltage stabilizing effect of a series of thioxanthone derivatives in cross-linked low-density polyethylene (XLPE) is reported, and the strongest increase in electrical tree initiation field under high-voltage alternating current (HVAC) conditions was 55% compared to reference XLPE after the addition of 0.3 wt% 9-oxo-9H-thioxanthen-2-yl methacrylate.
References
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Electrical degradation and breakdown in polymers
L.A. Dissado,John C. Fothergill +1 more
TL;DR: In this paper, the physical and chemical structure of polymers and their breakdown are discussed, along with the stochastic nature of break-down from empirical and modelling viewpoints, and practical implications and strategies for engineers.
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The role of trapped space charges in the electrical aging of insulating materials
TL;DR: In this article, the effect of trapped space charges on the aging of polymeric insulating materials subjected to thermo-electrical stress is investigated, and the model which derives from this approach is characterized by electrical and thermal thresholds, its parameters have a physical background, and it can be cast into a probabilistic framework.
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Direct measurement of space‐charge injection from a needle electrode into dielectrics
T. Hibma,H. R. Zeller +1 more
TL;DR: In this article, the authors show that space charge injection from a needle into a dielectric can be determined with a resolution of 10−15 °C, by using guarded needle electrodes and a charge compensating bridge circuit.
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DC Treeing Breakdown Associated with Space Charge Formation in Polyethylene
TL;DR: In this article, the authors investigated the characteristics of four kinds of trees, dc tree, short-circuit tree, polarity reversal tree and impulse tree, as a function of the voltage-rising speed, period of dc prestress, time before the shortcircuit or the application of a voltage of reversed polarity, impulse voltage, needle electrode material and temperature.
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Mechanism of electrical degradation and breakdown of insulating polymers
TL;DR: In this article, the electrical lifetime of polymers with saturated bonds was estimated based on the dissociation of chemical bonds initiated by the ionization of macromolecules in a high electric field.