Impact of Antioxidants on DC and AC Electrical Properties of XLPE-Based Insulation Systems

In this article, the impact of two different antioxidants (Irganox®1076 and PS802) on the electrical properties of a cross-linked polyethylene (XLPE) matrix is investigated and discussed. Materials were tested by means of dielectric spectroscopy, thermally stimulated depolarization curren...

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Main Authors: Simone Vincenzo Suraci, Daniele Mariani, Davide Fabiani
Format: Article
Language:English
Published: IEEE 2023-01-01
Series:IEEE Access
Subjects:
Online Access:https://ieeexplore.ieee.org/document/10188920/
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author Simone Vincenzo Suraci
Daniele Mariani
Davide Fabiani
author_facet Simone Vincenzo Suraci
Daniele Mariani
Davide Fabiani
author_sort Simone Vincenzo Suraci
collection DOAJ
description In this article, the impact of two different antioxidants (Irganox®1076 and PS802) on the electrical properties of a cross-linked polyethylene (XLPE) matrix is investigated and discussed. Materials were tested by means of dielectric spectroscopy, thermally stimulated depolarization currents (TSDC) and DC conductivity measurements to provide a comprehensive analysis for their applications under AC and DC electric fields. Results reveal that electrical properties are notably modified by the introduction of additives and the amplitude of variation is somehow proportional to the concentration of the additive with respect to the polymer matrix. In particular, TSDC measurements claim that antioxidants introduce deep traps (>1 eV) inside the base material and the density of these traps increases in accordance with antioxidant concentration. Moreover, due to the polar properties of these species, the complex permittivity raises with respect to base XLPE, and it adequately follows the antioxidant concentration. On the contrary, negligible variations in terms of DC conductivity are recorded.
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spelling doaj.art-3d5a16dfb1f04f4fa5c03e86283709202023-07-31T23:00:37ZengIEEEIEEE Access2169-35362023-01-0111761327614110.1109/ACCESS.2023.329749510188920Impact of Antioxidants on DC and AC Electrical Properties of XLPE-Based Insulation SystemsSimone Vincenzo Suraci0https://orcid.org/0000-0001-6258-5284Daniele Mariani1Davide Fabiani2https://orcid.org/0000-0003-4843-5508Department of Electrical Engineering, Laboratory of Innovative Materials for Electrical Systems (LIMES), University of Bologna, Bologna, ItalyDepartment of Electrical Engineering, Laboratory of Innovative Materials for Electrical Systems (LIMES), University of Bologna, Bologna, ItalyDepartment of Electrical Engineering, Laboratory of Innovative Materials for Electrical Systems (LIMES), University of Bologna, Bologna, ItalyIn this article, the impact of two different antioxidants (Irganox®1076 and PS802) on the electrical properties of a cross-linked polyethylene (XLPE) matrix is investigated and discussed. Materials were tested by means of dielectric spectroscopy, thermally stimulated depolarization currents (TSDC) and DC conductivity measurements to provide a comprehensive analysis for their applications under AC and DC electric fields. Results reveal that electrical properties are notably modified by the introduction of additives and the amplitude of variation is somehow proportional to the concentration of the additive with respect to the polymer matrix. In particular, TSDC measurements claim that antioxidants introduce deep traps (>1 eV) inside the base material and the density of these traps increases in accordance with antioxidant concentration. Moreover, due to the polar properties of these species, the complex permittivity raises with respect to base XLPE, and it adequately follows the antioxidant concentration. On the contrary, negligible variations in terms of DC conductivity are recorded.https://ieeexplore.ieee.org/document/10188920/XLPEconductivitypermittivityspace chargeantioxidantsadditives
spellingShingle Simone Vincenzo Suraci
Daniele Mariani
Davide Fabiani
Impact of Antioxidants on DC and AC Electrical Properties of XLPE-Based Insulation Systems
IEEE Access
XLPE
conductivity
permittivity
space charge
antioxidants
additives
title Impact of Antioxidants on DC and AC Electrical Properties of XLPE-Based Insulation Systems
title_full Impact of Antioxidants on DC and AC Electrical Properties of XLPE-Based Insulation Systems
title_fullStr Impact of Antioxidants on DC and AC Electrical Properties of XLPE-Based Insulation Systems
title_full_unstemmed Impact of Antioxidants on DC and AC Electrical Properties of XLPE-Based Insulation Systems
title_short Impact of Antioxidants on DC and AC Electrical Properties of XLPE-Based Insulation Systems
title_sort impact of antioxidants on dc and ac electrical properties of xlpe based insulation systems
topic XLPE
conductivity
permittivity
space charge
antioxidants
additives
url https://ieeexplore.ieee.org/document/10188920/
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AT danielemariani impactofantioxidantsondcandacelectricalpropertiesofxlpebasedinsulationsystems
AT davidefabiani impactofantioxidantsondcandacelectricalpropertiesofxlpebasedinsulationsystems