Performance Analysis Based on Thermal Aging Tests of Sol-Gel and Polymer Insulated Wires by Enameling and Extrusion Technology

Giovana Pereira dos Santos Lima, Sonia Ait-Amar, Gabriel Velu, Philippe Frezel, Abdelhamid Boudiba, Mireille Poelman, Arnaud Nicolay and Pierre-Yves Herze
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Giovana Pereira dos Santos Lima: Laboratoire Systèmes Electrotechniques et Environnement (LSEE), UR 4025, Université Artois, 62400 Béthune, France
Sonia Ait-Amar: Laboratoire Systèmes Electrotechniques et Environnement (LSEE), UR 4025, Université Artois, 62400 Béthune, France
Gabriel Velu: Laboratoire Systèmes Electrotechniques et Environnement (LSEE), UR 4025, Université Artois, 62400 Béthune, France
Philippe Frezel: Green Isolight International, R&D, 62113 Labourse, France
Abdelhamid Boudiba: Materia Nova, ASBL, Parc Initialis, Av. Nicolas Copernic, 7000 Mons, Belgium
Mireille Poelman: Materia Nova, ASBL, Parc Initialis, Av. Nicolas Copernic, 7000 Mons, Belgium
Arnaud Nicolay: Esix Surface Technologies, R&D, 7822 Ghislenghien, Belgium
Pierre-Yves Herze: Esix Surface Technologies, R&D, 7822 Ghislenghien, Belgium

Energies, 2022, vol. 15, issue 14, 1-19

Abstract: This research activity aims to evaluate electrical insulation system (EIS) intended for electrical machine winding wires. The evaluation is based on mechanical, thermal, and electrical properties tests following international standards for enameled wires. Dielectric parameters such as dissipation factor, partial discharge inception voltage (PDIV), parallel capacitance, and parallel resistance behavior of different insulator configurations on twisted-pair samples are observed during thermal aging tests. Those configurations are formed of different combinations of dielectric layers based on conventional polymers (polyester-imide (PEI), polyamide-imide (PAI), polyimide (PI)) used as coating wires. A study using two mineral varnishes (silica-based) obtained by the sol-gel process integrated on these classical enamels an outer layer of extrusion of thermoplastic polymer with and without mineral fillers. Given the high consummation of energy and the use of unsustainable materials involving the production of wires, the principal interest of this work is to exploit new configurations of coating wire produced, with less environmental impact than conventional ones. This work investigates the impact of filled resins on the performance of insulating samples and the influence of the use of sol-gel solutions (mineral varnishes) on the insulated wire to increase the thermal class.

Keywords: thermal aging; enameled wire; extrusion; sol-gel; thermoplastic polymer; mineral fillers; dielectric parameters (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2022
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