Influence of Defect Size on Insulation Deterioration of Epoxy Resins with Voids
| Autor: | Hiroshi Hasegawa, Tomotaka Yano, Yasutomo Otake, Takao Tsurimoto, Teruaki Ebato, Hiroshi Isoya, Naoaki Inoue, Takahiro Umemoto, Kenichi Suga, Manabu Yoshimura |
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| Rok vydání: | 2021 |
| Předmět: |
Condensed Matter::Quantum Gases
010302 applied physics Solid insulator Void (astronomy) Materials science Insulator (electricity) Astrophysics::Cosmology and Extragalactic Astrophysics Epoxy 01 natural sciences visual_art 0103 physical sciences visual_art.visual_art_medium Energy density Condensed Matter::Strongly Correlated Electrons Defect size Electrical and Electronic Engineering Composite material |
| Zdroj: | IEEE Transactions on Dielectrics and Electrical Insulation. 28:52-57 |
| ISSN: | 1558-4135 1070-9878 |
| DOI: | 10.1109/tdei.2020.008990 |
| Popis: | This study investigates the relationship between void size and insulation lifetime due to partial discharges (PDs) in internal voids. Experimental results clearly show that the larger the void size, the shorter the insulation lifetime, which decreases the lifetime n-value index of the voltage-time characteristics. The results also show a clear relationship between the insulation lifetime of a solid insulator having void defects and the PD energy generated in the void, which is related to the cumulative PD energy density per cycle. Therefore, we propose estimating the insulation lifetime of an insulator with voids by calculating the cumulative PD energy density per cycle. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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