• 대한전기학회
Mobile QR Code QR CODE : The Transactions of the Korean Institute of Electrical Engineers
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Title Partial Discharge Resistance According to Frequency Acceleration Deterioration of Epoxy/Layered Silicate Nanocomposites
Authors 박재준(Park, Jae-Jun)
DOI https://doi.org/10.5370/KIEE.2013.62.12.1694
Page pp.1694-1699
ISSN 1975-8359
Keywords Epoxy nanocomposites ; Partial discharge resistance ; Frequency acceleration ; Surface degradation
Abstract Frequency accelerated partial discharge resistance (PDR) aging of epoxy/layered silicate nanocomposite with 1.5wt % additions of layered silicate was investigated in comparison with that of epoxy without layered silicate in terms of PD(partial discharge) erosion depth. It was found that the change in the erosion depth is far smaller in specimens with layered silicate than those without layered silicate nano particles. Frequency acceleration can be done from 60Hz to 1000Hz. But the depth of erosion is less proportional to frequency. Acceleration factor is almost 2 times between 500Hz and 1000Hz, but it is much less than about 8.3 times between 60Hz and 500Hz. This superior PD resistance is caused by the presence of nanofillers, anano-effect due to closely packed nanofillers, and strong chemical bonds at layered silicate nanofillers /resin interfaces.