The Influence of Temperature and Aging on the Characteristic Parameters of Dielectric Spectroscopy of Epoxy Resin Impregnated Paper Insulation
作者： Yongqiang Wang , Yu Luo , Changhui Feng
DOI: 10.1007/S13233-019-7136-Y
关键词:
摘要: This study aimed to investigate the effects of temperature and aging on characteristic parameters dielectric spectra epoxy resin impregnated paper insulation. A broadband test platform was established an equivalent physical model valve side dry-type bushing converter transformer developed. Different degrees thermal were performed at 130 °C for 0, 4, 8, 16, 32 days. In addition, variation complex permittivity loss factors different temperatures revealed. The results fitted using Havriliak-Negami (HN) relaxation model. extracted, influences HN analyzed. show that in low frequency range, exert greater permittivity. high have smaller effect. time satisfy relationship Arrhenius equation, strength increases exponentially with increasing temperature. τ, intensity Δe, shape parameter α, β can characterize degree linear between times, exponential
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sci-hub.se 参考文章(13)
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