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Analysis and Selection of Electrothermal Life Models Used in Oil-Paper Insulation
Author(s): 
Pages: 17-21
Year: Issue:  2
Journal: TRANSACTIONS OF CHINA ELECTROTECHNICAL SOCIETY

Keyword:  油纸绝缘多因子老化寿命模型;
Abstract: 绝缘材料的寿命模型一直是国内外学者研究热点之一.本文对油纸绝缘进行电热联合加速老化,利用Weibull分布对多次试验得到的击穿寿命进行统计分析,求出平均寿命.并对国际上几种主要电-热联合老化寿命模型进行多元回归分析,估计出各模型的参数,计算理论预测寿命.最后比较各模型的理论预测寿命与用Weibull分布求出的平均寿命的误差,深入分析各数学模型产生不同误差的原因,得出FALLOU寿命模型是最适合本文所述油纸绝缘分析的寿命模型.
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