金属化聚丙烯薄膜电容器寿命的估计

1991 Annual Report. Conference on Electrical Insulation and Dielectric Phenomena, Pub Date : 1991-10-20 DOI:10.1109/CEIDP.1991.763361

M. Ratra, H. Nagamani, S. Ganga

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引用次数: 1

摘要

金属化聚丙烯薄膜(MPPF)电容器的可靠性取决于薄膜的自愈性能。然而，聚丙烯(PPI)中的缺陷会导致电化学反应的局部放电，导致金属涂层的蒸发和氧化以及金属化e的衰退，在金属表面留下明显的痕迹。这一过程导致电介质的电容随老化而减小，耗散系数随老化而增大。

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Estimation of life of metallised polypropylen film capacitors

The reliability of metallised polypropy film (MPPF) capacitors can be quite high to the self healing property of the film. defects in the polypropylene (PPI however can lead to partial discharges electrochemical reaction, resulting evaporation and oxidation of metal coat and recession of the metallised e leaving clear marks on the metal1 surface . This process results in reduc in capacitance and increase in dissipa factor of the dielectric with ageing .

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来源期刊

1991 Annual Report. Conference on Electrical Insulation and Dielectric Phenomena,

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