局部放电分析,监测油品状况

R. Patsch, J. Menzel, D. Benzerouk
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引用次数: 4

摘要

油中的局部放电受液体实际介电特性的影响,特别是降解产物可能影响局部放电现象。作为部分放电过程的结果,可能存在键断裂,并且电介质分子可能被降解和/或分裂成形成气相的较短长度的分子。这种第二相既可以在固体中产生,也可以在液体中产生。在固体中,气相的压力会随着气体分子的浓度而增加。在液体中,分子浓度的增加将导致气体体积的扩大,直到空隙内的压力与外部气体压力相对应。因此,根据法辰定律,在这个气相中会有气体排放。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Partial discharge analysis to monitor the condition of oils
Partial discharges in oils are influenced by the actual dielectric properties of the liquid and especially degradation products may influence the phenomena. As a consequence of partial discharge processes, there may be bond scission and molecules of the dielectric may be degraded and/or split into molecules of shorter lengths that form a gaseous phase. This second phase can be generated in solids as well as in liquids. In solids the pressure in this gas phase will increase in accordance to the concentration of gas molecules. In liquids an increase of the concentration of molecules will lead to an extension of the gas volume until the pressure within the void corresponds to the external gas pressure. Consequently, in accordance to Faschen's law there will be gas discharges in this gas phase.
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