电力变压器油中丙酮体积分数分析方法的研究

介绍了国内外变压器绝缘老化绝缘诊断的发展及现状,建立了用顶空气相色谱法测定变压器油中微量丙酮的新方法,并对顶空法的样品预处理、方法的灵敏度、精密度、准确度、测定范围以及色谱条件进行了系统的研究。实验室试验和现场采样分析的验证表明,该方法稳定,测定结果良好,可用于变压器油样中微量丙酮的测定。

Analysis Method of Acetone Concentration in Power Transformer Oil

The development and present status of transformer insulation ageing diagnosis are introduced.A new method to determine trace acetone in transformer oil by Head-space Gas Chromatography is presented,and the sample pre-treatment, sensitivity,accuracy,precision,linear range and chromatographic conditions of the method are studied.Laboratory experiment and field analysis verify that the method is stable with satisfactory results,and can be used in determination of trace acetone in transformer oil.