Mechanical impurities are one of the main reasons for the decrease of insulation performance of transformer oil.A method of inspecting mechanical impurities in transformer oil by membrane filtration method was proposed.The measurement accuracy and repeatability of different pore size membrane were studied,thus a kind of filter for testing the mechanical impurity of transformer oil was selected.The result shows that it is feasible to test and analyze the particulate pollutants in the transformer oil by millipore filter.The impurity particles measured by membrane filtration method may also contain oil decay products besides the mechanical particulate pollutants.There is a strong correlation between the mechanical impurity content measured by using this method and the cooling method and running time of the transformer oil.
参考文献
相似文献
引证文献
引用本文
厉敏宪,彭伟,邓先钦.膜过滤法测试变压器油机械杂质方法研究[J].润滑与密封,2017,42(3):137-140. . Determination of Transformer Oil Impurities by Membrane Filtration Method[J]. Lubrication Engineering,2017,42(3):137-140.