The interest in developing new nanodielectric fluids suitable for electrotechnical applications has increased significantly in the last decade. Several authors have reported experiences on fluids manufactured using different base fluids and nanoparticles. Most of these studies are focused on the comparison of the thermal and dielectric properties of the nanofluids and the base liquids and most authors have found that the addition of nanoparticles to insulating liquids can lead to an improvement of their dielectric properties. This two-part paper analyzes the enhancement of the AC breakdown voltage of several nanodielectric fluids prepared by dispersing variable concentrations of Fe3O4 nanoparticles in a mineral oil. In the first part of the study, the performance of fluids that had been previously dried and degasified were tested. In the second part of the study the impact of the presence of moisture in the dielectric strength of the liquids is analyzed trying to get insight into the physical mechanisms that justify the observed enhancements when nanoparticles are added to insulating liquids.

中文翻译：

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Fe3O4 基纳米介电流体的交流击穿电压。第 1 部分：干流体分析

在过去十年中，开发适用于电工应用的新型纳米介电流体的兴趣显着增加。几位作者报告了使用不同基液和纳米颗粒制造的流体的经验。这些研究大多集中在纳米流体和基液的热和介电特性的比较上，大多数作者发现将纳米粒子添加到绝缘液体中可以改善其介电特性。这篇由两部分组成的论文分析了通过将不同浓度的 Fe3O4 纳米粒子分散在矿物油中而制备的几种纳米介电流体的交流击穿电压的增强。在研究的第一部分，测试了先前已干燥和脱气的流体的性能。