Transformer oil-based nanofluids have become popular research topic due to their enhanced dielectric and thermal properties. Considering the sustainability aspects of extending the life of transformer oil, it is imperative to conduct research on the effect of transformer oil with nanofillers. In the present work, the influence of conducting magnetite (Fe 3 O 4 ), semiconducting titania (TiO 2 ) nanoparticles and combination of Fe 3 O 4 and TiO 2 nanoparticles (multi-nanoparticle) on AC breakdown voltage are investigated for various concentrations. Nanofluid prepared using multi-nanoparticle shows enhanced AC breakdown voltage (BDV) of transformer oil compared with unfilled oil. Enhancement in BDV of 22% is observed with combination of 0.0025 wt% Fe 3 O 4 and 0.0075 wt% TiO 2 . In addition, the effect of titania nanoparticles dispersed into service-aged transformer oil with a weight percentage of ...

中文翻译：

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磁铁矿和二氧化钛纳米粒子对变压器绝缘油性能的影响

变压器油基纳米流体由于其增强的介电和热性能而成为流行的研究主题。考虑到延长变压器油使用寿命的可持续性方面，必须对具有纳米填料的变压器油的效果进行研究。在目前的工作中，研究了不同浓度下的导电磁铁矿（Fe 3 O 4），半导体二氧化钛（TiO 2）纳米粒子以及Fe 3 O 4和TiO 2纳米粒子（多纳米粒子）的组合对交流击穿电压的影响。与未填充油相比，使用多纳米粒子制备的纳米流体显示出更高的变压器油AC击穿电压（BDV）。用0.0025重量％的Fe 3 O 4和0.0075重量％的TiO 2的组合观察到BDV提高了22％。此外，