Behavior of Nanoparticles in Service Transformer Oils and their Performance on Laboratory Ageing

The transformer is the most critical apparatus in electric power network. Reliable operation of it foremost concern for a proficient supply. Therefore, vital to safeguard so that functions at its highest capacity. In order achieve it, an improvement insulation system necessary, as majority faults transformers are due malfunctioning system. Petroleum-based oils extensively used insulating liquids transformers. latterly evolved field nanotechnology has encouraged studies on Nanofluids (NFs), which suitable liquid insulators. spite advantages NFs electrical and thermal behavior compared their base fluids, further needed establish long-standing performances this study, three mineral oil samples, new, mid-aged, aged, were taken. 0.02% Al2O3 SiO2 these prepared. fluids nanofluids characterized by interfacial tension, acidity, dielectric dissipation factor, resistivity, strength. prepared subjected laboratory ageing presence copper kraft paper 64 hours 150 °C. unaged laboratory-aged Interfacial Tension (IFT), Specific Resistance (SR), Tan Delta (TD), Dielectric Strength (BDV). It was found through work addition nanoparticles upgraded properties samples. long-term applicability permanence might depend catalytic effects. These effects derived from internal assembly materials transformer.