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A new class of colloidal dielectric fluids is formulated by mixing TiO2 nanoparticle with transformer oil in order to enhance the dielectric performance of mineral oil. To investigate the impact of this change, both AC and lightning breakdown voltage tests were carried out according to IEC standard respectively. The results of AC tests indicate that mean value and 1% probability breakdown voltage...
Transmission and distribution transformers are a critical part of the electricity generation and distribution network. The potential consequence of transformer failure can cause operation disruption and financial losses. In recent years, magnetic nanoparticles have been used to enhance the dielectric breakdown strength of transformer oil. Considering the inherent magnetic property of the magnetite...
A new class of colloidal dielectric fluids is formulated with the objective of enhancing the dielectric performance of mineral oil for application in power system. TiO2 nanoparticles modified by different organic reagents are suspended by means of sonication. Dielectric strength measurements are carried out under AC for a number of different colloidal systems with varying particle mass fraction. It...
Highly-ordered TiO2 nanotube arrays (TNA) by anodizing Ti foil were carried out using a slightly modified electrochemical process. The parameters such as anodization potentials and duration have been varied in order to fabricate the specific length and diameter of TNA. The morphologies of TNA were characterized by field emission scanning electron microscope (Hitachi S-4100 FE-SEM). The crystalline...
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