K. Jariyanurat

TL;DR: In this article, the electrical and thermal characteristics of natural ester immersed transformer compared with mineral oil immersed transformer by designing and constructing three single-phase transformers with rated 400/1000V 10kVA, the first transformer used mineral oil, the second transformer used natural esters, and the last one used palm oil, for studying about electrical properties, thermal properties and chemical properties under different types of liquid insulation in each transformer.

TL;DR: In this paper, two types of nanoparticles (TiO 2 ) and Zinc Oxide (ZnO) with a mean diameter of less than 100 nm were used to improve the electrical properties of the natural ester (FR3) by amalgamation with nanoparticles.

TL;DR: In this paper, the dielectric properties of the mineral oil, ELECTROL A, and the natural ester, FR3, are comparatively investigated, and it is found that the natural Ester shows superior dielectrics properties to the mineral Oil except the Dielectric dissipation factor.

TL;DR: In this paper, three types of nanoparticles such as Zinc oxide (ZnO), Barium titanate (BaTiO 3 ), and Titanium dioxide (TiO2) which have their diameter less than 100 nm are used to prepare the nanofluid samples which consist of the natural ester mixed with 0.01% volume fraction of each nanoparticle type.

TL;DR: In this article, the electrical properties of natural ester impregnated pressboards under different impregnation periods were analyzed and the breakdown voltage and capacitance and dielectric dissipation factor of the natural esters with various conditions were examined in accordance with IEC 60247.