Transformer insulation technology with esters based dielectric fluids-bibliography survey

Mineral oil used in power transformer is having low temperature and environmental performance. The increase in power rating of transformers called for high temperature performance and environmental friendly insulating oils. Ester based dielectric fluids has been found to defeat mineral oils in all technical and environmental aspects. Hence there is a great need of research on ester oils. The present paper is bibliography of 150 published articles. Owing to a large number of contributions and limit to length of the documentation; exceptions were made to include a citation if a publication contributed a significantly unique; practically technical viewpoint on usage of esters based dielectric fluids for transformer insulation technology. The selected literature has been put in relevant sections to make researchers convenient in obtaining literature. Some of the contributions spanned for more than one section; efforts were made to include such citations in one of the most relevant section.