Title :
Dielectric properties of mixtures between mineral oil and natural ester
Author :
Suwarno ; Darma, I.S.
Author_Institution :
Sch. of Electr. Eng. & Inf., Inst. Teknol. Bandung, Bandung
Abstract :
From the experimental results some conclusions can be drawn as follows. The properties of mixture between mineral oil and natural ester from palm oil in general strongly affected by the ester content. Increasing the ester content significantly enhance the dielectric breakdown. The increase of the ester content also resulting in a higher the losses factor especially at temperature of 100degC. Viscosity and density of the mixture slightly increased with the ester content but significantly decreased with temperature. The acidity of the oil mixtures almost linearly increased with the ester content. Taking into account the requirements from standard, the mixture of natural ester from palm oil and mineral oil with ester content of 50% is considered as good enough to be used as a high voltage insulating liquid.
Keywords :
electric breakdown; insulating oils; liquid mixtures; viscosity; acidity; density; dielectric breakdown; dielectric properties; ester content; insulating liquid; mineral oil; mixtures; natural ester; temperature 100 degC; viscosity; Biodegradable materials; Dielectric liquids; Dielectric loss measurement; Dielectric losses; Dielectric measurements; Minerals; Petroleum; Pollution measurement; Temperature dependence; Viscosity;
Conference_Titel :
Electrical Insulating Materials, 2008. (ISEIM 2008). International Symposium on
Conference_Location :
Mie
Print_ISBN :
978-4-88686-005-7
Electronic_ISBN :
978-4-88686-006-4
DOI :
10.1109/ISEIM.2008.4664471