242 / 2018-09-24 16:00:00

Insulating and aging properties of transformer oil-based nanofluids

transformer oil,Nano-modified transformer oil,nanoparticle,breakdown strength,lightning impluse

A transformer oil based nanofluid has been prepared by dispersing Alumina nanorods (NRs) into mineral oil to improve insulating properties of the host oil. The AC and lightening impulse breakdown voltage characteristics of fresh and aged samples were measured according to IEC standard methods. The results indicated that breakdown strength of nanofluids under all test voltages were increased as compared to that of the base oils. The possible modification mechanisms of Alumina NRs on the insulating properties of fresh and aged transformer oil was discussed depending on the trap characteristics of the host oil and nanofluids.