NSTI Nanotech 2009

DC and AC dielectric properties transformer oil based magnetic fluid

M. Timko, P. Kopcansky, L. Tomco, K. Marton, M. Koneracka, F. Herchl, N. Tomasovicova
Institute of Exprimental Physics SAS, SK

Keywords: magnetic fluid, dielectric breakdown, transformer


The comparison of the AC-dielectric breakdown strength of transformer oil based magnetic fluid with pure transformer oil confirmed better insulating properties of magnetic fluid in external magnetic field. The better heat transfer properties provided by magnetic fluid in generally enables to use studied magnetic fluid in power transformers as insulating fluid.
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