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The influence of magnetite nano particles on the behavior of insulating oils for pulse power applications

Given, M and Wilson, Mark and Mcglone, Phillip and Timoshkin, Igor and Wang, Tao and Macgregor, Scott and Lehr, J.M. (2011) The influence of magnetite nano particles on the behavior of insulating oils for pulse power applications. In: 2011 IEEE Electrical Insulation and Dielectric Phenomena (CEIDP), 2011-10-16 - 2011-10-19. (Unpublished)

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Abstract

The effects of the addition of magnetite nanoparticles on the breakdown strength of three insulating liquids have been examined. The liquids considered are: a mineral transformer oil; a synthetic ester liquid, Midel 7131, and a specialist high permittivity liquid for pulse power applications THESO. The expected increases in breakdown strength were observed in the mineral oil and synthetic ester liquids. However in the case of the high permittivity liquid no significant changes in the breakdown strength were observed. Possible explanations for the differences in the observed behavior for the THESO insulating liquid are discussed.