Thermal degradation of insulating systems

Authors

  • Jozef Király Technical University in Košice

Abstract

The article deals with thermal ageing of transformer oil based ferrofluid at initial stage of ageing. Influence of ageing in this article is observed on changes of electrical capacitance, whose represents structural changes in liquid insulation. For better evaluation are all experiments made in frequency range from 100 Hz to 2MHz. Except the influence of frequency on capacitance of these samples it have to be noted that concentration of magnetic nanoparticles in these fluids, which also affects capacitance of samples.  Keywords: Magnetic fluid, transformer oil, thermal ageing, oleic acid

Author Biography

Jozef Király, Technical University in Košice

Department of Electric Power Engineering,

PhD. Student

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Published

2021-11-03

Issue

Vol. 14 No. 2 (2021)

Section

Generation of Electricity, Transmission, Distribution and Consumption of Electricity

License

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