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Practical application is a primary concern in recent nanocomposite research. In an effort to use nanocomposites as insulating materials for heavy electric apparatus, titania nano-filler and silica micro-filler mixed composites were newly prepared for this study. These composites had the same low thermal expansion as aluminum and insulation breakdown properties superior to those of conventional insulating...
This paper focuses on the insulation properties of nanocomposites, which are evaluated under divergent and homogeneous electric fields. Epoxy nanocomposites were made by dispersing nano-fillers. Various kinds of nano-fillers were used, such as layered silicate, silica and titania. Insulation breakdown tests by needle-plate and plate-plate electrode configuration were conducted on the nanocomposites...
This paper focuses on the electrical insulation properties of a newly prepared composite material by nano- and micro-filler mixture. Nano- and micro-filler mixture composites were made by dispersing nano-scale layered silicate fillers and micro-scale silica fillers in epoxy resin. To investigate the effects of nano- and micro-filler mixture, the thermal expansion coefficient and insulation breakdown...
Accompanied with the prevalence of motors controlled by the inverter, the problem of surge voltage arising from the inverter has become intensified. The high frequency components of the inverter switching pulse voltage lead to the overvoltages due to the impedance of the cable between the inverter and the motor, and the insulating materials have been damaged by the partial discharges. In this study,...
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