Corona discharge activity in nanoparticle dispersed transformer oil under composite voltages

Investigation on heat transfer characteristics of nano titania added transformer oil with hotspot temperature

“…Swati et al have concluded that by adding 1 weight % of surfactant in 0.0061 weight % of titania in transformer oil have shown uniform particle distribution with high stability [16]. In addition, the nanofluid exhibit low interfacial tension and low turbidity with high flash point [17]. The same nano fluid composition and procedure is utilized in order to ensure stability of the nano fluid investigated in the present work.…”

Investigation of the flocculation and sedimentation of TiO2 nanoparticles in different alcoholic environments through turbidity measurements

“…The connection between SSC and turbidity is dependent on various properties of suspended sediment including grain size [9,10], color [11][12][13][14], mineralogy of the sediments [15][16][17], shape, and particle properties such as refractive index, density, and surface roughness [7,8], as well as the concentration of suspended particles. The turbidity of a suspension with a surfactant is inferior to the one without surfactant [18].…”

Effects of electron migration and adsorption on the suppression of negative corona discharge in nanoparticle transformer oil: experiments and simulations

“…It is difficult to explain the improvement of the insulation performance of nano-modified transformer oil based on the traditional liquid dielectric theory. A large number of tests and analyses have shown that due to the shallow traps created by nanoparticles [2,7,8], the double-layer structure formed at the interface between nanoparticles and transformer oil, the Brownian motion between electrodes, and the capture of electrons can lead to the improvements in space charge distribution [9]. However, it is difficult to observe such microprocesses directly due to the limitations of the measurement methods.…”