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Low frequency dielectric measurements (5 Hz–100 MHz) in parallel with Differential Scanning Calorimetry were used to study the behavior of a water-in-dodecane microemulsion as a function of increasing water content, C-mass fraction, in the interval 0.024≤C≤0.4, upon decreasing temperature from 20°C down to −190°C. The presence of “free” and “interfacial” water molecules was evidenced and a differentiation...
The research work that has been carried out regarding the electrical conductivity of dielectric liquids, under various experimental conditions for industrial purposes or for physical investigations of fundamental character, has not yet been able to explain fully the conduction phenomenon. This is because the problem of conductivity in high fields is quite complicated. Although a considerable amount...
The paper presents examination results of the influence of thermal ageing and partial discharges on the capacity of transformer oil electrification, The examination has been carried out in a laminar flows region within the temperature range of 20–80°C with the use of flow pipes made of various materials.
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