The AC measurmets of the composite of cellulose - bio-based hydrocarbon transformer oil – water nanodrops

The article presents a comparison of the currently used solutions in the field of insulating oils with the new Nynas NYTRO BIO 300X bio-carbon oil. The paper shows the results of measurements of an electrotechnical pressboard sample impregnated with bio-carbon oil, the moisture content of which was 4% by weight. Measurements made using the FDS method in the frequency range from 10 mHz to 5 kHz at the temperatures of 293.15 K, 301.15 K, 309.15 K, 317.15 K, 325.15 K and 333.15 K, made it possible to determine the frequency-temperature dependences of the following electrical parameters: admittance, phase shift angle, loss tangent, conductivity and permittivity.