Title :
Investigations on the effect of nanoparticles in mineral oil
Author :
Karthik, R. ; Cavallini, Andrea ; Azcarraga, C.G.
Author_Institution :
Lab. of Innovation Technol., DEI-Univ. of Bologna, Bologna, Italy
Abstract :
Power transformers are one of the critical components in power system; traditionally mineral oil is used in transformers for the purpose of dielectrics as well as cooling. In this work, an investigation has been carried out to analyze the performance of Ferrofluids (nano fluids) along with mineral oil for various concentrations. Ferrofluids concentration of 0.1g/liter, 0.2g/liter and 0.5g/liter has been prepared with moisture content less than 5 ppm. Partial Discharge Inception Voltage (PDIV), discharge characteristics of test samples for AC, DC positive and negative voltage is analyzed. Moreover charges produced for each Partial Discharge (PD) have been evaluated. The results illustrate that Ferrofluids with lower concentration shows enhanced PDIV and charge accumulation characteristics than other concentrations as well as mineral oil.
Keywords :
power transformer insulation; transformer oil; PDIV; ferrofluids; mineral oil; nanofluids; nanoparticles; partial discharge inception voltage; power transformers; Discharges (electric); Minerals; Nanofluidics; Nanoparticles; Oil insulation; Partial discharges; Power transformer insulation;
Conference_Titel :
Electrical Insulation and Dielectric Phenomena (CEIDP), 2014 IEEE Conference on
Conference_Location :
Des Moines, IA
DOI :
10.1109/CEIDP.2014.6995885
