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

fYear

2014

fDate

19-22 Oct. 2014

Firstpage

695

Lastpage

698

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;

fLanguage

English

Publisher

ieee

Conference_Titel

Electrical Insulation and Dielectric Phenomena (CEIDP), 2014 IEEE Conference on

Conference_Location

Des Moines, IA

Type

conf

DOI

10.1109/CEIDP.2014.6995885

Filename

6995885