Dielectric properties, partial discharge properties, and dissolved gas analysis of ricinnus oils as biodegradable liquid insulating materials
Khayam U.a, Rajab A.a, Suwarnoa
a School of Electrical Engineering and Informatics, Institut Teknologi, Indonesia
Abstract
In this paper partial discharge (PD) characteristics of ricinnus oil and dissolved gas analysis (DGA) due to PD are investigated. The examination showed that the properties of ricinnus oil as a dielectric material such as breakdown voltage, dielectric constant, loss factor, neutralization number, and flash point complied with IEC standard. The -q-n pattern of PD and the change of the pattern with applied voltage were observed. Dissolved gas analyses due to PD in oil were also performed. The results were compared with ones in mineral oil which have been using as insulating materials in high voltage apparatus. The results showed that the PDIV of ricinnus oil is higher than one of mineral oil. Types and pattern of dissolved gas due to PD in ricinnus oil were similar with ones in mineral oil. The total combustible gas in ricinnus oil is a little bit higher than one in mineral oil. The measurement of the cumulative charge during 5 minutes showed that PD activity in ricinus oil is higher than one in mineral oil. The results showed that the gassing tendency due to PD of ricinus oil is good with small amount of combustible gases. © 2012 IEEE.
Author keywords
Applied voltages,Combustible gas,Cumulative charge,Discharge properties,Dissolved gas,Dissolved gas analyses (DGA),Dissolved gas analysis,Effect of temperature,Flash points,High voltage apparatus,IEC standards,Loss factor,Partial discharge characteristics,ricinnus oil
Indexed keywords
dissolved gas analysis,effect of temperature,partial discharges,ricinnus oil