Title :
Infrared spectroscopy and ferrographic analysis of deposits in oil
Author :
Hamada, M.M. ; Wahab, Mohamed A A ; Zeitoun, A.G. ; Ismail, G.
Author_Institution :
Minia Univ., Egypt
Abstract :
In this paper, a study on transformer oil deposits has been carried out by infrared analysis and ferrographic inspection. The results showed that the location at which deposits accumulate has a great influence on their constituents. Deposits have higher water content, total acidity and ash content than the corresponding transformer oils. The functional groups of deposits are compared with those of transformer oils. Ferrographic inspection indicated that deposits contain metallic particles, dust, solid and paper insulation degradation compounds. The size of solid particles in deposits has been determined
Keywords :
power transformer insulation; ash content; dust; ferrographic inspection; infrared analysis; infrared spectroscopy; metallic particles; paper insulation degradation compounds; solid insulation degradation compounds; total acidity; transformer oil deposits; water content;
Conference_Titel :
High Voltage Engineering, 1999. Eleventh International Symposium on (Conf. Publ. No. 467)
Conference_Location :
London
Print_ISBN :
0-85296-719-5
DOI :
10.1049/cp:19990773
