Title :
Correlation of furfural and moisture content with age of transformers
Author :
Aminian, M. ; Kadir, M. Z. A. Ab ; Salmiaton, A. ; Fatinhamamah, Wan ; Ishak, Taufiq ; Izadi, Maziar
Author_Institution :
Fac. of Eng., Univ. Putra Malaysia, Serdang, Malaysia
Abstract :
This paper is aimed at analysis of correlation between age of 132/33kV and 33/11kV transformers with furfural concentration and carbon oxides content of oil. Also, the correlation of moisture content and relative humidity of oil/paper insulation system with furfural concentration of oil is investigated. The secondary data was obtained from the raw data of research studies which have been done in Malaysia on inservice power transformers. As a result, it is not only confirmed that furfural content in the oil was increased by increasing moisture content of the oil, but also there is a good correlation and significant relationship between furfural concentration of the oil and relative humidity of oil/paper insulation system. Also, descriptive statistics such as mean, standard deviation and normal distribution of furfural and moisture content per year of service of transformers described the level of evolution of moisture and furfural for these transformers at normal temperature.
Keywords :
humidity measurement; normal distribution; power transformer insulation; Malaysia; carbon oxides content; furfural concentration; furfural content correlation; inservice power transformers; mean statistics; moisture content correlation; moisture evolution level; normal distribution statistics; oil insulation system; paper insulation system; relative humidity correlation; standard deviation statistics; transformer age; voltage 11 kV; voltage 33 kV; Correlation; Moisture; Oil insulation; Power transformer insulation; Windings;
Conference_Titel :
Power Engineering and Optimization Conference (PEOCO), 2013 IEEE 7th International
Conference_Location :
Langkawi
Print_ISBN :
978-1-4673-5072-3
DOI :
10.1109/PEOCO.2013.6564574
