Title :
Overloading and loss-of-life assessment guidelines of oil-cooled transformers
Author :
Sen, P.K. ; Pansuwan, Sarunpong
Author_Institution :
Dept. of Eng., Colorado Sch. of Mines, Golden, CO, USA
Abstract :
Estimation of a power transformers´ remaining life is of concern to most owners, especially when it is known to have been overloaded either continuously or intermittently over long periods. Therefore, to make economical decisions for transformer replacement, it is critical to be able to estimate with reasonable accuracy the transformer remaining life expectancy. This paper discusses, in detail, the insulation aging and life expectancy estimation of oil-filled transformers and provides simplified transformer overloading guidelines
Keywords :
ageing; cooling; insulating oils; power transformer insulation; failure modes; insulation aging; loss-of-life assessment guidelines; nameplate rating; oil-cooled transformers; transformer overloading; transformer overloading guidelines; transformer remaining life estimation; transformer remaining life expectancy; transformer replacement; Aging; Cooling; Dielectrics and electrical insulation; Guidelines; Life estimation; Oil insulation; Petroleum; Power transformer insulation; Power transformers; Temperature;
Conference_Titel :
Rural Electric Power Conference, 2001
Conference_Location :
Little Rock, AR
Print_ISBN :
0-7803-7012-0
DOI :
10.1109/REPCON.2001.949516
