Title :
The effect of acid accumulation in power-transformer oil on the aging rate of paper insulation
Author :
Lelekakis, Nick ; Wijaya, Jaury ; Martin, Daniel ; Susa, Dejan
Author_Institution :
Centre for Power Transformer Monitoring (the transformerLIFE Centre), Monash Univ., Clayton, VIC, Australia
Abstract :
In this article we explain how acids are formed in the oil and in paper insulation and their involvement in paper degradation. The acidity of the oil reached at the end of a number of paper-aging experiments is reported, and relationships between it and temperature, moisture, oxygen, degree of polymerization (DP), and aging time are presented.
Keywords :
ageing; polymerisation; power transformer insulation; DP; acid accumulation; aging rate; aging time; degree of polymerization; moisture; oxygen; paper aging; paper degradation; paper insulation; power-transformer oil; temperature; Acidity; Aging; Degradation; Inhibitors; Oil insulation; Oxidation; Paper products; Power transformers; Temperature measurement; acidity; paper aging; power transformer;
Journal_Title :
Electrical Insulation Magazine, IEEE
DOI :
10.1109/MEI.2014.6804738
