Title :
Water saturation limit of transformer oils
Author :
Mladenov, E.S. ; Staykov, St G ; Cholakov, G.
Author_Institution :
Transm. Syst. Operator
Abstract :
The stable functioning of power transformers is closely related to the state of their insulation systems [1]. Most power transformers at present employ paper/oil insulation [2]. This type of insulation has many advantages, but deteriorates under the combined influence of a number of interrelated factors. The insulation properties of the paper/oil system depend strongly on the degree of aging, moisture accumulation in the oil and the paper, and the migration of moisture between them.
Keywords :
transformer oil; aging; moisture accumulation; paper-oil insulation; power transformer insulation; transformer oils; water saturation limit; Chemicals; Circuit faults; Degradation; Hydrocarbons; Oil insulation; Oxidation; Petroleum; Power transformer insulation; Temperature dependence; Water resources; transformer insulation, water content, water saturation limits;
Journal_Title :
Electrical Insulation Magazine, IEEE
DOI :
10.1109/MEI.2009.4795466
