Title :
Aging assessment of dielectric vegetable oils
Author :
Carcedo, Juan ; Ferna?Œ??ndez, Inmaculada ; Ortiz, Alfredo ; Delgado, Fernando ; Renedo, Carlos J. ; Pesquera, Carmen
Author_Institution :
Electr. & Energy Eng. Dept., Univ. of Cantabria, Santander, Spain
Abstract :
The combination of a dielectric solid (paper) and a dielectric liquid (mineral, vegetable, or silicone) is the most commonly used insulation system in power transformers because of the favorable dielectric properties of these insulations and the high heat capacity of the oil, which allows for cooling. It is known that temperature is the main parameter in determining the aging of these insulations and, therefore, the lifetime of a power transformer.
Keywords :
ageing; cooling; power transformer insulation; specific heat; transformer oil; vegetable oils; cooling; dielectric liquid; dielectric properties; dielectric solid; dielectric vegetable oil aging assessment; oil high heat capacity; power transformer insulation system; Dielectrics; Mineral oils; Minerals; Moisture measurement; Power transformers; Vegetable oils; aging; mineral oil; paper; power transformer; vegetable ester;
Journal_Title :
Electrical Insulation Magazine, IEEE
DOI :
10.1109/MEI.2015.7303258
