Title :
Power transformer disruptions- a case study
Author :
Marques, Antonio G. ; de Jesus Ribeiro, Cacilda ; Azevedo, Claudio Henrique ; Lopes dos Santos, Jeeves ; de Carvalho Sousa, Felipe ; da Cunha Brito, Leonardo
Author_Institution :
CELG Distribuicao, Goiânia, Brazil
Abstract :
The article presents an analysis over an operational period of 33 years of 34.5-kV through 230-kV mineral-oil-filled power transformers that have been removed from service because of faults and defects.
Keywords :
fault diagnosis; minerals; power transformer insulation; transformer oil; electrical systems; mineral-oil-filled power transformers; power transformer disruptions; voltage 230 kV; voltage 34.5 kV; Failure analysis; Oil insulation; Partial discharges; Power system restoration; Power transformer insulation; Transformers; defect; diagnostics; disruption; failure; power transformer;
Journal_Title :
Electrical Insulation Magazine, IEEE
DOI :
10.1109/MEI.2014.6749569