Power transformer disruptions- a case study

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.

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Bibliographic Details
Published in:IEEE electrical insulation magazine 2014-03, Vol.30 (2), p.17-21
Main Authors: Marques, Andre, de Jesus Ribeiro, Cacilda, Azevedo, Claudio Henrique, Lopes dos Santos, Jose, de Carvalho Sousa, Felipe, da Cunha Brito, Leonardo
Format: Magazinearticle
Language:English
Subjects:
Continuity
defect
Defects
diagnostics
disruption
Electric power generation
Electrical insulation
Equipment costs
Failure
Failure analysis
Interruption
Oil insulation
Partial discharges
Power system restoration
power transformer
Power transformer insulation
Transformers
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Description
Summary: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.
ISSN:0883-7554
1558-4402
DOI:10.1109/MEI.2014.6749569