DocumentCode
2807055
Title
Estimation of water content in power transformers in service by polarization and depolarization current measurements
Author
Gradnik, Tim ; Babuder, Maks ; Koncan-Gradnik, Maja
Author_Institution
Elektroinstitut Milan Vidmar, Ljubljana
fYear
2008
fDate
June 30 2008-July 3 2008
Firstpage
1
Lastpage
4
Abstract
This paper focuses on the comparative analysis of two different methods for water content estimation in power transformers. The first method under study is the Karl-Fisher coulometric method that measures the water content in oil and correlates it to the water content in paper. Use of four well known correlation curves is compared and discussed in the paper.
Keywords
insulating materials; power transformers; Karl-Fisher coulometric method; PDC humidity; current measurements; depolarization current; oil temperature; polarization current; power transformers; water content estimation; Aging; Current measurement; IEC standards; Oil insulation; Petroleum; Polarization; Power transformer insulation; Power transformers; Temperature; Testing;
fLanguage
English
Publisher
ieee
Conference_Titel
Dielectric Liquids, 2008. ICDL 2008. IEEE International Conference on
Conference_Location
Futuroscope-Chasseneuil
Print_ISBN
978-1-4244-1585-4
Electronic_ISBN
978-1-4244-1586-1
Type
conf
DOI
10.1109/ICDL.2008.4622449
Filename
4622449
Link To Document