Accounting of physicochemical characteristics interference in multiple-aspect assessment of oil condition

Author

Davidenko, I.V. ; Kolushev, D.N. ; Shyrokov, A.V.

Author_Institution

Dept. of Electr. Machines, Ural Fed. Univ. named after the First President, Ekaterinburg, Russia

fYear

2012

fDate

23-27 Sept. 2012

Firstpage

361

Lastpage

364

Abstract

Condition of liquid insulation is determinative factor as for assessment of technical state of oil-filled equipment so for prolongation of its service life. The existing approach to physicochemical assessment of liquid insulation ignores both individual structural group composition of oil and the dynamics of destructive alterations occuring in it in the process of operation under the influence of structural features of equipment and its mode of operation. Considered in the report is the assessment of technical condition of transformer oil on water content, acid number, dielectric loss tangent, specific volumetric oil resistance and Verman index with an account of mutual effect of the above parameters, as well as the dynamics of their alterations in the process of operation.

Keywords

dielectric losses; transformer oil; Verman index; acid number; destructive alterations; dielectric loss tangent; liquid insulation condition; multiple-aspect assessment; oil condition; oil-filled equipment; physicochemical characteristics interference; service life; specific volumetric oil resistance; structural features; structural group composition; transformer oil; water content; Dielectrics; Hydrocarbons; Indexes; Oil insulation; Power transformer insulation; bushings; oil condition; physicochemical analisis; power and measuring transformers;

fLanguage

English

Publisher

ieee

Conference_Titel

Condition Monitoring and Diagnosis (CMD), 2012 International Conference on

Conference_Location

Bali

Print_ISBN

978-1-4673-1019-2

Type

conf

DOI

10.1109/CMD.2012.6416454

Filename

6416454