A new diagnostic method to support standard frequency response analysis assessments for diagnostics of transformer winding mechanical failures

Author

Pham, D.A.K. ; Pham, T.M.T. ; Borsi, H. ; Gockenbach, E.

Author_Institution

Dept. of High Voltage Eng., Leibniz Univ. Germany, Hannover, Germany

Volume

30

Issue

2

fYear

2014

fDate

March-April 2014

Firstpage

34

Lastpage

41

Abstract

The standard frequency response analysis (FRA) is not fully efficient for diagnostics of mechanical failures in power transformers. The article recommends that physical electrical parameters of the transformers should be analyzed in addition to support the current FRA assessment.

Keywords

failure (mechanical); failure analysis; fault diagnosis; frequency response; power transformers; transformer windings; FRA assessment; physical electrical parameters; power transformers; standard frequency response analysis assessments; transformer winding mechanical failure diagnostic method; Capacitance; Frequency measurement; Frequency response analysis; Impedance measurement; Inductance; Power transformers; Transformers; Windings; diagnostic method; mechanical failure; power transformer; standard frequency responseanalysis assessment;

fLanguage

English

Journal_Title

Electrical Insulation Magazine, IEEE

Publisher

ieee

ISSN

0883-7554

Type

jour

DOI

10.1109/MEI.2014.6749571

Filename

6749571