Title :
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
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;
Journal_Title :
Electrical Insulation Magazine, IEEE
DOI :
10.1109/MEI.2014.6749571
