Dielectric spectroscopy and gas chromatography methods applied on high-voltage transformer oils

Author

Dervos, C.T. ; Paraskevas, C.D. ; Skafidas, P.D. ; Stefanou, N.

Author_Institution

Dept. of Electr. & Comput. Eng., Nat. Tech. Univ. of Athens

Volume

13

Issue

3

fYear

2006

fDate

6/1/2006 12:00:00 AM

Firstpage

586

Lastpage

592

Abstract

This paper points out the advantages offered by the temperature dependent dielectric spectroscopy in frequency domain, as an additional diagnostic technique for insulation testing of power transformers for life-time prediction. Complex permittivity measurements have been carried out as a function of operating frequency and oil temperature for a wide selection of high voltage transformers and the gaseous byproduct concentrations were also monitored. The work correlates dielectrometry data to the gas chromatography ones

Keywords

chromatography; frequency-domain analysis; insulation testing; permittivity measurement; power transformer insulation; power transformer testing; transformer oil; dielectric spectroscopy; frequency domain analysis; gas chromatography; high-voltage power transformer oil; insulation testing; permittivity measurement; Dielectrics; Electrochemical impedance spectroscopy; Frequency domain analysis; Gas chromatography; Insulation testing; Oil insulation; Permittivity measurement; Petroleum; Power transformers; Temperature dependence;

fLanguage

English

Journal_Title

Dielectrics and Electrical Insulation, IEEE Transactions on

Publisher

ieee

ISSN

1070-9878

Type

jour

DOI

10.1109/TDEI.2006.1657972

Filename

1657972