Partial discharge pattern analysis of modeled insulation defects in transformer insulation

Author

Massingue, Feliciano ; Meijer, Sander ; Agoris, Pantelis D. ; Smit, Johan J. ; Lopez-Roldan, Jose

Author_Institution

HV Technol. & Manage., Delft Univ. of Technol.

fYear

2006

fDate

11-14 June 2006

Firstpage

542

Lastpage

545

Abstract

This paper describes the first results from experimental investigations which have been carried out to study the partial discharge phenomena in power transformer insulation. Using different types of modeled insulation defects and ageing tests it is aimed to organize a database of known defects, which will be used for recognition of discharges of unknown sources of defects. Moreover, the first results of the investigation of degradation processes of pressboard during ageing are described. The experiments were carried out using the classical IEC 60270 method and the UHF method. Phase resolved patterns of the defects were collected for statistical analysis. Different defects were discriminated using cluster analysis

Keywords

IEC standards; UHF measurement; ageing; insulation testing; partial discharge measurement; pattern clustering; power transformer insulation; power transformer testing; statistical analysis; IEC 60270 method; UHF method; ageing test; cluster analysis; degradation process; partial discharge; phase resolved pattern analysis; power transformer insulation defects; pressboard; statistical analysis; Aging; Databases; Degradation; Fault location; IEC standards; Insulation testing; Partial discharges; Pattern analysis; Power transformer insulation; Power transformers;

fLanguage

English

Publisher

ieee

Conference_Titel

Electrical Insulation, 2006. Conference Record of the 2006 IEEE International Symposium on

Conference_Location

Toronto, Ont.

ISSN

1089-084X

Print_ISBN

1-4244-0333-2

Type

conf

DOI

10.1109/ELINSL.2006.1665376

Filename

1665376