Diagnosis of EHV and HV Transformers Through an Innovative Technique: Perspectives for Asset Management

Author

Cavallini, Andrea ; Montanari, Gian Carlo ; Ciani, Fabio

Author_Institution

Dept. of Electr. Eng., Univ. Bologna, Bologna

fYear

2008

fDate

9-12 June 2008

Firstpage

287

Lastpage

290

Abstract

The application to power transformers of a novel system for partial discharge detection and analysis is presented in this paper. The system exploits the diversity of partial discharge pulses to separate phenomena relevant to disturbance and/or multiple sources. By this way, measurement data can be treated in a way that allows accurate diagnostic results to be obtained. Besides signal processing tools, this system is also endowed with automatic identification routines that have been specialized for paper/oil insulated systems. Working cases are presented to show the effectiveness of the proposed system.

Keywords

partial discharge measurement; power transformer insulation; transformer oil; EHV-HV transformer diagnosis; asset management; automatic identification routines; paper-oil insulated system; partial discharge measurement; Asset management; Dissolved gas analysis; Frequency; Insulators; Oil insulation; Partial discharges; Petroleum; Power cables; Power transformers; Pulse transformers;

fLanguage

English

Publisher

ieee

Conference_Titel

Electrical Insulation, 2008. ISEI 2008. Conference Record of the 2008 IEEE International Symposium on

Conference_Location

Vancouver, BC

ISSN

1089-084X

Print_ISBN

978-1-4244-2091-9

Electronic_ISBN

1089-084X

Type

conf

DOI

10.1109/ELINSL.2008.4570331

Filename

4570331