Indexes for the recognition of insulation system defects derived from partial discharge measurements

Author

Cavallini, Andrea ; Conti, Marco ; Montanari, Gian Carlo ; Contin, Alfredo

Author_Institution

LIMAT-DIE, Bologna Univ., Italy

fYear

2002

fDate

7-10 Apr 2002

Firstpage

511

Lastpage

515

Abstract

This paper presents results of tests having the purpose to derive indexes, from PD measurements, which can enable the recognition of PD generated from different sources, such as internal voids, surface and corona discharges. Moreover, recognition of the location and shape of cavities can be achieved. PD measurements are performed by a digital instrument which allows PD-pulse amplitude, phase and shape to be recorded. Such results can be employed to improve recognition efficiency of PD-based diagnostic tools used for on field applications.

Keywords

corona; insulation testing; partial discharge measurement; pattern recognition; voids (solid); PD-pulse amplitude; PD-pulse phase; PD-pulse shape; cavities location; cavities shape; corona discharges; digital instrument; electrical insulation systems; insulation system defects recognition; internal voids; partial discharge measurements; surface discharges; Corona; Fault location; Insulation; Partial discharge measurement; Partial discharges; Performance evaluation; Phase measurement; Shape measurement; Surface discharges; Testing;

fLanguage

English

Publisher

ieee

Conference_Titel

Electrical Insulation, 2002. Conference Record of the 2002 IEEE International Symposium on

Print_ISBN

0-7803-7337-5

Type

conf

DOI

10.1109/ELINSL.2002.995986

Filename

995986