Problems and new solutions for partial discharge measurement on high voltage cables under noisy conditions

verfasst von

Uwe Schichler, H. Borsi, Ernst Gockenbach

Abstract

This paper reports about problems and new solutions concerning partial discharge (PD) measurement on high voltage cables under noisy conditions. In addition to the problems of PD measurement on high voltage cables in laboratories there are many problems for on-site PD measurement caused by ambient noises. Some suitable solutions according to these problems are introduced. The decoupling of the measuring signal is realized successfully with a Rogowski coil and a special cylindrical voltage sensor. A personal computer receivers the digitized measuring signal and enables a digital signal processing. The necessary noise rejection is accomplished by well matched analogue coarse filters and digital filter algorithms, which suppress continuous noise signals. Experimental investigations carried out in the laboratory and on a layed cable track show the effectiveness of the presented PD measuring system under noisy conditions.

Organisationseinheit(en)

Fachgebiet Hochspannungstechnik und Asset Management (Schering-Institut)

Externe Organisation(en)

Technische Universität Graz

Typ

Konferenzaufsatz in Fachzeitschrift

Journal

Conference Record of IEEE International Symposium on Electrical Insulation

Seiten

66-69

Anzahl der Seiten

4

ISSN

0164-2006

Publikationsdatum

1994

Publikationsstatus

Veröffentlicht

Peer-reviewed

Ja

ASJC Scopus Sachgebiete

Elektrotechnik und Elektronik, Bauwesen