PDC Measurement and Analysis On Oil-Pressboard Samples

verfasst von

A. A. Shayegani, O. Hassan, M. Farahani, H. Borsi, E. Gockenbach, H. Mohseni

Abstract

In this paper the measuring results of polarisation and depolarisation current (PDC) on oil-pressboard samples will be presented. The samples have been aged at 115°C with 3 mg/l of powder of Fe, Cu and Zn as catalyst in order to simulate the stress conditions in a power transformer. Four aged samples have provided for 250, 500, 1000, 2000 hours ageing. Tests have been made also on four moisturised samples. Depolarisation current curves are decomposed to basic exponential functions. Obtained results show differences between aged and moisturised samples, which means that the applied method can distinguish between influences of thermal ageing and water contents.

Organisationseinheit(en)

Fachgebiet Hochspannungstechnik und Asset Management (Schering-Institut)

Externe Organisation(en)

University of Tehran

Typ

Konferenzaufsatz in Fachzeitschrift

Journal

ETG-Fachberichte (Energietechnische Gesellschaft im VDE)

Seiten

287-290

Anzahl der Seiten

4

ISSN

0341-3934

Publikationsdatum

2004

Publikationsstatus

Veröffentlicht

Peer-reviewed

Ja

ASJC Scopus Sachgebiete

Elektrotechnik und Elektronik