Study of capacitance and dissipation factor tip-up to evaluate the condition of insulating systems for high voltage rotating machines

verfasst von

Mohsen Farahani, Hossein Borsi, Ernst Gockenbach

Abstract

In order to investigate the significance of the capacitance and dissipation factor measurements as a function of test voltage for insulating systems of high-voltage rotating machines a series of measurements have been done on simple epoxy resin specimens and actual stator bars which have been manufactured based on the epoxy VPI technology. The possibilities of proposition of a relation between the maximum variation of the dissipation factor and capacitance with applied test voltage and the relative volume of the air-filled voids were investigated. Also the stator bars have been aged by different accelerated aging procedures and the changes of the capacitance and dissipation factor as a function of voltage were studied during the aging procedures.

Organisationseinheit(en)

Fachgebiet Hochspannungstechnik und Asset Management (Schering-Institut)

Typ

Artikel

Journal

Electrical engineering

Band

89

Seiten

263-270

Anzahl der Seiten

8

ISSN

0948-7921

Publikationsdatum

03.2007

Publikationsstatus

Veröffentlicht

Peer-reviewed

Ja

ASJC Scopus Sachgebiete

Elektrotechnik und Elektronik, Angewandte Mathematik

Elektronische Version(en)

https://doi.org/10.1007/s00202-006-0011-9 (Zugang: Unbekannt)