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)