Modeling of the low-frequency dielectric response of rotating machine stator insulation system

Author

David, E. ; Lamarre, L.

Author_Institution

Ecole de Technol. Superieure, Montreal, QC, Canada

fYear

2005

fDate

16-19 Oct. 2005

Firstpage

257

Lastpage

260

Abstract

In order to assess the state of the rotating machine insulation winding system, time-domain dielectric measurements are frequently conducted. Such measurements, which are related to the low-frequency dielectric response of the insulation system, depend on the way the components of the insulation system are laid out, the aging of the materials and on external factors such as temperature, moisture absorption or contamination. In this paper, a dielectric model of the insulation system that combines effects of both the straight and the end-winding portions was developed and compared with experimental measurement for unaged bars.

Keywords

ageing; dielectric measurement; electric machines; machine insulation; stators; time-domain analysis; insulation winding system; low-frequency dielectric response; material aging; moisture absorption; moisture contamination; rotating machine; stator insulation; time-domain dielectric measurement; unaged bar; Aging; Dielectric devices; Dielectric measurements; Dielectrics and electrical insulation; Machine windings; Moisture measurement; Pollution measurement; Rotating machines; Stators; Time domain analysis;

fLanguage

English

Publisher

ieee

Conference_Titel

Electrical Insulation and Dielectric Phenomena, 2005. CEIDP '05. 2005 Annual Report Conference on

Print_ISBN

0-7803-9257-4

Type

conf

DOI

10.1109/CEIDP.2005.1560670

Filename

1560670