Behavior of a machine insulation system during accelerated aging tests

verfasst von

M. Farahani, E. Gockenbach, H. Borsi, Martin Kaufhold

Abstract

The contribution presents results from extensive investigations on the behavior of a VPI machine test insulation system (thermal class F (155 °C)), which was subjected to a thermal overstress (175 °C) in repeated cycles. It will represent the thermal deteriorating effects of an insulation system in service on an accelerated basis. After each thermal cycle the insulation system is subjected to mechanical stress, moisture, and voltage. In order to check the condition of the insulation systems in a non-destructive manner several properties of insulation like dissipation factor, capacitance, insulating resistance and partial discharge quantities were measured after each thermal cycle. The results indicate how the changes in electrical and dielectric properties of insulation take place during the accelerated aging test.

Organisationseinheit(en)

Fachgebiet Hochspannungstechnik und Asset Management (Schering-Institut)

Externe Organisation(en)

Siemens AG

Typ

Konferenzaufsatz in Fachzeitschrift

Journal

Conference Record of IEEE International Symposium on Electrical Insulation

Seiten

404-407

Anzahl der Seiten

4

ISSN

0164-2006

Publikationsdatum

2008

Publikationsstatus

Veröffentlicht

Peer-reviewed

Ja

ASJC Scopus Sachgebiete

Bauwesen, Elektrotechnik und Elektronik

Elektronische Version(en)

https://doi.org/10.1109/ELINSL.2008.4570359 (Zugang: Unbekannt)