About the breakdown and partial discharge behavior of different heat-resistant cast resins
- authored by
- R. Kotte, Ernst Gockenbach, H. Borsi
- Abstract
Experimental investigations concerning the breakdown and the partial discharge behavior of six heat-resistant cast resin systems are presented and discussed in this paper. The tests were performed with two epoxy resin and an epoxy modified isocyanate system in combination with two different fillers. The breakdown strength of the materials was measured in a uniform as well as in a non-uniform electrical field. Furthermore the partial discharge inception voltage (PDIV) was determined by using a highly inhomogeneous electrode arrangement. All tests were performed in dependence on the temperature. The contribution reveals that wollastonite as filler can lead to a lower electrical strength of the molding material than silica flour. Furthermore it will be displayed that above the glass transition temperature (TG) the electrical strength diminishes significantly and that resin systems with a high TG can have nearly constant electrical properties over a large temperature range.
- Organisation(s)
-
High Voltage Engineering and Asset Management Section (Schering Institute)
- Type
- Paper
- Pages
- 583-586
- No. of pages
- 4
- Publication date
- 2000
- Publication status
- Published
- Peer reviewed
- Yes
- ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials, Condensed Matter Physics, Materials Chemistry
