Experimental investigations concerning the influence of the cure parameters on the partial discharge inception voltage (PDIV) of four heat-resistant cast resin systems are presented and discussed in this paper. The tests were performed on two epoxy resin systems in combination with silica flour and wollastonite, respectively, with different post-cure parameters. The PDIV was measured in a nonuniform electrical field in dependence on the temperature. The contribution reveals that a raise of the cure temperature can lead to a significant decline of the PDIV.
Published in:
Electrical Insulation, 2002. Conference Record of the 2002 IEEE International Symposium on
Date of Conference: 7-10 Apr 2002