Processing methods of particle-filled liquid resins and its correlation to electrical insulation properties of apparatus

Author

Steinzen, H. ; Kaindl, A.

Author_Institution

Huebers Verfahrenstechnik GmbH, Bocholt, Germany

fYear

2001

fDate

2001

Firstpage

187

Lastpage

190

Abstract

This paper describes the influence of processing silica-filled liquid epoxy resins on the impregnation behavior of large-scale epoxy impregnated coils. Intensive mixing of the liquid resins decreases the maximum viscosity due to proper wetting of the inorganic fillers by the matrix material. Such highly homogenous mixtures promote good impregnation upon casting. As a consequence of good impregnation, the electrical properties of the apparatus are improved. In this case, maximum partial discharge inception voltages could be achieved

Keywords

casting; coils; epoxy insulation; filled polymers; impregnated insulation; mixing; partial discharges; viscosity; wetting; SiO₂; casting; coil; electrical insulation; epoxy matrix; homogenous mixture; impregnation; inorganic silica filler; mixing; partial discharge inception voltage; particle-filled liquid resin; processing method; viscosity; wetting; Casting; Coils; Dielectric liquids; Dielectrics and electrical insulation; Epoxy resins; Large-scale systems; Partial discharges; Rheology; Silicon compounds; Viscosity;

fLanguage

English

Publisher

ieee

Conference_Titel

Electrical Insulating Materials, 2001. (ISEIM 2001). Proceedings of 2001 International Symposium on

Conference_Location

Himeji

Print_ISBN

4-88686-053-2

Type

conf

DOI

10.1109/ISEIM.2001.973603

Filename

973603