Title :
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
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;
Conference_Titel :
Electrical Insulating Materials, 2001. (ISEIM 2001). Proceedings of 2001 International Symposium on
Conference_Location :
Himeji
Print_ISBN :
4-88686-053-2
DOI :
10.1109/ISEIM.2001.973603
