Title :
Surface discharges along polymer foam
Author :
From, Udo ; Ming, Li ; Schutte, T. ; Walfridsson, Lars ; Kron, A. ; Liu, Rongsheng ; Windmar, Dan
Author_Institution :
ABB Corp. Res., Vasteras, Sweden
Abstract :
The behavior of partial discharges (PD) along a polymer foam insulator in air is investigated at 50 Hz AC voltage. The results were compared to the PD behavior along other solid/air interfaces. The PD inception voltage depends on the dielectric constant of the solid material. It was highest for the foam/air interface. Further, the effect of the dielectric constant on the PD mechanism is investigated. A qualitative explanation is provided
Keywords :
foams; organic insulating materials; partial discharges; permittivity; polymers; surface discharges; 50 Hz; dielectric constant; insulator; partial discharge; polymer foam; solid/air interface; surface discharge; Dielectric constant; Dielectric materials; Dielectrics and electrical insulation; Gas insulation; Partial discharges; Polymer foams; Rough surfaces; Solids; Surface discharges; Surface roughness;
Conference_Titel :
Conduction and Breakdown in Solid Dielectrics, 1998. ICSD '98. Proceedings of the 1998 IEEE 6th International Conference on
Conference_Location :
Vasteras
Print_ISBN :
0-7803-4237-2
DOI :
10.1109/ICSD.1998.709329
