DocumentCode
2424804
Title
Modeling memory phenomena for partial discharge processes in insulation cavities
Author
Cavallini, A. ; Ciani, R. ; Conti, M. ; Morshuis, P.F.H. ; Montanari, G.C.
Author_Institution
DIE-LIMAT, Bologna Univ., Italy
fYear
2003
fDate
19-22 Oct. 2003
Firstpage
723
Lastpage
727
Abstract
Partial discharge measurements performed at 0.1, 20, 50 and 300 Hz and at different voltage levels are compared with simulations based on models available in literature. It is shown that these models need to be improved to be able to fully extrapolate PD behavior at different frequencies. A solution based on a time-dependent increase of the work function when detrapping from negative charged surfaces is proposed and verified on the basis of experimental data.
Keywords
epoxy insulation; insulation; partial discharges; surface charging; work function; PD behavior; epoxy resin; insulation cavities; memory phenomena; negative charged surfaces; partial discharge processes; time-dependent work function; voltage levels; Bandwidth; Computational modeling; Degradation; Epoxy resins; Frequency; Insulation; Partial discharges; Performance evaluation; Testing; Voltage;
fLanguage
English
Publisher
ieee
Conference_Titel
Electrical Insulation and Dielectric Phenomena, 2003. Annual Report. Conference on
Print_ISBN
0-7803-7910-1
Type
conf
DOI
10.1109/CEIDP.2003.1254956
Filename
1254956
Link To Document