Title :
The study of tree-inception and growth in PMMA in visible and IR spectra
Author :
Gefle, O.S. ; Gockenbach, E.
Author_Institution :
Tomsk State Univ., Russia
Abstract :
The results of study of the tree-inception and growth in PMMA in visible and IR spectra and PD-parameters are presented in this paper. It is established that tree-inception and growth is accompanied by both a local temperature drop on the sample surface and essential increase in the PD-activity. The growth of trees has a stepwise nature with time. The tree-inception and growth is accompanied by a local increase in a temperature drop at the surface of dielectric by a factor of 1.5...2. Correlation between the PD-activity and a temperature drop at the surface of dielectric is found.
Keywords :
electric breakdown; infrared spectra; organic insulating materials; polymers; trees (electrical); visible spectra; IR spectra; PMMA; local temperature drop; sample surface; tree growth; tree-inception; visible spectra; Dielectrics; Electric breakdown; Electrodes; Infrared spectra; Needles; Temperature control; Temperature distribution; Temperature sensors; Trees - insulation; Voltage;
Conference_Titel :
Electrical Insulation and Dielectric Phenomena, 2003. Annual Report. Conference on
Print_ISBN :
0-7803-7910-1
DOI :
10.1109/CEIDP.2003.1254938
