Title :
Electroluminescence in PE impregnated with various gases or liquids
Author :
Shimizu, N. ; Nagura, N. ; Suzuki, T.
Author_Institution :
Dept. of Electr. & Electron. Eng., Meijo Univ., Nagoya, Japan
Abstract :
Electroluminescence was investigated under highly divergent ac field in polyethylene (PE) impregnated with various gases (vacuum, air, pure N2 or SF6) or liquid (n-hexane). Vacuum treated PE shows the highest intensity of EL. N-hexane impregnated PE does not show any light emission. The results obtained here are well explained by electron impact model; electrons accelerated in micro void and/or large free volume collide with polymer molecules (chromophores) and cause electroluminescence.
Keywords :
SF6 insulation; electroluminescence; impregnated insulation; nitrogen; polymers; N2; SF6; chromophores; electroluminescence; electron impact model; light emission; microvoid; n-hexane impregnated PE; polyethylene impregnated gases; polyethylene impregnated liquids; polymer molecules; Acceleration; Electric fields; Electroluminescence; Electrons; Gases; Partial discharges; Polyethylene; Polymers; Temperature; Voltage;
Conference_Titel :
Properties and Applications of Dielectric Materials, 2003. Proceedings of the 7th International Conference on
Print_ISBN :
0-7803-7725-7
DOI :
10.1109/ICPADM.2003.1218563