Title :
Streak observation of DC pre-breakdown light in silicone oil / low-density polyethylene (LDPE) film composites using a long image guide scope
Author :
Mohamed, Amir Izzani ; Miyamoto, Yuuji ; Mori, Masayoshi ; Kadowaki, Kazunori
Author_Institution :
Grad. Sch. of Sci. & Eng., Ehime Univ., Matsuyama, Japan
Abstract :
DC breakdown light of silicone oil and LDPE film composites between needle-sphere electrodes with the film placed on sphere electrode was observed using a streak camera. A long image guide scope (IGS) was attached to the streak camera as light delay path. This new system enables us to obtain a streak image of an initial process of the DC breakdown phenomena with a period of 10ns. Under positive polarity voltage, breakdown usually initiated from positive needle in all samples. Initiation of DC breakdown from film side was observed under negative polarity voltage condition.
Keywords :
electric breakdown; electrodes; polyethylene insulation; silicone insulation; streak cameras; DC pre-breakdown light; IGS; LDPE film composites; light delay path; long image guide scope; needle-sphere electrodes; polarity voltage; silicone oil-low-density polyethylene film composites; streak camera observation; time 10 ns; Breakdown voltage; Cameras; Electric breakdown; Electrodes; Films; Needles; Viscosity; LDPE; composite; discharge; insulation; optical observation; silicone oil; streak;
Conference_Titel :
Dielectric Liquids (ICDL), 2011 IEEE International Conference on
Conference_Location :
Trondheim
Print_ISBN :
978-1-4244-7352-6
Electronic_ISBN :
2153-3725
DOI :
10.1109/ICDL.2011.6015460
