Title :
Prebreakdown current pulses at streamer inception in cyclohexane
Author :
Tsuruta, Y. ; Katayama, Y. ; Yamazawa, K. ; Yamashita, H.
Author_Institution :
Dept. of Electron. & Electr. Eng., Keio Univ., Yokohama, Japan
Abstract :
In this paper, the relation between the prebreakdown current pulses and the initiation of the density change streamer in cyclohexane under negative impulse voltage condition was investigated. The current pulses and the streamers were observed simultaneously using the reference electrode method and a high-speed optical system, respectively. The time difference between the onset of the first prebreakdown current pulse and the initiation of the negative streamer was obtained to be approximately 78 ns. The initiation electric field of the negative streamer is calculated to be 27.9 MV/cm~35.3 MV/cm
Keywords :
dielectric liquids; discharges (electric); electric breakdown; high-speed optical techniques; organic compounds; organic insulating materials; 78 ns; current pulses; cyclohexane; density change streamer; high-speed optical system; negative impulse voltage condition; negative streamer; prebreakdown current pulse; prebreakdown current pulses; reference electrode method; streamer inception; time difference; Bandwidth; Current measurement; Dielectric measurements; Electrodes; Optical pulses; Pulse measurements; Pulse transformers; Testing; Tungsten; Voltage;
Conference_Titel :
Electrical Insulating Materials, 1998. Proceedings of 1998 International Symposium on
Conference_Location :
Toyohashi
Print_ISBN :
4-88686-050-8
DOI :
10.1109/ISEIM.1998.741762
