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Propagation characteristics of impulse creepage discharge in perfluorocarbon liquid
Author(s) -
Nakao Yoshitaka,
Wakimoto Kiyoshi,
Miyagi Katsunori,
Itoh Hidenori,
Sakai Yosuke,
Tagashira Hiroaki
Publication year - 2000
Publication title -
electrical engineering in japan
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.136
H-Index - 28
eISSN - 1520-6416
pISSN - 0424-7760
DOI - 10.1002/(sici)1520-6416(200006)131:4<19::aid-eej3>3.0.co;2-o
Subject(s) - schlieren , impulse (physics) , waveform , voltage , insulator (electricity) , streamer discharge , materials science , electrode , transformer oil , acoustics , electrical engineering , transformer , propagation delay , optics , physics , optoelectronics , engineering , quantum mechanics
In this paper, the propagation characteristics of a creepage discharge on the surface of a solid insulator with a back electrode in perfluorocarbon liquid under an impulse voltage application are investigated. The propagation process is observed in detail by means of a high‐speed schlieren optical technique, and simultaneously waveforms of a current and a charge are also measured. Consequently, the polarity effect of the streamer propagation and the positive streamer which propagates stepwise can be seen. The latter is concurrent with the sparse current pulse which corresponds to the charge step‐variation. These results are compared with ones obtained in transformer oil. © 2000 Scripta Technica, Electr Eng Jpn, 131(4): 19–28, 2000