Observations of partial discharges in hexane under high magnification

Content Provider	Semantic Scholar
Author	Stricklett, Ken L. Kelley, Edward F. Yamashita, Hiromi Fenimore, Charles Pace, Marshall O. Blalock, T. V. Wintenberg, Alan Lee Alexeff, Igor
Copyright Year	1990
Abstract	Partial discharges are observed in hexane by shadow photography under the application of DC voltages. A nonuniform field geometry is used and the growth of cavities associated with partial discharges at a point cathode was photographed at 200* magnification. The use of an image-preserving optical delay allows a record of the conditions which exist in the liquid prior to the initiation of the low-density streamer to be obtained. The cavity growth at a point cathode is anisotropic, which suggests that electrostatic forces are of primary importance in driving its expansion. The onset of instabilities in the cavity wall is suggested. The initial partial discharge current pulse precedes or is concurrent with the growth of the cavity. An upper bound of 60 ns between first current pulse and the growth of the cavity is obtained. >
Starting Page	692
Ending Page	698
Page Count	7
File Format	PDF HTM / HTML
DOI	10.1109/14.83691
Volume Number	26
Alternate Webpage(s)	https://ws680.nist.gov/publication/get_pdf.cfm?pub_id=13294
Alternate Webpage(s)	https://doi.org/10.1109/14.83691
Language	English
Access Restriction	Open
Content Type	Text
Resource Type	Article