Title :
The effect of an oil-paper interface parallel to an electric field on the breakdown voltage at elevated temperatures
Author :
Kelley, Edward F. ; Hebner, Robert E. ; Anderson, William E. ; Lechner, James A. ; Blue, James L.
Author_Institution :
NBS, Gaithersburg, MD, USA
fDate :
4/1/1988 12:00:00 AM
Abstract :
Results are reported for the measurement of the electrical breakdown location in the vicinity of an oil-paper interface over the temperature range from room temperature to 150°C. The data indicated that the electrical breakdown occurred at the interface from 15% to 43% of the time, depending on the details of the particular set of measurements. A theoretical analysis shows that this experimental result is consistent with the electric-field enhancement, the area over which the enhancement occurs, and the spread in the breakdown voltages for nominally identical tests
Keywords :
composite insulating materials; electric breakdown of solids; organic insulating materials; 20 to 150 C; breakdown voltage; dielectric interface parallel to field; electric-field enhancement; electrical breakdown location; elevated temperatures; experimental result; oil-paper interface; temperature range; theoretical analysis; Breakdown voltage; Distortion measurement; Electric breakdown; Electric variables measurement; Oil insulation; Optical distortion; Optical sensors; Petroleum; Power transformer insulation; Temperature distribution;
Journal_Title :
Electrical Insulation, IEEE Transactions on
