Title :
A Study of the Positive Streamer Growth under Surface Discharge Configuration in Liquid Paraffin
Author :
Ohgaki, S. ; Tsunoda, Y.
Author_Institution :
Graduate School of Science & Technology
Abstract :
The growth characteristics of positive impulse surface discharges using a point-plane electrode geometry in oil have been studied using schlieren optics and a special probe was used for the measurement of the voltage drop across the streamer. The experiments are made in growth lengths up to, approximately 4 cm. The growth characteristics are discussed in conjunction with the probe measurements. We examine mechanisms for the continuous reduction of the potential gradient in the streamer channel as the tip grows, and then propose a new model for streamer growth, adding some findings on light emission in the channel.
Keywords :
Cable insulation; Dielectric liquids; Electrodes; Geometrical optics; Needles; Oil insulation; Optical surface waves; Petroleum; Probes; Surface discharges;
Journal_Title :
Electrical Insulation, IEEE Transactions on
DOI :
10.1109/TEI.1984.298716