Positive streamer propagation in liquid insulation

The results presented here refer to a tungsten point anode and stainless steel plane cathode. Figure 1 relates maximum positive streamer growth to pulse duration and pulse amplitude in nhexane. The figure shows a scatter in experimental points on the graph typical of such a set of curves. A smooth curve is drawn through each set of points, by eye, to approximate a best fit curve with a degree of uncertainty. The presence of a whole set of such curves allows a better approximation to be achieved. values derived from these growth vs kV graphs are replotted as growth vs time curves for several applied voltages. On the assumption that these graphs, too, should provide smooth curves a net improvement is made in the spacing of the original curves. A fact to be noted here is that all experimental points have an influence on the derived path of each curve.