Discussion on “220-Kv. transmission of the Southern California Edison company and some 220-Kv. researches”

Abstract

W. A. Hillebrand: Concerning the experiments on the disconnector switch, with regard to characteristic flash-over and the opening distance and clearance from the ground necessary to prevent the arc from shooting across the gap. Was any effort made to control the direction of flash-over by means of screens or guards which would reduce the gradient between the blade and the clip on the opposite side?