Studies of protection and protective apparatus for electric railways

The object of this paper is several fold, first, to describe the effects of high frequencies on car wiring; second, to describe experiences with the application of the aluminum arresters to an electrical railway where lightning is especially severe; third, to describe additional devices applied to the d-c. aluminum arrester which gives it greatly diminished deterioration with only a slight decrease in protective value; and, fourth, to describe experiments on the extinguishment of d-c. arcs and the changes that have resulted in the redesign of the old magnetic blow-out arrester.