Twentieth century handbook for steam engineers and electricians, with questions and answers; a practical nontechnical treatise .. (1916)
Swingle, Calvin F. (Calvin Franklin), b. 1846 · Chicago, F.J. Drake & company · leaf 1377
on thesame general principle as the 2,200-volt arrester, differingfrom it mainly in having two additional gaps to take careof the higher voltage. 1342 Steam Engineering The 2,200-volt arrester (Fig. 634) is used in variouscombinations to form arresters of higher voltage. Low-Voltage Lightning… … GROUND Fig. 633form f2, 3,000-volt multigap arrester for stations as transformer secondaries, motors, series arc lamps, etc.These arresters are made in single, double and triple-poleunits. Protection of Cable Systems.—It is frequently necessary,and desirable for circuits to dip underground when…
