Dynamos and motors; a text book for colleges and technical schools (1911)
Franklin, William S. (William Suddards), 1863-1930, Esty, William, 1868-1928 · New York The Macmillan company · leaf 427
Fig. 305. coil. Figures 304 and 305 are taken from the publications ofthe General Electric Company. T/ie horn arrester consists of a spark gap G between two28 4i8 DYNAMOS AND MOTORS. metal rods which cur\e away from each other like two horns asshown by the lines A and B in Fig. 306. This spark gap… … >to groundthrough aresistance Fig. 306. connected between a line wire and the ground with a resistancein series with it. The arc which persists after the lightning dis-charge is passed is carried upwards by the rising current of hotair and its increasing length finally extinguishes it. The…
Dynamos · Electric motors
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