. A textbook on electric lighting and railways. International correspondence schools, Scranton, Pa. v. 1-3, 5 . isin two sections; one section is at G in the right-hand partof the controller and the other is in the lower part, ])el()Wthe power drum. As is the case with all modern control-lers, the 28A motor cut-outs are arranged so that when onemotor is cut out, llicre isan interference with thepower drum in such a Avaythat it cannot be turned])ast the series one motor cut out,the 28A controller startsthe car on the first notchand gives the single motorfull power on the fourthnotc
. A textbook on electric lighting and railways. International correspondence schools, Scranton, Pa. v. 1-3, 5 . isin two sections; one section is at G in the right-hand partof the controller and the other is in the lower part, ])el()Wthe power drum. As is the case with all modern control-lers, the 28A motor cut-outs are arranged so that when onemotor is cut out, llicre isan interference with thepower drum in such a Avaythat it cannot be turned])ast the series one motor cut out,the 28A controller startsthe car on the first notchand gives the single motorfull power on the fourthnotch. The power and re-verse handles interlock ason the K:^ and Kll types. 48. Fig. .n shows the28A power drum and thefinger board on the drum has fourgroups of rings; all ringsmarked a are connectedtogether and should ringup together when testedwith a magneto-bell; thesame is the case with the rings marked b, c, and d\ but groups with different lettersare insulated from one another. The vertical dotted linesshow the several positions assumed by the drum in going fromthe first notch to the last 49. Tlio lloversc Switeli.—On the reverseswitch, as on any other, the position of the reverse handle 48 ELECTRIC RAILWAYS. §24
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectelectri, bookyear1901
