International Library of Technology · Scranton, International Textbook Co. · leaf 384
r and re-verse handles interlock ason the K2 and Kll types. 48. Fig. 32 shows the28A power drum and thefinger board on the left.This drum has fourgroups of rings; all ringsmarked a are connectedtogether and should ringup together when tested Wwith a magneto-bell; thesame is the case with therings… … Fig. 33. 49. Tlie 28A Reverse Switeli.—On the 28A reverseswitch, as on any other, the position of the reverse handle /. IV.—27 48 ELECTRIC RAILWAYS. 24 is supposed to indicate the direction in which the car willstart as soon as the power drum is turned on. Fig. 33 shows the connections of the 28A…
Electrical engineering
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