Cyclopedia of applied electricity : a general reference work on direct-current generators and motors, storage batteries, electrochemistry, welding, electric wiring, meters, electric lighting, electric railways, power stations, switchboards, power transmission, alternating-current machinery, telegraphy, etc. (1916)
American Technical Society · Chicago : American Technical Society · leaf 184
s to determine at a glancewhich contactors are closed at each of the ten master controllerpositions. There are 12 vertical and 10 horizontal columns in thetable. By reading horizontally along any lines corresponding to acontroller step, we note by the positions of the dots the number of… … Fig. 64. Sprague-General ElectricMaster Controller 157 62 ELECTRIC RAILWAYS (1 (2 (3 (4 (5 (6 (7 (8 (9 (10 (11 (12 Between trolley T and one motor (or pair of motors). Between the second motor and the resistance grids. In the jumper or short-circuiting wire around a resistance grido In the jumper…
Electrical engineering
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