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 286
ldered to the commu-tator become loose. The effect of an open-circuit is shown in Fig. 136.The circuit is open at n. Thebrushes are on segments aand d. By tracing out thewinding it will be found thatno current flows through thewires marked in heavy lines.Whenever segments c andd are under a brush,… … As segment c passes out 249 154 ELECTRIC RAILWAYS
Electrical engineering
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