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 174
ate the contact segments on the maindrum and thus prevent arcs from jumping from segment to segment, (f) A terminal board and switches, shown at the bottom of thecontroller case. The former contains terminal lugs connected withthe controller fingers. It renders the controller self-contained, sothat… … Fig. 54. Development of Controller Connections—Motors in Parallel 149 54 ELECTRIC RAILWAYS (g) An iron case, arranged with hinged front which may bereadily opened for inspection. As indicated in the figure all interiorparts are easily accessible when the front is open. In the operation of the III ^…
Electrical engineering
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