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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 58

An illustration from 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, leaf 58
entpractice, except where many machines are in operation, or wheretheir terminal voltage exceeds 800 volts. It is largely employed withalternating-current generators, since an alternating current will notproduce a unidirectional magnetic field. In either of the methods just mentioned, the e. m. f.… … Fig. 38. Diagram of Magneto 44 PRINCIPLES 35

Electrical engineering

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