Dynamo-electricity: its generation, application, transmission, storage and measurement (1884)
Prescott, George B. (George Bartlett), 1830-1894 · New York, D. Appleton · leaf 265
inting shops anddrying sheds. The brushes of the Weston machine can bereadily shifted on the commutator, so as to vary the strengthof current within certain limits; but for charging the accumu-lators as arranged, it was found necessary to diminish it stillfurther, and to adopt an arrangement by… … u-^jt Fig. 131. circuit, so that the electro-motive force may be diminished, andin the same circuit is placed an automatic circuit breaker toguard against reversal of polarity of the machine. i In charging accumulators with a dynamo-electric machine,if the counter electro-motive force of the…
Electrical engineering
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