Handbook for the use of electricians in the operation and care of electrical machinery and apparatus of the U.S. seacoast defenses (1902)
United States. War Dept, Anderson, George Lucius, 1849-1934 · Washington, Govt. Print. Off. · leaf 120
i&s!^v ^^^^^o ■^ ) ^^H 9 n^^^^^H M^^^^ ^■^^^.^jfl rf /^^^ ELECTRIC MOTORS. 87 (&) The motor generator (fig. 117) has two armatures revolving on one shaftin sei)arate fields. The motor commutation is at one end, the dynamos at theother. It is not so efficient a transformer as the dynamotor,… … 117. Motor Generator. (c) A booster is an electrically or mechanically driven transformer whosedynamo commutator is in the main circuit at a distant point to raise the voltagethere. Both the main and generated currents flow together in the dynamoarmature winding, which has, therefore, very thick…
Electric machinery · Searchlights · Coast defenses
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