Dynamo electric machinery; its design, construction, and operation; direct-current machines (1915)
Sheldon, Samuel, 1862-1920, Hausmann, Erich, 1886- joint author · New York, D. Van Nostrand Company; · leaf 310
osite to its direction when run asa generator, serious results may occur. One way in whichthis difficulty may be overcome is to arrange the field coilsso that the magnetization in any one machine will remainthe same as in the other machines, even though its pressurefalls below that of the others.… … Fig. 194- placing the field in parallel, as shown in Fig. 194. Twoseries dynamos may be run in parallel without an equahzerby resorting to mutual excitation, that is, by letting the cur- CENTRAL-STATION EQUIPMENT. 299 I umm. i& SERIES mmsL rent of one armature excite the field of the other. In…
Electric machinery
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