Twentieth century handbook for steam engineers and electricians, with questions and answers; a practical nontechnical treatise on the care and management of steam engines, boilers and electric machinery (1922)
Swingle, Calvin Franklin, 1846- [from old catalog] · Chicago, F. J. Drake & company · leaf 1180
Single PhaseAlternator. Two and Three Phase.—It occurred to some inventorthat an entirely separate winding could be put on betweenthe coils of the original windings and be connected to itsown collector. The current was to be led to a different cir-cuit, but it soon became evident that it was better… … Fig. 501 3-PHASE Y CONNECTION Of course the capacity of the machine is not doubled, be-cause from a single phase alternator is drawn enough cur-rent to heat it to the safe limit. From a two phase alter-nator we do the same thing. The reason we gain in capac-ity is because in a single phase machine…
