International Library of Technology · Scranton, International Textbook Co. · leaf 307
the common wire <^ of Fig. 1536 givesthe arrangement shown in Fig. 1537, in which one e7id ofeach of the phases is joined to a common connection K and theother tJiree ends are carried to three collector rings. This is acommon method of connecting up three-phase armatures,known as the Y or star… … Fig. 1537. proper relation of the E. M. F.sin the different sets of coils.By referring to the curves of Fig. 1448, it will be noticedthat when the E. M. F. E^, Fig. 1537 (b), in one set of coilsis at its maximum, the E. M. F.sii^and E^ in the other twosets are half as great and in the opposite…
Electrical engineering
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