Electrical machinery; a practical study course on installation, operation and maintenance (1921)
Annett, Fred Anzley · New York [etc.] McGraw-Hill book company · leaf 362
403 or as in Fig. 404. At firstthought it may nppear that the three windings are connectedso as to cause a short-circuit. It is obvious that this is notthe ca.se when it is remembered that the e.m.f.s in a three-pha.se circuit are in such a relation that their algebraic sumat any instant is equal… … 346 ELECTRICAL MACHINERY
Electric machinery
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