Electrical machinery; a practical study course on installation, operation and maintenance (1921)
Annett, Fred Anzley · New York [etc.] McGraw-Hill book company · leaf 431
former induces an e.m.f. insections d, e, and /, opposite to the e.m.f. in sections D, E andA.- therefore, a secondary current, having the direction shownwill combine with tlie primary current and flow through themotor. This is identical to the conditions represented in Fig.480, only in this case… … Auto - Trijnsformer Fio. 48,?.—Diagram of throp-phaso staitiiijj compensator having two aiito-transforiiicis. The second type of starting compensator that can be usedto start three-phase motors is one that emjiloys two auto-trans- STARTING POLYPHASE MOTOlio 415 formers connected in open delta. This…
Electric machinery
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