International Library of Technology · Scranton, International Textbook Co. · leaf 306
Fig. 1535. dom, if ever, done in practice, as it complicates matters, and,moreover, it is not necessary. Again, one end of each of thethree phases might be connected together, as shown inFig. 1536, and a common return wire </run from the common Line a. … Fig. 1536.connection, forming an arrangement similar to the two-phasethree-wire system, Fig. 1528. This would necessitate fourcollector rings, and is used occasionally on alternators whichare to be used considerably for lighting work. The returnwire from the common junction is also sometimes…
Electrical engineering
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