International Library of Technology · Scranton, International Textbook Co. · leaf 360
If only two connections were made, as in Fig. 1576, the wholeof the winding would not be utilized. Fig. 1581 representsthe same armature connected up as a three-phase rotary.Here each of the three rings has three connections as before, CURRENT APPARATUS. 2733 and these connections are the… … Fig 1581. c, d, e for ring- l;f,g, h for ring ^; and k, /, m for ring 3,there being as many connections for each ring as there arepairs of poles. 4056. Fig. 1582 shows the construction of a modernthree-phase rotary transformer. The three collector ringsare seen at the left-hand end of the machine,…
Electrical engineering
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