International Library of Technology · Scranton, International Textbook Co. · leaf 356
h, r, c/, and ^, Fig. 1577, to four collector rings, wewould have a two-pole two-phase, or quarter-phase, trans- CURRENT APPARATUS. 2729 former. In this case we would have two pairs of lines lead-ing from the brushes i, 1, 2, 2. The E. M. F. between1 and 1 or between 2 and 2 would be given by… … FiG. 1578. circuit windings, it follows that the connections on thealternating-current side of a three-phase rotary transformerare always A, the Y connection not being possible. If E bethe effective voltage between the lines on the alternatingside of a three-phase rotary transformer and Kthe…
Electrical engineering
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