International Library of Technology · Scranton, International Textbook Co. · leaf 93
e differenceof potential across its termi-nals is that of the armature, ^^ ^•^^^■say 120 volts. Now, in Fig. 1363 each of the coils W, Wrequires 10,000 ampere-turns (approximately), because thedensities are the same, also the lengths, except the length ofyoke, which is a trifle less. But two… … DYNAMO-ELECTRIC MACHINE DESIGN. 2469 may be found by applying formula 592. If only one mag-netic circuit is considered, it will be necessary to take 60volts as the E. M. F. across its terminals, because the twocoils are to be connected in series. 3691. In the four-pole dynamo of Fig. 1364 {a),…
Electrical engineering
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