Dynamo electric machinery; its design, construction, and operation; direct-current machines (1915)
Sheldon, Samuel, 1862-1920, Hausmann, Erich, 1886- joint author · New York, D. Van Nostrand Company; · leaf 195
Dobrowolsky is welladapted for three-wire supply circuits. Points of the arma-ture winding at distances from one another equal to twicethe pole pitch are connected to one slip ring and the inter- GENERATORS. 183 mediate points are connected to another slip ring. Brushesbearing upon these collector… … Fig. no. connected to the brushes B. The reactor has a low re-sistance, but a large inductance. The electromotive forceacross the terminals C is an alternating E.M.F. ; and, be-cause of the large inductance of the coil, very little current l84 DYNAMO ELECTRIC MACHINERY. flows through it when the…
Electric machinery
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