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 126
to commutator segments lying on the sameradius. For generators, the commutating plane is in advance ofthe neutral plane, and for motors, behind the neutral plane.The angle between these planes is termed the angle of brushlead or brush lag. 114 DYNAMO ELECTRIC MACHINERY. In Fig. 72 is shown a… … Fig. 72. through the brush contacts, each group being considered asforming a number of complete turns. The current flowingin the turns which lie outside of these lines sets up thecross flux as shown in § 51, and the current flowing throughthe turns included between the lines ab produces a…
Electric machinery
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