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 141
It. The maximum value of Eg occurs when — is 90° ; then thereactance voltage of the short-circuited coil is E,=LI,f- (I) COMMUTATION. 129 The time of commutation, 4, was obtained in the foregoingarticle; thus for the determination of the reactance voltagethere still remains the calculation of the… … Fig. 80. which is due to the current flowing through the n turns ofthis element, may take a number of paths across the slot,as shown by the numbered lines. Some lines of force alsoencircle the coil where it projects beyond the slots. Thetotal inductance of a coil will be the sum of the…
Electric machinery
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