Lessons in practical electricity; principles, experiments, and arithmetical problems; over four hundred illustrations; an elementary text book (1909)
Swoope, C. Walton (Coates Walton), d. 1901 · New York, D. Van Nostrand company · leaf 403
con-stant, irrespective of the resistance of the external circuit,while the voltage is altered to suit the conditions of the cir-cuit. It is thus a constant current dynamo. The regulation isaccomplished by either of two general methods. In the first *For example, the field magnets of a 160-light… … Fig. 366.—Series Dynamo.The fields are in series with the arma-ture. A—Fig. 360. DIRECT CURRENT DYNAMOS. method tlTe armature used is of the open coil type, % 331, andthe position of the brushes is automatically moved bo as to bein connection with the armature coils while they are passingthrough…
Electricity · Magnetism
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