Lessons in practical electricity; principles, experiments, and arithmetical problems, an elementary text-book (1902)
Swoope, Coates Walton. [from old catalog] · 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… … DIRECT CURRENT DYNAMOS. 385 method the armature used is of the open coil type, ^ 331, andthe position of the brushes is automatically moved so as to bein connection with the armature coils while they are passingthrough any stage of induction, from the points of maximuminduced E. M. F. to the…
Electricity · Magnetism
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