International Library of Technology · Scranton, International Textbook Co. · leaf 280
Dynamos used for oper-ating incandescent lamps on the two-wire or three-wiresystems are almost invariably compound-wound. Shunt-wound machines were used some years ago for this purpose,but the compound-wound machine is much better, since itkeeps the voltage at the right value automatically.… … stant. Modern dynamos used for this purpose are nearlyalways of the multipolar type. Two-pole machines were § 16 ELECTRIC LIGHTING. 83 formerly much used, but these have given place to the mul-tipolar type. All the dynamos used for any kind of workmay be divided into two classes, according to the…
Electrical engineering
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