Electrical machinery; a practical study course on installation, operation and maintenance (1921)
Annett, Fred Anzley · New York [etc.] McGraw-Hill book company · leaf 202
epieces, will increase thefield strength; that is, there will be a greater number of linesof force entering and leaving the armature. Tlie armature TYPES OF DIRECT-CURRENT GENERATORS 185 will therefore be cutting a greater number of magnetic lines,hence causing the voltage to increase, which in… … Fig. 197 Fig. 198 Fie. 197.—Same as Fig. 195; field winding disconnected. Pig. 198.—Same as Fig. 195; field connections reversed. Lines of Force in Field Poles Does Not Increase in Pro-portion to the Current Flowing in the Field Coils.—The nextquestion that naturally arises is why this process does…
Electric machinery
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