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 382
n the arma-ture coils will notl»e along the verticalline A B, Fig. 350,but along a linesomewhat in ad-vance of it, in thedirection of the ar-mature rotation, asthe line CD whichpasses through bothneutral points inthe field and isknown as the neu-tral line, or plane.Commutation of an armature coil… … -Neutral Points Produced by theArmature Reaction. 364 PRACTICAL ELECTRICITY. line. The angle of advance of the neutral line from thevertical position will depend upon the current flowing fromthe armature (the field distortion increasing with the current)being shifted forward for an increase, and…
Electricity · Magnetism
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