An elementary book on electricity and magnetism and their applications (1919)
Jackson, Dugald C. (Dugald Caleb), 1865-1951, Jackson, John Price, b. 1868, Black, Newton Henry, b. 1874 · New York, The Macmillian Co · leaf 451
e are called compensating windings. Theirpurpose is to set up a magneto-motive force which will be justequal and opposite to that of the armature coils and thus reducethe self-induction of the armature almost to zero. Finally,resistance is usually introduced into the leads connecting thecommutator… … Fig. 282. — Diagram of a-c. seriesmotor with resistance (r) betweencoils and commutating bar. constantly alternating flux, and have as a result of this trans-former action a short-circuited current set up in them). 277. Uses of the a-c. seriesmotor. Since the starting andrunning characteristics of…
Electricity · Magnetism
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