Hawkins electrical guide ... : questions, answers & illustrations : a progressive course of study for engineers, electricians, students and those desiring to acquire a working knowledge of electricity and its applications ; a practical treatise (1914)
Hawkins, N. (Nehemiah), 1833-1928 · New York : T. Audel & Co. · leaf 16
ircuit, z and w, for the moment being idle seg-ments. 228 HAWKINS ELECTRICITY Disc Armatures.—The inductors of a disc armature movein a plane, perpendicular to the direction of the lines of force,about an axis parallel to them as shown in fig. 253. The maindifficulty with this type has been in… … Fig. 253.—Disc armature of Niaudet. It is equivalent to a ring armature, having the coilsturned through an angle of 90°, so that all the coils lie in a plane perpendicular to the axisof rotation. The connections of the coils with each other and with the commutator remainthe same, the beginning and…
Electrical engineering
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