. 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. CURRENT ININDUCTORS. FlGS. and 1,412.—Section of armature and field showing distorting efect of a*- reaction on the field. When a coil is opposite a pole as in fig. no current is flowing(assuming no self induction) and the field is undisturbed, but. as the inductors passa pole face as in fig. current is induced in them, and lines of forc
. 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. CURRENT ININDUCTORS. FlGS. and 1,412.—Section of armature and field showing distorting efect of a*- reaction on the field. When a coil is opposite a pole as in fig. no current is flowing(assuming no self induction) and the field is undisturbed, but. as the inductors passa pole face as in fig. current is induced in them, and lines of force are set up as in-dicated by the dotted lines. This distorts the main field so that the lines of force arecrowded toward the forward part of the pole face as shown. 1. To distort the field, or 2. To weaken the field. These disturbing fluxes form, in part, stray fluxes linked around thearmature inductors tending to choke the armature current. Ques. Explain how the field becomes distorted byarmature reaction. Ans. Considering a slotted armature and analyzing theelectrical conditions as the inductors move past a pole piece, itwill be observed: 1, when the coil is in the position shown in ALTERNATORS 1,161 fig. 1,411, the current will be zero, assuming n
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