. 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. e is obtained by a flux of given amount,as would be obtained in the ordinary type of machine. It is also more expensive to buildtwo armatures, to give the same power, than to build one armature. This type has stillother grave defects, among which may be mentioned enormous magnetic leakage, heavyeddy current losses, inferior beat emissivity, and bad regulati
. 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. e is obtained by a flux of given amount,as would be obtained in the ordinary type of machine. It is also more expensive to buildtwo armatures, to give the same power, than to build one armature. This type has stillother grave defects, among which may be mentioned enormous magnetic leakage, heavyeddy current losses, inferior beat emissivity, and bad regulation. ALTERNATORS 1,153 Classes of Inductor Alternator.—There are two classesinto which inductor alternators may be divided, based on themode of setting of their polar projections: 1. Homopolar machines; 2. Heteropolar machines. Homopolar Inductor Alternators.—In this type the positivepolar projections of the inductors are set opposite the negative polarprojections as shown in fig. 1,402. When the polar projections are setin this manner, the armature coils must be staggered or set dis-placed along the circumference with respect to one another at a distanceequal to half the distance from the positive pole to the next positive Figs. 1,402 and 1,403.—Homopolar and heteropolar inductors. Homopolar inductors havetheir N and S poles opposite each other, while in the heteropolar type, they are staggeredas shown. Heteropolar Inductor Alternators.—Machines of this class arethose in which the polar projections are themselves staggered, as shownin fig. 1,403, and therefore, do not require the staggering of the armaturecoils. In this case, a single armature of double width may be used, andthe rotating inductor then acts as a heteropolar magnet, or a magnet whichpresents alternatively positive and negative poles to the armature,instead of presenting a series of poles of the same polarity as in the caseof a homopolar magnet. Use cf Inductor Alternators.—Morday originally desig
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