The Primitive Machine
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The analysis of a cross-field commutator machine, of which the conventional d.c. machine is a special case, is included here because of the clear physical separation of the two axes. The variables in the primitive machine are identical with those in the practical machine and no transformation is needed. The theory applies directly to a.c. commutator machines, with or without a transformation. The two-axis theory of a.c. machines without commutators in later chapters will be followed more easily if the reader has a sound understanding of the material in the present chapter.
KeywordsFlux Linkage Transformer Voltage Flux Density Curve Voltage Equation Armature Current
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