This paper presents design formulas for calculation of harmonic content in the output voltage of salient-pole a-c generators with both uniform and nonuniform air gaps, under balanced 3-phase loading. Coefficients to be used in the formulas are presented in curve form for harmonics up to and including the eleventh, maldng possible rapid determination of such harmonics. Part II of this paper will contain the derivation of the curves presented here and experimental verification of the formulas.
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Ginsberg et al. (1959) studied this question.
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