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 22
Angular Pitch or Spread of Drum Coils.—Before takingup the winding as a whole, the form of the individual coil shouldbe considered. Fig. 260 shows an end view of one coil in posi-tion on a drum armature of a multipolar machine. The twoslots X and Y contain the sides of the coil and the… … a 0)00 too tuD.5£ OJ bo <u 5 i> GpbO S £ 03O fA 3S CD O .9 2 .S ° -t-» c a * CD<D»Ei o .. 6 O a> 0) <t> 0 +■> 1 <D *2 ° CM o o Pn ARMATURE WINDINGS 235 pitch of the poles, represented by the angle M, which is theangle between the pole centres. For instance, on a four pole…
Electrical engineering
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