International Library of Technology · Scranton, International Textbook Co. · leaf 411
2776 DESIGN OF ALTERNATINCx 4117. In using two-layer windings, care should be takento have the top and bottom layers very thoroughly insu-^ lated from each other. The insulatingtroughs a, Fig. 1G18, should project ashort distance beyond the core d, inorder to make sure of good insulationbetween the… … MAGNETIC DENSITIES. DENSITY IN ARMATURE TEETH. 4118. Where armatures are wound with a few heavy coils,the teeth between the coils are large, in many cases fully aswide as the pole faces. In such armatures the magneticdensity in the teeth will not be much higher than that inthe air-gap. When a…
Electrical engineering
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