International Library of Technology · Scranton, International Textbook Co. · leaf 416
t. 3085 ; that is, the equivalent of two wide brushes isused, the arc of contact being about 60°, or about half thespan of one segment. 1948 APPLIED ELECTRICITY. Both ring and drum windings are used for the armatures;Fig. 1156 gives a diagram of the connections, etc., of thedrum-wound armature. A… … Fig. 1156.the armature, which forms a common connection for thethree. The other ends are joined to the commutator seg-ments, that of A A to segment a, that of B B to segmentb^ and that of C C to segment ^, as represented, i, ^, <?,and 4 are the brushes, as before. Those numbered ^ and Jf.are…
Electrical engineering
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