International Library of Technology · Scranton, International Textbook Co. · leaf 447
ITY. 1979 piece, the other must be to the rigJit of a pole-piece of likepolarity. In a four-pole machine, this allows of an angleof only 90° between the brushes; but in a six-pole machine,it allows of an angle of either 60° or 180°, and in an eight-pole machine an angle of either 45° or 135°. With… … Fig. 1167. same as before, but twice the number of commutator seg-ments are employed. In this case each end of each coil iscarried straight down to a separate commutator segment,and, in addition, a cross-connection is made between each 1980 APPLIED ELECTRICITY. commutator segment to the one…
Electrical engineering
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