Principles and practice of electrical engineering (1914)
Gray, Alexander, 1882-1921 · New York [etc.] McGraw-Hill Book Company, inc. · leaf 81
Two-pole machine. Six-pole machine. Fig. 79.—Machines with the same output. depth of that of the two-pole machine. For the same reason thesix-pole machine has the smaller cross section of yoke. By the use of the multipolar construction therefore there is aconsiderable saving in material, but this…
Electrical engineering
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