Small motors, transformers, electromagnets; a practical presentation of design and construction data for small motors, small low- and high-tension transformers, electromagnets, and induction coils (1920)
Stoller, Hugh Montgomery, Austin, F. E. (Frank Eugene), 1873-, Seeger, Edwin Wilbur, 1892- joint author, American Technical Society · Chicago, American Technical Society · leaf 223
S Considerable space should also be allowed for insulationbetween the primary and the secondary, as indicated in Fig. 41.The length of a mean turn may be computed after the diameterof a mean turn has been decided upon. It may be found neces-sary to make a different assumption as to the length of a… … ^J£CO/VDA/^r p/^/z^A/^r Fig. 41. Cross-Section of Core, Windings, and Insulation 3.1416X7, or 21.9912 inches, say 22 inches. Since the ratio oftransformation is 20 to 1 for the transformer being designed,there would be 20 times as many turns in the secondary windingas there are in the primary…
Electric motors · Electric transformers · Electromagnets · Induction coils
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