Electricians' operating and testing manual; a hand book for men in charge of electrical apparatus, repair men, trouble men, lamp trimmers, and electricians generally (1916)
Horstmann, Henry Charles, Tousley, Victor Hugo, 1875- joint author · Chicago, F.J. Drake & co · leaf 60
urns of fine wire. (To save energy. See chapter onmagnetism.) A small air gap between fields and ar-mature. (To prevent leakage and unnecessary mag-netic resistance.) The ends of pole pieces not tooclose together. (To prevent leakage around arma-ture.) Large wires on armature. (To prevent lossof… … Figure 38 as the series dynamo, the same current passing in se-ries, first through the armature, then through thefields. Such a machine cannot be used with a vari-able current because the strength of the fields wouldbe constantly fluctuating. Whenever there would bean increase of current strength…
Electrical engineering · Electric testing
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