Electricians' operating and testing manual; (1910)
Horstmann, Henry C. [from old catalog], Tousley, Victor Hugo, 1875- [from old catalog] joint author · Chicago, F. H. Drake & co · leaf 61
gure 41) is sometimes arranged as a shunt aroundthe field coils and as the arm is moved forward orback the resistance is increased or decreased, thus tak-ing more or less current around the fields and weaken-ing or strengthening them accordingly. The highest E.M.F. of which the dynamo is capableis… … Figure 40 be shifted away from the neutral point sufficient tocause a certain number of the armature coils to gener-ate in opposition to the rest and thus reduce theE.M.F. of the dynamo until the current has its pre-determined value. From what we have learned in chapter on Principlesof Dynamos it…
Electrical engineering · Electric testing
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