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 136
th two windings and is really a trans-former, the primary circuit of which is connectedacross the mains and the secondary in series with themain current. In Figure 88 S is a double throwswitch, by means of which the primary coils Y can beconnected so as to raise or lower the voltage of the line.By… … Figure 88 prevent serious short circuiting of any of the secondarycoils while the contacts of C are moved from one seg-ment to another. It will be seen that C is split andthat therefore during the time that it bridges two seg-ments the currents induced in the coil between themmust pass through L.…
Electrical engineering · Electric testing
Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.
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