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 216
is done, short circuit thefields of the machine A that is to be cut out, and thenshort circuit the whole machine and disconnect it. Switching arc circuits is somewhat confusing to onewho is not familiar with it, and it is advisable for anybeginner to study out the best methods for the par-ticular… … Figure 140 Figures 140 and 141 show methods of controllingalternating current arcs operating in series. In Fig-
Electrical engineering · Electric testing
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