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 217
force current throughcircuit 2 and the permanent plugs may now be placed Arc Lamps 213 in the center of the holes. If circuit 2 should containmany lights or be open, a long flash would accompanythe withdrawal of the plug. To disconnect circuit 3 from machine B insert aux-iliary plug, as indicated… … Figure 139 connecting the two machines in series on all of thecircuits in use. When this 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…
Electrical engineering · Electric testing
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