International Library of Technology · Scranton, International Textbook Co. · leaf 408
there will be no excess voltage to be takenup; the current is maintained at a constant value andresistance is not necessary to insure stability of operation.This second coil S is to be wound with a«large number ofturns of fine wire, so that when it is connected in shuntacross the arc, as shown, but… … Fig. 25. When the lamp is out, the carbons g, h are in contact.Notice that the switch m in this lamp is connected across theterminals, and in order to put out the lamp, m is closed.This is just the reverse of the constant-potential lamp thatis operated in parallel. When the lamp is thrown into…
Electrical engineering
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