Twentieth century handbook for steam engineers and electricians, with questions and answers; a practical nontechnical treatise .. (1916)
Swingle, Calvin F. (Calvin Franklin), b. 1846 · Chicago, F.J. Drake & company · leaf 1454
es arc lamp the shunt coil is used to regulate thevoltage over the arc. With constant potential arc lampsthis shunt coil is not needed, owing to the fact that thevoltage over the lamp is practically constant. Fig. 672shows a diagram of an arc lamp for use on constant poten-tial circuits. The upper… … Fig. 672 and through the resistance coil R to the other terminal ofthe lamp. The action of the lamp is as follows: Currentpassing over the solenoids M M is regulated by the resist-ance across the arc. This current produces an electromag-netic pull on the iron core and floats, magnetically, the…
