Twentieth century hand-book for steam engineers and electricians, with questions and answers .. (1905)
Swingle, C. F. [from old catalog], Horstmann, Henry Charles, 1858- [from old catalog], Tousley, Victor Hugo, 1875- [from old catalog] · Chicago, F. J. Drake & co. · leaf 440
erent lamps are also independent of each other. At the present time the series system is used mostlyfor operating high tension series arc lamps. The useof motors with it has been almost entirely abandoned. The series multiple system, Fig. 8, is simply a num-ber of multiple systems placed in series.… … figure 8. of incandescent lamps, operated from a high tension arclamp circuit, the system has been abandoned. It isnot approved by insurance companies, and conse-quently is not often used. The multiple series system consists of a number ofsmall series circuits, connected in multiple, as shownin…
