Cyclopedia of applied electricity : a general reference work on direct-current generators and motors, storage batteries, electrochemistry, welding, electric wiring, meters, electric lighting, electric railways, power stations, switchboards, power transmission, alternating-current machinery, telegraphy, etc. (1916)
American Technical Society · Chicago : American Technical Society · leaf 392
Fig. 304. E.M.F. Relations in a Four-Ring Converter Fig. 305. E.M.F. Relations in a Six-Ring Converter is represented by a 90-degree chord, and the effective value of Eeis represented by a 60-degree chord of the same circle. This is shownin Figs. 303, 304, and 305.From Fig. 304, we have E,= E.2 V 2…
Electrical engineering
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