Dynamos and motors; a text book for colleges and technical schools (1911)
Franklin, William S. (William Suddards), 1863-1930, Esty, William, 1868-1928 · New York The Macmillan company · leaf 244
wattmeter readings gives a fairlyaccurate value for the total power delivered. Use of two zuattmeters for measuring accurately the powerdelivered by any three-zvire system. — The total power deliveredby any three-wire system may be measured by two wattmeterswith their current coils placed in two of… … Fig. 175. measuring the power delivered by a three-wire three-phase sys-tem. The receiving circuits may be either A-connected orY-connected. In some cases the two wattmeter readings are to be added,and in other cases the lesser reading must be subtracted fromthe greater to give the total power…
Dynamos · Electric motors
Internet Archive · Gerstein Library, University of Toronto · Public Domain Mark 1.0. Free to use for anything.
