Principles and practice of electrical engineering (1914)
Gray, Alexander, 1882-1921 · New York [etc.] McGraw-Hill Book Company, inc. · leaf 260
but it may beseen from diagram A, Fig. 262, that, at any instant, ei + e2 + e3is zero, the voltage in one phase being always equal and oppositeto the sum of the voltages in the other two phases. If, however,an external circuit is connected between any two leads, then thevoltage across that circuit… … Fig. 265. ./L. -Et- K_. -E i-. ->!<- - -E 2- - -x ^mnp—I i?wvHi Si F\ ^ O 2
Electrical engineering
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