Electric transmission of energy and its transformation, subdivision, and distribution. A practical handbook (1894)
Kapp, Gisbert, 1852-1922 · New York, Van Nostrand · leaf 277
as 01, and this means that the machine gives powerto the current, that is, acts as a generator. The E.M.F.line of the other machine lies on the opposite side to O /,that is to say, the current passes through the armaturein opposition to its E.M.F., and therefore does work onthe machine, which acts… … shown in Fig. 89. Here the E.M.F. of machine No. 2lies on the same side as the current, whilst that of machineNo. 1 lies on the opposite side. Hence the weakermachine is the generator, and the stronger machine isthe motor. In this respect the transmission of power byalternating current differs…
Electric power production
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