Electric transmission of energy and its transformation, subdivision, and distribution. A practical handbook (1894)
Kapp, Gisbert, 1852-1922 · New York, Van Nostrand · leaf 342
e motor is rendered thereby less efficient, whilst thegreater speed variations due to a changing load mayalso become objectionable. The general practice nowa-days is to design these motors for a slip of from 2 to 5per cent. It remains yet to determine the effect of the revolvingresultant field B on… … current. We limit the investigation to one of the fourcoils, say for instance the coil A. Instead of revolvingthe field with a speed of ~ x revolutions per second in aclockwise direction, we may imagine the field to standstill in space, and the coil to revolve counter clockwisewith the same speed.…
Electric power production
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