An elementary book on electricity and magnetism and their applications (1919)
Jackson, Dugald C. (Dugald Caleb), 1865-1951, Jackson, John Price, b. 1868, Black, Newton Henry, b. 1874 · New York, The Macmillian Co · leaf 246
on = No-load voltage —full-load voltageFull-load voltage It is, of course, desirable to keep the voltage constant; that is,to have the voltage regulation a small percentage. Sometimes this is accom-plished by auto-matic devicesfor controllingthe speed of theprime mover;that is, the waterwheel or… … View of field rheostat with its connections. 216 ELECTRICITY AND MAGNETISM embedded in enamel, and is placed in the field coil circuit. Asthe load on the machine increases and the voltage drops, some of this resistance may be cutout so as to increase the excita-tion. Still another method ofkeeping…
Electricity · Magnetism
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