Principles and practice of electrical engineering (1914)
Gray, Alexander, 1882-1921 · New York [etc.] McGraw-Hill Book Company, inc. · leaf 98
ing current If is equal to Et/Rf, where Rf is theconstant resistance of the shunt field circuit, so that as the ter-minal voltage drops the exciting current decreases and causes thevoltage to drop still further. Because of this third effect theterminal voltage of a generator with a given load will…
Electrical engineering
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