Principles and practice of electrical engineering (1914)
Gray, Alexander, 1882-1921 · New York [etc.] McGraw-Hill Book Company, inc. · leaf 99
es itsvoltage and is thereby protected from injury. For the samereason a shunt generator will not build up if a very low resistanceis connected across its terminals. Because of this self protectingpower, shunt generators are used with advantage for electric fur-nace and other work during the… … Line Current Ii Fig. 99.—Regulation curves of compound generators. rheostat, placed in the field coil circuit. As the load on themachine increases and the voltage drops, some of this resistancemay be cut out either automatically or by hand so as to increasethe excitation. Automatic regulators for…
Electrical engineering
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