Principles and practice of electrical engineering (1914)
Gray, Alexander, 1882-1921 · New York [etc.] McGraw-Hill Book Company, inc. · leaf 85
Or: Fig. 84.—Series excitedmachine. Fig. 85. -Compound excitedmachine. shunt across the armature terminals and have many turns of smallwire carrying a current If = Et/Rf, the terminal voltage dividedby the resistance of the field coil circuit. This exciting currentseldom exceeds 5 per cent, of the…
Electrical engineering
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