Principles and practice of electrical engineering (1914)
Gray, Alexander, 1882-1921 · New York [etc.] McGraw-Hill Book Company, inc. · leaf 293
weight on thesecondary coil is so adjusted that, when the desired current is 268 PRINCIPLES OF ELECTRICAL ENGINEERING [Chap, xxxrv flowing in this coil, the force of repulsion keeps the secondarycoil suspended. If then some of the lamps in the circuit arecut out, the current tends to increase, but… … Fig. 312.—Constant-current transformer. is high when the coils are close together but decreases as thedistance between the coils is increased.296. The efficiency of a transformer output _ output input output + losses where the losses are: Iron losses; the hysteresis and eddy current losses in the…
Electrical engineering
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