Electrical engineer's pocket-book: a hand-book of useful data for electricians and electrical engineers (1901)
Foster, Horatio A. (Horatio Alvah), 1858-1913 · New York, D. Van Nostrand co.; London, E.& F.N. Spon, ltd. · leaf 304
ice, and the field must be very stable, as the demagnetizing effect ofthe lagging a.c. currents tends to drop the excitation entirely. Such machinesrun better separately excited. CONVERTER ARMATURE WINDINGS. 291 COHTV£RTER ARMAXUR£ WIXR-lXGft.Two-Circuit Winding- for Two-Phase Rotary Transformers.… … Two-Circuit Winding- for Three-Phase RotaryTransformers. The following diagram shows the connections of the three collector ringsto the continuous current winding of a six-pole dynamo. As in the last fig-ure, the rings are connected to points on the commutator at nearly equi-distant points.
Electrical engineering
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