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 300
TWO PHASE, OR QUARTER PHASEROTARY CONVERTER If three equidistant points on the armature windings be connected tothree rings, as shown in the following diagram, a three-phase converter isproduced. … THREE PHASE ROTARY CONVERTER Fig. 83. As the connections of a three-phase rotary are always delta, the E.M.F.sas compared with the continuous current E.M.F. E have the followingvalue: E^ 3Voltage between collector rings e1 = —-- = .612 E.2V2 IE 2/V2Alternating current input = i = -— = —-— rz .943…
Electrical engineering
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