Working principles of Metadyne, new appliance having railway traction applications; in its simplest form device consists of plain two-pole d-c armature in four-pole field which has no windings; brushes applied at four points on commutator, two across supply and two feeding load.
Direct-current transformer
Power Works Engr
Power and Works Engineer ; 32 , n 381
1937
2 pages
Article (Journal)
English
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