Title :
The Circle Diagram of the Polyphase Brush-Shifting Commutator Motor (Schrage Type)
Author :
Franklin, Paul W.
Author_Institution :
Engineering department of Eclipse Pioneer Instrument Corporation, Teterboro, N. J.
Abstract :
This paper presents a derivation of the circle diagram and performance formulas of the polyphase brush-shifting motor (Schrage type). Using similar assumptions as required for the derivation of the Heyland circle, a simple diagram is developed, which permits the graphical determination of current, power factor, output, slip, and copper losses of the machine. Design formulas are given.
Keywords :
Brushes; Circuits; Commutation; Gears; Induction motors; Reactive power; Rotors; Stator windings; Synchronous motors; Voltage;
Journal_Title :
American Institute of Electrical Engineers, Transactions of the
DOI :
10.1109/T-AIEE.1947.5059623
