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Commutator carbon brush effect on the coastdown times of a horizontal motor and a motor-rotor coupled system
G. Santhanakrishnan, B. V.A. Rao
Published in
Volume: 115
Issue: 3
Pages: 383 - 389
An experimental investigation carried out of the coastdown characteristics of a variable-speed d.c. motor and a motor-rotor system is detailed in this paper. The characteristics obtained through an XY recorder in terms of speed vs. time are replotted in terms of deceleration vs. speed for both unreleased and released conditions of the motor commutator carbon brushes during the coastdown experiments. The deceleration vs. speed curves (coastdown curves) for the motor-rotor system resemble the classical Stribeck diagram of friction. © 1987.
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