Title :
An Improved Wide-Range Adjustable-Speed Drive [includes discussion]
Author :
Conrad, A.G. ; Perrins, A.R. ; Shank, R.R.
Author_Institution :
FELLOW AIEE, Yale University, New Haven, Conn.
Abstract :
An adjustable-speed drive using a d-c series generator supplying a d-c series motor is described. This drive operates well at speeds under 10 rpm as well as at speeds limited only by mechanical considerations. The ratio of maximum to minimum speed, Fig. 4, is in the order of 100 to 1. The drive has the high starting-torque characteristic of the series motor, and it requires no elaborate control equipment. The speed is essentially constant between no load and full load for each setting of a control-field rheostat.
Keywords :
Bandwidth; Circuit optimization; Circuit testing; Communication channels; Couplers; Filtering; Power engineering and energy; Transmission lines; Variable speed drives; Voltage;
Journal_Title :
Power Apparatus and Systems, Part III. Transactions of the American Institute of Electrical Engineers
DOI :
10.1109/AIEEPAS.1954.4498989
