Adjustable-voltage hoist drives for cranes

Author(s): S. Rifkin
Publisher: IEEE - Institute of Electrical and Electronics Engineers, Inc.
Publication Date: 1 July 1956
Volume: 75
Page(s): 620 - 623
ISSN (Paper): 0095-9197
DOI: 10.1109/EE.1956.6442012



The adjustable-voltage drives for hoist motion of cranes use d-c motors with speed and direction of rotation determined by the generators supplying the power. The drives, only recently made practical for industry from a cost standpoint, have many advantages that should be considered by designers.