DocumentCode
1346751
Title
A 2-motor A-C mine hoist control system
Author
Myles, A. H.
Author_Institution
Electric Controller and Manufacturing Company, Cleveland, Ohio
Volume
75
Issue
1
fYear
1956
fDate
3/1/1956 12:00:00 AM
Firstpage
10
Lastpage
16
Abstract
A method for obtaining reduced speed operation of a-c mine hoists is discussed. Control equipment for providing a very slow stable speed for mine shaft and cable inspection and for cable reeving is described. How frequency responsive relays, energized by a frequency generator coupled to one of the motors, control acceleration, slow speed, and overspeed is explained.
Keywords
Contactors; Induction motors; Relays; Rotors; Synchronous motors; Torque;
fLanguage
English
Journal_Title
American Institute of Electrical Engineers, Part II: Applications and Industry, Transactions of the
Publisher
ieee
ISSN
0097-2185
Type
jour
DOI
10.1109/TAI.1956.6367139
Filename
6367139
Link To Document