Scheduled System Maintenance:
On Monday, April 27th, IEEE Xplore will undergo scheduled maintenance from 1:00 PM - 3:00 PM ET (17:00 - 19:00 UTC). No interruption in service is anticipated.
By Topic

Analysis of ignitron rectifiers for reversing-mill drives

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$31 $13
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

2 Author(s)
Hagensick, C. G. ; Westinghouse Electric Corporation, East Pittsburgh, Pa. ; Cham, E. J.

A REVERSING-MILL DRIVE for rolling-mill service for rolling blooms, slabs, or plates requires application of d-c motors operated under a special load cycle. The motor must be started, accelerated, operated under load, and decelerated many times as the metal which is being rolled is passed back and forth through the rolls. On alternate passes the motor is operated in the reverse direction. The time required for each pass is a few seconds. Typical motor ratings range from about 3,000 hp (horsepower) to about 12,000 hp. The required time for a speed change from base speed in the forward direction to base speed in the reverse direction is about 1 to 2 seconds. Several recent applications of this type have been built with a reversal time of 1 second.

Published in:

American Institute of Electrical Engineers, Part II: Applications and Industry, Transactions of the  (Volume:77 ,  Issue: 4 )