proportioning reactor

proportioning reactor

[prə′pȯr·shən·iŋ rē‚ak·tər]
(electromagnetism)
A saturable-core reactor used for regulation and control; increasing the input control current from zero to rated value makes output current increase in proportion from cutoff up to full load value.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.