insulated-return power system

insulated-return power system

[′in·sə‚lād·əd ri¦tərn ′pau̇·ər ‚sis·təm]
(electricity)
A system for distributing electric power to trains or other vehicles, in which both the outgoing and return conductors are insulated, in contrast to a track-return system.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.