three-phase three-wire system

three-phase three-wire system

[′thrē ¦fāz ′thrē ¦wīr ′sis·təm]
(electricity)
System of alternating-current supply comprising three conductors between successive pairs of which are maintained alternating differences of potential successively displaced in phase by one-third cycle.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.