phase-sequence relay

phase-sequence relay

[′fāz ¦sē·kwəns ′rē‚lā]

(electricity)

Relay which functions according to the order in which the phase voltages successively reach their maximum positive values. Also known as phase-rotation relay.

McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.