phase-comparison relaying

phase-comparison relaying

[′fāz kəm‚par·ə·sən ′rē‚lā·iŋ]
(electricity)
A method of detecting faults in an electric power system in which signals are transmitted from each of two terminals every half cycle so that a continuous signal is received at an intermediate point if there is no fault between the terminals, while a periodic signal is received if there is a fault.
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