1. Applied in line and feed outlet of 110kV and below 2. Realize protection, measuring low-voltage line and controlling breaker GTL ... . Functional ConfigurationAccording to different functions, GTL-84X series line protection and monitoring device can be divided into the ... P, Q, Uab, Ubc, Uca, f and other telemetry √ Switch statistics and closing times √ SOE alarm events √ Fault recorder function ...