... Detection 3.Ethernet Network Interface GTL-84X Digital Line Protection DevicesGTL-842 digital line protection device, mainly used in 110kV ... Control Function Yao volume collection of 16 letters, accident telesignalling √ Remote control circuit breaker division and √ IA, IC, P, Q ... , Uab, Ubc, Uca, f and other telemetry √ Switch statistics and closing times √ SOE alarm events √ Fault recorder function ...