Directional Protection Relay for Distributed Network Operation

Application requirements

  • Communications media with Low Latency and High rate bandwidth (FO, 4G)
  • Distribution networks with Automatic Circuit Breakers (ACB), underground or overhead switchgear –> Real operation capacity in fault conditions

Hardware- default configuration

5 digital outputs
2 Commands (TC CCx y CAx)
3 Alarm Signaling (TS51,TS67,TS_PRES_V)
6 digital inputs
2 Ethernet ports (100Fx-LC + 100 Base-T)
Analogue Ingress:
3 mixed channels L1-L2-L3 for Smart Terminations (sensors LPVT & LPCT- Rogowsky coils)
Vsync channel
HMI (8 leds, display & keyboard)


FSL (blind) Automatism
Automatic recloser (79) – 5 cycles.
Datamodel IEC61850
Oscillographic (waveform) recorder
PLC according to IEC61131
Synchronization via SNTP protocol
DER Management – Local Automatism & Comm Gateway function towards the RTU located in the Distribution Substation or central SCADA system
Local HMI: Keypad and display
WebUI (remote FW upgrade via Web Server)
Maintenance & Management with ZiverComPlus and ZIV e-NET software tools, or via local HMI local & WebUI

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