Universal High-Frequency Protection Transmitter-Receiver PVZU-E for Relay Protection

The device is designed for transmission and reception of relay protection signals: via high-frequency (HF) communication channel formed by wires of overhead power lines with voltage of 35-750 kV and via fibre-optic communication channel (via dedicated FOCL). Additional functions: Continuous control of equipment serviceability and periodic monitoring of the communication channel state; Recording in non-volatile memory of data on the apparatus operation during start-up of the protection system, as well as alarm events; Data transmission (OMP); Communication in intercom mode; Information exchange with the ACS server according to GOST R IEC 60870-5-101, GOST R IEC 60870-5-104 protocol; Indication of the level of useful RF signal and/or interference signal in the RZ filter band; Indication of the level of transmitted RF signal