IEC 61850 process bus coupler (PCU)

Process bus coupler according to IEC 61850 and its modules, designed to convert 57.7/100V voltage and 1/5A current measurements with 50 Hz frequency from the secondary windings of conventional type measuring transformers, the states of 220/24V binary inputs into digital data streams according to IEC 61850-9-2 (SV streams) and IEC 61850-8-1 (GOOSE messages), and transfer them over a redundant Ethernet 100Base-X interface to the higher level of the control system, for further use by digital relaying devices, ACS, AISC and other automated substation systems, as well as the reverse conversion of control signals from the relaying terminals and bay controller in the form of an effect on the output relays.