REX640 IEC 60870-5-104 Communication Protocol Manual - Arc protection - Auto synchronization - Back-up protection - Bay control and measurement - Busbar differential protection (high impedance) - Busbar protection (voltage and frequency) - Capacitor bank protection - Feeder protection - Generator protection - Grid automation - Interconnection protection - Merging unit - Motor protection - Petersen Coil control - Power management/Load shedding - Transformer protection - 2 winding - Transformer protection - 3 winding - Voltage regulation - IEC 60870-5-101/104 Communication Manual - IEC 60870-5-104 Comm Protocol Manual - REX640 Protection and control - Relion Protection and Control - PCL4 - ANSI - IEC - 16.02.2023