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

REX640 Installation Manual

All connections are made on the front of the case. No soldering is needed.

  1. Connect signal connector terminals.
  2. Connect compression type (X1 and X2) terminals for CTs/VTs.
  3. Connect the terminals on the communication module for IRIG-B.
  4. Connect the RTD inputs and mA outputs using shielded stranded cables and connect the cable shield to GND rail.
  5. Connect all the sensors of the same type to adjacent channels.
Note: The cable shield is to be earthed at only one end of the cable with RTD cable shield rail.
Note: Use fine wire in door mounting.
Note: See the technical manual for product-specific terminal diagrams.