Changing display symbols - Arc protection - Bay control and measurement - Merging unit - Transformer protection - 2 winding - Feeder protection - Voltage regulation - Capacitor bank protection - Grid automation - Busbar differential protection (high impedance) - Line differential protection - Back-up protection - Motor protection - Busbar protection (voltage and frequency) - Interconnection protection - Generator protection - Power management/Load shedding - Operation Manual - REX615 Protection and control - PCL2 - IEC - ANSI - 30.10.2025

REX615 Operation Manual

Use the keypad to switch between the display function block symbols IEC 61850, IEC 60617, ANSI and CHINESE.

  1. Select Main Menu > Configuration > HMI > FB naming convention and press .
  2. Change the display symbols with or .
  3. Press to confirm the selection.
Note: The protection relay has to be rebooted if the WHMI display symbols are changed. With the LHMI, the change takes effect immediately.