Safety information - 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 - 14.02.2023

REX640 Installation Manual

DANGER: Dangerous voltages can occur on the connectors, even though the auxiliary voltage has been disconnected.
DANGER: Non-observance can result in death, personal injury or substantial property damage.
DANGER: Only a competent electrician is allowed to carry out the electrical installation.
DANGER: National and local electrical safety regulations must always be followed.
DANGER: The frame of the protection relay has to be carefully earthed.
CAUTION: The protection relay contains components which are sensitive to electrostatic discharge. Unnecessary touching of electronic components must therefore be avoided.
CAUTION: Whenever changes are made in the protection relay, measures should be taken to avoid inadvertent tripping.