REX640 IEC 61850 Engineering Guide - 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 - IEC 61850 Engineering Guide - REX640 Protection and control - Relion Protection and Control - PCL6 - IEC - ANSI

Document ID: 1MRS759116

Issued: 2026-02-25

Revision: F

Product version: 2.0

Software version: 6.1

PCL version: PCL6

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