REC615 Protection and Control Functions Manual

This document details the protection and control functions available for the ABB Relion REC615 grid automation relay, organized by base functionality and optional application packages (APP1-APP7). It provides a comprehensive table of function descriptions, including IEC 60617 and ANSI standard designations, IEC 61850 logical node names, and the number of instances per package for protection features such as overcurrent, earth-fault, voltage, and frequency protection.