Relion 630 Series RET630 Transformer Management Relay Product Guide

This document is a product guide for the ABB Relion 630 series RET630, a comprehensive transformer management relay designed for protection, control, measurement, and supervision of power transformers and generator-transformer blocks. It details the relay's applications, preconfigurations, protection functions, communication protocols (including IEC 61850), technical data, and ordering information for utility and industry power distribution networks.