SMV stream's quality bits in receiving direction - 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 - PCL6 - IEC - ANSI

REX640 IEC 61850 Engineering Guide

The relay supports a dedicated function block, SMV_QUALITY, for decoding quality bits of the received channels in a frame.

A maximum of 24 instances of the SMV_QUALITY function block are available.

With the outputs of the SMV_QUALITY block, the users can expand both protection and monitoring capabilities, e.g. protection function blocking/enabling and/or event generation with generic control blocks.

Figure 1. SMV_QUALITY function block

Note: For more information on the SMV_QUALITY function, consult the relay’s technical manual.