Performance optimization - 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

  • As the SMV messages cause high traffic in the network, they should be filtered out from the local subnetwork part not using them. Otherwise, the SMV messages reach also those network devices that do not subscribe them. Managed Ethernet switches can be configured to perform the filtering operation.
  • IEEE 1588 v2 network devices complying with Power profile or Utility profile IEC 61850-9-3 are highly recommended to simplify the settings and to ensure compatibility. Power Profile and the HSR standard recommend implementation according to the one-step mode.
  • It is recommended to use IEEE 1588 v2 devices with the same clock mode (one-step or two-step) within one network. Ethernet switches performing one-step to two-step conversions should be avoided due to additional inaccuracy.
  • One SMV publisher generates typically around 5-6 Mbit/s traffic to the network. Possibly even more with added options or long IDs. Typical SV stream is about 5 % of bandwidth in PRP and 10 % in HSR when the bandwidth of the used network is 100 Mb/s.