AREVA T&D Automation announced further significant steps in the completion of its MiCOM Px40 series.  The latest models incorporate an intuitive front panel HMI, for simple control of circuit breakers and switching devices, and for in/out selection of the
user's own test and control features.  LEDs are tri-state colored for annunciation, and high speed/high break relay contacts are rated for direct control duties. The range offering includes not only IEC 61850-8.1 station bus capability, but also interfacing via IEC 61850-9.2 to the process bus, including Non-Conventional Instrument Transformers (optical CTs).  Such models are in service, at system voltages up to and including 800kV.