Digital Substation

Digital Substation is an engineering publication focused on IEC 61850 automation, protection systems, and digital grid intelligence.

Latest Articles

Latest engineering publications on IEC 61850, digital substations, PRP/HSR, and IEEE 1588 (PTPv2).

SICAM IO Unit 7XV5673

Recently we have received binary signals input/output module by Siemens - SICAM IO UNIT 7XV5673. This device is absolutely new: as binary inputs/outputs expansion module it was presented last fall and, regarding to Siemens office, we were one of the first to try it out.

Real Time Simulation of Electric Power systems

Real time simulation of power systems and related secondary equipment is a well recognised and required method in development of power systems, optimisation of their operation, performance studies, education, etc. The technology of simulators has been...

Free IEC 61850-9-2LE merging unit software simulator

TEKVEL company presented a free beta version of JAVA-based IEC 61850-9-2LE software simulator. Digital Substation immediately downloaded the application and offers an express overview of the proposed software.

MAC-address — what is this?

In any packet transmitted over Ethernet there are two MAC-addresses present: one is a source MAC-address and another is a destination MAC-address. When forwarding data, Ethernet-switches use this important data. So what is a MAC-address? What are the differences between unicast, multicast and broadcast destination MAC-addresses? What destination MAC-addresses are common for IEC 61850 standard protocols? Let's have a more detailed look on this.

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