Digital Substation is an engineering publication focused on IEC 61850 automation, protection systems, and digital grid intelligence.
Top-down IEC 61850 engineering — formalized in TR IEC 61850-90-30:2025 and TR IEC 61850-7-6 (Ed. 2) — moves specification errors from commissioning to the design phase, before a single IED is selected or procured. This article explains the mechanics of the five-step process: what each step produces, what files are exchanged, and why the sequence achieves outcomes the conventional bottom-up approach cannot.
Since the UpGrid forum started, many experts were quick to "bury" the exhibition "Electrical Grids of Russia" - the event participation in which is a longterm tradition for electric power engineers all over Russia. We had the feeling that UPGrid - it's more for "white collars", while LEP (as is often simply referred to) - is the place where you meet designers, maitenance engineeres, including specialists from different parts of Russia - those who work directly with the equipment on the ground. And, you know, our assumption looks true. "Digital Substation" prepared a special report from the eve
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.