This article provides an in-depth look at the IEC 61869 standard, covering its structure, key parts, impact on technology, and its role in modern grid automation. 1. What is IEC 61869?
Perhaps the most forward-thinking component, Part 9 specifies the digital interface for instrument transformers. It defines how the analog signals are converted into digital streams (Sampled Values) to be communicated via merging units to the protection and control system, aligning directly with IEC 61850-9-2. iec 61869