61869-2 ((free)) Jun 2026

Based on the standard number , the "paper" you are referring to is the international standard IEC 61869-2 .

In short, IEC 61869-2 isn't a page-turner. But if you want your voltage measurements to survive a nearby lightning strike, a harmonic storm from a solar farm, and a digital relay's relentless sampling—this is the document that makes it possible. Respect the VT. Read the standard. 61869-2

The full standard is a copyrighted document available for purchase from: Based on the standard number , the "paper"