Applies to newly manufactured instrument transformers for high-voltage (HV) applications with a nominal voltage > 1 kV AC or > 1.5 kV DC .
For the most up-to-date and official documentation, you can access the standard through the IEC Webstore . IEC 61869-1:2023 iec 618691 pdf best
Covers devices with both analogue and digital secondary signals for measuring, protection, and control purposes. iec 618691 pdf best
: Crucial for quality assurance and commissioning. iec 618691 pdf best