Here’s why:
The IEC 61869-1 standard is the foundational "product-family" document for all instrument transformers, defining the general requirements for devices used in high-voltage applications above 1 kV AC or 1.5 kV DC IEC Webstore The latest version, IEC 61869-1:2023 iec 618691 pdf hot
This paper addresses the latest 2023 revision of the standard, which introduced optional wideband accuracy classes (WB0 to WB4) to handle higher harmonics in modern power grids. It specifically explores the WB2 class , which requires accuracy for frequencies up to 20 kHz . Here’s why: The IEC 61869-1 standard is the
The IEC 61869 standard introduces several key features and improvements over its predecessor: Revised Scope A: Yes
, which formerly handled additional general requirements for low-power instrument transformers (LPIT). Revised Scope
A: Yes. The standard currently extends up to 800kV AC. For >800kV, you use additional guidelines.
