Introduces optional wideband accuracy classes (WB0 to WB4) to address the impact of higher harmonics on modern power grids. Comparison with Related Standards
The 2023 edition officially merges requirements from IEC 61869-6:2016 (low-power instrument transformers) into Part 1. Key Technical Sections
Key practical takeaways
is the international standards series that covers requirements, testing, performance, and application guidance for modern instrument transformers (voltage and current transformers) used for measurement and protection in power systems. It replaced and consolidated much of the older IEC 60044 series to reflect newer accuracy classes, safety, and digital interface considerations.
Main content breakdown (practical lens)
IEC 61869-1 is a part of the International Electrotechnical Commission (IEC) series of standards for instrument transformers. Specifically, this standard deals with the requirements for current transformers and voltage transformers used for measurement and protection purposes in power systems.
: Clause 5.7 specifies accuracy requirements for harmonics and requirements for anti-aliasing filters in digital outputs. Frequency Range : Covers rated frequencies from 15 Hz to 400 Hz , including DC applications. iTeh Standards 2. Service & Environmental Conditions Environment iec 618691 pdf
The standard mandates specific design criteria to ensure safety during operation: