First, let’s clarify the standard. IEC 61869 is a multi-part standard published by the International Electrotechnical Commission (IEC). It replaces the older IEC 60044 series. This standard specifies the requirements for —devices that step down high voltage and high current to measurable values for meters and relays.
The full series includes:
Often provides public "preview" PDFs that include the Table of Contents and Scope sections. IEC 61869-1:2023 iec 618691 pdf best
| Part Number | Title | Best For | | :--- | :--- | :--- | | | General Requirements | Understanding common tests, ratings, and markings | | IEC 61869-2 | Current Transformers (CTs) | Protection CTs (5P, 10P) and Metering CTs (0.2, 0.5) | | IEC 61869-3 | Inductive Voltage Transformers | Traditional VTs for 50/60 Hz | | IEC 61869-4 | Combined Transformers | CT+VT in one unit | | IEC 61869-5 | Capacitor Voltage Transformers (CVTs) | HV and EHV coupling capacitors | | IEC 61869-6 | Low-power Stand-alone Instrument Transformers (LPIT) | Digital substations (Rogowski coils, dividers) | | IEC 61869-9 | Digital Interface for Instrument Transformers | Merging units and IEC 61850-9-2 LE | First, let’s clarify the standard
: For wideband accuracy (WB2), ensure the secondary winding load is as low as possible (e.g., ) to minimize self-distortion. This standard specifies the requirements for —devices that
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