Additional requirements for Inductive Voltage Transformers (VTs)
IEC 61869-1 is the for all instrument transformers (voltage, current, and combined types). It specifies general rules and requirements that are supplemented by other parts of the IEC 61869 series (e.g., 61869-2 for current transformers, 61869-3 for inductive voltage transformers, 61869-5 for capacitive voltage transformers, etc.).
: Sets requirements for liquid-filled and dry-type transformers, including earthing and terminal marking. Iec 61869-1 Pdf
IEC 61869-1 is the foundational "product-family standard" that defines general requirements for newly manufactured instrument transformers. It serves as the primary document for the entire IEC 61869 series, replacing the older IEC 60044 series to modernize and harmonize requirements across different transformer types. Core Purpose and Scope
The standard has undergone significant updates to reflect modern electrical systems: The IEC regularly publishes updates and amendments to
Ensure you are purchasing the most recent edition. The IEC regularly publishes updates and amendments to account for changing grid technologies and materials science. Conclusion
Verifies insulation under normal frequency stress. 61869-2 for current transformers
Standard ambient air temperature ranges (typically -5°C to +40°C for indoor use). Requirements for equipment installed at altitudes up to 1,000 meters (with derating factors for higher elevations). Pollution Levels: