Performed on a representative transformer to prove the design meets the standard.
: Establishes standard terminology across the entire 61869 series to prevent confusion between different transformer types.
: It covers both analogue and digital output instrument transformers.
The IEC 61869-1 framework establishes high-level technical and conformity criteria that all instrument transformers must meet:
The series was created to replace the older IEC 60044 standards, moving toward a more modular structure. A full standard for a specific product is composed of plus the specific part for that device.
The importance of IEC 61869-1 cannot be overstated. By standardizing the requirements for instrument transformers, the IEC aims to ensure: