DANSK DSF/FPREN IEC 60255-181 PDF

This part of IEC 60255 specifies the minimum requirements for functional and performance evaluation of frequency protection. This standard also defines how to document and publish performance test results. This standard covers the functions based on frequency measurement or rate of change of frequency measurements. The standard also covers frequency protection where additional blocking elements are used. This standard defines the influencing factors that affect the accuracy under steady state conditions and performance characteristics during dynamic conditions. The test methodologies for verifying performance characteristics and accuracy are also included in this standard.