From years 2010 to 2012, a key comparison of power standards at 50/60 Hz was conducted in the SIM region. The comparison included measurements of active and reactive power at three frequencies, aiming at providing support to high accuracy measurement needs of reactive power. This paper presents the results of the SIM.EM-K5 comparison and the assessment of the link between this comparison and the CCEM-K5 key comparison on 50/60 Hz power completed in 2001.
