Inter-Laboratory Comparison of Transfer Standard for DC Power Measurements in Nominal and Distorted Conditions

The metrological characterization of DC static meters in normal operating conditions poses several challenges, both from a methodological and technological point of view. This paper presents the preliminary results of an inter-laboratory comparison between METAS and INRIM. The obtained results have two objectives: to prove the stability of the reference systems, and to assess the possible effects of AC disturbances in DC power measurements.