A Comparison Between the NIST PJVS-Based Power Standard and the NRC Current- Comparator-Based Power Standard

This paper presents the results of a comparison of active/reactive power meter calibrations between the National Institute of Standards and Technology and National Research Council. The comparison was implemented using a transfer standard consisting of a highly stable commercial sampling-type power/energy meter. Active and reactive power measurements were made at 120 V, 5 A, 50 Hz, and 60 Hz. For active power, the measurements were made at applied current phase angles of 0°, +60°, and -60°. For reactive power, the measurements were made at applied current phase angles of +60°, +90°, -60°, and -90° . The results of the comparison indicate agreement to within the stated uncertainties of the participants.