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The results of a bilateral comparison on active/reactive power meter calibrations between the National Institute of Standards and Technology (NIST) and the National Research Council (NRC) will be presented. The comparison was implemented using a transfer standard consisting of a highly stable commercial sampling-type power/energy meter. The measurements were made at 120 V, 5A, 50 Hz and 60 Hz, at...
The design of delta and star Steinmetz Symmetrizers and applications in unbalanced three phase 4-wire networks supplied from asymmetrical voltages are studied in this paper. Unbalanced current and harmonics shorten motor life spans. An unbalance factor (mi) is defined and harmonics are studied using Superharm (4-wire) models. Two case studies, 1 & 2 are conducted. Case 1 has 1A and 1B and Case...
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