About the power standards calibration in the National Institute of Metrology, Romania

Ioana Odor, Dorin Flaminzeanu, Cornel Baltateanu, Dan Mihai Stefanescu

Abstract

The paper presents the way in which the Electrical Laboratory from the Romanian Bureau of Legal Metrology – National Institute of Metrology is managing all its capabilities to assure the traceability to SI for the references for electrical power and energy from the utilities and from the manufacturers of watt-hour-meters. The activity described in this paper is performed by using digital equipments, as well as a very accurate analogical power converter, in accordance with the international recognized methods (IEC, IEEE, EA) for calibrating power and energy meters. Till 2006, this activity of calibration was performed only for sinusoidal conditions, following documented procedures and established uncertainty budget under the quality system of the National Institute of Metrology, Romania. So, the laboratory declared the CMCs for AC power single phase and three phases in the Appendix C of The BIPM key comparison database phase. During the last year, for the first time in Romania, new activities are developed for the calibration of power standards and energy meters under non-sinusoidal conditions, and some of them are present in this paper.

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IMEKO-TC4-2007-077.pdf

DOI

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IMEKO TC

TC4 - Measurement of Electrical Quantities

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