An improved current-comparator-based power standard with an uncertainty of 2.5 uW/VA (k=1)

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Proceedings titleIEEE Transactions on Instrumentation and Measurement - Special Issue
Conference2012 Conference on Precision Electromagnetic Measurements (CPEM), 1-6 July 2012, Washington DC
Pages# of pages: 5
Subjectcurrent-comparator; power bridge; power standard; uncertainty
AbstractAn improved standard derived from a current power bridge for calibrating active/reactive power and energy meters under sinusoidal conditions is described. Measurements can be made at any power factor from zero lag through unity to zero lead, positive or negative power, at 120 V,5 A, and 50 or 60 Hz. The improved power standard has an estimated uncertainty of not more than 2.5 uW/VA at k=1. Special high accuracy current and voltage range extenders have been incorporated to extend the current and voltage ranges up to 200 A and 1200 V, respectively.
Publication date
AffiliationMeasurement Science and Standards; National Research Council Canada
Peer reviewedYes
NPARC number20917962
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Record identifier27b197e3-e8c8-4040-b9fa-91f47a49a5d9
Record created2012-11-05
Record modified2016-05-09
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