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

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DOIResolve DOI: http://doi.org/10.1109/TIM.2013.2239015
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TypeArticle
Journal titleIEEE Transactions on Instrumentation and Measurement
ISSN0018-9456
Volume62
Issue6
Article number6466383
Pages17041709; # of pages: 6
SubjectCurrent comparators; High-accuracy; Power bridges; Power factors; Power standard; Sinusoidal conditions; uncertainty; Voltage ranges; Comparators (optical); Electric power factor; Electric power measurement; Uncertainty analysis
AbstractAn improved power standard derived from a current comparator 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, at 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 μW/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. © 2013 IEEE.
Publication date
LanguageEnglish
AffiliationNational Research Council Canada (NRC-CNRC); Measurement Science and Standards (MSS-SME)
Peer reviewedYes
NPARC number21269992
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Record identifier70f0f594-4aa7-4932-8f8f-bdfb00b9143a
Record created2013-12-13
Record modified2016-05-09
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