Title :
An improved current-comparator-based power standard at 120 V/5 A, 50 Hz – 60 Hz, with an uncertainty of 2.5 µW/VA (k = 1)
Author :
So, Eddy ; Arseneau, Rejean ; Angelo, Dave
Author_Institution :
Inst. for Nat. Meas. Stand., Nat. Res. Council of Canada, Ottawa, ON, Canada
Abstract :
An 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, positive or negative power, at 120 V, 5 A, and 50 or 60 Hz. The improved power standard has an estimated basic uncertainty of 2.5 μW/VA at k = 1.
Keywords :
calibration; current comparators; power meters; active-reactive power meter; calibration; current 5 A; current-comparator-based power standard; energy meters; frequency 50 Hz; frequency 60 Hz; voltage 120 V; Bridge circuits; Current measurement; Power measurement; Reactive power; Standards; Uncertainty; Voltage measurement; Current-comparator; power bridge; power standard; uncertainty;
Conference_Titel :
Precision Electromagnetic Measurements (CPEM), 2012 Conference on
Conference_Location :
Washington, DC
Print_ISBN :
978-1-4673-0439-9
DOI :
10.1109/CPEM.2012.6250875
