A current-comparator-based system for calibrating active/reactive power and energy meters

From National Research Council Canada

DOI	Resolve DOI: https://doi.org/10.1109/TIM.1983.4315028
Author	Search for: Moore, W. J. M.¹; Search for: So, Eddy¹
Affiliation	National Research Council of Canada. NRC Institute for National Measurement Standards
Sponsor	Search for: IEEE; Search for: NBS; Search for: URSI
Format	Text, Article
Conference	CPEM 82 Digest: 1982 Conference on Precision Electromagnetic Measurements, June 28-July 1, 1982, Boulder, Colorado, USA
Subject	automatic voltage control; bridge circuits; capacitors; control systems; microcomputers; power measurement; reactive power; thermal factors; voltage-controlled oscillators; watthour meters
Abstract	A system for calibrating active/reactive power and energy meters under sinusoidal conditions using a current comparator bridge is described. Measurement can be made at any power factor from zero lag through unity to zero lead, positive or negative power, at 100 to 120 V, 1 to 5 A, and 50 or 60 Hz. The system features a digital oscillator, a thermal rms ac/dc voltage comparator, an automatically compensated capacitor for producing an accurate and stable reactive component, and a microcomputer for control and data reduction. The systematic uncertainty of the calibration system is estimated to be not more than 15 parts per million (ppm).
Publication date	1983
In	IEEE Transactions on Instrumentation and Measurement 32, no. March 1 (1983): 147–149.
Language	English
NRC number	NRC-INMS-1804 NRC-INMS-4433
NPARC number	5763984
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Record identifier	ed8648cd-85ca-4f52-a36b-c33e7fe77a76
Record created	2009-03-29
Record modified	2020-05-08

Date modified:: 2024-10-09