AC shunt calibrations at NRC

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Proceedings title2010 NCSL International Workshop and Symposium
Conference2010 NCSL International Workshop and Symposium, July 25-29, 2010, Providence, Rhode Island, USA
Pages19; # of pages: 9
AbstractNRC offers calibration of ac shunts from milliamperes up to 100 A, in the 10 Hz to 100 kHz frequency band with expanded uncertainties between 10 A/A for currents in the milliampere range to 50 A/A at 100 A and 100 kHz. The paper describes the design of NRC ac standard shunts, as well as NRC experience in calibrations of commercial shunts. The ac-dc difference of some commercial low current shunts is load sensitive at higher frequency ranges. The paper discusses reasons for this sensitivity and suggests mitigating solutions.
Publication date
AffiliationNRC Institute for National Measurement Standards; National Research Council Canada
Peer reviewedYes
NPARC number18116650
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Record identifier4c78bc64-0773-48d1-aa1b-df171459ad85
Record created2012-03-09
Record modified2016-05-09
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