Broadband Ac-dc Difference Calibrations of Current Shunts up to 100 A at NIST

Published

July 1, 2000

Author(s)

Joseph R. Kinard Jr., Thomas E. Lipe Jr., Clifton B. Childers, Owen B. Laug, Jon R. Pratt

Abstract

NIST is now offering broadband, ac-dc difference calibrations of current shunts from 3 A to 100 A, and at frequencies up to 30 kHz, as special tests. We present an overview of this new service including the design and construction of the NIST standard, high-current shunts. We describe the build-up procedure and two-stage current transformers being used to characterize the NIST standards, as well as the uncertainty analysis for these calibrations. Future plans, such as the extension of the frequency range up to 100 kHz, are also discussed.

Proceedings Title

Proc. 2000 National Conference of Standards Laboratories Workshop and Symposium (NCSL)

Conference Dates

July 16-20, 2000

Conference Location

Toronto, 1, CA

Pub Type

Conferences

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Keywords

ac-dc difference, calibration, current shunts, current transformer, thermal converter, thermal transfer

Citation

Kinard Jr., J. , Lipe Jr., T. , Childers, C. , Laug, O. and Pratt, J. (2000), Broadband Ac-dc Difference Calibrations of Current Shunts up to 100 A at NIST, Proc. 2000 National Conference of Standards Laboratories Workshop and Symposium (NCSL), Toronto, 1, CA, [online], https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=24120 (Accessed October 14, 2025)