NDLI: To What Extent Can the Current Amplitude Linearity of Rogowski Coils Be Verified?

Content Provider	IEEE Xplore Digital Library
Author	Djokic, B.V. Ramboz, J.D. Destefan, D.E.
Copyright Year	1963
Abstract	Calibrations of Rogowski coils at power frequencies are often performed at currents of only tens of amperes even though the coils are used at currents larger by two to three orders of magnitude, or even more. The assumption of an ideal linearity versus current amplitude is true for ideal coils. This paper addresses the question on practical significance as to what extent the current amplitude linearity of real Rogowski coils can be verified at power frequencies. For this task, several different types of Rogowski coils were evaluated using a digital sampling system, with the best calibration uncertainties (k = 2) of 50 μA/A for magnitude and 50 μrad for phase and the estimated linearity better by a factor of two or more.
Sponsorship	IEEE Instrumentation and Measurement Society Bureau international des poids et mesures IEEE International Bureau of Weights and Measures (BIPM) URSI NBS Agency Ind. Sci. & Technol., Min. Int. Trade & Ind. Sci. Council Japan International Union of Pure and Applied Physics (IUPAP) NIST NRCC National Conference of Standards Laboratories (NCSL) Allen Osborne Associates Andeen-Hagerling, Inc. Ballantine Lab. Inc. Clarke-Hess Communications Research Corp. Fluke Corporation Guildline Instruments Hewlett-Packard Co. Julie Res. Lab. Inc. Keithley Instruments, Inc. Measurements International Ltd. Canada QuadTech Inc. Quantum Design Inc. Rotek Instrum. Corp. Tegam Inc. Tektronix Inc
Starting Page	2409
Ending Page	2414
Page Count	6
File Size	441620
File Format	PDF
ISSN	00189456
Volume Number	60
Issue Number	7
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2011-07-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Coils Linearity Calibration Temperature measurement Current measurement Inductance Pins Rogowski coil AC current measurement calibration digital sampling linearity
Content Type	Text
Resource Type	Article
Subject	Instrumentation Electrical and Electronic Engineering

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