Improvements in the Performance of a Calibration System for Rogowski Coils at High Pulsed Currents

This paper describes improvements of a calibration system for Rogowski coils at high pulsed currents developed at the National Research Council of Canada. This system is designed to provide traceable calibrations of Rogowski coils and weld current meters for users in resistance welding industry, sec...

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Bibliographic Details
Published in:IEEE transactions on instrumentation and measurement 2017-06, Vol.66 (6), p.1636-1641
Main Author: Djokic, Branislav V.
Format: Article
Language:English
Subjects:
Calibration
Coils
Current measurement
Current transformers
Magnetic cores
measurement uncertainty
Measuring instruments
pulsed current measurement
Repair & maintenance
Resistance welding
Rogowski coil
weld current meter
Welding
Windings
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Summary:This paper describes improvements of a calibration system for Rogowski coils at high pulsed currents developed at the National Research Council of Canada. This system is designed to provide traceable calibrations of Rogowski coils and weld current meters for users in resistance welding industry, secondary laboratories, and other organizations. The accuracy of the improved calibration system is related to the improved measurement of harmonic content of the test pulsed currents and is estimated for individual tests.
ISSN:0018-9456
1557-9662
DOI:10.1109/TIM.2016.2624578