Title :
High-current AC current transformer calibration using an automated sampling system
Author :
Van den Brom, Helko E. ; Jol, Leendert ; Rietveld, Gert ; So, Eddy
Author_Institution :
VSL Dutch Metrol. Inst., Delft, Netherlands
Abstract :
A measurement setup is developed for the accurate ratio measurement of AC current transformers (CTs) for primary currents up to 5 kA. A unique property of the system is the use of digitizers for sampling of the secondary current signals and step-down transformers with a large number of current ratios. This allows for accurate comparison of CTs even when their nominal ratios are not equal.
Keywords :
calibration; current transformers; CT; automated sampling system; digitizers; high-current AC current transformer calibration; measurement setup; ratio measurement; secondary current signals; step-down transformers; Calibration; Current measurement; Current transformers; Resistors; Voltage measurement; Voltmeters; Windings; Current transformers; alternating current; current measurement; current ratio; digital sampling;
Conference_Titel :
Precision Electromagnetic Measurements (CPEM), 2012 Conference on
Conference_Location :
Washington, DC
Print_ISBN :
978-1-4673-0439-9
DOI :
10.1109/CPEM.2012.6250697
