Title :
Three-phase primary ac power sampling standard with improved frequency resolution
Author :
Ihlenfeld, W. G Kurten ; Dauke, K. ; Suchy, A. ; Rather, P.
Author_Institution :
Phys.-Tech. Bundesanstalt, Braunschweig
Abstract :
This paper describes the new PTB three-phase alternating (ac) power sampling standard. Based on two cascaded direct-digital-synthesizers, it allows calibrations with high frequency-resolution. The system is intended to reduce measurement uncertainties of three-phase power meter calibrations to less than 10 muW/VA and to alleviate staff´s daily burden of calibration routine.
Keywords :
calibration; measurement uncertainty; power meters; direct-digital-synthesizers; frequency resolution; measurement uncertainty reduction; three-phase power meter calibrations; three-phase primary ac power sampling standard; Calibration; Clocks; Current transformers; Frequency synchronization; Frequency synthesizers; Microcontrollers; Sampling methods; Signal sampling; Signal synthesis; Voltmeters;
Conference_Titel :
Precision Electromagnetic Measurements Digest, 2008. CPEM 2008. Conference on
Conference_Location :
Broomfield, CO
Print_ISBN :
978-1-4244-2399-6
Electronic_ISBN :
978-1-4244-2400-9
DOI :
10.1109/CPEM.2008.4574865
