Title :
A traceable mains-frequency power standard
Author_Institution :
Meas. Stand. Lab., Ind. Res. Ltd., Lower Hutt, New Zealand
Abstract :
A mains-frequency power standard traceable to voltage and impedance standards has been realised. Standard uncertainties are 26 /spl mu/W/W at unity power factor, and 18 /spl mu/W/W of apparent power at zero power factor. A power bridge balanced to 0.2% is augmented by FFT analysis of samples of the detector voltage, eliminating harmonics and drift in the test sources.
Keywords :
bridge instruments; fast Fourier transforms; measurement standards; power measurement; FFT analysis; impedance standard; power bridge; power factor; traceable mains frequency power standard; voltage standard; Bridge circuits; Detectors; Laboratories; Measurement standards; Phase detection; Phase measurement; Reactive power; Resistors; Testing; Voltage;
Conference_Titel :
Precision Electromagnetic Measurements Digest, 1998 Conference on
Conference_Location :
Washington, DC, USA
Print_ISBN :
0-7803-5018-9
DOI :
10.1109/CPEM.1998.699908
