Title :
Power factor calibrator
Author :
Zupunski, I. ; Holicek, L. ; Vujicic, V. ; Milovancev, S.
Author_Institution :
Fakultet Tehnickih Nauka u Novom Sadu, Novi Sad, Serbia
Abstract :
A power factor calibrator, using a precise wattmeter as calibration tool, to obtain short and long term stability and accuracy, is described. By frequently applying auto-calibration procedure most of the parasitic factors are eliminated and the accuracy depends mainly on the wattmeter´s error at zero power factor. The calibrator uncertainty of /spl plusmn/0.003/spl deg/ is achieved.
Keywords :
automatic test equipment; calibration; digital instrumentation; function generators; measurement errors; phase measurement; phase meters; power factor measurement; wattmeters; waveform generators; 0.5 to 5 A; 20 to 120 V; 30 to 1000 Hz; accuracy; active power; auto-calibration procedure; calibration tool; dual channel function generator; long term stability; parasitic factors elimination; phase angle measurement; phase shift error; power factor calibrator; precise digital wattmeter; short term stability; uncertainty; Calibration; Distortion measurement; Frequency; Phase measurement; Power generation; Reactive power; Signal generators; Stability; Voltage; Wattmeters;
Conference_Titel :
Precision Electromagnetic Measurements Digest, 1996 Conference on
Conference_Location :
Braunschweig, Germany
Print_ISBN :
0-7803-3376-4
DOI :
10.1109/CPEM.1996.547345
