Title :
A method for calibration of partial discharge calibrators
Author :
Gunnarsson, O. ; Bergman, A. ; Rydler, K.-E.
Author_Institution :
Swedish Nat. Testing & Res. Inst., Boras, Sweden
Abstract :
A method for calibration of partial discharge calibrators has been developed based on passive integration of the induced charge. The voltage over a known capacitor is measured by a calibrated digital sampling voltmeter and the charge is calculated as the voltage multiplied by the capacitance. The best achieved uncertainty is /spl plusmn/2% for a coverage factor k=2.
Keywords :
calibration; digital voltmeters; partial discharge measurement; calibration; capacitance; coverage factor; digital sampling voltmeter; induced charge; partial discharge calibrator; passive integration; uncertainty; Calibration; Capacitance measurement; Capacitors; Charge measurement; Current measurement; Partial discharge measurement; Partial discharges; Sampling methods; Voltage; Voltmeters;
Conference_Titel :
Precision Electromagnetic Measurements Digest, 1998 Conference on
Conference_Location :
Washington, DC, USA
Print_ISBN :
0-7803-5018-9
DOI :
10.1109/CPEM.1998.699868
