Title :
The establishment of DC power meter calibration system at China Electric Power Research Institute
Author :
Jingfen Bai ; Fantao Lin ; Da Lu ; Xiaohui Song ; Sha Zhao ; Haibo Yu ; So, Eddy
Author_Institution :
China Electr. Power Res. Inst., Beijing, China
Abstract :
The establishment of a DC power meter calibration system using a DC current comparator and a synchronous sampling technique at China Electric Power Research Institute (CEPRI) is described. Measurements can be made at DC voltages ranging from 10mV to 1000V, and DC currents from 10mA to 500A. The system features a synchronous voltage/current sampling system and a multi-ratio DC current comparator. The uncertainty of the DC power meter calibration system is estimated to be not more than 120 μW/W. A comparison with another DC power meter calibration system at the National Institute of Metrology China (NIMC) is discussed.
Keywords :
calibration; current comparators; electric current measurement; measurement uncertainty; power meters; sampling methods; voltage measurement; CEPRI; China Electric Power Research Institute; DC current measurement; DC power meter calibration system; DC voltage measurement; NIMC; National Institute of Metrology China; current 10 mA to 500 A; multiratio DC current comparator; synchronous voltage-current sampling system; voltage 10 mV to 1000 V; Calibration; Current measurement; Power systems; Synchronization; Uncertainty; Voltage control; Voltage measurement; DC current comparator; DC power; calibration system; synchronous sampling;
Conference_Titel :
Precision Electromagnetic Measurements (CPEM 2014), 2014 Conference on
Conference_Location :
Rio de Janeiro
Print_ISBN :
978-1-4799-5205-2
DOI :
10.1109/CPEM.2014.6898432
