Title :
DC high current ratio standard based on series-parallel calibration method
Author :
Shao, Haiming ; Lin, Feipeng ; Hua, Xiaoxin ; Liang, Bo ; Qu, Kaifen ; Pan, Yang
Author_Institution :
Tianjin Univ., Tianjin, China
Abstract :
Inherent ratios of DCCs are revealed between series and parallel connections of n sections of primary windings with the same nominal turns. By keeping the current buses geometric position fixed, leakage flux effects are maintained unchanged between series and parallel switch. A series of DCCs is calibrated under rated ampere turns for current dissemination from 5 A to 5 kA.
Keywords :
calibration; comparators (circuits); switches; DC high current ratio standard; current 5 A to 5 kA; current dissemination; direct current comparator; fixed current buses geometric position; leakage flux effects; parallel switch; series switch; series-parallel calibration method; Calibration; Current measurement; Electromagnetic measurements; Magnetic cores; Magnetic flux; Magnetic shielding; Measurement standards; Resistors; Switches; Toroidal magnetic fields; Direct Current; Direct Current Comparator (DCC); Leakage Flux;
Conference_Titel :
Precision Electromagnetic Measurements (CPEM), 2010 Conference on
Conference_Location :
Daejeon
Print_ISBN :
978-1-4244-6795-2
DOI :
10.1109/CPEM.2010.5544838
