H. Shao, Feipeng Lin, Xiaoxin Hua, B. Liang, Kaifeng Qu, Yang Pan
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DC high current ratio standard based on series-parallel calibration method
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 5A to 5kA.