Determination of Equivalent Inductance of Current Shunts at Frequency Up to 200 kHz

We report on the measurement techniques and results of the equivalent inductance of current shunts at frequencies from 50 to 200 kHz. With a three-branch binary inductive current divider and difference detection transformer, the equivalent inductance of the cagelike shunts was measured against a set of four-terminal resistors whose time constants were accurately determined. The verification experiments for the systematic errors of the measurement setup and the phase comparator with the current ratio of 2:1 are also presented.