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Evaluation of errors in a current comparator system used for current transformer testing

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1 Author(s)
Takahashi, K. ; Japan Electr. Meters Inspection Corp., Tokyo, Japan

An error evaluation method for a current transformer (CT) test system using a current comparator is described, and evaluated results of the CT test system are given. The CT test system is designed for use at power frequencies, and at winding ratios of 1:1 to 20:200 with in-phase and quadrature errors of less than 1 ppm and 2 μrad, respectively, over this range

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Instrumentation and Measurement, IEEE Transactions on  (Volume:38 ,  Issue: 2 )