ndb Technologies

ndb TechnologiesModel ART-3D - Real Three Phase Automatic Ratio Tester For Power Transformer

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The ART-3D™ series of ratio meters are high precision instruments, designed to measure turn ratios, phase displacements, excitation currents of single phase and three phase power, distribution and instrument trans­formers in conformity to the IEEE C57.12.90 & IEC 60076.