The TRTC is designed to be a reference transformer for the accuracy verification of three-phase transformer turns ratio testers. It’s intended to be used with the DV Power TRT series of instruments.

This accessory instrument is available for both single-phase and three-phase tests. It ranges up to 4800 transformer turns ratios and test voltages from 1 V to 250 V.

The available turns ratios are 1, 10, 20, 50, 200, 800, 2400, and 4800. The turns ratio calibrator achieves the best accuracy of the 0,2 %.