TRT03 series

The TRT is a true three-phase, fully automatic test set, specially designed for a turns ratio, a phase shift, and an excitation current measurement of power, distribution, and instrument transformers. The TRT determines the transformer turns ratio by accurately measuring voltages across the unloaded transformer windings. As a test result it displays the ratio of these voltages. This ratio of voltages can also be automatically rescaled to match the physical ratio of a number of turns on a transformer high and low voltage side.