Transformatory Source (VRT) has the scope of application that Manual control, Testing of Current Transformers (CT), Testing of Voltage Transformers (VT) and using the mains frequency. It is self contained and includes all the required power controls to generate the test voltage & current, the appropriate reference CTs and VTs, a set of burdens to load the test CT/VT to the required operating point and an Automatic CT/VT comparator to measure the errors of the test specimen transformer with respect to the reference transformer.

• High reliability