Recent Articles

How to Perform Vector Group Test in Power Transformers
The vector group test of the power transformer verifies the winding configuration and the phase displacement between the HV and LV windings of a three-phase transformer. This test is done to confirm the transformer matches with the name plate vector group. The vector group test is essential commissioning …

Magnetic Core Balance Test of Power Transformer: Procedure, Results & Interpretation
The magnetic core balance test is performed in a three phase transformer to check the symmetry of the magnetic path in the core and detect interturn faults in the power transformer. This test is basically based on the principle of flux linkage and it is expected that since …

