how to connect two 3 phase transformers in parallel?

To connect two 3-phase transformers in parallel, ensure they have the same voltage rating, phase sequence, and impedance. First, check that their primary and secondary windings are configured identically (either both delta or both wye). Connect the transformers’ primary windings to the same supply and their secondary windings to the same load. Finally, verify that the phase angles are aligned to prevent circulating currents. Proper synchronization is crucial for safe and efficient operation.