how to perform short circuit test of transformer?

To perform a short circuit test on a transformer, first, ensure safety by de-energizing the transformer. Connect the primary winding to a variable voltage source while keeping the secondary winding shorted. Gradually increase the primary voltage until the rated current flows through the primary winding. Measure the voltage, current, and power during the test. This data helps determine the transformer’s impedance, losses, and efficiency under short circuit conditions. Always follow safety protocols during testing.