short circuit test of transformer gives what?

The short circuit test of a transformer provides essential information about its equivalent circuit parameters, particularly the copper losses and impedance. During this test, the primary winding is connected to a reduced voltage, causing a short circuit in the secondary winding. This allows for the measurement of the current and voltage, which helps determine the transformer’s short circuit impedance and efficiency under load conditions. Overall, it is crucial for assessing the transformer’s performance and thermal characteristics.