how to reduce power loss in transformer?

To reduce power loss in a transformer, focus on minimizing both copper losses and core losses. Copper losses, which occur due to resistance in the windings, can be reduced by using thicker conductors or materials with lower resistivity. Core losses, caused by hysteresis and eddy currents in the magnetic core, can be minimized by using high-quality core materials and optimizing the core design. Additionally, operating the transformer at its rated capacity and maintaining proper cooling can further enhance efficiency.