Why does magnetization current impose an upper limit on voltage applied to transformer core?

Magnetization current, which is the current required to establish the magnetic field in the transformer core, imposes an upper limit on the voltage applied to the transformer because excessive voltage can lead to saturation of the core. When the core saturates, it cannot effectively contain the magnetic field, causing a drastic increase in magnetization current and resulting in overheating and potential damage. Therefore, to ensure efficient operation and prevent core saturation, the applied voltage must be kept within a specific range.