The power of the isolation transformer

The magnetic flux of the transformer core is related to the applied voltage. In current, the excitation current does not increase with increasing load. Although the load increases the core will not be saturated, the resistance loss of the coil will increase, and the coil will be damaged due to the heat generated by the coil that cannot be dissipated in time if the load increases. If the coil is composed of superconducting materials, the increase in current will not cause heating, but there is also impedance caused by magnetic leakage inside the transformer, the current increases, the output voltage will fall, the larger the current, the lower the output voltage, so the transformer output power cannot be infinite. If the transformer has no impedance, then when the transformer flows through the current, it will produce a particularly large electric force, which is easy to damage the transformer coil, although the power is unlimited but cannot be used. It can only be said that with the development of superconducting materials and iron core materials, the output power of transformers of the same volume or weight will increase, but not infinitely!