The main difference between conventional pole transformer no-load operation and load operation is mainly reflected in the secondary coil.
Transformer The principle of using electromagnetic induction to change the AC voltage of the device, the main component is the primary coil, secondary coil and core (core). In electrical equipment and wireless circuits commonly used for lifting voltage, matching impedance, safety isolation. 13.8kv single phase transformer no-load operation, only the consumption of no-load loss, that is, iron loss and stray, it is 6% of the total capacity, load operation is no load loss + load loss, that is, copper loss, is the total consumption of the transformer.