Transformer Loss

When the primary winding of the transformer is powered on, the magnetic flux generated by the coil flows in the core, since the core itself is also a conductor, inductive potentials on the plane perpendicular to the magnetic line, this potential forms a closed circuit on the section of the core and Generate current, as if P a vortex is called "eddy current". This "eddy current" increases the loss of the transformer and increases the temperature rise of the iron core thermal transformer of the transformer. We are called "iron loss" by the loss caused by "eddy current".
Also to wind the transformer needs to use a large number of copper wires, these copper wires have a resistor. When the current flows, this resistance will consume a certain power. This part of the loss tends to be calorie, and we call this loss "copper loss". . Therefore, the temperature rise of the transformer is mainly produced by iron damage and copper damage. Since the transformer has iron loss and copper loss, its output power is always less than the input power.