The core-loss of a transformer does not include An equivalent circuit of a transformer referred to the primary winding is given in the figure below, where The primary winding is connected to ac power supply V_p - 8000 V. The total core-loss is: Solution 10 . the core loss of a transforemr does not include copper losses . the core loss means iron loss , \\ iron loss include hystersis loss and eddy current loss . 11.