Transformer routine maintenance knowledge is as follows:

In recent years, with the power grid capacity, voltage level, and the advancement of power reform, power supply sector not only to ensure the reliability of power supply, but also to ensure the quality of power supply. three phase pad mounted transformer as an indispensable important power system equipment, its normal work or not directly affect the safe and stable operation of the power grid. Therefore, to ensure the reliable operation of the transformer has important practical significance. China's large transformer over 220 kV in recent years, the occurrence of multiple insulation incidents, mostly with its partial discharge. Therefore, the partial discharge of effective inspection can effectively determine the operating state of the Amorphous Core Transformers.