Over a century, principle of power transformer has not ever been changed, but along with the development and progress of the times, the advanced production facilities are being perfected, the transformer with amorphous alloy core produced by our company adopts new style magneto conductive material, i.e. amorphous alloy core. The no-load loss of this kind of transformer is 80% lower than that of stalloy cored transformer, and no-load current also is 80% lower. It is the most ideal distribution transformer in energy saving at present, especially suitable for the rural power grids and developing districts, where the load factor is rather low. The amorphous alloy cored power transformer has advantages of low no-load loss, energy saving and environment protection, are fully in accordance with our national industrial policy "resource-saving, environmentallyfriendly, establish a REEF Society". The oil immersed transformer also has ability to reduce and eliminate CO, SO and NOx these harmful gases, is titled as "green material" of 21st century.