—

Compare with general laminated iron-core transformer, the transformers have no-load current reduction of more than 66.9% in average and no-load losses reduction of 16% in average, load losses is decrease about 9.8% in average. The noise is superior to laminated iron-core transformer of the same kind. The temperature rises of oil level and high voltage winding and low voltage winding are lower than the temperature rise limited, so it has certain over-load capability. HV winding is paralleled connection with two-columns, LV winding is series connection with two-columns, which can adopt both parallel and series connection toreach the 2x230V low voltage distribution. Excellent short-circuit proof capacity and high reliability.