Low loss: No-load losses is about 40% lower than that required in current national standard GB6451-1999; load losses is about 15% lower than that required in current national standard GB6451-1999; Low noise level: <60dB, about 20dB lower than that required in the national standard; Low partial discharge: the full range process of 220kV product is dust-free operation; metal parts and insulation parts inside the transformer are all rounded; the partial discharge is controlled to be lower than 70pc; High short-circuit capacity: the independently designed SFP10-200000/220 transformer of the Company has passed the short-circuit test of the National Transformer Quality Test & Inspection Center (CTQC) (CTQC); Beautiful appearance: oil tank bending corrugated structure, shot blasting de-dusting, powder EFI paint, wide fin radiator, never fade in color; No leakage: all seal with limit position and upper & lower tank edges are sealed along two channels; sealing gasket is imported. We solemnly commit no leakage of oil.