The utility model relates to a power transformer technical field especially relates to a 330kV transformer is drawn forth line knot and is constructed. The utility model discloses a 330kV transformer is drawn forth line knot and is constructed, include: transformer body and the formula that cut straightly on the transformer body the located seat that risees, the transformer body is equipped with interface flange, cut straightly formula rising seat and installs on interface flange through connecting bolt, and communicate with the transformer body is inside, this internal transformer cable that is equipped with of transformer cut straightly a formula rising seat top installation transformer bushing, transformer bushing afterbody mounting sleeve voltage -sharing ball, and the transformer cable stretches into inside the sleeve pipe voltage -sharing ball, the axle center of sleeve pipe voltage -sharing ball and the axle center coincidence that cut straightly formula rising seat, compared with the prior art, through drawing forth the direct sleeve pipe that risees in the seat through the formula that cut straightly of transformer cable, simple structure, the volume is light, and is with low costs.