The utility model provides an installation of single phase transformer low pressure sleeve pipe is with seat structure that risees, the low pressure sleeve pipe includes head end sleeve pipe and tail end sleeve pipe, wherein, head end sleeve pipe and tail end sheathed tube bottom mounting are structural at same rising seat, just be provided with the shielding layer in the seat structure that risees. The problem that near low pressure sleeve pipe metal components generates heat can be solved to the seat structure that risees, reduces transformer supplementary load loss.