The invention provides a low-fault physical heat dissipation buried
transformer substation which comprises a box-type
transformer substation, a heat dissipation box and a through groove. The through groove is formed in one side of the center of the top of the box-type
transformer substation, the heat dissipation box is fixedly connected to the top of the box-type transformer substation and locatedat the upper end of the through groove, and the top of the heat dissipation box is fixedly connected with a rain-shielding water-collecting cover; and the top of the rain-shielding water-collecting cover is fixedly connected with an air inlet cylinder, and a
wind direction device is movably connected to a top center of the air inlet cylinder. According to the low-fault physical heat dissipation buried transformer substation, a wind vane rotates under the influence of
wind power, a wind deflector is obliquely arranged and located on the same horizontal line with the head-
tail direction of thewind vane, and therefore after the wind vane rotates to one side of the
wind direction, the wind deflector corresponds to one side of the
wind direction; and a wind shield is connected with the innerwalls of the air inlet cylinders on two windless sides to block air inlet holes in the windless sides,
convection is formed on the two sides of the wind deflector, natural wind blows down
cold air along the inclined surface of the wind deflector, the
cold air enters the heat dissipation box and the box-type transformer substation and is guided out through an
exhaust pipe, and therefore heat is rapidly guided out, and the heat dissipation effect is good.