Top cover of box-type transformer substation of wind power plant

The invention discloses a box-type transformer substation top cover of a wind power plant, and relates to the technical field of box-type transformer substations, the box-type transformer substation top cover of the invention comprises a top plate and eaves plates arranged around the top plate, the eaves plates are provided with a plurality of through holes and are connected with air ducts communicated with the through holes, and the eaves plates are provided with air draft fans. The transformer has the advantages that the air draft fan and the air duct are arranged on the eaves board, the air inlet of the air duct is formed in the upper portion of the transformer, hot air on the upper portion of the transformer can be directly exhausted and discharged to the outside, a free hot air discharging mode of an original structure is converted into a passive discharging mode of the application structure, the heat dissipation mode is changed, and the heat dissipation efficiency is improved. The protective cover is ar