Patent ID: 9175491
Filing Date: 2015-11-03
Classification: E04H,F03D,F05B,Y02E

Abstract:
1. A method for installing or transporting an electrical apparatus in and out of a tower of a wind power installation, wherein the electrical apparatus is provided in a foot of the tower, wherein the tower comprises a reversibly detachable door frame comprising a door opening to an interior of the tower, wherein the door frame has an outer contour that forms an area in a wall of the tower, wherein a size of the electrical apparatus is larger than the door opening but smaller than the outer contour of the door frame, wherein the door frame comprises at least one air intake opening for cooling of the electrical apparatus, wherein the at least one intake opening comprises a first ventilator that transports ambient air from an exterior of the tower to the interior of the tower, wherein the door frame or the wall of the tower comprises an air discharge opening, wherein the air discharge opening comprises a second ventilator that transports air from the interior of the tower to the ambient air at the exterior of the tower, which method comprises the steps of (i) detaching and removing the door frame from the area in the wall of the tower; (ii) attaching the electrical apparatus to a horizontal loading beam of a lifting appliance; (iii) shifting the electrical apparatus along the horizontal loading beam; (iv) transporting the electrical apparatus into or out of the interior of the tower through the area in the wall formed by the outer contour of the door frame; and (v) reattaching the door frame to the area in the wall of the tower.