Nacelle of a wind power installation and installation method

Abstract

A nacelle that forms part of a wind power installation and is configured to be installed on a tower of the wind power installation, has an installation transformer that is configured to transform electrical power generated by the wind power installation for feeding into a medium-voltage grid, and has an electrical interface for connecting at least one medium-voltage line, wherein the line runs through the tower of the wind power installation into the nacelle, and also has a pulling device that is installed in the nacelle and comprises a pulling means, which is configured to pull the line into the nacelle for connection to the electrical interface, and has a supporting structure that is installed in the nacelle, has a receiving region for the pulling means or the line and is configured to keep the line within a predetermined bending radius in the receiving region. The supporting structure has a number of rollers that are mounted on the supporting structure so as to be able to move back and forth between an advanced, first position and a retracted, second position, wherein, in the first position, the number of rollers extend further into the receiving region than in the second position.

Dependencies are inferred from the claim text.