Method and device for handling, in particular for repairing or replacing, busbars on wind power plants

A method for handling busbars (27a to 27f, 28a to 28f, 29a to 29f) on wind power plants (10), in which a power connection between a generator device (16) disposed in an upper region of the wind power plant (10) and a substation (22) located at a base area of the wind power plant (10) consists of a plurality of busbar subregions (27, 28, 29), each comprising a certain number of mutually interconnected busbars (27a to 27f, 28a to 28f, 29a to 29f), wherein the busbars (27a to 27f, 28a to 28f, 29a to 29f) are fixed by fixing devices (35) to an inner wall (13) of a tower (11) of the wind power plant (10) consisting of tubular segments (24 to 26) that are arranged on top of one another, wherein the busbar subregions (27, 28, 29) are connected in an electrically conductive manner by means of connection bars (31, 32), which respectively connects an upper busbar (27f, 28f) of a lower busbar subregion (27, 28) with a lower busbar (28a, 29a) of an upper busbar subregion (28, 29), wherein the busbar (27a to 27f, 28a to 28f, 29a to 29f) which is to be handled is exposed and if applicable removed from its respective busbar subregion (27, 28, 29) by removing of the busbars (27a to 27f, 28a to 28f, 29a to 29f), arranged above it, of its busbar subregion (27, 28, 29) and of the associated connection bar (31, 32), and wherein after the repair or the replacement of the busbar subregion (27, 28, 29) is produced again by inserting the removed busbars (27a to 27f, 28a to 28f, 29a to 29f) in reverse sequence, the method comprising the step of:

• at least partially equalizing the weight of at least one busbar (27a to 27f, 28a to 28f, 29a to 29f) arranged directly above or below the busbar (27a to 27f, 28a to 28f, 29a to 29f) that is to be repaired or replaced by means of a relief arrangement (50;
• 60) by applying a tensile force to the relevant busbar (27a to 27f, 28a to 28f, 29a to 29f).