Patent ID: 8860238
Filing Date: 2014-10-14
Classification: F03D,F05B,H02B,H02G,Y02E,Y02P

Abstract:
1. A method for repairing and replacing busbars ( 27 a to 27 f , 28 a to 28 f , 29 a to 29 f ) on erected, existing 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 ( 27 a to 27 f , 28 a to 28 f , 29 a to 29 f ), wherein the busbars ( 27 a to 27 f , 28 a to 28 f , 29 a to 29 f ) 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 ( 27 f , 28 f ) of a lower busbar subregion ( 27 , 28 ) with a lower busbar ( 28 a , 29 a ) of an upper busbar subregion ( 28 , 29 ), wherein the busbar ( 27 a to 27 f , 28 a to 28 f , 29 a to 29 f ) which is to be handled is exposed and if applicable removed from its respective busbar subregion ( 27 , 28 , 29 ) by removing of the busbars ( 27 a to 27 f , 28 a to 28 f , 29 a to 29 f ), 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 ( 27 a to 27 f , 28 a to 28 f , 29 a to 29 f ) in reverse sequence, the method comprising the step of: at least partially offsetting the weight of at least one busbar (