The present disclosure discloses a system for raising from and lowering to the ground level a component of a wind turbine to and from a nacelle mounted on a tower. The system includes a winch system which is disposed on ground in the vicinity of the tower, a first pulley which is fitted at the base of the tower, a d...

A system for de-erection and re-erection of a blade of a wind turbine, the system comprising at least one first pulley, at least one second pulley, at least one third pulley, a receptacle disposed over a substantial length of the blade, a lifting line passing over the at least one first pulley, the at least one seco...

A method and an arrangement for removing and lifting of a slewing ring bearing of a wind turbine after a blade from a rotor hub of the wind turbine is removed, is disclosed. The arrangement and method enables the lowering and lifting of the wind turbine without the need of large and heavy cranes so that the replacem...

The present disclosure envisages a system for de-erection and re-erection of a blade 16 of a wind turbine. The system comprises a set of pulleys 34, 35, 36 and 37, a bracket 25, a lifting line 31, a load bearing mechanism 29, a pulley lifting tool 49, a traction hoist 30, a load supporting mechanism 44, a portable h...

ABSTRACT A DERRICK STRUCTURE FOR REPLACEMENT OF A GENERATOR OF A WIND TURBINE The present disclosure relates to a derrick structure (100) for replacement of a generator (32) of a wind turbine configured to be fitted in a nacelle (21). The derrick structure includes a plurality of leg posts (46, 47) in front and re...

ABSTRACT A PORTABLE CRANE SYSTEM FOR SERVICING COMPONENTS OF NACELLE OF A WIND TURBINE The present disclosure relates to a portable crane system (100) for servicing components of nacelle of a wind turbine. The crane system configured to be fitted in a nacelle frame (15) of the wind turbine. The crane system (100) ...

ABSTRACT A PORTABLE STRUCTURE FOR REMOVAL AND INSTALLATION OF COMPONENTS WITHIN A NACELLE OF WIND TURBINE The present disclosure discloses a structure (28) for removal and installation of components within a nacelle (13) of wind turbine (100). The structure (28) comprises frames (32, 33) configured to be mounted o...

ABSTRACT SYSTEM FOR GENERATOR REPLACEMENT BY MULTI-MODEL STEEL STRUCTURE The present disclosure is related to a system of replacing one of the major components of failure generator of a wind turbine. The system (100) comprises an electrical winch (66) in the vicinity of the wind turbine, a pulley system includ...