Abstract: A system for the transportation of wind turbine components with a vehicle, especially for the transportation of large wind turbine components, is provided. The vehicle includes at least two wheelsets, a first end frame connected to a first wheelset and a second end frame connected to a second wheelset. The vehicle further includes a support structure for carrying at least one wind turbine component, wherein the support structure is adapted to be detachably connected to the first end frame and/or to the second end frame. Thereby, the wind turbine component is connected solely to the support structure in a fixed but detachable manner.

Abstract: An arrangement and a method of rotating a hub of a wind turbine are provided. A wind turbine includes a hub mounted to a nacelle, whereby the hub is rotatable around an axis of rotation in respect to the nacelle. A rotor blade is arranged at the hub that leads to a torque around the axis of rotation of the hub. A counter weight is attached to the hub, whereby the counter weight has a mass that leads to a counter-torque around the axis of rotation. The counter-torque interacts with the torque during the installation of a second rotor blade to the hub. The counter weight is mounted to the hub by a mechanical arrangement that is rotatable in respect to the hub around the axis of rotation of the hub. The mechanical arrangement and the counter weight are rotatable in respect to the hub into a certain predetermined position.

Abstract: A direct driven wind turbine includes an electrical generator with a rotor and a stator, a hub for receiving a rotor blade, and actuator device. The hub is connected to the rotor of the electrical generator, and the hub and the rotor of the electrical generator are rotatable mounted in respect to the stator of the generator. The actuator device is constructed and arranged to rotate the hub of the wind turbine in respect to the stator of the electrical generator. The actuator device is the electrical generator, wherein the electrical generator of the wind turbine is used as a motor to rotate the hub of the wind turbine.

Abstract: A wind turbine hub transportation device is provided. The transportation device includes a hub receiving surface for receiving a wind turbine hub, a first beam, a second beam, and a center part connecting the first beam and the second beam. The first and second beam each have at least one first beam connector adapted for connecting the respective beam with a first lifter for lifting the transportation device. The center part includes a center connector adapted for making a connection to a second lifter for lifting the transportation device.

Abstract: A lifting system for lifting rotor blades of wind turbines includes a plurality of frame structures each being configured to support a rotor blade. Additionally, the lifting system includes a lifting structure which is attachable to a lifting device, and a number of lifting connectors configured to connect a pack of frame structures to the lifting structure. Furthermore, a method for lifting rotor blades of wind turbines by using a lifting device and a method for installation of rotor blades of wind turbines are provided.

Abstract: A transport structure for transporting and/or lifting a large scale generator, in particular a generator of a wind turbine is disclosed. A handling base is included with an upper side and a lower side and a first longitudinal end and second longitudinal end, and an interface arrangement at the handling base realized such that a generator can be releasably attached to the handling base in the direction of the upper side. A method for transporting and for lifting a large scale generator is disclosed.

Abstract: A method for renovating a well curb by lifting it to a first position, whereafter a compressible device is positioned around the well curb. Hereafter the well curb is lowered to a second position so that the compressible device is abutting the upper edge of the well, whereafter a casting material is injected into the cavity between the surface dressing and a filling around the well. Finally the well curb is lowered to a third and final position. Also, a compressible device for use in the method.

Abstract: An arrangement for lifting a tower wall portion of a wind turbine is provided. The arrangement includes a bar, a first holding member and a second holding member. The bar is connectable to a coupling element of a lift. The first and second holding members have respective first and second engagement portions adapted for engaging the tower wall portion at a first position and a second position respectively, the first position being different from the second position. The first and second holding members are releasably lockable at the bar such that the first engagement portion and the second engagement portion are a first distance away from each other. The first and second holding members are also releasably lockable at the bar such that the first engagement portion and the second engagement portion are a second distance away from each other, the second distance being different from the first distance.

Abstract: A wind turbine nacelle is provided. The wind turbine nacelle includes a longitudinal extension and a bottom part. The longitudinal extension has a rear end and a front end. At the bottom part, an opening is located which serves as an interface to a tower of a wind turbine at a designated assembly situation of the nacelle. A first detachable leg arrangement is attached to at least one of the front end and the rear end. A second detachable leg arrangement is attached at the bottom part. Further embodiments are directed to a transport system for a wind turbine nacelle and to a method for transporting a wind turbine nacelle.

Abstract: It is described a system (100) for handling a nacelle (190) of a wind turbine. The system (100) comprises a first supporting device (110) and a second supporting device (110). Each supporting device comprises (a) a crossbeam (120) extending between a left end section of the crossbeam (120) and a right end section of the crossbeam (120), the crossbeam (120) being adapted for supporting the nacelle (190) in between the left end section and the right end section, (b) a left pedestal (130) being attached to the left end section in a detachable manner, and (c) a right pedestal (130) being attached to the right end section in a detachable manner. It is further described a method for handling a nacelle (190) of a wind turbine by using the above described nacelle handling system (100).

Abstract: A method for positioning a large load into a transport position is provided. According to the method, the load is placed upon a frame structure with a substantially horizontal extension. The raising device is placed transport plane underneath the frame structure. The raising device is then extended in a vertical extension reaching between the transport plane and the frame structure so that the frame structure and the load are raised above the transport plane and are held in position by the raising device. Subsequently, the vertical extension of the raising device is decreased into the transport position. Further, a method for positioning a large load into a storage position and a transport system for such methods are also provided.

Abstract: A clamp for clamping a blade for a wind turbine is provided. The clamp includes a first contact surface adapted to contact a portion of a surface of the blade and a second contact surface adapted to contact another portion of the surface of the blade. The second contact surface is displaceable relative to the first contact surface. The clamp also includes a bar connected in an adjustable orientation relative to the first contact surface. Further, a method of installing wind turbine blades at a hub rotatable around a rotation axis along a horizontal direction is provided.

Abstract: A system for the transportation of wind turbine components with a vehicle, especially for the transportation of large wind turbine components, is provided. The vehicle includes at least two wheelsets, a first end frame connected to a first wheelset and a second end frame connected to a second wheelset. The vehicle further includes a support structure for carrying at least one wind turbine component, wherein the support structure is adapted to be detachably connected to the first end frame and/or to the second end frame. Thereby, the wind turbine component is connected solely to the support structure in a fixed but detachable manner.

Abstract: A wind turbine hub transportation device is provided. The transportation device includes a hub receiving surface for receiving a wind turbine hub, a first beam, a second beam, and a center part connecting the first beam and the second beam. The first and second beam each have at least one first beam connector adapted for connecting the respective beam with a first lifter for lifting the transportation device. The center part includes a center connector adapted for making a connection to a second lifter for lifting the transportation device.

Abstract: A method for renovating a well curb by lifting it to a first position, whereafter a compressible device is positioned around the well curb. Hereafter the well curb is lowered to a second position so that the compressible device is abutting the upper edge of the well, whereafter a casting material is injected into the cavity between the surface dressing and a filling around the well. Finally the well curb is lowered to a third and final position. Also, a compressible device for use in the method.