Importance

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Abstract

A method for cleaning a generator of a wind turbine is provided, including locking a wind turbine rotor, shutting off a generator; removing a cooling device such that an opening is accessible for maintenance purposes; inserting a cleaning agent into the opening such that the cleaning agent gets at least partially in effective contact with a winding and/or with a magnetic element; at least partially removing the cleaning agent from the generator; mounting the cooling device to the opening; and releasing the wind turbine rotor, wherein the cleaning agent is or includes a grease remover that is non-water-soluble and a fluid liquid such that the generator can be partially flushed with the grease remover, has a density larger than 0.6 g/cm³ and lower than 0.85 g/cm³, has kinematic viscosity larger than 1.3 mm²/s and lower than 2.5 mm²/s, and comprises N-Paraffins and hydrocarbons.

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First Claim