The invention presents a wind turbine with a rotor connected to a generator provided at the top of a tower (4), the wind turbine comprising a heat generating component (901, 902) and a cooling circuit for removing heat from the heat generating component, the cooling circuit comprising a heat exchanger (10) mounted to the tower, a first conduit (11) for conducting a cooling medium from the heat generating component to the heat exchanger, and a second conduit (12) for conducting the cooling medium from the heat exchanger to the heat generating component, characterised in that the heat exchanger (10) is mounted to the tower (4) such that it can be displaced vertically along the tower, and that the first conduit (11) and the second conduit (12) each present a flexible portion (11', 12') or a disconnection arrangement (16).
