Wind turbine with sealed off stator chamber

A wind turbine comprising:

• a wind turbine tower
• a nacelle provided on the wind turbine
• a wind turbine rotor hub rotatably mounted at the nacelle, the wind turbine rotor hub having at least one wind turbine blade mounted thereon
• a shaft coupled to the wind turbine rotor hub, and
• a generator coupled to the shaft, which generator comprises a rotor arranged rotatably in relation to a stator, which rotor comprises at least one superconducting rotor coil in a rotor chamber encapsulated by a rotor housing, and which stator comprises at least one stator coil of a conducting material, where the stator coil is in a stator chamber encapsulated by a stator housing;
• the superconducting rotor coil and the stator coil being arranged to have interacting magnetic fields for inducing a current in the stator coil when the rotor is rotated, and where there is a rotor-stator gap between the rotor housing and the stator housing, wherein
• the stator housing comprises a stator inner shell facing the rotor housing, wherein the stator inner shell comprises at least one inner shell element which is arranged between the stator iron and a stator housing end plate.