A cooling apparatus for an electric equipment comprising: first electric components (5, 5') second electric components (6, 6'), an evaporator as a second cooling element (2, 2') for receiving a heat load from the second electric components (6, 6'), the evaporator comprising a fluid channel (8, 8') for transferring heat received from the second electric components (6, 6') into the fluid channel, the fluid channel (8, 8') of the evaporator (2, 2') is arranged to receive a fluid (F3, F2') in a liquid state and a fluid (F2, F3') in a gas state, whereby the fluid (F2, F3') in the gas state reduces a partial pressure of the fluid in a liquid state and the temperature required for evaporating the fluid in the liquid state, such that the fluid (F3, F2') in the liquid state is evaporated, and a closed compartment (9, 9') enclosing the evaporator and the second electric components (6, 6'), characterized in that the apparatus additionally comprises: a generator as a first cooling element (1,1') receiving a heat load from the first electric components (5, 5') having a higher operating temperature than the second electric components, the generator comprising a fluid channel (7, 7') for receiving liquid and for evaporating a part of the received liquid with the heat load from the first electric components (5, 5'), the generator and the first electric components (5, 5') are enclosed in the closed compartment (9, 9'), and a third cooling element (3, 3') arranged outside of the closed compartment for receiving heated fluid from at least one of the generator and evaporator (1, 2, 1', 2') and for transferring heat from the heated fluid to the outside of the closed compartment (9, 9'). first electric components (5, 5') second electric components (6, 6'), an evaporator as a second cooling element (2, 2') for receiving a heat load from the second electric components (6, 6'), the evaporator comprising a fluid channel (8, 8') for transferring heat received from the second electric components (6, 6') into the fluid channel, the fluid channel (8, 8') of the evaporator (2, 2') is arranged to receive a fluid (F3, F2') in a liquid state and a fluid (F2, F3') in a gas state, whereby the fluid (F2, F3') in the gas state reduces a partial pressure of the fluid in a liquid state and the temperature required for evaporating the fluid in the liquid state, such that the fluid (F3, F2') in the liquid state is evaporated, and a closed compartment (9, 9') enclosing the evaporator and the second electric components (6, 6'), characterized in that the apparatus additionally comprises: a generator as a first cooling element (1,1') receiving a heat load from the first electric components (5, 5') having a higher operating temperature than the second electric components, the generator comprising a fluid channel (7, 7') for receiving liquid and for evaporating a part of the received liquid with the heat load from the first electric components (5, 5'), the generator and the first electric components (5, 5') are enclosed in the closed compartment (9, 9'), and a third cooling element (3, 3') arranged outside of the closed compartment for receiving heated fluid from at least one of the generator and evaporator (1, 2, 1', 2') and for transferring heat from the heated fluid to the outside of the closed compartment (9, 9'). a generator as a first cooling element (1,1') receiving a heat load from the first electric components (5, 5') having a higher operating temperature than the second electric components, the generator comprising a fluid channel (7, 7') for receiving liquid and for evaporating a part of the received liquid with the heat load from the first electric components (5, 5'), the generator and the first electric components (5, 5') are enclosed in the closed compartment (9, 9'), and a third cooling element (3, 3') arranged outside of the closed compartment for receiving heated fluid from at least one of the generator and evaporator (1, 2, 1', 2') and for transferring heat from the heated fluid to the outside of the closed compartment (9, 9').