Abstract: A method (100) for operating a vehicle (1) with an electric drive-train (2), wherein this electric drivetrain (2) is fed via a DC voltage source (3) and a converter (4) for converting the DC voltage into a single-phase or multiphase AC voltage, comprising the steps: —it is detected (110) that the vehicle (1) is stopped; —it is checked (120) on the basis of at least one specified criterion (10) whether the vehicle (1) is expected to be stopped only briefly; —in response to the fact that the vehicle (1) is expected to be stopped only briefly, the vehicle (1) is transferred (130) from the ready-to-drive state into a disabled state, wherein in this disabled state the vehicle (1) is protected against unauthorized use but the converter (4) continues to be supplied with the DC voltage from the DC voltage source (3); —in response to the fact that the vehicle (1) is not expected to be stopped only briefly, at least one functional test of the electric drivetrain (2), said test being provided for powering down the elect

Abstract: A method (100) for operating a vehicle (1) with an electric drive-train (2), wherein this electric drivetrain (2) is fed via a DC voltage source (3) and a converter (4) for converting the DC voltage into a single-phase or multiphase AC voltage, comprising the steps: —it is detected (110) that the vehicle (1) is stopped; — it is checked (120) on the basis of at least one specified criterion (10) whether the vehicle (1) is expected to be stopped only briefly; —in response to the fact that the vehicle (1) is expected to be stopped only briefly, the vehicle (1) is transferred (130) from the ready-to-drive state into a disabled state, wherein in this disabled state the vehicle (1) is protected against unauthorized use but the converter (4) continues to be supplied with the DC voltage from the DC voltage source (3); —in response to the fact that the vehicle (1) is not expected to be stopped only briefly, at least one functional test of the electric drivetrain (2), said test being provided for powering down the elec

Abstract: A solar array is provided with a first heat-transfer fluid transporting line (parabolic trough loop) for transporting a first heat transfer fluid, and at least one further heat-transfer fluid transporting line for transporting a further heat transfer fluid arranged to receive solar energy from, for example, a parabolic-trough solar array. The first heat-transfer fluid transporting line and the further heat-transfer fluid transporting line are coupled to form an overall heat-transfer fluid transporting line (for example, as a parabolic trough loop). The first heat-transfer fluid transporting line is connected to at least one main line pump for pumping the first heat transfer fluid through the heat-transfer-fluid transporting line and the further heat-transfer fluid transporting line is connected to at least one further main line pump for pumping the further heat transfer fluid through the further heat-transfer-fluid transporting line. The first and further heat-transfer fluids may be the same fluid.

Abstract: The invention relates to a combination power plant which is embodied as a single shaft, power plant, essentially consisting of a gas turbine, a steam turbine and a generator which is connected therebetween. A coupling is arranged between the generator and the steam turbine, and at least one drive device, which is used to drive the single-shaft power plant, is also provided. The coupling is uncoupled during a turning operation and a control unit, which is used to control the rotational speed of the steam turbine, is provided.

Abstract: The invention relates to a combination power plant which is embodied as a single shaft, power plant, essentially consisting of a gas turbine, a steam turbine and a generator which is connected therebetween. A coupling is arranged between the generator and the steam turbine, and at least one drive device, which is used to drive the single-shaft power plant, is also provided. The coupling is uncoupled during a turning operation and a control unit, which is used to control the rotational speed of the steam turbine, is provided.